diff --git a/.github/actions/publish-apps/action.yml b/.github/actions/publish-apps/action.yml index b9c2375..19e994f 100644 --- a/.github/actions/publish-apps/action.yml +++ b/.github/actions/publish-apps/action.yml @@ -18,4 +18,4 @@ runs: run: pip install boto3 - name: 'Upload files' shell: bash - run: python Scripts/CDN/upload-app-files.py cdn_files ${{ inputs.sdk_version }} ${{ env.CDN_ID }} ${{ env.CDN_TOKEN_NAME }} ${{ env.CDN_TOKEN_VALUE }} + run: python Scripts/upload-app-files.py cdn_files ${{ inputs.sdk_version }} ${{ env.CDN_ID }} ${{ env.CDN_TOKEN_NAME }} ${{ env.CDN_TOKEN_VALUE }} diff --git a/.github/actions/release-apps/action.yml b/.github/actions/release-apps/action.yml index 0b4b08e..587a53b 100644 --- a/.github/actions/release-apps/action.yml +++ b/.github/actions/release-apps/action.yml @@ -19,7 +19,7 @@ runs: id: release shell: bash run: | - python release.py cdn_files/ + python Scripts/release.py cdn_files/ echo "sdk_version=$(cat sdk_version.txt)" >> "$GITHUB_OUTPUT" - name: 'Upload Artifact' uses: actions/upload-artifact@v4 diff --git a/.gitignore b/.gitignore index 8704f76..6926f26 100644 --- a/.gitignore +++ b/.gitignore @@ -15,3 +15,5 @@ sdkconfig.old .tactility/ dependencies.lock + +__pycache__ diff --git a/Apps/Vi/CMakeLists.txt b/Apps/BusyBoxVi/CMakeLists.txt similarity index 100% rename from Apps/Vi/CMakeLists.txt rename to Apps/BusyBoxVi/CMakeLists.txt diff --git a/Apps/Vi/LICENSE b/Apps/BusyBoxVi/LICENSE similarity index 100% rename from Apps/Vi/LICENSE rename to Apps/BusyBoxVi/LICENSE diff --git a/Apps/Vi/README.md b/Apps/BusyBoxVi/README.md similarity index 100% rename from Apps/Vi/README.md rename to Apps/BusyBoxVi/README.md diff --git a/Apps/Vi/main/CMakeLists.txt b/Apps/BusyBoxVi/main/CMakeLists.txt similarity index 100% rename from Apps/Vi/main/CMakeLists.txt rename to Apps/BusyBoxVi/main/CMakeLists.txt diff --git a/Apps/Vi/main/Include/libbb.h b/Apps/BusyBoxVi/main/Include/libbb.h similarity index 96% rename from Apps/Vi/main/Include/libbb.h rename to Apps/BusyBoxVi/main/Include/libbb.h index 34533df..519d817 100644 --- a/Apps/Vi/main/Include/libbb.h +++ b/Apps/BusyBoxVi/main/Include/libbb.h @@ -122,12 +122,18 @@ void* llist_pop(llist_t** elm); /* region Memory and strings */ +/* Allocations from the x*() functions are tracked, see bb_free_all() */ void* xmalloc(size_t size); void* xzalloc(size_t size); void* xrealloc(void* old, size_t size); char* xstrdup(const char* s); char* xstrndup(const char* s, int n); char* xasprintf(const char* format, ...) __attribute__((format(printf, 1, 2))); +/* vi frees x*() allocations with plain free() */ +void bb_free(void* ptr); +#define free bb_free +/* Frees every x*() allocation that is still live */ +void bb_free_all(void); char* skip_whitespace(const char* s); char* skip_non_whitespace(const char* s); diff --git a/Apps/Vi/main/Source/libbb.c b/Apps/BusyBoxVi/main/Source/libbb.c similarity index 83% rename from Apps/Vi/main/Source/libbb.c rename to Apps/BusyBoxVi/main/Source/libbb.c index 90c2753..df266da 100644 --- a/Apps/Vi/main/Source/libbb.c +++ b/Apps/BusyBoxVi/main/Source/libbb.c @@ -7,6 +7,9 @@ */ #include "libbb.h" +/* This file implements bb_free() itself, so free() means libc's own below */ +#undef free + struct globals* ptr_to_globals; const char* applet_name = "vi"; @@ -27,7 +30,7 @@ void* llist_pop(llist_t** head) { } void* data = temp->data; *head = temp->link; - free(temp); + bb_free(temp); return data; } @@ -35,12 +38,49 @@ void* llist_pop(llist_t** head) { /* region Memory and strings */ +/* + * Every block handed out below is tracked, so bb_free_all() can release what vi itself never frees + * (it relies on process exit, which an app instance doesn't have). + */ +typedef union AllocHeader { + struct { + union AllocHeader* prev; + union AllocHeader* next; + } links; + max_align_t alignment; +} AllocHeader; + +static AllocHeader* allocations = NULL; + +static void* track(AllocHeader* header) { + header->links.prev = NULL; + header->links.next = allocations; + if (allocations != NULL) { + allocations->links.prev = header; + } + allocations = header; + return header + 1; +} + +static AllocHeader* untrack(void* ptr) { + AllocHeader* header = (AllocHeader*)ptr - 1; + if (header->links.prev != NULL) { + header->links.prev->links.next = header->links.next; + } else { + allocations = header->links.next; + } + if (header->links.next != NULL) { + header->links.next->links.prev = header->links.prev; + } + return header; +} + void* xmalloc(size_t size) { - void* ptr = malloc(size); - if (ptr == NULL && size != 0) { + AllocHeader* header = malloc(sizeof(AllocHeader) + size); + if (header == NULL) { bb_simple_error_msg_and_die("out of memory"); } - return ptr; + return track(header); } void* xzalloc(size_t size) { @@ -50,18 +90,34 @@ void* xzalloc(size_t size) { } void* xrealloc(void* old, size_t size) { - void* ptr = realloc(old, size); - if (ptr == NULL && size != 0) { + if (old == NULL) { + return xmalloc(size); + } + AllocHeader* header = realloc(untrack(old), sizeof(AllocHeader) + size); + if (header == NULL) { bb_simple_error_msg_and_die("out of memory"); } - return ptr; + return track(header); } -char* xstrdup(const char* s) { - char* t = strdup(s); - if (t == NULL) { - bb_simple_error_msg_and_die("out of memory"); +void bb_free(void* ptr) { + if (ptr != NULL) { + free(untrack(ptr)); } +} + +void bb_free_all(void) { + while (allocations != NULL) { + AllocHeader* next = allocations->links.next; + free(allocations); + allocations = next; + } +} + +char* xstrdup(const char* s) { + size_t size = strlen(s) + 1; + char* t = xmalloc(size); + memcpy(t, s, size); return t; } @@ -257,7 +313,7 @@ void* xmalloc_open_read_close(const char* filename, size_t* maxsz_p) { } ssize_t n = safe_read(fd, buf + size, capacity - size - 1); if (n < 0) { - free(buf); + bb_free(buf); close(fd); return NULL; } @@ -282,14 +338,17 @@ void bb_putchar(int ch) { /* region Errors */ +/* exit() would terminate the whole device, so dying unwinds to main() instead */ +jmp_buf bb_die_jmp; + void bb_show_usage(void) { fputs("Usage: vi [-c CMD] [-R] [-H] [FILE]...\n", stderr); - exit(EXIT_FAILURE); + longjmp(bb_die_jmp, 1); } void bb_simple_error_msg_and_die(const char* s) { fprintf(stderr, "%s: %s\n", applet_name, s); - exit(EXIT_FAILURE); + longjmp(bb_die_jmp, 1); } /* endregion */ diff --git a/Apps/BusyBoxVi/main/Source/main.c b/Apps/BusyBoxVi/main/Source/main.c new file mode 100644 index 0000000..0555dbc --- /dev/null +++ b/Apps/BusyBoxVi/main/Source/main.c @@ -0,0 +1,23 @@ +/* + * Licensed under GPLv2, see file LICENSE in this app's directory. + */ +#include +#include + +int vi_main(int argc, char** argv); +void bb_free_all(void); +void vi_cleanup(void); +extern jmp_buf bb_die_jmp; + +int main(int argc, char* argv[]) { + int result; + if (setjmp(bb_die_jmp) == 0) { + result = vi_main(argc, argv); + } else { + vi_cleanup(); + result = EXIT_FAILURE; + } + /* vi leaves its buffers to process exit, which an app instance doesn't have */ + bb_free_all(); + return result; +} diff --git a/Apps/Vi/main/Source/read_key.c b/Apps/BusyBoxVi/main/Source/read_key.c similarity index 100% rename from Apps/Vi/main/Source/read_key.c rename to Apps/BusyBoxVi/main/Source/read_key.c diff --git a/Apps/Vi/main/Source/vi.c b/Apps/BusyBoxVi/main/Source/vi.c similarity index 99% rename from Apps/Vi/main/Source/vi.c rename to Apps/BusyBoxVi/main/Source/vi.c index 34932f6..a5af638 100644 --- a/Apps/Vi/main/Source/vi.c +++ b/Apps/BusyBoxVi/main/Source/vi.c @@ -626,16 +626,35 @@ static int mysleep(int hund) } //----- Set terminal attributes -------------------------------- +static bool termios_saved; + static void rawmode(void) { // no TERMIOS_CLEAR_ISIG: leave ISIG on - allow signals set_termios_to_raw(STDIN_FILENO, &term_orig, TERMIOS_RAW_CRNL); + termios_saved = true; } static void cookmode(void) { + if (!termios_saved) + return; fflush_all(); tcsetattr_stdin_TCSANOW(&term_orig); + termios_saved = false; +} + +// Set while the alternate screen buffer is in use, so vi_cleanup() can leave it +static smallint alt_screen_active; + +void vi_cleanup(void) +{ + if (alt_screen_active) { + // "Use normal screen buffer, restore cursor" + write1(ESC"[?1049l"); + alt_screen_active = 0; + } + cookmode(); } //----- Terminal Drawing --------------------------------------- @@ -5037,6 +5056,7 @@ int vi_main(int argc, char **argv) #endif // "Save cursor, use alternate screen buffer, clear screen" write1(ESC"[?1049h"); + alt_screen_active = 1; // This is the main file handling loop optind = 0; while (1) { @@ -5048,6 +5068,7 @@ int vi_main(int argc, char **argv) } // "Use normal screen buffer, restore cursor" write1(ESC"[?1049l"); + alt_screen_active = 0; return 0; } diff --git a/Apps/Vi/manifest.properties b/Apps/BusyBoxVi/manifest.properties similarity index 70% rename from Apps/Vi/manifest.properties rename to Apps/BusyBoxVi/manifest.properties index aeaac75..fbae5ea 100644 --- a/Apps/Vi/manifest.properties +++ b/Apps/BusyBoxVi/manifest.properties @@ -1,14 +1,14 @@ manifest.version=0.3 target.sdk=0.8.0-dev target.platforms=esp32,esp32s3,esp32c6,esp32p4,posix-x86_64 -id=tactility.vi +id=tactility.busyboxvi version.name=0.1.0 version.code=1 name=Vi description=BusyBox vi text editor -app.0.id=tactility.vi -app.0.name=Vi +app.0.id=tactility.busyboxvi +app.0.name=BusyBox vi app.0.binary=vi app.0.hidden=true app.0.headless=true -app.0.stack.depth=8192 +app.0.stack.depth=4096 diff --git a/Apps/Neatvi/CMakeLists.txt b/Apps/Neatvi/CMakeLists.txt new file mode 100644 index 0000000..cd22471 --- /dev/null +++ b/Apps/Neatvi/CMakeLists.txt @@ -0,0 +1,13 @@ +# tactility-cmakelists-version: 1 +cmake_minimum_required(VERSION 3.20) + +if (NOT DEFINED ENV{TACTILITY_SDK_PATH}) + message(FATAL_ERROR "TACTILITY_SDK_PATH environment variable is not set") +endif() + +get_filename_component(TACTILITY_SDK_PATH "$ENV{TACTILITY_SDK_PATH}" ABSOLUTE) +include("${TACTILITY_SDK_PATH}/TactilitySDK.cmake") + +tactility_project_pre(vi) +project(vi) +tactility_project_post(vi) diff --git a/Apps/Neatvi/LICENSE b/Apps/Neatvi/LICENSE new file mode 100644 index 0000000..33c2edf --- /dev/null +++ b/Apps/Neatvi/LICENSE @@ -0,0 +1,15 @@ + +Copyright (C) 2015-2026 Ali Gholami Rudi + +Permission to use, copy, modify, and/or distribute this software for any +purpose with or without fee is hereby granted, provided that the above +copyright notice and this permission notice appear in all copies. + +THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + diff --git a/Apps/Neatvi/README.md b/Apps/Neatvi/README.md new file mode 100644 index 0000000..30c21da --- /dev/null +++ b/Apps/Neatvi/README.md @@ -0,0 +1,33 @@ +# Vi + +The [neatvi](https://github.com/aligrudi/neatvi) text editor for the Tactility terminal. + +## Usage + +Run it from the Terminal app: + +``` +vi [-v] [-e] [FILE]... +``` + +- `-v`: start in vi mode (default) +- `-e`: start in ex mode + +## Features + +- vi and ex commands, including `:w`, `:q`, `:wq`, `:e`, `:r`, `:s/old/new/` +- Regular expression search and substitution +- Multiple buffers, registers, marks, undo/redo +- Syntax highlighting (see `conf.c`) + +Not supported: `:!` shell commands, filters and pipes, and LSP support (Tactility can't start other processes). +The terminal has no Home/End/PgUp/PgDn keys: use `0`, `$`, `Ctrl+B` and `Ctrl+F`. + +## Source + +`main/Source` holds neatvi (upstream commit `26e9cad`), unmodified, without `cmd.c`, `lsp.c`, `json.c` and `stag.c`. +`main/Source/tactility.c` replaces `cmd.c` and `lsp.c`, which need `fork()`. + +## License + +neatvi is licensed under the ISC license, see [LICENSE](LICENSE). diff --git a/Apps/Neatvi/main/CMakeLists.txt b/Apps/Neatvi/main/CMakeLists.txt new file mode 100644 index 0000000..4641eaa --- /dev/null +++ b/Apps/Neatvi/main/CMakeLists.txt @@ -0,0 +1,12 @@ +include("$ENV{TACTILITY_SDK_PATH}/TactilitySDK.cmake") + +file(GLOB_RECURSE SOURCE_FILES Source/*.c) +tactility_component_register(SRCS ${SOURCE_FILES}) + +# neatvi code style (third-party, kept unmodified) +set(NEATVI_COMPILE_OPTIONS -Wno-missing-field-initializers -Wno-char-subscripts -Wno-implicit-fallthrough -Wno-format-truncation) +if (DEFINED COMPONENT_LIB) + target_compile_options(${COMPONENT_LIB} PRIVATE ${NEATVI_COMPILE_OPTIONS}) +else () + target_compile_options(${PROJECT_NAME} PRIVATE ${NEATVI_COMPILE_OPTIONS}) +endif () diff --git a/Apps/Neatvi/main/Source/README.neatvi b/Apps/Neatvi/main/Source/README.neatvi new file mode 100644 index 0000000..e5d35c6 --- /dev/null +++ b/Apps/Neatvi/main/Source/README.neatvi @@ -0,0 +1,432 @@ +NEATVI +====== + +Neatvi is a small vi/ex editor for editing UTF-8 text. It supports +syntax highlighting, multiple windows, right-to-left languages, +keymaps, and the language server protocol. + +CONFIGURATION +------------- + +If the EXINIT environment variable is defined, Neatvi executes its +contents as ex commands at startup. Otherwise, it executes the ex +commands in $HOME/.neatvi, if present. They can set the value of +Neatvi options, change syntax highlighting colours, define new or +modify existing keymaps, or define q-commands. The example .neatvi +section of this file demonstrates this. To change syntax highlighting +and text direction patterns, conf.h must be modified. + +The :hl (:highlight) ex-mode command changes syntax highlighting +colours; see the syntax highlighting section of this file for the +default set of highlighting rules. The :cm command switches the +current keymap. Also, when in input mode, ^e activates the English +keymap and ^f switches to the alternate keymap (the last keymap +specified with :cm). The :mk (:mapkey) command modifies key mappings +of the current keymap. + +Sadly, VTE-based terminals such as GNOME's implement a +backward-incompatible extension of virtual terminal escape codes to +render bidirectional text by default. When using these terminal, the +the value of the vte option must be changed to 1. + +COMMANDS +-------- + +Commands not available in ex(1): + +:cm[ap][!] [kmap] + Without argument, prints the current keymap name. When kmap + is given, it switches to the given keymap; with !, it sets the + alternate keymap as well. +:ft [filetype] + Without filetype, prints the current file type. + When filetype is specified, sets the file type of the + current ex buffer. +:ta[g] tag + Jumps to tag (tags file: TAGPATH environment variable or ./tags). +:tn[ext] + Jumps to the next matching tag. +:tp[rev] + Jumps to the previous matching tag. +:tt + Pushes the current cursor position to the tag stack. +:tc + Closes the tags file and resets the tag stack. +:po[p] + Pops the tag stack. +:b[uffer] [buf] + Without buf, prints the buffer list. If buf is given and is a + buffer number or alias, it switches to the given buffer. Also, + buf can be -, +, !, and ~, to switch to the previous buffer, + switch to the next buffer, delete the current buffer, and + renumber buffers, respectively. +:rs reg + Reads dot-terminated lines (similar to :a command) from ex input + and copies them to the given yank buffer. +:rx reg cmd + Like :! command, executes cmd. However, the contents of the + specified yank buffer is given to the command as input, and the + output of the command is written to the same buffer. +:rk reg path + Connects to a unix socket, writes the contents of the given buffer + to it, and reads from the socket into the buffer. +:ra reg + Similar to :@ command, executes the contents of the given buffer. + Before executing the buffer, however, it replaces ^rx with the + contents of buffer x, and ^vx with x, in which x is any character. +:ec[ho] msg + Prints the given message (useful in ex scripts or q-commands). +:hl name [flags] [fg] [bg] + Specifies syntax highlighting colours. Flags can be a combination + of b for bold, i for italic, and r for reversed mode. Fg and bg, + if present, specify the foreground and background colours. + Colours can be numbers from 0 to 255; numbers greater than 15 can + be used only if the terminal supports the 256-colour palette. +:mk key [def] + Maps a key to the given character in the current keymap. If def is + missing, the mapping is reset. +:mc ch [def] + Defines a character placeholder for UTF-8 character ch. For + instance, "mc  ^r" maps ^r; ^v can be used to escape non-printable + characters. +:cn[ext] + Opens the next item in quick fix list (* yank buffer). +:cp[rev] + Opens the previous item in quick fix list. +:cc + Jumps to the current quick fix item. +:lsp[open] cmd + Executes cmd as the LSP server (see the LSP section). +:lspc[lose] + Terminates the LSP server. +:lspg[oto] + Goes to the definition of the identifier under the cursor (LSP client). + Pushes the current cursor position to the tag stack (^t to go back). +:lspf[ind] + Finds the references of the identifier under the cursor (LSP client). + It fills the * yank buffer (quick fix list). +:lspd[oc] buf + Copies hover documentation (LSP client) of the identifier under the + cursor into the given yank buffer. + +New key mappings: +- ^a in normal mode: searches for the word under the cursor. +- ^p in insert mode: inserts the contents of the default yank buffer. +- ^rX in insert mode: inserts the contents of yank buffer X. +- z>, z<, 2z>, and 2z< in normal mode: changes the value of td option. +- ^e and ^f in insert mode: switches to the English and alternate keymap. +- ze and zf in normal mode: switches to the English and alternate keymap. +- gu, gU, and g~ in normal mode: switches character case. +- ^l in normal mode: updates terminal dimensions (after resizing it). +- ^] and ^t in normal mode: jumps to tag and pops tag stack. +- gf in normal mode: edits the file whose address is under the cursor. +- gl in normal mode: like gf, but it reads line and column numbers too. +- gd in normal mode: goes to global definition (see filetype struct in conf.h). +- ^ws, ^wo, ^wc, ^wj, ^wk, ^wx in normal mode: manages windows. +- ^wgf, ^wgl, ^w^] in normal mode: executes gf, gl, ^] in a new window. +- zj, zk, zD: equivalent to :b+, :b-, :b !. +- zJ, zK: equivalent to :next, :prev. +- ^a in ex, search, and pipe prompts: inserts from history lines. +- q in normal mode: see the quick access section. +- q;: lists and filters buffers. +- q,: lists and filters files listed in ./ls. +- q=: lists and filters files tags in ./tags. +- q*: lists and filters quick fix items. + +Other noteworthy differences with vi(1): +- Neatvi assumes POSIX extended regular expressions (ERE) in search + patterns, conf.h variables, and even tags files. +- If paths start with =, they are assumed to be relative to the + directory of the current file. +- Neatvi highlights files whose names end with ls as directory + listings; combined with the gl command, which opens the file + under the cursor, it can be used to explore and edit files + under a directory. For instance, git ls-files >ls && neatvi ls. +- In addition to the standard single-letter yank buffers, Neatvi + supports a set of extended buffers whose two-letter names begin + with a backslash, like \x. +- The :cn and :cp ex commands and q* vi command read the * buffer, + which must contain lines with the "path:line:offset: description" + format. For instance, after the "rx * git grep -Fwn --column ']'" + command, one can open the occurrences of the word under the + cursor using :cn, :cp, and q* commands. +- The output of :make is copied into the quick fix buffer (*). + +Note that in :rs command, input lines are read from ex input stream +(unlike :a), to make it usable in @ commands and ex scripts (files +passed to :so). This allows setting the value of yank buffers in ex +files (see the example .neatvi section for examples). + +OPTIONS +------- + +To improve Neatvi's performance, shaping, character reordering, and +syntax highlighting can be disabled by defining the EXINIT environment +variable as "set noshape | set noorder | set nohl | set td=+2". + +Options supported in Neatvi: + +td, textdirection + Current direction context. The following values are meaningful: + * +2: always left-to-right. + * +1: follow conf.h's dircontexts[]; left-to-right for others. + * -1: follow conf.h's dircontexts[]; right-to-left for others. + * -2: always right-to-left. + The default value is 0, which assumes left-to-right if the first + character of the line is single-byte; otherwise, it follows + dircontexts[]. +shape + If set, Arabic/Farsi letter shaping will be performed. +order + If set, characters will be reordered based on the rules defined + in conf.h. If the value is 1, only lines with at least one + multi-byte UTF-8 character are reordered. If it is 2, all lines + are reordered. +hl, highlight + If set, text will be highlighted based on syntax highlighting + rules in conf.h. +hll, highlightline + If set, the current line will be highlighted. +lim, linelimit + Lines longer than this value are not reordered or highlighted. +ru, ruler + Indicates when to redraw the status line: + * 0: never. + * 1: always. + * 2: when multiple windows are visible. + * 4: when the current file changes. +hist, history + Indicates the number of lines remembered for ex, search, and + pipe prompts. Zero disables command history. +ai, autoindent + As in vi(1). +aw, autowrite + As in vi(1). Some commands check the current buffer's modified + status, and fail if it has unsaved changes (e.g., :n/:prev, + :ta/:po, :mak). For such commands, if the autowrite option is + set, the buffer is saved automatically before the command begins. + Alternatively, by appending a ! after the name of these commands, + they ignore the modified status of the buffer. +ic, ignorecase + As in vi(1). +ts, tabstop + As in vi(1). +wa, writeany + As in vi(1). + +MARKS AND BUFFERS +----------------- + +Special marks: +- * the position of the previous change +- [ the first line of the previous change +- ] the last line of the previous change + +Special yank buffers: +- / the previous search keyword +- : the previous ex command +- ! the previous pipe command +- % the name of the current file +- " the default yank buffer +- ; the current line +- . the last vi command +- # cursor line number +- ^ cursor line offset +- ] the word under the cursor +- \/ search history +- \: ex command history +- \! pipe command history + +QUICK ACCESS +------------ + +When q is pressed in normal mode, Neatvi prints the list of buffers at +the bottom of the screen and waits for a key. + +- If the key is a digit, it switches to its corresponding buffer. +- If the key is enter, it switches to the first buffer. +- If the key is , (comma), Neatvi lists the lines in ./ls as files, + and prompts for a keyword to filter them. An empty keyword selects + the first item, and \N (for digit N) selects the N-th item. +- If the key is =, Neatvi lists the tags in ./tags, and prompts + for a keyword to filter them. +- If the key is ;, Neatvi lists the buffers and prompts for a keyword + to filter them. +- If the key is *, Neatvi lists the positions in the * yank buffer + and prompts for a keyword to filter them. +- If it is a letter and the extended buffer with that letter (\X for + letter X) is defined, the contents of that buffer is executed. +- If the key is a letter, but the extended buffer with that letter + is not defined, Neatvi executes ECMD (defined in conf.h) with the + following parameters: i) the letter, ii) the current file, iii) the + current line number, and iv) the current line offset. What ECMD + writes to its standard output, Neatvi executes as ex commands. + +ECMD commands can be used to implement interesting features; neatvi.sh +is an example ECMD shell script. + +AUTO-COMPLETION +--------------- + +When the hist option is nonzero, Neatvi suggests the most recent +matching entry when reading user input for :, /, and ! prompts; ^a +completes the input using the suggestion. + +LANGUAGE SERVER PROTOCOL +------------------------ + +Neatvi has an LSP client for finding the references of identifiers +and opening their definition locations. It assumes the current +directory to be the project root when it executes the LSP server. +When the LSP server is running, the ^] vi command executes :lspg +instead of :ta. The commands section lists lsp* commands. + +Note that for C/C++, LSP servers usually require the +compile_commands.json file to be present in the project root for +indexing the source files; this file can be generated manually, or +using available tools. + +EXAMPLE .NEATVI +--------------- + +" This an example ~/.neatvi file. + +" general options, including hl, mk, and mc commands +set hist=20 +mc  ^v +mc  ^r +hl & - 8 + +" Q-commands (quick access commands); they can also be done using +" ECMD; see the quick access section and neatvi.sh. + +" qa invokes git-add +rs \a +!git add % +. +" qq switches to the previous buffer +rs \q +e # +. +" ql opens ./ls file +rs \l +e ls +. +" qn jumps to the next quick fix item (cn) +rs \n +cn +. +" qg uses git-grep to find the occurrences of the word under the cursor +rs \g +rx * git grep -Fwn --column ']' \| sed -E 's/^([^:]+:[^:]+:[^:]+:)[ ]*([^ ])/\\1 \\2/' +e /tmp/.qfix.ls | %d - | pu * | w! | 1 | cr +. +" qp starts an LSP server for C/C++ +rs \p +lsp clangd --background-index +. +" qP starts an LSP server for Go +rs \P +lsp gopls +. +" qf finds references to the word under the cursor (lspf) +rs \f +lspf +e /tmp/.qfix.ls | %d - | pu * | w! | 1 | cr +. +" qd shows symbol documentation (lspd) +rs \d +lspd l +e /tmp/.vidoc.txt | %d - | pu l | w! | 1 +. + +SYNTAX HIGHLIGHTING +------------------- + +The default set of syntax highlighting rules are as follows. + +" general text +hl . - " all text +hl ^ - - 11 " current line (hll option) +hl ~ r " text in reverse direction +hl & - 2 " mapped characters (mc command) +hl , - 2 " lines after EOF + +" for programming languages +hl k b 3 " general keywords +hl r - 2 " control flow keywords +hl o b 3 " operators +hl p b 2 " preprocessor directives +hl m b 4 " imported packages +hl t - 3 " built-in types and values +hl b - 3 " built-in functions +hl c i 4 " comments +hl d b 4 " top-level definitions +hl f b " called functions +hl 0 - 5 " numerical constants +hl h - 5 " character constants +hl s - 5 " string literals +hl v - 3 " macros +hl i - " identifiers +hl x - 6 " identifier context + +" ex-mode and status line +hl _ - 7 0 " status line +hl Z - 7 0 " status line of inactive windows +hl N b 2 " status line normal mode +hl I b 4 " status line insert mode +hl F b 3 " status line file name +hl L b 5 " status line line number +hl W b 1 " status line w/r flags +hl K - " keymap name +hl C - 5 " status line column number +hl T - " status line line count +hl X b 7 0 " ex-mode output +hl : - 7 0 " ex-mode prompts +hl ! b 7 0 " ex-mode warnings +hl Q b 7 0 " quick leap header +hl U - " quick leap items +hl D - " quick leap item dirname +hl B b 3 " quick leap item basename +hl 1 b 1 " quick leap item identifiers +hl 2 - 4 " quick leap item description + +" diff file type +hl xD b " diff header +hl x@ - 6 " diff hunk information line +hl x- - 1 " diff deleted lines +hl x+ - 2 " diff added lines +hl x= - 0 " diff preserved lines + +" file listings +hl xd b 8 " path dirname +hl xb b 1 " path basename +hl xn - 2 " path line number +hl xs - 6 " path symbol +hl xl - 8 " the rest of the line +hl x# - 4 " comments + +" messages +hl mh b 6 " mail headers +hl ms b 4 " Subject header +hl mf b 2 " From header +hl mt b 5 " To header +hl mc b 5 " CC header +hl mr i 2 " replied text +hl ml b - 3 " labels + +" neatmail listing +hl mN b - 6 " new mails +hl mA b 0 5 " high priority +hl mB b 0 3 " priority level 2 +hl mC b 0 3 " priority level 3 +hl mD - 8 " low priority +hl mF b - 7 " flagged +hl mI i 7 " ignored lines +hl mX b " commands +hl mS b 6 " status flags +hl m0 - 12 " ignored zeros of the message number +hl m1 b 4 " message number +hl mM - 3 " mbox path +hl mR - 5 " message from +hl mU - 5 " message subject diff --git a/Apps/Neatvi/main/Source/conf.c b/Apps/Neatvi/main/Source/conf.c new file mode 100644 index 0000000..adf71ef --- /dev/null +++ b/Apps/Neatvi/main/Source/conf.c @@ -0,0 +1,311 @@ +#include +#include +#include +#include "vi.h" +#include "conf.h" +#include "kmap.h" + +int conf_dirmark(int idx, char **pat, int *ctx, int *dir, int *grp) +{ + if (idx < 0 || idx >= LEN(dirmarks)) + return 1; + if (pat) + *pat = dirmarks[idx].pat; + if (ctx) + *ctx = dirmarks[idx].ctx; + if (dir) + *dir = dirmarks[idx].dir; + if (grp) + *grp = dirmarks[idx].grp; + return 0; +} + +int conf_dircontext(int idx, char **pat, int *ctx) +{ + if (idx < 0 || idx >= LEN(dircontexts)) + return 1; + if (pat) + *pat = dircontexts[idx].pat; + if (ctx) + *ctx = dircontexts[idx].dir; + return 0; +} + +static int conf_hldefs[384] = { + /* general text */ + ['.'] = 0, /* all text */ + ['^'] = SYN_BGMK(11), /* current line highlight (hll option) */ + ['~'] = SYN_RV, /* text in reverse direction */ + ['&'] = 4, /* mapped characters (mc command) */ + [','] = SYN_BD | 4, /* lines after EOF */ + /* for programming languages */ + ['k'] = SYN_BD | 3, /* general keywords */ + ['r'] = 2, /* control flow keywords */ + ['o'] = SYN_BD | 3, /* operators */ + ['p'] = SYN_BD | 2, /* preprocessor directives */ + ['n'] = SYN_BD | 4, /* include directives */ + ['m'] = SYN_BD | 4, /* imported packages */ + ['t'] = 3, /* built-in types and values */ + ['b'] = 3, /* built-in functions */ + ['c'] = SYN_IT | 4, /* comments */ + ['d'] = SYN_BD | 4, /* top-level definitions */ + ['f'] = SYN_BD, /* called functions */ + ['0'] = 5, /* numerical constants */ + ['h'] = 5, /* character constants */ + ['s'] = 5, /* string literals */ + ['v'] = 3, /* macros */ + ['i'] = 0, /* identifiers */ + ['x'] = 6, /* identifier context */ + /* ex-mode and status line */ + ['_'] = SYN_BGMK(0) | 7, /* status line */ + ['Z'] = SYN_BGMK(0) | 7, /* status line of inactive windows */ + ['N'] = 2 | SYN_BD, /* status line normal mode */ + ['I'] = 4 | SYN_BD, /* status line insert mode */ + ['F'] = 3 | SYN_BD, /* status line file name */ + ['L'] = 5 | SYN_BD, /* status line line number */ + ['W'] = 1 | SYN_BD, /* status line w/r flags */ + ['K'] = 0, /* keymap name */ + ['C'] = 5, /* status line column number */ + ['T'] = 0, /* status line line count */ + ['X'] = SYN_BGMK(0) | 7 | SYN_BD, /* ex-mode output lines */ + [':'] = SYN_BGMK(0) | 7, /* ex-mode prompts */ + ['!'] = SYN_BGMK(0) | 7 | SYN_BD, /* ex-mode warnings */ + ['Q'] = SYN_BGMK(0) | 7 | SYN_BD, /* quick leap header */ + ['U'] = 0, /* quick leap list */ + ['D'] = 0, /* quick leap item dirname */ + ['B'] = 3 | SYN_BD, /* quick leap item basename */ + ['1'] = 1 | SYN_BD, /* quick leap item identifier */ + ['2'] = 4, /* quick leap item description */ + /* diff file type */ + [SX('D')] = SYN_BD, /* diff header */ + [SX('@')] = 6, /* diff hunk information line */ + [SX('-')] = 1, /* diff deleted lines */ + [SX('+')] = 2, /* diff added lines */ + [SX('=')] = 0, /* diff preserved lines */ + /* file listings */ + [SX('d')] = 8 | SYN_BD, /* path dirname */ + [SX('b')] = 1 | SYN_BD, /* path basename */ + [SX('n')] = 2, /* path line number */ + [SX('s')] = 6, /* path symbol name */ + [SX('l')] = 8, /* the rest of the line */ + [SX('c')] = 4, /* comments */ + /* messages */ + [SM('h')] = 6 | SYN_BD, /* mail headers */ + [SM('s')] = 4 | SYN_BD, /* subject */ + [SM('f')] = 2 | SYN_BD, /* from */ + [SM('t')] = 5 | SYN_BD, /* to */ + [SM('c')] = 5 | SYN_BD, /* cc */ + [SM('r')] = 2 | SYN_IT, /* replied text */ + [SM('l')] = SYN_BGMK(3) | SYN_BD, /* label */ + /* neatmail listing */ + [SM('N')] = SYN_BD | SYN_FGMK(0) | SYN_BGMK(6), /* new mails */ + [SM('A')] = SYN_BD | SYN_FGMK(0) | SYN_BGMK(5), /* high priority */ + [SM('B')] = SYN_BD | SYN_FGMK(0) | SYN_BGMK(3), /* priority level 2 */ + [SM('C')] = SYN_BD | SYN_FGMK(0) | SYN_BGMK(3), /* priority level 3 */ + [SM('D')] = 8, /* low priority */ + [SM('F')] = SYN_BD | SYN_BGMK(7), /* flagged */ + [SM('I')] = 7 | SYN_IT, /* ignored lines */ + [SM('X')] = SYN_BD, /* commands */ + [SM('S')] = 6 | SYN_BD, /* status flags */ + [SM('0')] = 12, /* ignored zeros of message numbers */ + [SM('1')] = 4 | SYN_BD, /* message numbers */ + [SM('M')] = 3, /* mbox paths */ + [SM('R')] = 5, /* message from */ + [SM('U')] = 5, /* message subject */ +}; + +int conf_hlnum(char *name) +{ + if (name[0] == 'x' && isprint((unsigned char) name[1])) + return SX(name[1]); + if (name[0] == 'm' && isprint((unsigned char) name[1])) + return SM(name[1]); + return name[0]; +} + +int conf_hl(int id) +{ + return id >= 0 && id < LEN(conf_hldefs) ? conf_hldefs[id] : 0; +} + +void conf_hlset(int id, int att) +{ + if (id >= 0 && id < LEN(conf_hldefs)) + conf_hldefs[id] = att; +} + +int conf_highlight(int idx, char **ft, int **att, char **pat, int *end) +{ + if (idx < 0 || idx >= LEN(highlights)) + return 1; + if (ft) + *ft = highlights[idx].ft; + if (att) + *att = highlights[idx].att; + if (pat) + *pat = highlights[idx].pat; + if (end) + *end = highlights[idx].end; + return 0; +} + +int conf_filetype(int idx, char **ft, char **pat) +{ + if (idx < 0 || idx >= LEN(filetypes)) + return 1; + if (ft) + *ft = filetypes[idx].ft; + if (pat) + *pat = filetypes[idx].pat; + return 0; +} + +int conf_mode(void) +{ + return MKFILE_MODE; +} + +char *kmap_map(int id, int key) +{ + static char cs[4]; + cs[0] = key; + return id < LEN(kmaps) && kmaps[id][key] ? kmaps[id][key] : cs; +} + +void kmap_def(int id, int key, char *def) +{ + static char defs[512]; + static int defs_pos; + int len; + if (!def) { + if (id >= 0 && id < LEN(kmaps) && key >= 0 && key < 256) + kmaps[id][key] = NULL; + return; + } + len = strlen(def) + 1; + if (id >= 0 && id < LEN(kmaps) && key >= 0 && key < 256) { + if (len < sizeof(defs) - defs_pos) { + memcpy(defs + defs_pos, def, len); + kmaps[id][key] = defs + defs_pos; + defs_pos += len; + } + } +} + +int kmap_find(char *name) +{ + int i; + for (i = 0; i < LEN(kmaps); i++) + if (name && kmaps[i][0] && !strcmp(name, kmaps[i][0])) + return i; + if (!kmaps[LEN(kmaps) - 1][0]) { + kmap_def(LEN(kmaps) - 1, 0, name); + return LEN(kmaps) - 1; + } + return -1; +} + +char *conf_digraph(int c1, int c2) +{ + int i; + for (i = 0; i < LEN(digraphs); i++) + if (digraphs[i][0][0] == c1 && digraphs[i][0][1] == c2) + return digraphs[i][1]; + return NULL; +} + +char *conf_definition(char *ft) +{ + int i; + for (i = 0; i < LEN(filetypes); i++) + if (!strcmp(ft, filetypes[i].ft) && filetypes[i].def) + return filetypes[i].def; + return "^%s\\>"; +} + +char *conf_section(char *ft) +{ + int i; + for (i = 0; i < LEN(filetypes); i++) + if (!strcmp(ft, filetypes[i].ft) && filetypes[i].sec) + return filetypes[i].sec; + return "^\\{"; +} + +char *conf_ecmd(void) +{ + return ECMD; +} + +/* character placeholders */ +static struct mapch { + char s[6]; /* the source character */ + char d[16]; /* the placeholder */ + int wid; /* the width of the placeholder */ +} mapch[64]; + +static int mapch_cnt; +static char mapch_map[256]; + +static void mapch_init(void) +{ + static int called; + if (!called) { + called = 1; + mapch_def("‌", "-", 1); + mapch_def("‍", "-", 1); + mapch_def("ً", "ـً", 1); + mapch_def("ٌ", "ـٌ", 1); + mapch_def("ٍ", "ـٍ", 1), + mapch_def("َ", "ـَ", 1); + mapch_def("ُ", "ـُ", 1); + mapch_def("ِ", "ـِ", 1); + mapch_def("ّ", "ـّ", 1); + mapch_def("ْ", "ـْ", 1); + mapch_def("ٓ", "ـٓ", 1); + mapch_def("ٔ", "ـٔ", 1); + mapch_def("ٕ", "ـٕ", 1); + mapch_def("ٰ", "ـٰ", 1); + } +} + +void mapch_def(char *s, char *d, int wid) +{ + int i; + mapch_init(); + for (i = 0; i < mapch_cnt; i++) + if (!mapch[i].s[0] || uc_code(s) == uc_code(mapch[i].s)) + break; + if (i < LEN(mapch)) { + struct mapch *mc = &mapch[i]; + int c = (unsigned char) s[0]; + snprintf(mc->s, sizeof(mc->s), "%s", d[0] ? s : ""); + snprintf(mc->d, sizeof(mc->d), "%s", d); + mc->wid = wid >= 0 ? wid : ren_wid(d); + mapch_map[c] = 1; + mapch_cnt = MAX(mapch_cnt, i + 1); + } +} + +char *mapch_get(char *s, int *wid) +{ + int c = (unsigned char) s[0]; + int i; + if (!mapch_cnt) + mapch_init(); + if (mapch_map[c]) { + for (i = 0; i < mapch_cnt; i++) { + struct mapch *mc = &mapch[i]; + if (s[0] == mc->s[0] && uc_code(s) == uc_code(mc->s)) { + if (wid) + *wid = mc->wid; + return mc->d; + } + } + } + if (wid) + *wid = 1; + if (uc_isbell(s)) + return "�"; + return NULL; +} diff --git a/Apps/Neatvi/main/Source/conf.h b/Apps/Neatvi/main/Source/conf.h new file mode 100644 index 0000000..85dc24c --- /dev/null +++ b/Apps/Neatvi/main/Source/conf.h @@ -0,0 +1,210 @@ +/* neatvi configuration file */ + +/* access mode of new files */ +#define MKFILE_MODE 0600 + +/* map file names to file types */ +static struct filetype { + char *ft; /* file type */ + char *pat; /* file name pattern */ + char *def; /* pattern for global definitions (for gd command) */ + char *sec; /* section start pattern (for [[ and ]] commands) */ +} filetypes[] = { + {"c", "\\.[hc]$", "^([a-zA-Z_].*)?\\<%s\\>.*([^;]|[^)];)$"}, + {"roff", "\\.(ms|me|mom|tr|roff|tmac|[1-9])$", "^\\.(de|nr|ds) +%s\\>"}, + {"tex", "\\.tex$"}, + {"msg", "letter$|mbox$|mail$"}, + {"mk", "Makefile$|makefile$|\\.mk$", "^%s:"}, + {"sh", "\\.sh$", "^(function +)?%s(\\(\\))? *\\{", "^(function +)?[a-zA-Z_0-9]+(\\(\\))? *\\{$"}, + {"go", "\\.go$", "^(func|var|const|type)( +\\(.*\\))? +%s\\>", "^(func|type)\\>.*\\{$"}, + {"py", "\\.py$", "^(def|class) +\\<%s\\>", "^(def|class) "}, + {"bib", "bib$"}, + {"nm", "\\.nm$"}, + {"diff", "\\.(patch|diff)$"}, + {"ls", "ls$"}, + {"ex", "\\.neatvi$"}, + {"txt", "$"}, /* matches everything; must be the last pattern */ +}; + +#define SM(c) (128 + c) +#define SX(c) (256 + c) + +/* syntax highlighting patterns */ +static struct highlight { + char *ft; /* the filetype of this pattern */ + int att[16]; /* attributes of the matched groups */ + char *pat; /* regular expression */ + int end; /* the group ending this pattern */ +} highlights[] = { + /* status bar */ + {"---", {'_', 0, 'N', 'I', 'L', 'W', 'F', 'K', 'T', 'C'}, + "^((N)|(I))([0-9]+) +([^ ]) +([^ ]+) +([^ ]+) +([0-9]+) +C([0-9]+).*$"}, + {"---", {'_', 'W', 'L', 'W', 'F'}, "^([WR])([0-9]+) ([^ ])([^ ]*).*$"}, + {"---", {'!'}, "^E .*$"}, + {"---", {'U', '1', 'D', 0, 'B', '2', '2'}, + "^\\[([-0-9])\\] +(/?([^ /:]+/+)*)([^ /:]+)(:[0-9]+:)?(.*)$"}, + {"---", {'U'}, "^/?\\[-\\].*$"}, + {"---", {'Q', 'N', 'F'}, "^LEAP ([A-Z]+) +[^ ]+ +([^ ]+)[^\n]*\n?"}, + {"---", {'_'}, "^.*$\n?"}, + /* ex mode */ + {"-ex", {':'}, "^[:/?!].*$"}, + {"-ex", {'X'}, "^.*$\n?"}, + + /* C */ + {"c", {'t'}, "\\<(signed|unsigned|char|short|int|long|float|double|void|struct|enum|union|typedef)\\>"}, + {"c", {'k'}, "\\<(static|extern|register)\\>"}, + {"c", {'r'}, "\\<(return|for|while|if|else|do|sizeof|goto|switch|case|default|break|continue)\\>"}, + {"c", {'c'}, "//.*$"}, + {"c", {'c'}, "/\\*([^*]|\\*+[^*/])*\\*+/"}, + {"c", {'m', 'p'}, "^#([ \t]*include).*"}, + {"c", {'m', 'p'}, "^#([ \t]*[a-zA-Z0-9_]+)"}, + {"c", {0, 'f'}, "([a-zA-Z][a-zA-Z0-9_]+)\\(", 1}, + {"c", {'s'}, "\"([^\"\\]|\\\\.)*\""}, + {"c", {'h'}, "'([^\\]|\\\\.)'"}, + {"c", {'0'}, "[-+]?\\<(0[xX][0-9a-fA-F]+|[0-9]+)\\>"}, + {"c", {'c'}, "^\t*(/\\*.*| \\*.*| \\*\\//)$"}, + {"c", {'i'}, "[a-zA-Z][a-zA-Z0-9_]*"}, + + /* troff */ + {"roff", {0, 'k', 'd'}, "^[.'][ \t]*(SH)(.*)$"}, + {"roff", {0, 'k', 'd'}, "^[.'][ \t]*de (.*)$"}, + {"roff", {0, 'b'}, "^[.'][ \t]*([^ \t\\]*)", 1}, + {"roff", {'s'}, "\"([^\"]|\"\")*\"?"}, + {"roff", {'c'}, "\\\\\".*$"}, + {"roff", {'b'}, "\\\\{1,2}[*$fgkmns]([^[(]|\\(..|\\[[^]]*\\])"}, + {"roff", {'v'}, "\\\\([^[(*$fgkmns]|\\(..|\\[[^]]*\\])"}, + {"roff", {'s'}, "\\$[^$]+\\$"}, + {"roff", {'0'}, "[-+]?\\<([0-9]+(\\.[0-9]+)?)\\>"}, + + /* tex */ + {"tex", {0, 'k', 0, 0, 'm', 0, 'f'}, + "\\\\([^[{ \t]+)((\\[([^][]+)\\])|(\\{([^}]*)\\}))*"}, + {"tex", {'s'}, "\\$[^$]+\\$"}, + {"tex", {'c'}, "%.*$"}, + + /* mail */ + {"msg", {SM('h')}, "^From .*20..$"}, + {"msg", {SM('h'), SM('s')}, "^Subject: (.*)$"}, + {"msg", {SM('h'), SM('f')}, "^From: (.*)$"}, + {"msg", {SM('h'), SM('t')}, "^To: (.*)$"}, + {"msg", {SM('h'), SM('c')}, "^Cc: (.*)$"}, + {"msg", {SM('h')}, "^[A-Z][-A-Za-z]+: .+$"}, + {"msg", {SM('r')}, "^> .*$"}, + + /* makefile */ + {"mk", {0, 'd'}, "^([A-Za-z_][A-Za-z0-9_]*)[ \t]*="}, + {"mk", {'v'}, "\\$\\([a-zA-Z0-9_]+\\)"}, + {"mk", {'c'}, "#.*$"}, + {"mk", {0, 'f'}, "([A-Za-z_%.]+):"}, + + /* shell script */ + {"sh", {0, 'k', 'd'}, "^(function +)?([a-zA-Z_0-9]+) *(\\(\\))? *\\{"}, + {"sh", {'r'}, "\\<(break|case|continue|do|done|elif|else|esac|fi|for|if|in|then|until|while|return)\\>"}, + {"sh", {'s'}, "\"([^\"\\]|\\\\.)*\""}, + {"sh", {'s'}, "'[^']*'"}, + {"sh", {'s'}, "`([^`\\]|\\\\.)*`"}, + {"sh", {'v'}, "\\$(\\{[^}]+\\}|[a-zA-Z_0-9]+|[!#$?*@-])"}, + {"sh", {'v'}, "\\$\\([^()]+\\)"}, + {"sh", {'f'}, "^\\. .*$"}, + {"sh", {'c'}, "#.*$"}, + + /* go */ + {"go", {0, 'k', 'i', 'd'}, "^\\<(func) (\\([^()]+\\) )?([a-zA-Z0-9_]+)\\>"}, + {"go", {'k'}, "\\<(func|type|var|const|package)\\>"}, + {"go", {'p', 'm'}, "^import[ \t]+([^ ]+)"}, + {"go", {'k'}, "\\<(import|interface|struct)\\>"}, + {"go", {'r'}, "\\<(break|case|chan|continue|default|defer|else|fallthrough|for|go|goto|if|map|range|return|select|switch)\\>"}, + {"go", {0, 'b'}, "\\<(append|copy|delete|len|cap|make|new|complex|real|imag|close|panic|recover|print|println|int|int8|int16|int32|int64|uint|uint8|uint16|uint32|uint64|uintptr|float32|float64|complex128|complex64|bool|byte|rune|string|error)\\>\\("}, + {"go", {'t'}, "\\<(true|false|iota|nil|int8|int16|int32|int64|int|uint8|uint16|uint32|uint64|uint|uintptr|float32|float64|complex128|complex64|bool|byte|rune|string|error)\\>"}, + {"go", {'c'}, "//.*$"}, + {"go", {'c'}, "/\\*([^*]|\\*+[^*/])*\\*+/"}, + {"go", {0, 'f'}, "([a-zA-Z][a-zA-Z0-9_]*)\\(", 1}, + {"go", {'i'}, "[a-zA-Z][a-zA-Z0-9_]*"}, + {"go", {'s'}, "\"([^\"\\]|\\\\.)*\""}, + {"go", {'h'}, "'([^']|\\\\')*'"}, + {"go", {'s'}, "`([^`]|\\\\`)*`"}, + {"go", {'0'}, "[-+]?\\<(0[xX][0-9a-fA-F]+|[0-9.]+)\\>"}, + {"go", {'c'}, "^\t*(/\\*.*| \\*.*| \\*\\//)$"}, + + /* refer */ + {"bib", {0, SM('h'), SM('l')}, "^(%L) +(.*)$", 1}, + {"bib", {0, SM('h'), SM('f')}, "^(%A) (.*)$", 1}, + {"bib", {0, SM('h'), SM('s')}, "^(%T) (.*)$", 1}, + {"bib", {0, SM('h'), SM('t')}, "^(%[JB]) (.*)$", 1}, + {"bib", {0, SM('h')}, "^(%[A-Z]) (.*)$", 1}, + {"bib", {'c'}, "^#.*$", 1}, + + /* python */ + {"py", {'c'}, "#.*$"}, + {"py", {'k'}, "\\<(class|def)\\>"}, + {"py", {'k'}, "\\<(and|or|not|is|in)\\>"}, + {"py", {0, 0, 'p', 'i', 'p', 'm'}, "^((from)[ \t]+([^ ]+)[ \t]+)?(import)[ \t]+([^ ]+)"}, + {"py", {'k'}, "\\<(import|from|global|lambda|del)\\>"}, + {"py", {'r'}, "\\<(for|while|if|elif|else|pass|return|break|continue)\\>"}, + {"py", {'r'}, "\\<(try|except|as|raise|finally|with)\\>"}, + {"py", {0, 'f'}, "([a-zA-Z][a-zA-Z0-9_]+)\\(", 1}, + {"py", {'s'}, "[\"']([^\"'\\]|\\\\.)*[\"']"}, + {"py", {'i'}, "[a-zA-Z][a-zA-Z0-9_]*"}, + + /* neatmail listing */ + {"nm", {0, SM('S'), SM('0'), SM('M'), SM('1'), SM('R'), SM('U')}, + "^([ROU][^ABCDHML0-9]?)(0*)([0-9]+)(@[^ \t]*)? *\t\\[([^\t]*)\\]\t *\\[([^\t]*)\\].*"}, + {"nm", {SM('N')}, "^[N].*$"}, + {"nm", {SM('A')}, "^[A-Z][HA].*$"}, + {"nm", {SM('B')}, "^[A-Z][MB].*$"}, + {"nm", {SM('C')}, "^[A-Z][C].*$"}, + {"nm", {SM('D')}, "^[A-Z][LD].*$"}, + {"nm", {SM('F')}, "^[F].*$"}, + {"nm", {SM('I')}, "^\t.*$"}, + {"nm", {SM('X')}, "^:.*$"}, + + /* diff */ + {"diff", {SX('-')}, "^-.*$"}, + {"diff", {SX('+')}, "^\\+.*$"}, + {"diff", {SX('@')}, "^@.*$"}, + {"diff", {SX('D')}, "^diff .*$"}, + + /* directory listing */ + {"ls", {0, SX('d'), 0, SX('b'), SX('n'), SX('s'), SX('l')}, + "^(/?([^#/: \t]+/)*)([^/: \t]+)\\>(:[0-9]+:)?([^\t]+\t)?(.*)$"}, + {"ls", {SX('c')}, "^#.*$"}, + + /* .neatvi */ + {"ex", {'c'}, "\".*$"}, + {"ex", {'b', 'd'}, "^rs[ \t]+([^ ]+)"}, + {"ex", {0, 'b', 'f'}, "^[ \t]*(@|rs|ra|rx|rk)[ \t]+([^ ]+)"}, + {"ex", {0, '0', 0, 'b'}, "^[ \t]*(([-0-9:%,;.$+]|'.|`.|/[^/]*/|\\?[^?]*\\?)*)[ \t]*([a-z!]+)"}, + {"ex", {'r'}, "^\\.$"}, +}; + +/* right-to-left characters (used only in dircontexts[] and dirmarks[]) */ +#define CR2L "ءآأؤإئابةتثجحخدذرزسشصضطظعغـفقكلمنهوىييپچژکگیۀ‌‍؛،»«؟ًٌٍَُِّْٔ" +/* neutral characters (used only in dircontexts[] and dirmarks[]) */ +#define CNEUT "-!\"#$%&'()*+,./:;<=>?@^_`{|}~ " + +/* direction context; specifies the base direction of lines */ +static struct dircontext { + int dir; + char *pat; +} dircontexts[] = { + {-1, "^[" CR2L "]"}, + {+1, "^[a-zA-Z_0-9]"}, +}; + +/* direction marks; the direction of contiguous characters in a line */ +static struct dirmark { + int ctx; /* the direction context for this mark; 0 means any */ + int dir; /* the direction of the matched text */ + int grp; /* the nested subgroup; 0 means no groups */ + char *pat; +} dirmarks[] = { + {+0, +1, 1, "\\\\\\*\\[([^]]+)\\]"}, + {+1, -1, 0, "[" CR2L "][" CNEUT CR2L "]*[" CR2L "]"}, + {-1, +1, 0, "[a-zA-Z0-9_][^" CR2L "\\\\`$']*[a-zA-Z0-9_]"}, + {+0, +1, 0, "\\$([^$]+)\\$"}, + {+0, +1, 1, "\\\\[a-zA-Z0-9_]+\\{([^}]+)\\}"}, + {-1, +1, 0, "\\\\[^ \t" CR2L "]+"}, +}; + +/* external commands */ +#define ECMD "neatvi.sh" diff --git a/Apps/Neatvi/main/Source/dir.c b/Apps/Neatvi/main/Source/dir.c new file mode 100644 index 0000000..56c8e9f --- /dev/null +++ b/Apps/Neatvi/main/Source/dir.c @@ -0,0 +1,126 @@ +#include +#include +#include +#include "vi.h" + +static struct rset *dir_rslr; /* pattern of marks for left-to-right strings */ +static struct rset *dir_rsrl; /* pattern of marks for right-to-left strings */ +static struct rset *dir_rsctx; /* direction context patterns */ + +static int dir_match(char **chrs, int beg, int end, int ctx, int *rec, + int *r_beg, int *r_end, int *c_beg, int *c_end, int *dir) +{ + int subs[16 * 2]; + struct rset *rs = ctx < 0 ? dir_rsrl : dir_rslr; + struct sbuf str = {0}; + int grp; + int flg = (beg ? RE_NOTBOL : 0) | (chrs[end][0] ? RE_NOTEOL : 0); + int found = -1; + sbuf_mem(&str, chrs[beg], chrs[end] - chrs[beg]); + if (rs) + found = rset_find(rs, sbuf_buf(&str), LEN(subs) / 2, subs, flg); + if (found >= 0 && r_beg && r_end && c_beg && c_end) { + char *s = sbuf_buf(&str); + conf_dirmark(found, NULL, NULL, dir, &grp); + *r_beg = beg + uc_off(s, subs[0]); + *r_end = beg + uc_off(s, subs[1]); + *c_beg = subs[grp * 2 + 0] >= 0 ? + beg + uc_off(s, subs[grp * 2 + 0]) : *r_beg; + *c_end = subs[grp * 2 + 1] >= 0 ? + beg + uc_off(s, subs[grp * 2 + 1]) : *r_end; + *rec = grp > 0; + } + sbuf_free(&str); + return found < 0; +} + +static void dir_reverse(int *ord, int beg, int end) +{ + end--; + while (beg < end) { + int tmp = ord[beg]; + ord[beg] = ord[end]; + ord[end] = tmp; + beg++; + end--; + } +} + +/* reorder the characters based on direction marks and characters */ +static void dir_fix(char **chrs, int *ord, int dir, int beg, int end) +{ + int r_beg, r_end, c_beg, c_end; + int c_dir, c_rec; + while (beg < end && !dir_match(chrs, beg, end, dir, &c_rec, + &r_beg, &r_end, &c_beg, &c_end, &c_dir)) { + if (dir < 0) + dir_reverse(ord, r_beg, r_end); + if (c_dir < 0) + dir_reverse(ord, c_beg, c_end); + if (c_beg == r_beg) + c_beg++; + if (c_rec) + dir_fix(chrs, ord, c_dir, c_beg, c_end); + beg = r_end; + } +} + +/* return the direction context of the given line */ +int dir_context(char *s) +{ + int found = -1; + int dir; + if (xtd > +1) + return +1; + if (xtd < -1) + return -1; + if (xtd == 0 && ~((unsigned char) *s) & 0x80) + return +1; + if (dir_rsctx) + found = rset_find(dir_rsctx, s ? s : "", 0, NULL, 0); + if (!conf_dircontext(found, NULL, &dir)) + return dir; + return xtd < 0 ? -1 : +1; +} + +/* reorder the characters in s */ +void dir_reorder(char *s, int *ord) +{ + int n; + char **chrs = uc_chop(s, &n); + int dir = dir_context(s); + if (n && chrs[n - 1][0] == '\n') { + ord[n - 1] = n - 1; + n--; + } + dir_fix(chrs, ord, dir, 0, n); + free(chrs); +} + +void dir_init(void) +{ + char *relr[128]; + char *rerl[128]; + char *ctx[128]; + int curctx, i; + char *pat; + for (i = 0; !conf_dirmark(i, &pat, &curctx, NULL, NULL); i++) { + relr[i] = curctx >= 0 ? pat : NULL; + rerl[i] = curctx <= 0 ? pat : NULL; + } + dir_rslr = rset_make(i, relr, 0); + dir_rsrl = rset_make(i, rerl, 0); + for (i = 0; !conf_dircontext(i, &pat, NULL); i++) + ctx[i] = pat; + dir_rsctx = rset_make(i, ctx, 0); +} + +void dir_done(void) +{ + if (dir_rslr) + rset_free(dir_rslr); + if (dir_rsrl) + rset_free(dir_rsrl); + if (dir_rsctx) + rset_free(dir_rsctx); +} diff --git a/Apps/Neatvi/main/Source/ex.c b/Apps/Neatvi/main/Source/ex.c new file mode 100644 index 0000000..5e1ebc8 --- /dev/null +++ b/Apps/Neatvi/main/Source/ex.c @@ -0,0 +1,1699 @@ +#include +#include +#include +#include +#include +#include +#include +#include "vi.h" + +#define REG(s) ((s)[0] != '\\' ? (unsigned char) (s)[0] : 0x80 | (unsigned char) (s)[1]) + +int xrow, xoff, xtop; /* current row, column, and top row */ +int xleft; /* the first visible column */ +volatile sig_atomic_t xquit; /* exit if set */ +int xvis; /* visual mode */ +int xai = 1; /* autoindent option */ +int xic = 1; /* ignorecase option */ +int xaw; /* autowrite option */ +int xwa; /* writeany option */ +int xhl = 1; /* syntax highlight option */ +int xhll; /* highlight current line */ +int xtd = 0; /* current text direction */ +int xshape = 1; /* perform letter shaping */ +int xorder = 1; /* change the order of characters */ +int xkmap = 0; /* the current keymap */ +int xkmap_alt = 1; /* the alternate keymap */ +int xlim = 256; /* do not process lines longer than this */ +int xru = 1; /* show line number */ +int xhist = 0; /* number of history lines */ +int xvte = 0; /* workaround for vte-based terminals */ +int xts = 8; /* tabstop */ +static char xkwd[EXLEN]; /* the last searched keyword */ +static char xrep[EXLEN]; /* the last replacement */ +static int xkwddir; /* the last search direction */ +static int xgdep; /* global command recursion depth */ +static char **next; /* argument list */ +static int next_pos; /* position in argument list */ +static int xsource; /* executing :so */ + +static struct buf { + char ft[32]; /* file type */ + char *path; /* file path */ + struct lbuf *lb; + int row, off, top, left; + short id; /* buffer number */ + short td; /* text direction */ + long mtime; /* modification time */ +} bufs[16]; + +static int bufs_cnt = 0; /* number of allocated buffers */ + +static void bufs_free(int idx) +{ + if (bufs[idx].lb) { + free(bufs[idx].path); + lbuf_free(bufs[idx].lb); + memset(&bufs[idx], 0, sizeof(bufs[idx])); + } +} + +static int bufs_find(char *path) +{ + int i; + path = path[0] == '/' && path[1] == '\0' ? "" : path; + for (i = 0; i < LEN(bufs); i++) + if (bufs[i].path && !strcmp(bufs[i].path, path)) + return i; + return -1; +} + +static int bufs_findroom(void) +{ + int i; + for (i = 0; i < LEN(bufs) - 1; i++) + if (!bufs[i].lb) + break; + return i; +} + +static void bufs_init(int idx, char *path) +{ + bufs_free(idx); + bufs[idx].id = ++bufs_cnt; + bufs[idx].path = uc_dup(path); + bufs[idx].lb = lbuf_make(); + bufs[idx].row = 0; + bufs[idx].off = 0; + bufs[idx].top = 0; + bufs[idx].left = 0; + bufs[idx].td = +1; + bufs[idx].mtime = -1; + strcpy(bufs[idx].ft, syn_filetype(path)); +} + +static int bufs_open(char *path) +{ + int idx = bufs_findroom(); + path = path[0] == '/' && path[1] == '\0' ? "" : path; + bufs_init(idx, path); + return idx; +} + +static void bufs_store(void) +{ + bufs[0].row = xrow; + bufs[0].off = xoff; + bufs[0].top = xtop; + bufs[0].left = xleft; + bufs[0].td = xtd; +} + +static void bufs_load(void) +{ + xrow = bufs[0].row; + xoff = bufs[0].off; + xtop = bufs[0].top; + xleft = bufs[0].left; + xtd = bufs[0].td; + reg_put('%', bufs[0].path ? bufs[0].path : "", 0); +} + +static void bufs_shift(void) +{ + bufs_free(0); + memmove(&bufs[0], &bufs[1], sizeof(bufs) - sizeof(bufs[0])); + memset(&bufs[LEN(bufs) - 1], 0, sizeof(bufs[0])); + bufs_load(); +} + +static void bufs_switch(int idx) +{ + struct buf tmp; + bufs_store(); + memcpy(&tmp, &bufs[idx], sizeof(tmp)); + memmove(&bufs[1], &bufs[0], sizeof(tmp) * idx); + memcpy(&bufs[0], &tmp, sizeof(tmp)); + bufs_load(); +} + +static void bufs_number(void) +{ + int n = 0; + int i; + for (i = 0; i < LEN(bufs); i++) + if (bufs[i].lb != NULL) + bufs[i].id = ++n; + bufs_cnt = n; +} + +static long mtime(char *path) +{ + struct stat st; + if (!stat(path, &st)) + return st.st_mtime; + return -1; +} + +char *ex_path(void) +{ + return bufs[0].path; +} + +int ex_id(void) +{ + return bufs[0].id; +} + +struct lbuf *ex_lbuf(void) +{ + return bufs[0].lb; +} + +char *ex_filetype(void) +{ + return bufs[0].ft; +} + +/* replace % and # with current and alternate path names; returns a static buffer */ +static char *ex_pathexpand(char *src, int spaceallowed) +{ + static char sb_buf[EXLEN]; + struct sbuf sb = {sb_buf, sizeof(sb_buf)}; + while (*src && *src != '\n' && (spaceallowed || (*src != ' ' && *src != '\t'))) { + if (*src == '%' || *src == '#') { + int idx = *src == '#'; + if (!bufs[idx].path) { + ex_show("pathname \"%%\" or \"#\" is not set"); + return NULL; + } + sbuf_str(&sb, bufs[idx].path[0] ? bufs[idx].path : "/"); + src++; + } else if (sbuf_len(&sb) == 0 && *src == '=') { + char *cur = bufs[0].path; + char *dir = cur != NULL ? strrchr(cur, '/') : NULL; + if (cur != NULL && dir != NULL) { + sbuf_mem(&sb, cur, dir - cur); + sbuf_chr(&sb, '/'); + } + src++; + } else { + if (*src == '\\' && src[1]) + src++; + sbuf_chr(&sb, *src++); + } + } + return sbuf_buf(&sb); +} + +/* read :e +cmd arguments; returns a static buffer */ +static char *ex_plus(char **src0) +{ + static char sb_buf[EXLEN]; + struct sbuf sb = {sb_buf, sizeof(sb_buf)}; + char *src = *src0; + while (*src == ' ') + src++; + if (*src != '+') + return src; + while (*src && *src != ' ') { + if (src[0] == '\\' && src[1]) + src++; + sbuf_chr(&sb, *src++); + } + while (*src == ' ' || *src == '\t') + src++; + *src0 = src; + return sbuf_buf(&sb); +} + +/* read register name */ +static char *ex_reg(char *src, int *reg) +{ + while (*src == ' ') + src++; + if (src[0] == '\\' && src[1] == '"') + src++; + *reg = REG(src); + while (*src && *src != ' ' && *src != '\t') + src++; + while (*src == ' ' || *src == '\t') + src++; + return src; +} + +/* the previous search keyword */ +int ex_kwd(char **kwd, int *dir) +{ + if (kwd) + *kwd = xkwd; + if (dir) + *dir = xkwddir; + return xkwddir == 0; +} + +/* set the previous search keyword */ +void ex_kwdset(char *kwd, int dir) +{ + if (kwd) + snprintf(xkwd, sizeof(xkwd), "%s", kwd); + xkwddir = dir; +} + +static int ex_search(char **pat) +{ + char *pat_re; + struct rstr *re; + int dir, row; + int delim = **pat; + char *kw = re_read(pat); + if (kw != NULL && *kw) + ex_kwdset(kw, delim == '/' ? 1 : -1); + free(kw); + if (ex_kwd(&pat_re, &dir)) + return -1; + re = rstr_make(pat_re, xic ? RE_ICASE : 0); + if (!re) + return -1; + row = xrow + dir; + while (row >= 0 && row < lbuf_len(xb)) { + if (rstr_find(re, lbuf_get(xb, row), 0, NULL, 0) >= 0) + break; + row += dir; + } + rstr_free(re); + return row >= 0 && row < lbuf_len(xb) ? row : -1; +} + +static int ex_lineno(char **num) +{ + int n = xrow; + switch ((unsigned char) **num) { + case '.': + ++*num; + break; + case '$': + n = lbuf_len(xb) - 1; + ++*num; + break; + case '\'': + if (lbuf_jump(xb, (unsigned char) *++(*num), &n, NULL)) + return -1; + ++*num; + break; + case '/': + case '?': + n = ex_search(num); + break; + default: + if (isdigit((unsigned char) **num)) { + n = atoi(*num) - 1; + while (isdigit((unsigned char) **num)) + ++*num; + } + } + while (**num == '-' || **num == '+') { + int neg = *(*num)++ == '-'; + int val = isdigit((unsigned char) **num) ? atoi(*num) : 1; + n += neg ? -val : val; + while (isdigit((unsigned char) **num)) + (*num)++; + } + return n; +} + +/* parse ex command addresses */ +static int ex_region(char *loc, int *beg, int *end) +{ + int naddr = 0; + if (!strcmp("%", loc)) { + *beg = 0; + *end = MAX(0, lbuf_len(xb)); + return 0; + } + if (!*loc) { + *beg = xrow; + *end = xrow == lbuf_len(xb) ? xrow : xrow + 1; + return 0; + } + while (*loc) { + int end0 = *end; + *end = ex_lineno(&loc) + 1; + *beg = naddr++ ? end0 - 1 : *end - 1; + if (!naddr++) + *beg = *end - 1; + while (*loc && *loc != ';' && *loc != ',') + loc++; + if (!*loc) + break; + if (*loc == ';') + xrow = *end - 1; + loc++; + } + if (*beg < 0 && *end == 0) + *beg = 0; + if (*beg < 0 || *beg >= lbuf_len(xb)) + return 1; + if (*end < *beg || *end > lbuf_len(xb)) + return 1; + return 0; +} + +static char *lbuf_write(struct lbuf *lb, int beg, int end, char *path, int force, long ts) +{ + int fd; + if (end < 0) + end = lbuf_len(lb); + if (!force && ts > 0 && mtime(path) > ts) { + return "write failed: file changed"; + } else if (!xwa && !force && ts <= 0 && mtime(path) >= 0) { + return "write failed: file exists"; + } else if ((fd = open(path, O_WRONLY | O_CREAT, conf_mode())) < 0) { + return "write failed: cannot create file"; + } else if (lbuf_wr(lb, fd, beg, end) != 0 || close(fd) != 0) { + close(fd); + return "write failed"; + } + return NULL; +} + +static char *bufs_save(int idx, int force) +{ + struct buf *b = &bufs[idx]; + char *err = lbuf_write(b->lb, 0, -1, b->path, force, b->mtime); + if (err) + return err; + lbuf_saved(b->lb, 0); + b->mtime = mtime(b->path); + lsp_modified(b->path, b->ft); + return NULL; +} + +static int bufs_modified(int idx, char *msg) +{ + struct buf *b = &bufs[idx]; + if (!b->lb || !lbuf_modified(b->lb)) + return 0; + if (xaw && b->path[0]) + return bufs_save(idx, 0) != NULL; + if (msg) + ex_show(msg); + return 1; +} + +static int ec_buffer(char *loc, char *cmd, char *arg, char *txt) +{ + char *aliases = "%#^"; + char ln[128]; + int i; + if (!arg[0]) { + /* print buffer list */ + for (i = 0; i < LEN(bufs) && bufs[i].lb; i++) { + char c = i < strlen(aliases) ? aliases[i] : ' '; + char m = lbuf_modified(bufs[i].lb) ? '*' : ' '; + snprintf(ln, LEN(ln), "%2i %c %s %c", + (int) bufs[i].id, c, bufs[i].path, m); + ex_print(ln); + } + } else if (arg[0] == '!') { + /* delete buffer */ + bufs_shift(); + if (bufs[0].lb == NULL) + bufs_init(0, ""); + } else if (arg[0] == '~') { + /* reassign buffer ids */ + bufs_number(); + } else { + int id = arg[0] ? atoi(arg) : 0; + int idx = -1; + /* switch to the given buffer */ + if (isdigit((unsigned char) arg[0])) { /* buffer id given */ + for (idx = 0; idx < LEN(bufs); idx++) + if (bufs[idx].lb && id == bufs[idx].id) + break; + } else if (arg[0] == '-') { /* previous buffer */ + for (i = 0; i < LEN(bufs); i++) + if (bufs[i].lb && bufs[i].id < bufs[0].id) + if (idx < 0 || bufs[i].id > bufs[idx].id) + idx = i; + } else if (arg[0] == '+') { /* next buffer */ + for (i = 0; i < LEN(bufs); i++) + if (bufs[i].lb && bufs[i].id > bufs[0].id) + if (idx < 0 || bufs[i].id < bufs[idx].id) + idx = i; + } else { /* buffer alias given */ + char *r = strchr(aliases, (unsigned char) arg[0]); + idx = r ? r - aliases : -1; + } + if (idx >= 0 && idx < LEN(bufs) && bufs[idx].lb) { + if (!strchr(cmd, '!') && bufs_modified(0, "b: buffer modified")) + return 1; + bufs_switch(idx); + } else { + ex_show("b: no such buffer"); + return 1; + } + } + return 0; +} + +int ex_list(char **ls, int size) +{ + int i; + for (i = 0; i < LEN(bufs) && bufs[i].lb && i < size; i++) + ls[i] = bufs[i].path[0] ? bufs[i].path : "/"; + return i; +} + +static int ec_edit(char *loc, char *cmd, char *arg, char *txt) +{ + char *path, *pls; + int fd; + if (!strchr(cmd, '!') && bufs_modified(0, "e: buffer modified")) + return 1; + pls = ex_plus(&arg); + if (!pls || !(path = ex_pathexpand(arg, 0))) + return 1; + /* ew: switch buffer without changing # */ + if (path[0] && cmd[0] == 'e' && cmd[1] == 'w' && bufs_find(path) > 1) + bufs_switch(1); + /* check if the buffer is already available */ + if (path[0] && bufs_find(path) >= 0) { + bufs_switch(bufs_find(path)); + if (pls[0] == '+') + return ex_command(pls + 1); + return 0; + } + if (path[0] || !bufs[0].path) + bufs_switch(bufs_open(path)); + fd = open(ex_path(), O_RDONLY); + if (fd >= 0) { + int rd = lbuf_rd(xb, fd, 0, lbuf_len(xb)); + close(fd); + if (rd) + ex_show("e: read failed"); + else + ex_show("R%04d <%s", lbuf_len(xb), ex_path()); + } + lbuf_saved(xb, path[0] != '\0'); + bufs[0].mtime = mtime(ex_path()); + xrow = MAX(0, MIN(xrow, lbuf_len(xb) - 1)); + xoff = 0; + xtop = MAX(0, MIN(xtop, lbuf_len(xb) - 1)); + if (pls[0] == '+') + return ex_command(pls + 1); + return 0; +} + +static int ex_next(char *cmd, int dis) +{ + char sb_buf[EXLEN]; + struct sbuf sb = {sb_buf, sizeof(sb_buf)}; + int old = next_pos; + int idx = next != NULL && next[old] != NULL ? next_pos + dis : -1; + char *path = idx >= 0 && next[idx] != NULL ? next[idx] : NULL; + char *r = path != NULL ? path : ""; + if (dis && path == NULL) { + ex_show("n: no more files"); + return 1; + } + while (*r) { + if (*r == ' ' || *r == '%' || *r == '#' || *r == '=') + sbuf_chr(&sb, '\\'); + sbuf_chr(&sb, *r++); + } + if (!sbuf_buf(&sb) || ec_edit("", cmd, sbuf_buf(&sb), NULL)) + return 1; + next_pos = idx; + return 0; +} + +static int ec_next(char *loc, char *cmd, char *arg, char *txt) +{ + return ex_next(cmd, +1); +} + +static int ec_prev(char *loc, char *cmd, char *arg, char *txt) +{ + return ex_next(cmd, -1); +} + +static int ec_read(char *loc, char *cmd, char *arg, char *txt) +{ + int beg, end, pos; + char *path; + char *obuf; + int n = lbuf_len(xb); + path = arg[0] ? ex_pathexpand(arg, 1) : ex_path(); + if (ex_region(loc, &beg, &end) || path == NULL) + return 1; + pos = lbuf_len(xb) ? end : 0; + if (path[0] == '!') { + if (!path[1]) + return 1; + obuf = cmd_pipe(path + 1, NULL, 1); + if (obuf) + lbuf_edit(xb, obuf, pos, pos); + free(obuf); + } else { + int fd = open(path, O_RDONLY); + if (fd < 0) { + ex_show("r: open failed for %s", path); + return 1; + } + if (lbuf_rd(xb, fd, pos, pos)) { + ex_show("r: read failed for %s", path); + close(fd); + return 1; + } + close(fd); + } + xrow = end + lbuf_len(xb) - n - 1; + ex_show("R%04d <%s", lbuf_len(xb) - n, path); + return 0; +} + +static int ec_write(char *loc, char *cmd, char *arg, char *txt) +{ + char *path; + char *ibuf; + int beg, end; + path = arg[0] ? ex_pathexpand(arg, 1) : ex_path(); + if (cmd[0] == 'x' && !lbuf_modified(xb)) + return 0; + if (ex_region(loc, &beg, &end) || path == NULL) + return 1; + if (!loc[0]) { + beg = 0; + end = lbuf_len(xb); + } + if (path[0] == '!') { + if (!path[1]) + return 1; + ibuf = lbuf_cp(xb, beg, end); + ex_print(NULL); + cmd_pipe(path + 1, ibuf, 0); + free(ibuf); + } else { + long ts = !strcmp(ex_path(), path) ? bufs[0].mtime : 0; + char *err = lbuf_write(xb, beg, end, path, !!strchr(cmd, '!'), ts); + if (err != NULL) { + ex_show(err); + return 1; + } + } + ex_show("W%04d >%s", end - beg, path); + if (!ex_path()[0] && path[0] && path[0] != '!') { + free(bufs[0].path); + bufs[0].path = uc_dup(path); + reg_put('%', path, 0); + } + if (!strcmp(ex_path(), path)) { + lbuf_saved(xb, 0); + bufs[0].mtime = mtime(path); + } + lsp_modified(path, bufs[0].ft); + return 0; +} + +static int ec_quit(char *loc, char *cmd, char *arg, char *txt) +{ + int i; + if (cmd[0] == 'w' || cmd[0] == 'x') + if (ec_write("", cmd, arg, NULL)) + return 1; + for (i = 0; i < LEN(bufs); i++) { + if (bufs[i].lb) { + if (!strchr(cmd, 'a') && !strchr(cmd, '!')) { + if (bufs_modified(i, "q: buffer modified")) { + bufs_switch(i); + return 0; + } + } + if (strchr(cmd, 'a')) { + char *err = bufs_save(i, !!strchr(cmd, '!')); + if (err) { + bufs_switch(i); + ex_show(err); + return 0; + } + } + } + } + xquit = 1; + return 0; +} + +static int ec_insert(char *loc, char *cmd, char *arg, char *txt) +{ + int beg, end; + int n; + if (ex_region(loc, &beg, &end) && (beg != 0 || end != 0)) + return 1; + if (cmd[0] == 'a') + if (beg + 1 <= lbuf_len(xb)) + beg++; + if (cmd[0] != 'c') + end = beg; + n = lbuf_len(xb); + lbuf_edit(xb, txt, beg, end); + xrow = MIN(lbuf_len(xb) - 1, end + lbuf_len(xb) - n - 1); + return 0; +} + +static int ec_print(char *loc, char *cmd, char *arg, char *txt) +{ + int beg, end; + int i; + if (!cmd[0] && !loc[0]) + if (xrow >= lbuf_len(xb)) + return 1; + if (ex_region(loc, &beg, &end)) + return 1; + for (i = beg; i < end; i++) + ex_print(lbuf_get(xb, i)); + xrow = MAX(beg, end - 1); + xoff = 0; + return 0; +} + +static int ec_null(char *loc, char *cmd, char *arg, char *txt) +{ + int beg, end; + if (!xvis && !xsource) { + xrow = xrow + 1 < lbuf_len(xb) ? xrow + 1 : xrow; + return ec_print(loc, cmd, arg, txt); + } + if (ex_region(loc, &beg, &end)) + return 1; + xrow = MAX(beg, end - 1); + xoff = 0; + return 0; +} + +static void ex_yank(int reg, int beg, int end) +{ + char *buf = lbuf_cp(xb, beg, end); + reg_put(reg, buf, 1); + free(buf); +} + +static int ec_rs(char *loc, char *cmd, char *arg, char *txt) +{ + reg_put(REG(arg), txt, 1); + return 0; +} + +static int ec_delete(char *loc, char *cmd, char *arg, char *txt) +{ + int beg, end; + if (ex_region(loc, &beg, &end)) + return 1; + ex_yank(REG(arg), beg, end); + lbuf_edit(xb, NULL, beg, end); + xrow = beg; + return 0; +} + +static int ec_yank(char *loc, char *cmd, char *arg, char *txt) +{ + int beg, end; + if (ex_region(loc, &beg, &end)) + return 1; + ex_yank(REG(arg), beg, end); + return 0; +} + +static int ec_put(char *loc, char *cmd, char *arg, char *txt) +{ + int beg, end; + int lnmode; + char *buf; + int n = lbuf_len(xb); + buf = reg_get(REG(arg), &lnmode); + if (!buf || ex_region(loc, &beg, &end)) + return 1; + lbuf_edit(xb, buf, end, end); + xrow = MIN(lbuf_len(xb) - 1, end + lbuf_len(xb) - n - 1); + return 0; +} + +static int ec_lnum(char *loc, char *cmd, char *arg, char *txt) +{ + char msg[32]; + int beg, end; + if (ex_region(loc, &beg, &end)) + return 1; + sprintf(msg, "%d\n", end); + ex_print(msg); + return 0; +} + +static int ec_undo(char *loc, char *cmd, char *arg, char *txt) +{ + return lbuf_undo(xb); +} + +static int ec_redo(char *loc, char *cmd, char *arg, char *txt) +{ + return lbuf_redo(xb); +} + +static int ec_mark(char *loc, char *cmd, char *arg, char *txt) +{ + int beg, end; + if (ex_region(loc, &beg, &end)) + return 1; + lbuf_mark(xb, (unsigned char) arg[0], end - 1, 0); + return 0; +} + +static void replace(struct sbuf *dst, char *rep, char *ln, int *offs) +{ + while (rep[0]) { + if (rep[0] == '\\' && rep[1]) { + if (rep[1] >= '0' && rep[1] <= '9') { + int grp = (rep[1] - '0') * 2; + int len = offs[grp + 1] - offs[grp]; + sbuf_mem(dst, ln + offs[grp], len); + } else { + sbuf_chr(dst, (unsigned char) rep[1]); + } + rep++; + } else { + sbuf_chr(dst, (unsigned char) rep[0]); + } + rep++; + } +} + +static int ec_substitute(char *loc, char *cmd, char *arg, char *txt) +{ + struct rstr *re; + int offs[32]; + int beg, end; + char *pat = NULL, *rep = NULL; + char *s = arg; + int i; + if (ex_region(loc, &beg, &end)) + return 1; + pat = re_read(&s); + if (pat && pat[0]) + ex_kwdset(pat, +1); + if (pat && *s) { + s--; + rep = re_read(&s); + } + if (pat || rep) + snprintf(xrep, sizeof(xrep), "%s", rep ? rep : ""); + free(pat); + free(rep); + if (ex_kwd(&pat, NULL)) + return 1; + re = rstr_make(pat, xic ? RE_ICASE : 0); + if (!re) + return 1; + for (i = beg; i < end; i++) { + char *ln = lbuf_get(xb, i); + struct sbuf sb = {0}; + while (rstr_find(re, ln, LEN(offs) / 2, offs, 0) >= 0) { + sbuf_mem(&sb, ln, offs[0]); + replace(&sb, xrep, ln, offs); + ln += offs[1]; + if (offs[1] <= 0) /* zero-length match */ + sbuf_chr(&sb, (unsigned char) *ln++); + if (!*ln || *ln == '\n' || !strchr(s, 'g')) + break; + } + if (sb.s) { + sbuf_str(&sb, ln); + lbuf_edit(xb, sbuf_buf(&sb), i, i + 1); + sbuf_free(&sb); + } + } + rstr_free(re); + return 0; +} + +static int ec_exec(char *loc, char *cmd, char *arg, char *txt) +{ + int beg, end; + char *text; + char *rep; + char *ecmd; + if (!(ecmd = ex_pathexpand(arg, 1))) + return 1; + if (!loc[0]) { + if (bufs_modified(0, "!: buffer modified")) + return 1; + ex_print(NULL); + return cmd_exec(ecmd); + } + if (ex_region(loc, &beg, &end)) + return 1; + text = lbuf_cp(xb, beg, end); + rep = cmd_pipe(ecmd, text, 1); + if (rep) + lbuf_edit(xb, rep, beg, end); + free(text); + free(rep); + return 0; +} + +static int ec_rx(char *loc, char *cmd, char *arg, char *txt) +{ + char *rep, *ecmd, *dat; + int reg = 0; + arg = ex_reg(arg, ®); + if (reg <= 0) + return 1; + if (!(ecmd = ex_pathexpand(arg, 1))) + return 1; + dat = reg_get(reg, NULL); + rep = cmd_pipe(ecmd, dat ? dat : "", 1); + reg_put(reg, rep ? rep : "", 1); + free(rep); + return !rep; +} + +static int ec_rk(char *loc, char *cmd, char *arg, char *txt) +{ + char *rep, *path; + int reg = 0; + arg = ex_reg(arg, ®); + if (reg <= 0) + return 1; + if (!(path = ex_pathexpand(arg, 1))) + return 1; + rep = cmd_unix(path, reg_get(reg, NULL)); + reg_put(reg, rep ? rep : "", 1); + free(rep); + return !rep; +} + +static int ec_make(char *loc, char *cmd, char *arg, char *txt) +{ + char make[EXLEN]; + char *target, *res; + if (!strchr(cmd, '!') && bufs_modified(0, "mak: buffer modified")) + return 1; + if (!(target = ex_pathexpand(arg, 0))) + return 1; + if (snprintf(make, sizeof(make), "make %s", target) >= sizeof(make)) + return 1; + ex_print(NULL); + if (!(res = cmd_pipe(make, "", 2))) + return 1; + reg_put('*', res, 1); + qfix_reset(); + free(res); + return 0; +} + +static int ec_ft(char *loc, char *cmd, char *arg, char *txt) +{ + if (arg[0]) + snprintf(bufs[0].ft, sizeof(bufs[0].ft), "%s", arg); + else + ex_print(ex_filetype()); + return 0; +} + +static int ec_cmap(char *loc, char *cmd, char *arg, char *txt) +{ + if (!arg[0]) + ex_print(kmap_map(xkmap, 0)); + if (arg[0] && strchr(cmd, '!')) + xkmap_alt = kmap_find(arg); + if (arg[0] && kmap_find(arg) >= 0) + xkmap = kmap_find(arg); + return 0; +} + +static char *ex_skip(char **arg) +{ + char *s = *arg; + char *beg; + while (isspace((unsigned char) *s)) + s++; + if (!*s) + return NULL; + beg = s; + while (*s && !isspace((unsigned char) *s)) + if (*s++ == '' && s[0]) + s++; + *arg = *s ? s + 1 : s; + *s = '\0'; + return beg; +} + +static int ec_highlight(char *loc, char *cmd, char *arg, char *txt) +{ + char *name = ex_skip(&arg); + char *attr = ex_skip(&arg); + char *fg = ex_skip(&arg); + char *bg = ex_skip(&arg); + int mode = 0; + if (!name) + return 1; + if (!attr) + attr = ""; + if (strchr(attr, 'b')) + mode |= SYN_BD; + if (strchr(attr, 'i')) + mode |= SYN_IT; + if (strchr(attr, 'r')) + mode |= SYN_RV; + if (strchr(attr, 'h')) + mode |= SYN_HP; + if (strchr(attr, 'l')) + mode |= SYN_LP; + if (fg && isdigit((unsigned char) *fg)) + mode |= SYN_FGMK(atoi(fg)); + if (bg && isdigit((unsigned char) *bg)) + mode |= SYN_BGMK(atoi(bg)); + conf_hlset(conf_hlnum(name), mode); + return 0; +} + +static int ec_mapkey(char *loc, char *cmd, char *arg, char *txt) +{ + char *src = ex_skip(&arg); + char *dst = ex_skip(&arg); + if (!src) + return 1; + kmap_def(xkmap, (unsigned char) src[0], dst); + return 0; +} + +static int ec_mapchar(char *loc, char *cmd, char *arg, char *txt) +{ + char *src = ex_skip(&arg); + char *dst = ex_skip(&arg); + char *wid = ex_skip(&arg); + if (!src || !src[0]) + return 1; + if (src[0] == '' && src[1]) + src++; + if (dst && dst[0] == '' && dst[1]) + dst++; + mapch_def(src, dst ? dst : "", wid ? atoi(wid) : -1); + return 0; +} + +static int ex_exec(char *ln); + +static int ec_glob(char *loc, char *cmd, char *arg, char *txt) +{ + char sb_buf[EXLEN]; + struct rstr *re; + int offs[32]; + int beg, end, not; + char *req = sb_buf; + char *pat; + int i; + snprintf(sb_buf, sizeof(sb_buf), "%s", arg); + if (!loc[0] && !xgdep) + loc = "%"; + if (ex_region(loc, &beg, &end)) + return 1; + not = strchr(cmd, '!') || cmd[0] == 'v'; + pat = re_read(&req); + if (pat && pat[0]) + ex_kwdset(pat, +1); + free(pat); + if (ex_kwd(&pat, NULL)) + return 1; + if (!(re = rstr_make(pat, xic ? RE_ICASE : 0))) + return 1; + xgdep++; + for (i = beg + 1; i < end; i++) + lbuf_globset(xb, i, xgdep); + i = beg; + while (i < lbuf_len(xb)) { + char *ln = lbuf_get(xb, i); + if ((rstr_find(re, ln, LEN(offs) / 2, offs, 0) < 0) == not) { + xrow = i; + if (ex_exec(req)) + break; + i = MIN(i, xrow); + } + while (i < lbuf_len(xb) && !lbuf_globget(xb, i, xgdep)) + i++; + } + for (i = 0; i < lbuf_len(xb); i++) + lbuf_globget(xb, i, xgdep); + xgdep--; + rstr_free(re); + return 0; +} + +#define TAGCNT 32 +#define TAGLEN 128 +#define TAGLOC 256 + +static int tag_row[TAGCNT]; +static int tag_off[TAGCNT]; +static int tag_pos[TAGCNT]; +static char tag_path[TAGCNT][TAGLOC]; +static char tag_name[TAGCNT][TAGLEN]; +static int tag_cnt = 0; + +static void ex_tagput(char *name) +{ + if (tag_cnt < TAGCNT) { + tag_row[tag_cnt] = xrow; + tag_off[tag_cnt] = xoff; + snprintf(tag_path[tag_cnt], sizeof(tag_path[tag_cnt]), "%s", ex_path()); + snprintf(tag_name[tag_cnt], sizeof(tag_name[tag_cnt]), "%s", name); + tag_cnt++; + } +} + +/* go to definition (dir=+1 next, dir=-1 prev, dir=0 first) */ +static int tag_goto(char *cmd, char *cw, int dir) +{ + char path[TAGLOC], pcmd[TAGLEN]; + char *s, *ln; + int pos = dir == 0 || tag_cnt == 0 ? 0 : tag_pos[tag_cnt - 1]; + if (tag_find(cw, &pos, dir, path, sizeof(path), pcmd, sizeof(pcmd))) { + ex_show("ta: tag not found"); + return 1; + } + if (dir == 0) + ex_tagput(cw); + tag_pos[tag_cnt - 1] = pos; + if (strcmp(path, ex_path()) != 0) { + if (access(path, R_OK) != 0) { + ex_show("ta: cannot open %s", path); + return 1; + } + if (ec_edit("", cmd, path, NULL) != 0) + return 1; + } + xrow = 0; + xoff = 0; + ex_command(pcmd); + ln = lbuf_get(xb, xrow); + if (ln && (s = strstr(ln, cw)) != NULL) + xoff = s - ln; + return 0; +} + +static int ec_tag(char *loc, char *cmd, char *arg, char *txt) +{ + return tag_goto(cmd, arg, 0); +} + +static void cmd_args(char *src, char *args[], int sz) +{ + int i; + for (i = 0; i < sz - 1 && *src; i++) { + while (isspace((unsigned char) *src)) + src++; + args[i] = src; + for (; *src && !isspace((unsigned char) *src); src++) { + if (*src == '\\' && src[1]) + src++; + } + if (*src) + *src++ = '\0'; + } + args[i] = NULL; +} + +static int ec_lsp(char *loc, char *cmd, char *arg, char *txt) +{ + char *lcmd[16]; + cmd_args(arg && arg[0] ? arg : "clangd", lcmd, LEN(lcmd)); + if (!lsp_init(lcmd)) { + ex_show("LSP server connected"); + return 0; + } + ex_show("lsp: failed to connect to the LSP server"); + return 1; +} + +static int ec_lspclose(char *loc, char *cmd, char *arg, char *txt) +{ + ex_show("LSP server disconnected"); + lsp_done(); + return 0; +} + +static int ec_lspgoto(char *loc, char *cmd, char *arg, char *txt) +{ + char path[TAGLOC]; + int drow, doff; + if (!strchr(cmd, '!') && bufs_modified(0, "lspg: buffer modified")) + return 1; + if (!ex_path() || lsp_definition(ex_path(), xrow, xoff, ex_filetype(), + path, sizeof(path), &drow, &doff)) { + ex_show(lsp_on() ? "lspg: not found" : "lspg: not connected"); + return 1; + } + ex_tagput("lspgoto"); + if (strcmp(path, ex_path()) != 0) { + if (access(path, R_OK) != 0) { + ex_show("lspg: cannot open %s", path); + return 1; + } + if (ec_edit("", cmd, path, NULL) != 0) + return 1; + } + xrow = drow; + xoff = doff; + return 0; +} + +static int ec_lspfind(char *loc, char *cmd, char *arg, char *txt) +{ + char *res; + if (!strchr(cmd, '!') && bufs_modified(0, "lspf: buffer modified")) + return 1; + res = lsp_find(ex_path(), xrow, xoff, ex_filetype()); + if (res) { + reg_put('*', res, 1); + qfix_reset(); + } else { + ex_show(lsp_on() ? "lspf: not found" : "lspf: not connected"); + } + free(res); + return !res; +} + +static int ec_lspdoc(char *loc, char *cmd, char *arg, char *txt) +{ + char *res; + int reg = 0; + ex_reg(arg, ®); + if (reg <= 0) { + ex_show("lspd: no yank buffer specified"); + return 1; + } + if (!strchr(cmd, '!') && bufs_modified(0, "lspd: buffer modified")) + return 1; + res = lsp_hover(ex_path(), xrow, xoff, ex_filetype()); + if (res) + reg_put(reg, res, 1); + else + ex_show(lsp_on() ? "lspd: no documentation" : "lspd: not connected"); + free(res); + return !res; +} + +static int ec_tclose(char *loc, char *cmd, char *arg, char *txt) +{ + tag_done(); + tag_cnt = 0; + return 0; +} + +static int ec_pop(char *loc, char *cmd, char *arg, char *txt) +{ + if (tag_cnt > 0) { + if (!ex_path() || strcmp(tag_path[tag_cnt - 1], ex_path()) != 0) + if (ec_edit("", cmd, tag_path[tag_cnt - 1], txt)) + return 1; + tag_cnt--; + xrow = tag_row[tag_cnt]; + xoff = tag_off[tag_cnt]; + return 0; + } else { + ex_show("po: tag stack empty"); + } + return 1; +} + +static int ec_tput(char *loc, char *cmd, char *arg, char *txt) +{ + ex_tagput(arg[0] ? arg : "tagput"); + return 0; +} + +static int ec_tnext(char *loc, char *cmd, char *arg, char *txt) +{ + if (tag_cnt > 0 && !tag_goto(cmd, tag_name[tag_cnt - 1], +1)) + return 0; + ex_show("tn: no more tags"); + return 1; +} + +static int ec_tprev(char *loc, char *cmd, char *arg, char *txt) +{ + if (tag_cnt > 0 && !tag_goto(cmd, tag_name[tag_cnt - 1], -1)) + return 0; + ex_show("tp: no more tags"); + return 1; +} + +static int ex_cjump(char *cmd) +{ + char txt[128]; + char path[1024]; + int row, off; + if (qfix_current(path, sizeof(path), &row, &off, txt, sizeof(txt))) { + ex_show("cn: no more items"); + return 1; + } + if (access(path, R_OK)) { + ex_show("cn: cannot open %s", path); + return 1; + } + if (ec_edit("", cmd, path, NULL) != 0) + return 1; + if (row < 0 || row >= lbuf_len(xb)) + row = 0; + xrow = row; + xoff = off; + ex_show("cn: %s", txt); + return 0; +} + +static int ec_cshow(char *loc, char *cmd, char *arg, char *txt) +{ + int res; + if ((res = ex_cjump(cmd))) + ex_show("cc: no more items"); + return res; +} + +static int ec_cnext(char *loc, char *cmd, char *arg, char *txt) +{ + if (qfix_next()) { + ex_show("cn: no more items"); + return 1; + } + return ex_cjump(cmd); +} + +static int ec_cprev(char *loc, char *cmd, char *arg, char *txt) +{ + if (qfix_prev()) { + ex_show("cp: no more items"); + return 1; + } + return ex_cjump(cmd); +} + +static int ec_crewind(char *loc, char *cmd, char *arg, char *txt) +{ + qfix_reset(); + return 0; +} + +static int ec_at(char *loc, char *cmd, char *arg, char *txt) +{ + int beg, end; + int lnmode; + char *buf = reg_get(REG(arg), &lnmode); + if (!buf || ex_region(loc, &beg, &end)) + return 1; + xrow = beg; + if (cmd[0] == 'r' && cmd[1] == 'a') { + struct sbuf sb = {0}; + char *s = buf; + int ret; + while (*s) { + if ((unsigned char) *s == '' && s[1]) { + char *reg = reg_get((unsigned char) *++s, NULL); + sbuf_str(&sb, reg ? reg : ""); + s++; + } else { + if ((unsigned char) *s == '' && s[1]) + s++; + sbuf_chr(&sb, (unsigned char) *s++); + } + } + ret = ex_command(sbuf_buf(&sb)); + sbuf_free(&sb); + return ret; + } + return ex_command(buf); +} + +static int ec_source(char *loc, char *cmd, char *arg, char *txt) +{ + char *path = arg[0] ? ex_pathexpand(arg, 1) : ex_path(); + char buf[1 << 10]; + struct sbuf sb = {0}; + int fd = path && path[0] ? open(path, O_RDONLY) : -1; + long nr; + if (fd < 0) + return 1; + while ((nr = read(fd, buf, sizeof(buf))) > 0) + sbuf_mem(&sb, buf, nr); + xsource = 1; + ex_command(sbuf_buf(&sb)); + xsource = 0; + sbuf_free(&sb); + return 0; +} + +static int ec_echo(char *loc, char *cmd, char *arg, char *txt) +{ + ex_show(arg); + return 0; +} + +static struct option { + char *abbr; + char *name; + int *var; +} options[] = { + {"ai", "autoindent", &xai}, + {"aw", "autowrite", &xaw}, + {"hist", "history", &xhist}, + {"hl", "highlight", &xhl}, + {"hll", "highlightline", &xhll}, + {"ic", "ignorecase", &xic}, + {"lim", "linelimit", &xlim}, + {"order", "order", &xorder}, + {"ru", "ruler", &xru}, + {"shape", "shape", &xshape}, + {"td", "textdirection", &xtd}, + {"ts", "tabstop", &xts}, + {"vte", "vte", &xvte}, + {"wa", "writeany", &xwa}, +}; + +static char *cutword(char *s, char *d) +{ + while (isspace(*s)) + s++; + while (*s && !isspace(*s)) + *d++ = *s++; + while (isspace(*s)) + s++; + *d = '\0'; + return s; +} + +static int ec_set(char *loc, char *cmd, char *arg, char *txt) +{ + char tok[EXLEN]; + char *opt = tok; + char *s = arg; + int val = 0; + int i; + if (*s) { + s = cutword(s, tok); + if (tok[0] == 'n' && tok[1] == 'o') { + opt = tok + 2; + } else { + char *r = strchr(tok, '='); + val = 1; + if (r) { + *r = '\0'; + val = atoi(r + 1); + } + } + for (i = 0; i < LEN(options); i++) { + struct option *o = &options[i]; + if (!strcmp(o->abbr, opt) || !strcmp(o->name, opt)) { + *o->var = val; + return 0; + } + } + ex_show("unknown option %s", opt); + return 1; + } + return 0; +} + +static struct excmd { + char *abbr; + char *name; + int (*ec)(char *loc, char *cmd, char *arg, char *txt); + int exclam; +} excmds[] = { + {"a", "append", ec_insert}, + {"b", "buffer", ec_buffer}, + {"d", "delete", ec_delete}, + {"c", "change", ec_insert}, + {"cc", "cc", ec_cshow, 1}, + {"cm", "cmap", ec_cmap, 1}, + {"cn", "cnext", ec_cnext, 1}, + {"cp", "cprev", ec_cprev, 1}, + {"cr", "crewind", ec_crewind}, + {"e", "edit", ec_edit, 1}, + {"ec", "echo", ec_echo}, + {"ew", "ew", ec_edit, 1}, + {"ft", "filetype", ec_ft}, + {"g", "global", ec_glob, 1}, + {"hl", "highlight", ec_highlight}, + {"i", "insert", ec_insert}, + {"k", "mark", ec_mark}, + {"lsp", "lspopen", ec_lsp}, + {"lspc", "lspclose", ec_lspclose}, + {"lspf", "lspfind", ec_lspfind, 1}, + {"lspg", "lspgoto", ec_lspgoto, 1}, + {"lspd", "lspdoc", ec_lspdoc, 1}, + {"mak", "make", ec_make, 1}, + {"mk", "mapkey", ec_mapkey}, + {"n", "next", ec_next, 1}, + {"p", "print", ec_print}, + {"mc", "mapchar", ec_mapchar}, + {"po", "pop", ec_pop, 1}, + {"pu", "put", ec_put}, + {"prev", "prev", ec_prev, 1}, + {"q", "quit", ec_quit, 1}, + {"r", "read", ec_read}, + {"redo", "redo", ec_redo}, + {"rs", "rs", ec_rs}, + {"rx", "rx", ec_rx}, + {"ra", "ra", ec_at}, + {"rk", "rk", ec_rk}, + {"se", "set", ec_set}, + {"s", "substitute", ec_substitute}, + {"so", "source", ec_source}, + {"ta", "tag", ec_tag, 1}, + {"tn", "tnext", ec_tnext, 1}, + {"tp", "tprev", ec_tprev, 1}, + {"tc", "tclose", ec_tclose}, + {"tt", "tput", ec_tput}, + {"u", "undo", ec_undo}, + {"v", "vglobal", ec_glob}, + {"w", "write", ec_write, 1}, + {"wq", "wq", ec_quit, 1}, + {"x", "xit", ec_quit, 1}, + {"xa", "xa", ec_quit, 1}, + {"y", "yank", ec_yank}, + {"!", "!", ec_exec}, + {"@", "@", ec_at}, + {"=", "=", ec_lnum}, + {"", "", ec_null}, +}; + +static int ex_idx(char *cmd) +{ + char base[32]; + int len, i; + snprintf(base, sizeof(base), "%s", cmd); + if ((len = strlen(base)) > 1 && base[len - 1] == '!') + base[len - 1] = '\0'; + for (i = 0; i < LEN(excmds); i++) + if (!strcmp(excmds[i].abbr, base) || !strcmp(excmds[i].name, base)) + return i; + return -1; +} + +/* read ex command addresses; return a static buffer */ +static char *ex_loc(char **src0) +{ + char *src = *src0; + static char sb_buf[EXLEN]; + struct sbuf sb = {sb_buf, sizeof(sb_buf)}; + while (*src == ':' || *src == ' ' || *src == '\t') + src++; + while (*src && strchr(".$0123456789'/?+-,;%", (unsigned char) *src) != NULL) { + if (*src == '\'') + sbuf_chr(&sb, *src++); + if (*src == '/' || *src == '?') { + int d = *src; + sbuf_chr(&sb, *src++); + while (*src && *src != d) { + if (*src == '\\' && src[1]) + sbuf_chr(&sb, *src++); + sbuf_chr(&sb, *src++); + } + } + if (*src) + sbuf_chr(&sb, *src++); + } + *src0 = src; + return sbuf_buf(&sb); +} + +/* read ex command name; returns a static buffer */ +static char *ex_cmd(char **src0) +{ + char *src = *src0; + static char sb_buf[32]; + struct sbuf sb = {sb_buf, sizeof(sb_buf)}; + while (*src == ' ' || *src == '\t') + src++; + while (isalpha((unsigned char) *src)) { + sbuf_chr(&sb, *src++); + if (src[-1] == 'k' && sbuf_len(&sb) == 1) + break; + } + if (*src == '!' || *src == '=' || *src == '@') + sbuf_chr(&sb, *src++); + *src0 = src; + return sbuf_buf(&sb); +} + +/* read ex command argument for excmd command; returns a static buffer */ +static char *ex_arg(char **src0, char *excmd) +{ + static char sb_buf[EXLEN]; + struct sbuf sb = {sb_buf, sizeof(sb_buf)}; + int c0 = excmd[0]; + int c1 = c0 ? excmd[1] : 0; + char *src = *src0; + while (*src == ' ' || *src == '\t') + src++; + if (c0 == '!' || c0 == 'g' || c0 == 'v' || + ((c0 == 'r' || c0 == 'w') && !c1 && src[0] == '!')) { + while (*src && *src != '\n') { + if (*src == '\\' && src[1]) + sbuf_chr(&sb, *src++); + sbuf_chr(&sb, *src++); + } + } else if ((c0 == 's' && c1 != 'e') || c0 == '&' || c0 == '~') { + int delim = *src; + int cnt = 2; + if (delim != '\n' && delim != '|' && delim != '\\' && delim != '"') { + sbuf_chr(&sb, *src++); + while (*src && *src != '\n' && cnt > 0) { + if (*src == delim) + cnt--; + if (*src == '\\' && src[1]) + sbuf_chr(&sb, *src++); + sbuf_chr(&sb, *src++); + } + } + } + while (*src && *src != '\n' && *src != '|' && *src != '"') { + if (*src == '\\' && src[1]) + sbuf_chr(&sb, *src++); + sbuf_chr(&sb, *src++); + } + if (*src == '"') { + while (*src && *src != '\n') + src++; + } + if (*src == '\n' || *src == '|') + src++; + *src0 = src; + return sbuf_buf(&sb); +} + +/* read ex text input for excmd command */ +static char *ex_txt(char **src0, char *excmd) +{ + char *src = *src0; + int c0 = excmd[0]; + int c1 = c0 ? excmd[1] : 0; + if (c0 == 'r' && c1 == 's' && src[0]) { + char *beg = src; + char *res; + while (src[0] && (src[0] != '\n' || src[1] != '.' || src[2] != '\n')) + src++; + res = malloc((src - beg) + 1 + 1); + memcpy(res, beg, src - beg); + res[src - beg] = '\n'; + res[src - beg + 1] = '\0'; + *src0 = src[0] ? src + 3 : src; + return res; + } + if ((c0 == 'r' && c1 == 's') || (c1 == 0 && (c0 == 'i' || c0 == 'a' || c0 == 'c'))) { + struct sbuf sb = {0}; + char *s; + while ((s = ex_read(""))) { + if (!strcmp(".", s)) { + free(s); + break; + } + sbuf_str(&sb, s); + sbuf_chr(&sb, '\n'); + free(s); + } + *src0 = src; + return sbuf_done(&sb); + } + return NULL; +} + +/* execute a single ex command */ +static int ex_exec(char *ln) +{ + int ret = 0; + while (!ret) { + char *loc, *cmd, *arg, *txt; + int idx; + loc = ex_loc(&ln); + cmd = ex_cmd(&ln); + idx = cmd ? ex_idx(cmd) : -1; + arg = ex_arg(&ln, idx >= 0 ? excmds[idx].abbr : "unknown"); + txt = ex_txt(&ln, idx >= 0 ? excmds[idx].abbr : "unknown"); + if (idx >= 0 && arg) { + ret = excmds[idx].ec(loc, cmd, arg, txt); + } else { + ret = 1; + ex_show("unknown command %s", cmd); + } + free(txt); + if (!*ln) + break; + } + return ret; +} + +/* execute ex commands */ +int ex_command(char *ln) +{ + int ret = ex_exec(ln); + lbuf_tx(xb); + return ret; +} + +/* ex main loop */ +void ex(void) +{ + while (!xquit) { + char *ln = ex_read(":"); + if (!ln) + break; + ex_command(ln); + reg_put(':', ln, 1); + free(ln); + } +} + +int ex_init(char **files) +{ + next = files; + if (ex_next("e", 0)) + return 1; + if (getenv("EXINIT")) { + ex_command(getenv("EXINIT")); + } else if (getenv("HOME")) { + char sb_buf[EXLEN]; + struct sbuf sb = {sb_buf, sizeof(sb_buf)}; + sbuf_str(&sb, getenv("HOME")); + sbuf_str(&sb, "/.neatvi"); + if (sbuf_buf(&sb) && !access(sbuf_buf(&sb), R_OK)) + ec_source("", "so", sbuf_buf(&sb), NULL); + } + return 0; +} + +void ex_done(void) +{ + int i; + lsp_done(); + for (i = 0; i < LEN(bufs); i++) + bufs_free(i); +} diff --git a/Apps/Neatvi/main/Source/kmap.h b/Apps/Neatvi/main/Source/kmap.h new file mode 100644 index 0000000..f0dce9a --- /dev/null +++ b/Apps/Neatvi/main/Source/kmap.h @@ -0,0 +1,453 @@ +static char *kmap_en[256] = { + [0] = "en", +}; + +static char *kmap_fa[256] = { + [0] = "fa", + ['`'] = "‍", + ['1'] = "۱", + ['2'] = "۲", + ['3'] = "۳", + ['4'] = "۴", + ['5'] = "۵", + ['6'] = "۶", + ['7'] = "۷", + ['8'] = "۸", + ['9'] = "۹", + ['0'] = "۰", + ['-'] = "-", + ['='] = "=", + ['q'] = "ض", + ['w'] = "ص", + ['e'] = "ث", + ['r'] = "ق", + ['t'] = "ف", + ['y'] = "غ", + ['u'] = "ع", + ['i'] = "ه", + ['o'] = "خ", + ['p'] = "ح", + ['['] = "ج", + [']'] = "چ", + ['a'] = "ش", + ['s'] = "س", + ['d'] = "ی", + ['f'] = "ب", + ['g'] = "ل", + ['h'] = "ا", + ['j'] = "ت", + ['k'] = "ن", + ['l'] = "م", + [';'] = "ک", + ['\''] = "گ", + ['z'] = "ظ", + ['x'] = "ط", + ['c'] = "ز", + ['v'] = "ر", + ['b'] = "ذ", + ['n'] = "د", + ['m'] = "پ", + [','] = "و", + ['.'] = ".", + ['/'] = "/", + ['\\'] = "\\", + ['~'] = "÷", + ['!'] = "!", + ['@'] = "٬", + ['#'] = "٫", + ['$'] = "﷼", + ['%'] = "٪", + ['^'] = "×", + ['&'] = "،", + ['*'] = "*", + ['('] = "(", + [')'] = ")", + ['_'] = "ـ", + ['+'] = "+", + ['Q'] = "ْ", + ['W'] = "ٌ", + ['E'] = "ٍ", + ['R'] = "ً", + ['T'] = "ُ", + ['Y'] = "ِ", + ['U'] = "َ", + ['I'] = "ّ", + ['O'] = "[", + ['P'] = "]", + ['{'] = "{", + ['}'] = "}", + ['A'] = "ؤ", + ['S'] = "ئ", + ['D'] = "ي", + ['F'] = "إ", + ['G'] = "أ", + ['H'] = "آ", + ['J'] = "ة", + ['K'] = "«", + ['L'] = "»", + [':'] = ":", + ['"'] = "؛", + ['Z'] = "ك", + ['X'] = "ٓ", + ['C'] = "ژ", + ['V'] = "ٰ", + ['B'] = "‌", + ['N'] = "ٔ", + ['M'] = "ء", + ['<'] = "<", + ['>'] = ">", + ['?'] = "؟", + ['|'] = "|", +}; + +static char *kmap_xy[256]; + +static char **kmaps[] = {kmap_en, kmap_fa, kmap_xy}; + +static char *digraphs[][2] = { + {"cq", "’"}, + {"pl", "+"}, + {"hy", "-"}, + {"sl", "/"}, + {"eq", "="}, + {"dq", "\""}, + {"rs", "\\"}, + {"ru", "_"}, + {"ul", "_"}, + {"oq", "‘"}, + {"or", "|"}, + {"!!", "¡"}, + {"r!", "¡"}, + {"c|", "¢"}, + {"ct", "¢"}, + {"L-", "£"}, + {"ps", "£"}, + {"xo", "¤"}, + {"cr", "¤"}, + {"Y-", "¥"}, + {"yn", "¥"}, + {"||", "¦"}, + {"so", "§"}, + {"sc", "§"}, + {"co", "©"}, + {"a_", "ª"}, + {"<<", "«"}, + {"Fo", "«"}, + {"-,", "¬"}, + {"no", "¬"}, + {"ro", "®"}, + {"rg", "®"}, + {"0^", "°"}, + {"de", "°"}, + {"+-", "±"}, + {"2^", "²"}, + {"3^", "³"}, + {"P!", "¶"}, + {"pg", "¶"}, + {".^", "·"}, + {"1^", "¹"}, + {"o_", "º"}, + {">>", "»"}, + {"Fc", "»"}, + {"14", "¼"}, + {"12", "½"}, + {"34", "¾"}, + {"??", "¿"}, + {"r?", "¿"}, + {"A`", "À"}, + {"A'", "Á"}, + {"A^", "Â"}, + {"A~", "Ã"}, + {"A-", "Ā"}, + {"A:", "Ä"}, + {"A\"", "A:"}, + {"A*", "Å"}, + {"AE", "Æ"}, + {"C,", "Ç"}, + {"E`", "È"}, + {"E'", "É"}, + {"E^", "Ê"}, + {"E-", "Ē"}, + {"E:", "Ë"}, + {"I`", "Ì"}, + {"I'", "Í"}, + {"I^", "Î"}, + {"I-", "Ī"}, + {"I:", "Ï"}, + {"D-", "Ð"}, + {"N~", "Ñ"}, + {"O`", "Ò"}, + {"O'", "Ó"}, + {"O^", "Ô"}, + {"O~", "Õ"}, + {"O-", "Ō"}, + {"O:", "Ö"}, + {"xx", "×"}, + {"mu", "×"}, + {"O/", "Ø"}, + {"U`", "Ù"}, + {"U'", "Ú"}, + {"U^", "Û"}, + {"U-", "Ū"}, + {"U:", "Ü"}, + {"Y'", "Ý"}, + {"TH", "Þ"}, + {"ss", "ß"}, + {"a`", "à"}, + {"a'", "á"}, + {"a^", "â"}, + {"a-", "ā"}, + {"a~", "ã"}, + {"a:", "ä"}, + {"a*", "å"}, + {"ae", "æ"}, + {"c,", "ç"}, + {"e`", "è"}, + {"e'", "é"}, + {"e^", "ê"}, + {"e:", "ë"}, + {"e-", "ē"}, + {"i`", "ì"}, + {"i'", "í"}, + {"i^", "î"}, + {"i-", "ī"}, + {"i:", "ï"}, + {"d-", "ð"}, + {"n~", "ñ"}, + {"o`", "ò"}, + {"o'", "ó"}, + {"o^", "ô"}, + {"o~", "õ"}, + {"o-", "ō"}, + {"o:", "ö"}, + {"di", "÷"}, + {"-:", "÷"}, + {"o/", "ø"}, + {"u`", "ù"}, + {"u'", "ú"}, + {"u^", "û"}, + {"u-", "ū"}, + {"u:", "ü"}, + {"y'", "ý"}, + {"y-", "ȳ"}, + {"th", "þ"}, + {"y:", "ÿ"}, + {"C<", "Č"}, + {"c<", "č"}, + {"D<", "Ď"}, + {"d<", "ď"}, + {"e<", "ě"}, + {"n<", "ň"}, + {"O\"", "Ő"}, + {"o\"", "ő"}, + {"R<", "Ř"}, + {"r<", "ř"}, + {"S<", "Š"}, + {"s<", "š"}, + {"T<", "Ť"}, + {"t<", "ť"}, + {"U*", "Ů"}, + {"u*", "ů"}, + {"U\"", "Ű"}, + {"u\"", "ű"}, + {"Y:", "Ÿ"}, + {"Y-", "Ȳ"}, + {"Z<", "Ž"}, + {"z<", "ž"}, + {"fn", "ƒ"}, + {",,", "¸"}, + {",a", "¸"}, + {"aa", "´"}, + {"\\'", "´"}, + {"-a", "¯"}, + {"\"\"", "¨"}, + {":a", "¨"}, + {"^", "ˆ"}, + {"^a", "ˆ"}, + {"va", "ˇ"}, + {"Ua", "˘"}, + {".a", "˙"}, + {"oa", "˚"}, + {"Ca", "˛"}, + {"\"a", "˝"}, + {"~", "˜"}, + {"*A", "Α"}, + {"*B", "Β"}, + {"*G", "Γ"}, + {"*E", "Ε"}, + {"*Z", "Ζ"}, + {"*Y", "Η"}, + {"*H", "Θ"}, + {"*I", "Ι"}, + {"*K", "Κ"}, + {"*L", "Λ"}, + {"*M", "Μ"}, + {"*N", "Ν"}, + {"*C", "Ξ"}, + {"*O", "Ο"}, + {"*P", "Π"}, + {"*R", "Ρ"}, + {"*S", "Σ"}, + {"*T", "Τ"}, + {"*U", "Υ"}, + {"*F", "Φ"}, + {"*X", "Χ"}, + {"*Q", "Ψ"}, + {"*W", "Ω"}, + {"*a", "α"}, + {"*b", "β"}, + {"*g", "γ"}, + {"*d", "δ"}, + {"*e", "ε"}, + {"*z", "ζ"}, + {"*y", "η"}, + {"*h", "θ"}, + {"*i", "ι"}, + {"*k", "κ"}, + {"*l", "λ"}, + {"*m", "μ"}, + {"/u", "µ"}, + {"*n", "ν"}, + {"*c", "ξ"}, + {"*o", "ο"}, + {"*p", "π"}, + {"*r", "ρ"}, + {"ts", "ς"}, + {"*s", "σ"}, + {"*t", "τ"}, + {"*u", "υ"}, + {"*f", "φ"}, + {"*x", "χ"}, + {"*q", "ψ"}, + {"*w", "ω"}, + {"en", "–"}, + {"\\-", "–"}, + {"em", "—"}, + {"--", "—"}, + {"bq", "‚"}, + {"``", "“"}, + {"lq", "“"}, + {"''", "”"}, + {"rq", "”"}, + {"dg", "†"}, + {"dd", "‡"}, + {"bu", "•"}, + {"el", "…"}, + {"%0", "‰"}, + {"fm", "′"}, + {"fo", "‹"}, + {"fc", "›"}, + {"fr", "⁄"}, + {"If", "ℑ"}, + {"ws", "℘"}, + {"Rf", "ℜ"}, + {"af", "ℵ"}, + {"<-", "←"}, + {"ua", "↑"}, + {"->", "→"}, + {"da", "↓"}, + {"<>", "↔"}, + {"ab", "↔"}, + {"CR", "↵"}, + {"fa", "∀"}, + {"pd", "∂"}, + {"te", "∃"}, + {"es", "∅"}, + {"*D", "Δ"}, + {"gr", "∇"}, + {"mo", "∈"}, + {"!m", "∉"}, + {"st", "∋"}, + {"pr", "∏"}, + {"su", "∑"}, + {"mi", "−"}, + {"-+", "∓"}, + {"**", "∗"}, + {"sr", "√"}, + {"pt", "∝"}, + {"if", "∞"}, + {"an", "∠"}, + {"l&", "∧"}, + {"l|", "∨"}, + {"ca", "∩"}, + {"cu", "∪"}, + {"is", "∫"}, + {"tf", "∴"}, + {"ap", "∼"}, + {"cg", "≅"}, + {"=~", "≅"}, + {"~~", "≈"}, + {"!=", "≠"}, + {"==", "≡"}, + {"<=", "≤"}, + {">=", "≥"}, + {"sb", "⊂"}, + {"sp", "⊃"}, + {"!b", "⊄"}, + {"ib", "⊆"}, + {"ip", "⊇"}, + {"O+", "⊕"}, + {"Ox", "⊗"}, + {"pp", "⊥"}, + {"c.", "⋅"}, + {"b<", "〈"}, + {"b>", "〉"}, + {"lz", "◊"}, + {"ci", "○"}, + {"la", "⟨"}, + {"ra", "⟩"}, + {"co", ""}, + {"rg", ""}, + {"tm", ""}, + {"rn", ""}, + {"av", ""}, + {"ah", ""}, + {"RG", ""}, + {"CO", ""}, + {"TM", ""}, + {"LT", ""}, + {"br", ""}, + {"LX", ""}, + {"LB", ""}, + {"LT", "⎛"}, + {"LX", "⎜"}, + {"LB", "⎝"}, + {"lc", ""}, + {"lx", ""}, + {"lf", ""}, + {"lc", "⎡"}, + {"lx", "⎢"}, + {"lf", "⎣"}, + {"lt", ""}, + {"lk", ""}, + {"lb", ""}, + {"lt", "⎧"}, + {"lk", "⎨"}, + {"lb", "⎩"}, + {"bv", "⎪"}, + {"RT", ""}, + {"RX", ""}, + {"RB", ""}, + {"RT", "⎞"}, + {"RX", "⎟"}, + {"RB", "⎠"}, + {"rc", ""}, + {"rx", ""}, + {"rf", ""}, + {"rc", "⎤"}, + {"rx", "⎥"}, + {"rf", "⎦"}, + {"rt", ""}, + {"rk", ""}, + {"rb", ""}, + {"rt", "⎫"}, + {"rk", "⎬"}, + {"rb", "⎭"}, + {"ff", "ff"}, + {"fi", "fi"}, + {"fl", "fl"}, + {"ffi", "ffi"}, + {"Fi", "ffi"}, + {"ffl", "ffl"}, + {"Fl", "ffl"}, +}; diff --git a/Apps/Neatvi/main/Source/lbuf.c b/Apps/Neatvi/main/Source/lbuf.c new file mode 100644 index 0000000..79d08a7 --- /dev/null +++ b/Apps/Neatvi/main/Source/lbuf.c @@ -0,0 +1,439 @@ +#include +#include +#include +#include +#include +#include +#include "vi.h" + +#define NMARKS_BASE ('z' - 'a' + 3) +#define NMARKS 32 + +/* line operations */ +struct lopt { + char *ins, *del; /* inserted/deleted text */ + long ins_len, del_len; /* number of bytes in ins/del */ + int pos, n_ins, n_del; /* modification location */ + int pos_off; /* cursor line offset */ + int seq; /* operation number */ + int *mark, *mark_off; /* saved marks */ +}; + +/* line buffers */ +struct lbuf { + int mark[NMARKS]; /* mark lines */ + int mark_off[NMARKS]; /* mark line offsets */ + char **ln; /* buffer lines */ + long *ln_len; /* buffer lines */ + char *ln_glob; /* line global mark */ + int ln_n; /* number of lines in ln[] */ + int ln_sz; /* size of ln[] */ + int useq; /* current operation sequence */ + struct lopt *hist; /* buffer history */ + int hist_sz; /* size of hist[] */ + int hist_n; /* current history head in hist[] */ + int hist_u; /* current undo head in hist[] */ + int useq_zero; /* useq for lbuf_saved() */ + int useq_last; /* useq before hist[] */ +}; + +struct lbuf *lbuf_make(void) +{ + struct lbuf *lb = malloc(sizeof(*lb)); + int i; + memset(lb, 0, sizeof(*lb)); + for (i = 0; i < LEN(lb->mark); i++) + lb->mark[i] = -1; + lb->useq = 1; + return lb; +} + +static void lopt_done(struct lopt *lo) +{ + free(lo->ins); + free(lo->del); + free(lo->mark); + free(lo->mark_off); +} + +static void lbuf_savemark(struct lbuf *lb, struct lopt *lo, int m) +{ + if (lb->mark[m] >= 0) { + if (!lo->mark) { + lo->mark = malloc(sizeof(lb->mark)); + lo->mark_off = malloc(sizeof(lb->mark_off)); + memset(lo->mark, 0xff, sizeof(lb->mark)); + } + lo->mark[m] = lb->mark[m]; + lo->mark_off[m] = lb->mark_off[m]; + } +} + +static void lbuf_loadmark(struct lbuf *lb, struct lopt *lo, int m) +{ + if (lo->mark && lo->mark[m] >= 0) { + lb->mark[m] = lo->mark[m]; + lb->mark_off[m] = lo->mark_off[m]; + } +} + +static int markidx(int mark) +{ + if (islower(mark)) + return mark - 'a'; + if (mark == '\'' || mark == '`') + return 'z' - 'a' + 1; + if (mark == '*') + return 'z' - 'a' + 2; + if (mark == '[') + return 'z' - 'a' + 3; + if (mark == ']') + return 'z' - 'a' + 4; + if (mark == '^') + return 'z' - 'a' + 5; + return -1; +} + +static void lbuf_markcopy(struct lbuf *lb, int dst, int src) +{ + lb->mark[markidx(dst)] = lb->mark[markidx(src)]; + lb->mark_off[markidx(dst)] = lb->mark_off[markidx(src)]; +} + +static void lbuf_savepos(struct lbuf *lb, struct lopt *lo) +{ + if (lb->mark[markidx('^')] >= 0) + lo->pos_off = lb->mark_off[markidx('^')]; + lbuf_markcopy(lb, '*', '^'); +} + +static void lbuf_loadpos(struct lbuf *lb, struct lopt *lo) +{ + lb->mark[markidx('^')] = lo->pos; + lb->mark_off[markidx('^')] = lo->pos_off; + lbuf_markcopy(lb, '*', '^'); +} + +void lbuf_free(struct lbuf *lb) +{ + int i; + for (i = 0; i < lb->ln_n; i++) + free(lb->ln[i]); + for (i = 0; i < lb->hist_n; i++) + lopt_done(&lb->hist[i]); + free(lb->hist); + free(lb->ln); + free(lb->ln_len); + free(lb->ln_glob); + free(lb); +} + +static long linelength(char *s, long slen) +{ + char *r = memchr(s, '\n', slen); + return r ? r - s + 1 : slen; +} + +static int linecount(char *s, long slen) +{ + char *e = s + slen; + int n; + for (n = 0; s && s < e; n++) + s += linelength(s, e - s); + return n; +} + +/* low-level line replacement */ +static void lbuf_replace(struct lbuf *lb, char *s, long slen, int pos, int n_del) +{ + int n_ins = linecount(s, slen); + char *e = s + slen; + int i; + while (lb->ln_n + n_ins - n_del >= lb->ln_sz) { + int nsz = lb->ln_sz + (lb->ln_sz ? lb->ln_sz : 512); + char **nln = malloc(nsz * sizeof(nln[0])); + long *nln_len = malloc(nsz * sizeof(nln_len[0])); + char *nln_glob = malloc(nsz * sizeof(nln_glob[0])); + memcpy(nln, lb->ln, lb->ln_n * sizeof(lb->ln[0])); + memcpy(nln_len, lb->ln_len, lb->ln_n * sizeof(lb->ln_len[0])); + memcpy(nln_glob, lb->ln_glob, lb->ln_n * sizeof(lb->ln_glob[0])); + free(lb->ln); + free(lb->ln_len); + free(lb->ln_glob); + lb->ln = nln; + lb->ln_len = nln_len; + lb->ln_glob = nln_glob; + lb->ln_sz = nsz; + } + for (i = 0; i < n_del; i++) + free(lb->ln[pos + i]); + if (n_ins != n_del) { + memmove(lb->ln + pos + n_ins, lb->ln + pos + n_del, + (lb->ln_n - pos - n_del) * sizeof(lb->ln[0])); + memmove(lb->ln_len + pos + n_ins, lb->ln_len + pos + n_del, + (lb->ln_n - pos - n_del) * sizeof(lb->ln_len[0])); + memmove(lb->ln_glob + pos + n_ins, lb->ln_glob + pos + n_del, + (lb->ln_n - pos - n_del) * sizeof(lb->ln_glob[0])); + } + lb->ln_n += n_ins - n_del; + for (i = 0; i < n_ins; i++) { + long l = s ? linelength(s, e - s) : 0; + long l_nonl = l - (l > 0 && s[l - 1] == '\n'); + char *n = malloc(l_nonl + 2); + memcpy(n, s, l_nonl); + n[l_nonl + 0] = '\n'; + n[l_nonl + 1] = '\0'; + lb->ln[pos + i] = n; + lb->ln_len[pos + i] = l; + s += l; + } + for (i = n_del; i < n_ins; i++) + lb->ln_glob[pos + i] = 0; + for (i = 0; i < LEN(lb->mark); i++) { /* updating marks */ + if (!s && lb->mark[i] >= pos && lb->mark[i] < pos + n_del) + lb->mark[i] = -1; + else if (lb->mark[i] >= pos + n_del) + lb->mark[i] += n_ins - n_del; + else if (lb->mark[i] >= pos + n_ins) + lb->mark[i] = pos + n_ins - 1; + } + lbuf_mark(lb, '[', pos, 0); + lbuf_mark(lb, ']', pos + (n_ins ? n_ins - 1 : 0), 0); +} + +static char *lbuf_copy(struct lbuf *lb, int beg, int end, long *len) +{ + struct sbuf sb = {0}; + int i; + for (i = beg; i < end; i++) + if (i < lb->ln_n) + sbuf_mem(&sb, lb->ln[i], lb->ln_len[i]); + if (len) + *len = sbuf_len(&sb); + return sbuf_done(&sb); +} + +/* append undo/redo history */ +static void lbuf_opt(struct lbuf *lb, char *s, long slen, int pos, int n_del) +{ + struct lopt *lo; + int i; + for (i = lb->hist_u; i < lb->hist_n; i++) + lopt_done(&lb->hist[i]); + lb->hist_n = lb->hist_u; + lo = &lb->hist[lb->hist_n - 1]; + /* merging changes to the same line */ + if (lb->hist_n > 0 && lo->seq == lb->useq && lo->pos == pos) { + if (lo->n_ins == 1 && n_del == 1 && linecount(s, slen) == 1) { + free(lo->ins); + lo->ins = s ? malloc(slen) : NULL; + if (lo->ins) + memcpy(lo->ins, s, slen); + lo->ins_len = slen; + lb->hist_u = lb->hist_n; + lbuf_savepos(lb, lo); + return; + } + } + if (lb->hist_n == lb->hist_sz) { + int sz = lb->hist_sz + (lb->hist_sz ? lb->hist_sz : 128); + struct lopt *hist = malloc(sz * sizeof(hist[0])); + memcpy(hist, lb->hist, lb->hist_n * sizeof(hist[0])); + free(lb->hist); + lb->hist = hist; + lb->hist_sz = sz; + } + lo = &lb->hist[lb->hist_n]; + lb->hist_n++; + lb->hist_u = lb->hist_n; + memset(lo, 0, sizeof(*lo)); + lo->pos = pos; + lo->n_del = n_del; + lo->del_len = 0; + lo->del = n_del ? lbuf_copy(lb, pos, pos + n_del, &lo->del_len) : NULL; + lo->n_ins = s ? linecount(s, slen) : 0; + lo->ins = s ? uc_dup(s) : NULL; + lo->ins_len = slen; + lo->seq = lb->useq; + lbuf_savepos(lb, lo); + for (i = 0; i < NMARKS_BASE; i++) + if (lb->mark[i] >= pos && lb->mark[i] < pos + n_del) + lbuf_savemark(lb, lo, i); +} + +static void lbuf_editraw(struct lbuf *lb, char *s, long slen, int beg, int end) +{ + if (beg > lb->ln_n) + beg = lb->ln_n; + if (end > lb->ln_n) + end = lb->ln_n; + if (beg == end && !s) + return; + lbuf_opt(lb, s, slen, beg, end - beg); + lbuf_replace(lb, s, slen, beg, end - beg); +} + +/* replace lines beg through end with s */ +void lbuf_edit(struct lbuf *lb, char *s, int beg, int end) +{ + lbuf_editraw(lb, s, s ? strlen(s) : 0, beg, end); +} + +int lbuf_rd(struct lbuf *lbuf, int fd, int beg, int end) +{ + char buf[1 << 10]; + struct sbuf sb = {0}; + long nr; + while ((nr = read(fd, buf, sizeof(buf))) > 0) + sbuf_mem(&sb, buf, nr); + if (!nr) + lbuf_editraw(lbuf, sbuf_buf(&sb), sbuf_len(&sb), beg, end); + sbuf_free(&sb); + return nr != 0; +} + +static long write_fully(int fd, void *buf, long sz) +{ + long nw = 0, nc = 0; + while (nw < sz && ((nc = write(fd, buf + nw, sz - nw)) >= 0 || errno == EINTR)) + nw += nc > 0 ? nc : 0; + return nc >= 0 ? nw : -1; +} + +int lbuf_wr(struct lbuf *lbuf, int fd, int beg, int end) +{ + char buf[4096]; + long buf_len = 0, sz = 0; + int i; + for (i = beg; i < end; i++) { + char *ln = lbuf->ln[i]; + long nl = lbuf->ln_len[i]; + if (buf_len > 0 && buf_len + nl > sizeof(buf)) { + if (write_fully(fd, buf, buf_len) != buf_len) + return 1; + buf_len = 0; + } + if (nl >= sizeof(buf)) { + if (write_fully(fd, ln, nl) != nl) + return 1; + } else { + memcpy(buf + buf_len, ln, nl); + buf_len += nl; + } + sz += nl; + } + if (buf_len > 0 && write_fully(fd, buf, buf_len) != buf_len) + return 1; + ftruncate(fd, sz); + return 0; +} + +char *lbuf_cp(struct lbuf *lb, int beg, int end) +{ + return lbuf_copy(lb, beg, end, NULL); +} + +char *lbuf_get(struct lbuf *lb, int pos) +{ + return pos >= 0 && pos < lb->ln_n ? lb->ln[pos] : NULL; +} + +int lbuf_len(struct lbuf *lb) +{ + return lb->ln_n; +} + +void lbuf_mark(struct lbuf *lbuf, int mark, int pos, int off) +{ + if (markidx(mark) >= 0) { + lbuf->mark[markidx(mark)] = pos; + lbuf->mark_off[markidx(mark)] = off; + } +} + +int lbuf_jump(struct lbuf *lbuf, int mark, int *pos, int *off) +{ + int mk = markidx(mark); + if (mk < 0 || lbuf->mark[mk] < 0) + return 1; + *pos = lbuf->mark[mk]; + if (off) + *off = lbuf->mark_off[mk]; + return 0; +} + +int lbuf_undo(struct lbuf *lb) +{ + int useq, i; + if (!lb->hist_u) + return 1; + useq = lb->hist[lb->hist_u - 1].seq; + while (lb->hist_u && lb->hist[lb->hist_u - 1].seq == useq) { + struct lopt *lo = &lb->hist[--(lb->hist_u)]; + lbuf_replace(lb, lo->del, lo->del_len, lo->pos, lo->n_ins); + lbuf_loadpos(lb, lo); + for (i = 0; i < LEN(lb->mark); i++) + lbuf_loadmark(lb, lo, i); + } + return 0; +} + +int lbuf_redo(struct lbuf *lb) +{ + int useq; + if (lb->hist_u == lb->hist_n) + return 1; + useq = lb->hist[lb->hist_u].seq; + while (lb->hist_u < lb->hist_n && lb->hist[lb->hist_u].seq == useq) { + struct lopt *lo = &lb->hist[lb->hist_u++]; + lbuf_replace(lb, lo->ins, lo->ins_len, lo->pos, lo->n_del); + lbuf_loadpos(lb, lo); + } + return 0; +} + +static int lbuf_seq(struct lbuf *lb) +{ + return lb->hist_u ? lb->hist[lb->hist_u - 1].seq : lb->useq_last; +} + +/* mark buffer as saved and, if clear, clear the undo history */ +void lbuf_saved(struct lbuf *lb, int clear) +{ + int i; + if (clear) { + for (i = 0; i < lb->hist_n; i++) + lopt_done(&lb->hist[i]); + lb->hist_n = 0; + lb->hist_u = 0; + lb->useq_last = lb->useq; + } + lb->useq_zero = lbuf_seq(lb); + lbuf_modified(xb); +} + +/* was the file modified since the last lbuf_saved() */ +int lbuf_modified(struct lbuf *lb) +{ + return lbuf_seq(lb) != lb->useq_zero; +} + +/* start a new change set */ +void lbuf_tx(struct lbuf *lb) +{ + lb->useq++; +} + +/* mark the line for ex global command */ +void lbuf_globset(struct lbuf *lb, int pos, int dep) +{ + lb->ln_glob[pos] |= 1 << dep; +} + +/* return and clear ex global command mark */ +int lbuf_globget(struct lbuf *lb, int pos, int dep) +{ + int o = lb->ln_glob ? lb->ln_glob[pos] & (1 << dep) : 0; + lb->ln_glob[pos] &= ~(1 << dep); + return o > 0; +} diff --git a/Apps/Neatvi/main/Source/led.c b/Apps/Neatvi/main/Source/led.c new file mode 100644 index 0000000..7203c50 --- /dev/null +++ b/Apps/Neatvi/main/Source/led.c @@ -0,0 +1,327 @@ +/* line editing and drawing */ +#include +#include +#include +#include +#include +#include "vi.h" + +static int led_pos(int dir, int pos, int beg, int end) +{ + return dir >= 0 ? pos - beg : end - pos - 1; +} + +static int led_offdir(char **chrs, int *pos, int i) +{ + if (pos[i] + ren_cwid(chrs[i], pos[i]) == pos[i + 1]) + return +1; + if (pos[i + 1] + ren_cwid(chrs[i + 1], pos[i + 1]) == pos[i]) + return -1; + return 0; +} + +/* highlight text in reverse direction */ +static void led_markrev(int n, char **chrs, int *pos, int *att) +{ + int i = 0, j; + int hl = conf_hl('~'); + while (i + 1 < n) { + int dir = led_offdir(chrs, pos, i); + int beg = i; + while (i + 1 < n && led_offdir(chrs, pos, i) == dir) + i++; + if (dir < 0) + for (j = beg; j <= i; j++) + att[j] = syn_merge(hl, att[j]); + if (i == beg) + i++; + } +} + +/* render and print a line */ +void led_print(char *s0, int row, int cbeg, int cols, char *syn, char **old) +{ + int *pos; /* pos[i]: the screen position of the i-th character */ + int *off; /* off[i]: the character at screen position i */ + int *att; /* att[i]: the attributes of i-th character */ + char **chrs; /* chrs[i]: the i-th character in s1 */ + int cend = cbeg + cols; + int clast = 0; /* the last non-blank column */ + int att_old = 0; + struct sbuf out = {0}; + int n, i, j; + int ctx = dir_context(s0); + int att_blank = 0; /* the attribute of blank space */ + int out_col = 0; /* draw starting at this column */ + int out_off = old && *old ? -1 : 0; + int out_att = 0; + int old_len = old && *old ? strlen(*old) : 0; + chrs = uc_chop(s0, &n); + pos = ren_position(s0, n); + off = malloc((cend - cbeg) * sizeof(off[0])); + memset(off, 0xff, (cend - cbeg) * sizeof(off[0])); + /* initialise off[] using pos[] */ + for (i = 0; i < n; i++) { + int curwid = ren_cwid(chrs[i], pos[i]); + int curbeg = led_pos(ctx, pos[i], cbeg, cend); + int curend = led_pos(ctx, pos[i] + curwid - 1, cbeg, cend); + if (curbeg >= 0 && curbeg < (cend - cbeg) && + curend >= 0 && curend < (cend - cbeg)) { + for (j = 0; j < curwid; j++) + off[led_pos(ctx, pos[i] + j, cbeg, cend)] = i; + } + } + att = syn_highlight(n <= xlim ? syn : "", s0); + /* find the last non-empty column */ + for (i = cbeg; i < cend; i++) + if (off[i - cbeg] >= 0) + clast = i; + /* the attribute of the last character is used for blanks */ + att_blank = n > 0 ? att[n - 1] : 0; + led_markrev(n, chrs, pos, att); + /* generate term output */ + sbuf_str(&out, xvte ? "\33[8l" : ""); /* disable BiDi in vte-based terminals */ + i = cbeg; + while (i < cend && i <= clast) { + int o = off[i - cbeg]; + int att_new = o >= 0 ? att[o] : att_blank; + int soff = sbuf_len(&out); + int scol = i - cbeg; + sbuf_str(&out, term_seqattr(att_new, att_old)); + att_old = att_new; + if (o >= 0) { + if (ren_translate(chrs[o], s0)) { + sbuf_str(&out, ren_translate(chrs[o], s0)); + } else if (uc_isprint(chrs[o])) { + sbuf_mem(&out, chrs[o], uc_len(chrs[o])); + } else { + int cw = 0; + if (chrs[o][0] == '\t' && mapch_get("\t", NULL)) + sbuf_str(&out, mapch_get("\t", &cw)); + for (j = i + cw; j < cend && off[j - cbeg] == o; j++) + sbuf_chr(&out, ' '); + } + while (i < cend && off[i - cbeg] == o) + i++; + } else { + sbuf_chr(&out, ' '); + i++; + } + if (out_off < 0) { + int old_diverged = soff >= old_len || + memcmp(*old + soff, sbuf_buf(&out) + soff, sbuf_len(&out) - soff); + int old_prefix = i > clast && sbuf_len(&out) < old_len; + if (old_diverged || old_prefix) { + out_off = soff; + out_col = scol; + out_att = att_new; + } + } + } + /* write only if the line was changed */ + if (out_off >= 0) { + term_pos(row, out_col); + term_str(term_seqattr(out_att, 0)); + term_str(sbuf_buf(&out) + out_off); + if (clast < cend - 1) + term_str(term_seqkill()); + term_str(term_seqattr(0, att_old)); + } + if (old) { + free(*old); + *old = sbuf_done(&out); + } else { + sbuf_free(&out); + } + free(att); + free(pos); + free(off); + free(chrs); +} + +void led_reset(char **old) +{ + free(*old); + *old = NULL; +} + +static int led_lastchar(char *s) +{ + char *r = *s ? strchr(s, '\0') : s; + if (r != s) + r = uc_beg(s, r - 1); + return r - s; +} + +static int led_lastword(char *s) +{ + char *r = *s ? uc_beg(s, strchr(s, '\0') - 1) : s; + int kind; + while (r > s && uc_isspace(r)) + r = uc_beg(s, r - 1); + kind = r > s ? uc_kind(r) : 0; + while (r > s && uc_kind(uc_beg(s, r - 1)) == kind) + r = uc_beg(s, r - 1); + return r - s; +} + +static void led_printparts(char *pref, char *main, char *post, int *left, int kmap, char *syn, char **old) +{ + struct sbuf ln = {0}; + int off, pos; + sbuf_str(&ln, pref); + sbuf_str(&ln, main); + off = uc_slen(sbuf_buf(&ln)); + sbuf_str(&ln, post); + pos = ren_insert(sbuf_buf(&ln), off); + if (pos >= *left + xcols) + *left = pos - xcols / 2; + if (pos < *left) + *left = pos < xcols ? 0 : pos - xcols / 2; + led_print(sbuf_buf(&ln), -1, *left, xcols, syn, old); + term_pos(-1, led_pos(dir_context(sbuf_buf(&ln)), pos, *left, *left + xcols)); + sbuf_free(&ln); + term_commit(); +} + +/* continue reading the character starting with c */ +static char *led_readchar(int c, int kmap) +{ + static char buf[8]; + int c1, c2; + int i, n; + if (c == TK_CTL('v')) { /* literal character */ + buf[0] = term_read(0); + buf[1] = '\0'; + return buf; + } + if (c == TK_CTL('k')) { /* digraph */ + c1 = term_read(0); + if (TK_INT(c1)) + return NULL; + if (c1 == TK_CTL('k')) + return ""; + c2 = term_read(0); + if (TK_INT(c2)) + return NULL; + return conf_digraph(c1, c2); + } + if ((c & 0xc0) == 0xc0) { /* utf-8 character */ + buf[0] = c; + n = uc_len(buf); + for (i = 1; i < n; i++) + buf[i] = term_read(0); + buf[n] = '\0'; + return buf; + } + return kmap_map(kmap, c); +} + +static int led_match(char *out, int len, char *kwd, char *opt) +{ + while (opt != NULL) { + int i = 0; + while (kwd[i] && kwd[i] == opt[i]) + i++; + if (kwd[i] == '\0') + break; + opt = strchr(opt, '\n') == NULL ? NULL : strchr(opt, '\n') + 1; + } + out[0] = '\0'; + if (opt != NULL) { + int i = 0; + char *beg = opt + strlen(kwd); + while (beg[i] && beg[i] != '\n' && i + 8 < len) + i += uc_len(beg + i); + memcpy(out, beg, i); + out[i] = '\0'; + return 0; + } + return 1; +} + +/* read a line from the terminal */ +static char *led_line(char *pref, char *post, int *left, int *key, int *kmap, char *syn, char *hist) +{ + struct sbuf sb = {0}; + int y, lnmode; + int c = 0; + char cmp[64] = ""; + char *cs; + char *led_old = NULL; + if (pref == NULL) + pref = ""; + if (post == NULL || !post[0]) + post = cmp; + while (1) { + if (hist != NULL) + led_match(cmp, sizeof(cmp), sbuf_buf(&sb), hist); + led_printparts(pref, sbuf_buf(&sb), post, left, *kmap, syn, &led_old); + c = term_read(0); + switch (c) { + case TK_CTL('f'): + *kmap = xkmap_alt; + continue; + case TK_CTL('e'): + *kmap = 0; + continue; + case TK_CTL('h'): + case 127: + if (sbuf_len(&sb)) + sbuf_cut(&sb, led_lastchar(sbuf_buf(&sb))); + break; + case TK_CTL('u'): + sbuf_cut(&sb, 0); + break; + case TK_CTL('w'): + if (sbuf_len(&sb)) + sbuf_cut(&sb, led_lastword(sbuf_buf(&sb))); + break; + case TK_CTL('p'): + if (reg_get(0, &lnmode)) + sbuf_str(&sb, reg_get(0, &lnmode)); + break; + case TK_CTL('r'): + y = term_read(0); + if (y > 0 && reg_get(y, &lnmode)) + sbuf_str(&sb, reg_get(y, &lnmode)); + break; + case TK_CTL('a'): + sbuf_str(&sb, cmp); + cmp[0] = '\0'; + break; + default: + if (c == '\n' || TK_INT(c)) + break; + if ((cs = led_readchar(c, *kmap)) != NULL) + sbuf_str(&sb, cs); + } + if (c == '\n') + led_printparts(pref, sbuf_buf(&sb), "", left, *kmap, syn, &led_old); + if (c == '\n' || TK_INT(c)) + break; + } + led_reset(&led_old); + *key = c; + return sbuf_done(&sb); +} + +/* read an ex command */ +char *led_prompt(char *pref, char *post, int *kmap, char *syn, char *hist) +{ + int key; + int left = 0; + char *s = led_line(pref, post, &left, &key, kmap, syn, hist); + if (key == '\n') { + struct sbuf sb = {0}; + if (pref) + sbuf_str(&sb, pref); + sbuf_str(&sb, s); + if (post) + sbuf_str(&sb, post); + free(s); + return sbuf_done(&sb); + } + free(s); + return NULL; +} diff --git a/Apps/Neatvi/main/Source/mot.c b/Apps/Neatvi/main/Source/mot.c new file mode 100644 index 0000000..63e26f5 --- /dev/null +++ b/Apps/Neatvi/main/Source/mot.c @@ -0,0 +1,224 @@ +#include +#include +#include "vi.h" + +int lbuf_indents(struct lbuf *lb, int r) +{ + char *ln = lbuf_get(lb, r); + int o; + if (!ln) + return 0; + for (o = 0; ln[0] == ' ' || ln[0] == '\t'; o++) + ln = uc_next(ln); + return o; +} + +static int uc_nextdir(char **s, char *beg, int dir) +{ + if (dir < 0) { + if (*s == beg) + return 1; + *s = uc_prev(beg, *s); + } else { + *s = uc_next(*s); + if (!(*s)[0]) + return 1; + } + return 0; +} + +int lbuf_findchar(struct lbuf *lb, char *cs, int cmd, int n, int *row, int *off) +{ + char *ln = lbuf_get(lb, *row); + char *s; + int dir = (cmd == 'f' || cmd == 't') ? +1 : -1; + if (!ln) + return 1; + if (n < 0) + dir = -dir; + if (n < 0) + n = -n; + s = uc_chr(ln, *off); + while (n > 0 && !uc_nextdir(&s, ln, dir)) + if (uc_code(s) == uc_code(cs)) + n--; + if (!n && (cmd == 't' || cmd == 'T')) + uc_nextdir(&s, ln, -dir); + if (!n) + *off = uc_off(ln, s - ln); + return n != 0; +} + +int lbuf_search(struct lbuf *lb, char *kw, int dir, int *r, int *o, int *len) +{ + int offs[2]; + int found = 0; + int r0 = *r, o0 = *o; + int i; + struct rstr *re = rstr_make(kw, xic ? RE_ICASE : 0); + if (!re) + return 1; + for (i = r0; !found && i >= 0 && i < lbuf_len(lb); i += dir) { + char *s = lbuf_get(lb, i); + int off = dir > 0 && r0 == i ? uc_chr(s, o0 + 1) - s : 0; + while (rstr_find(re, s + off, 1, offs, + off ? RE_NOTBOL : 0) >= 0) { + if (dir < 0 && r0 == i && + uc_off(s, off + offs[0]) >= o0) + break; + found = 1; + *o = uc_off(s, off + offs[0]); + *r = i; + *len = uc_off(s + off + offs[0], offs[1] - offs[0]); + off += offs[1] > offs[0] ? offs[1] : offs[1] + 1; + if (dir > 0 || !s[off] || s[off] == '\n') + break; + } + } + rstr_free(re); + return !found; +} + +int lbuf_paragraphbeg(struct lbuf *lb, int dir, int *row, int *off) +{ + while (*row >= 0 && *row < lbuf_len(lb) && !strcmp("\n", lbuf_get(lb, *row))) + *row += dir; + while (*row >= 0 && *row < lbuf_len(lb) && strcmp("\n", lbuf_get(lb, *row))) + *row += dir; + *row = MAX(0, MIN(*row, lbuf_len(lb) - 1)); + *off = 0; + return 0; +} + +int lbuf_sectionbeg(struct lbuf *lb, int dir, char *sec, int *row, int *off) +{ + struct rstr *re = rstr_make(sec, 0); + *row += dir; + while (*row >= 0 && *row < lbuf_len(lb)) { + if (rstr_find(re, lbuf_get(lb, *row), 0, NULL, 0) >= 0) + break; + *row += dir; + } + rstr_free(re); + *row = MAX(0, MIN(*row, lbuf_len(lb) - 1)); + *off = 0; + return 0; +} + +static int lbuf_lnnext(struct lbuf *lb, int dir, int *r, int *o) +{ + int off = *o + dir; + if (off < 0 || !lbuf_get(lb, *r) || off >= uc_slen(lbuf_get(lb, *r))) + return 1; + *o = off; + return 0; +} + +int lbuf_eol(struct lbuf *lb, int row) +{ + int len = lbuf_get(lb, row) ? uc_slen(lbuf_get(lb, row)) : 0; + return len ? len - 1 : 0; +} + +static int lbuf_next(struct lbuf *lb, int dir, int *r, int *o) +{ + if (dir < 0 && *r >= lbuf_len(lb)) + *r = MAX(0, lbuf_len(lb) - 1); + if (lbuf_lnnext(lb, dir, r, o)) { + if (!lbuf_get(lb, *r + dir)) + return -1; + *r += dir; + *o = dir > 0 ? 0 : lbuf_eol(lb, *r); + return 0; + } + return 0; +} + +/* return a pointer to the character at visual position c of line r */ +static char *lbuf_chr(struct lbuf *lb, int r, int c) +{ + char *ln = lbuf_get(lb, r); + return ln ? uc_chr(ln, c) : ""; +} + +/* move to the last character of the word */ +static int lbuf_wordlast(struct lbuf *lb, int kind, int dir, int *row, int *off) +{ + if (!kind || !(uc_kind(lbuf_chr(lb, *row, *off)) & kind)) + return 0; + while (uc_kind(lbuf_chr(lb, *row, *off)) & kind) + if (lbuf_next(lb, dir, row, off)) + return 1; + if (!(uc_kind(lbuf_chr(lb, *row, *off)) & kind)) + lbuf_next(lb, -dir, row, off); + return 0; +} + +int lbuf_wordbeg(struct lbuf *lb, int big, int dir, int *row, int *off) +{ + int nl; + lbuf_wordlast(lb, big ? 3 : uc_kind(lbuf_chr(lb, *row, *off)), dir, row, off); + nl = uc_code(lbuf_chr(lb, *row, *off)) == '\n'; + if (lbuf_next(lb, dir, row, off)) + return 1; + while (uc_isspace(lbuf_chr(lb, *row, *off))) { + nl += uc_code(lbuf_chr(lb, *row, *off)) == '\n'; + if (nl == 2) + return 0; + if (lbuf_next(lb, dir, row, off)) + return 1; + } + return 0; +} + +int lbuf_wordend(struct lbuf *lb, int big, int dir, int *row, int *off) +{ + int nl = 0; + if (!uc_isspace(lbuf_chr(lb, *row, *off))) { + if (lbuf_next(lb, dir, row, off)) + return 1; + nl = dir < 0 && uc_code(lbuf_chr(lb, *row, *off)) == '\n'; + } + nl += dir > 0 && uc_code(lbuf_chr(lb, *row, *off)) == '\n'; + while (uc_isspace(lbuf_chr(lb, *row, *off))) { + if (lbuf_next(lb, dir, row, off)) + return 1; + nl += uc_code(lbuf_chr(lb, *row, *off)) == '\n'; + if (nl == 2) { + if (dir < 0) + lbuf_next(lb, -dir, row, off); + return 0; + } + } + if (lbuf_wordlast(lb, big ? 3 : uc_kind(lbuf_chr(lb, *row, *off)), dir, row, off)) + return 1; + return 0; +} + +/* move to the matching character */ +int lbuf_pair(struct lbuf *lb, int *row, int *off) +{ + int r = *row, o = *off; + char *pairs = "()[]{}"; + int pchr; /* parenthesis character */ + int pidx; /* index into pairs[] */ + int dep = 1; /* parenthesis depth */ + while ((pchr = (unsigned char) lbuf_chr(lb, r, o)[0]) && !strchr(pairs, pchr)) + o++; + if (!pchr) + return 1; + pidx = strchr(pairs, pchr) - pairs; + while (!lbuf_next(lb, (pidx & 1) ? -1 : +1, &r, &o)) { + int c = (unsigned char) lbuf_chr(lb, r, o)[0]; + if (c == pairs[pidx ^ 1]) + dep--; + if (c == pairs[pidx]) + dep++; + if (!dep) { + *row = r; + *off = o; + return 0; + } + } + return 1; +} diff --git a/Apps/Neatvi/main/Source/reg.c b/Apps/Neatvi/main/Source/reg.c new file mode 100644 index 0000000..a634ad8 --- /dev/null +++ b/Apps/Neatvi/main/Source/reg.c @@ -0,0 +1,79 @@ +#include +#include +#include +#include +#include "vi.h" + +static char *bufs[256]; +static int lnmode[256]; + +static char *reg_getraw(int c, int *ln) +{ + if (ln != NULL) + *ln = lnmode[c]; + return bufs[c]; +} + +char *reg_get(int c, int *lnmode) +{ + static char ln[1024]; + static char linno[16]; + static char colno[16]; + if (c == '"') + c = 0; + if (c == ';') { + char *s = lbuf_get(xb, xrow); + snprintf(ln, sizeof(ln), "%s", s ? s : ""); + if (strchr(ln, '\n') != NULL) + *strchr(ln, '\n') = '\0'; + if (lnmode != NULL) + *lnmode = 1; + return ln; + } + if (c == ']') { + char *s = lbuf_get(xb, xrow); + if (uc_word(s, ln, sizeof(ln), xoff, "")) + ln[0] = '\0'; + return ln; + } + if (c == '#') { + snprintf(linno, sizeof(linno), "%d", xrow + 1); + return linno; + } + if (c == '^') { + snprintf(colno, sizeof(colno), "%d", xoff + 1); + return colno; + } + return reg_getraw(c, lnmode); +} + +static void reg_putraw(int c, char *s, int ln) +{ + char *pre = isupper(c) && bufs[tolower(c)] ? bufs[tolower(c)] : ""; + char *buf = malloc(strlen(pre) + strlen(s) + 1); + strcpy(buf, pre); + strcat(buf, s); + free(bufs[tolower(c)]); + bufs[tolower(c)] = buf; + lnmode[tolower(c)] = ln; +} + +void reg_put(int c, char *s, int ln) +{ + int i, i_ln; + char *i_s; + if ((ln || strchr(s, '\n')) && (!c || isalpha(c))) { + for (i = 8; i > 0; i--) + if ((i_s = reg_get('0' + i, &i_ln))) + reg_putraw('0' + i + 1, i_s, i_ln); + reg_putraw('1', s, ln); + } + reg_putraw(c, s, ln); +} + +void reg_done(void) +{ + int i; + for (i = 0; i < LEN(bufs); i++) + free(bufs[i]); +} diff --git a/Apps/Neatvi/main/Source/regex.c b/Apps/Neatvi/main/Source/regex.c new file mode 100644 index 0000000..c323c79 --- /dev/null +++ b/Apps/Neatvi/main/Source/regex.c @@ -0,0 +1,730 @@ +#include +#include +#include +#include +#include "regex.h" + +#define MAX(a, b) ((a) < (b) ? (b) : (a)) +#define LEN(a) (sizeof(a) / sizeof((a)[0])) + +/* regular expressions atoms */ +#define RA_CHR '\0' /* character literal */ +#define RA_BEG '^' /* string start */ +#define RA_END '$' /* string end */ +#define RA_ANY '.' /* any character */ +#define RA_BRK '[' /* bracket expression */ +#define RA_WBEG '<' /* word start */ +#define RA_WEND '>' /* word end */ + +/* regular expression node types */ +#define RN_ATOM '\0' /* regular expression */ +#define RN_CAT 'c' /* concatenation */ +#define RN_ALT '|' /* alternate expressions */ +#define RN_GRP '(' /* pattern group */ + +/* regular expression program instructions */ +#define RI_ATOM '\0' /* regular expression */ +#define RI_FORK 'f' /* fork the execution */ +#define RI_JUMP 'j' /* jump to the given instruction */ +#define RI_MARK 'm' /* mark the current position */ +#define RI_MATCH 'q' /* pattern or sub-pattern is matched */ + +/* regular expression atom */ +struct ratom { + int ra; /* atom type (RA_*) */ + char *s; /* atom argument */ +}; + +/* regular expression instruction */ +struct rinst { + struct ratom ra; /* regular expression atom (RI_ATOM) */ + int ri; /* instruction type (RI_*) */ + int dst; /* destination of RI_FORK, RI_JUMP */ + int mark; /* mark (RI_MARK) */ +}; + +/* regular expression program */ +struct regex { + struct rinst *p; /* the program */ + int n; /* number of instructions */ + int flg; /* regcomp() flags */ +}; + +/* regular expression matching state */ +struct rstate_saved { + int s, mark_pos, pc; /* saved rstate state */ +}; +struct rstate_mark { + int num, val; /* updated mark and its value */ +}; +struct rstate { + char *s; /* the current position in the string */ + char *o; /* the beginning of the string */ + int pc; /* program counter */ + int flg; /* flags passed to regcomp() and regexec() */ + int subcnt; /* number of groups to return */ + struct rstate_mark *mark; /* mark updates */ + int mark_pos, mark_len; /* last item in mark_num[] and mark_val[] */ + struct rstate_saved *saved; /* saved rstate states */ + int saved_pos, saved_len; /* last pushed value in past_s and past_mpos[] */ + /* before heap allocations, these buffers are used */ + struct rstate_saved _saved[128]; + struct rstate_mark _mark[128]; +}; + +static void rstate_init(struct rstate *rs, char *s, int flg, int subcnt) +{ + rs->o = s; + rs->s = s; + rs->flg = flg; + rs->mark = rs->_mark; + rs->mark_pos = 0; + rs->mark_len = LEN(rs->_mark); + rs->saved = rs->_saved; + rs->saved_pos = 0; + rs->saved_len = LEN(rs->_saved); + rs->subcnt = subcnt; +} + +static void rstate_done(struct rstate *rs) +{ + if (rs->mark != rs->_mark) + free(rs->mark); + if (rs->saved != rs->_saved) + free(rs->saved); +} + +static int rstate_push(struct rstate *rs, int pc) +{ + if (rs->saved_pos >= rs->saved_len) { + int saved_len = rs->saved_len * 2; + struct rstate_saved *saved = malloc(saved_len * sizeof(saved[0])); + if (!saved) + return 1; + memcpy(saved, rs->saved, rs->saved_len * sizeof(saved[0])); + if (rs->saved != rs->_saved) + free(rs->saved); + rs->saved = saved; + rs->saved_len = saved_len; + } + rs->saved[rs->saved_pos].s = rs->s - rs->o; + rs->saved[rs->saved_pos].mark_pos = rs->mark_pos; + rs->saved[rs->saved_pos].pc = pc; + rs->saved_pos++; + return 0; +} + +static int rstate_pop(struct rstate *rs) +{ + if (rs->saved_pos == 0) + return 1; + rs->saved_pos--; + rs->s = rs->o + rs->saved[rs->saved_pos].s; + rs->mark_pos = rs->saved[rs->saved_pos].mark_pos; + rs->pc = rs->saved[rs->saved_pos].pc; + return 0; +} + +static int rstate_mark(struct rstate *rs, int mark) +{ + if (mark >= rs->subcnt * 2) + return 0; + if (rs->mark_pos >= rs->mark_len) { + int mark_len = rs->mark_len * 2; + struct rstate_mark *mark = malloc(mark_len * sizeof(mark[0])); + if (!mark) + return 1; + memcpy(mark, rs->mark, rs->mark_len * sizeof(mark[0])); + if (rs->mark != rs->_mark) + free(rs->mark); + rs->mark = mark; + rs->mark_len = mark_len; + } + rs->mark[rs->mark_pos].num = mark; + rs->mark[rs->mark_pos].val = rs->s - rs->o; + rs->mark_pos++; + return 0; +} + +static void rstate_marks(struct rstate *rs, regmatch_t sub[]) +{ + int i; + for (i = 0; i < rs->mark_pos; i++) { + int mark = rs->mark[i].num; + if (mark & 1) + sub[mark >> 1].rm_eo = rs->mark[i].val; + else + sub[mark >> 1].rm_so = rs->mark[i].val; + } +} + +/* regular expression tree; used for parsing */ +struct rnode { + struct ratom ra; /* regular expression atom (RN_ATOM) */ + struct rnode *c1, *c2; /* children */ + int mincnt, maxcnt; /* number of repetitions */ + int grp; /* group number */ + int rn; /* node type (RN_*) */ +}; + +static struct rnode *rnode_make(int rn, struct rnode *c1, struct rnode *c2) +{ + struct rnode *rnode = malloc(sizeof(*rnode)); + memset(rnode, 0, sizeof(*rnode)); + rnode->rn = rn; + rnode->c1 = c1; + rnode->c2 = c2; + rnode->mincnt = 1; + rnode->maxcnt = 1; + return rnode; +} + +static void rnode_free(struct rnode *rnode) +{ + if (rnode->c1) + rnode_free(rnode->c1); + if (rnode->c2) + rnode_free(rnode->c2); + free(rnode->ra.s); + free(rnode); +} + +static int uc_len(char *s) +{ + int c = (unsigned char) s[0]; + if (~c & 0xc0 || !s[1]) /* ASCII or invalid */ + return c > 0; + if (~c & 0x20 || !s[2]) + return 2; + if (~c & 0x10 || !s[3]) + return 3; + if (~c & 0x08) + return 4; + return 1; +} + +static int uc_dec(char *s) +{ + int c = (unsigned char) s[0]; + if (~c & 0xc0 || !s[1]) /* ASCII or invalid */ + return c; + if (~c & 0x20 || !s[2]) + return ((c & 0x1f) << 6) | (s[1] & 0x3f); + if (~c & 0x10 || !s[3]) + return ((c & 0x0f) << 12) | ((s[1] & 0x3f) << 6) | (s[2] & 0x3f); + if (~c & 0x08) + return ((c & 0x07) << 18) | ((s[1] & 0x3f) << 12) | ((s[2] & 0x3f) << 6) | (s[3] & 0x3f); + return c; +} + +static void ratom_copy(struct ratom *dst, struct ratom *src) +{ + dst->ra = src->ra; + dst->s = NULL; + if (src->s) { + int len = strlen(src->s); + dst->s = malloc(len + 1); + memcpy(dst->s, src->s, len + 1); + } +} + +static int brk_len(char *s) +{ + int n = 1; + if (s[n] == '^') /* exclusion mark */ + n++; + if (s[n] == ']') /* handling []a] */ + n++; + while (s[n] && s[n] != ']') { + if (s[n] == '[' && (s[n + 1] == ':' || s[n + 1] == '=')) + while (s[n] && s[n] != ']') + n++; + if (s[n]) + n++; + } + return s[n] == ']' ? n + 1 : n; +} + +static void ratom_readbrk(struct ratom *ra, char **pat) +{ + int len = brk_len(*pat); + ra->ra = RA_BRK; + ra->s = malloc(len + 1); + memcpy(ra->s, *pat, len); + ra->s[len] = '\0'; + *pat += len; +} + +static void ratom_read(struct ratom *ra, char **pat) +{ + char *s; + int len; + switch ((unsigned char) **pat) { + case '.': + ra->ra = RA_ANY; + (*pat)++; + break; + case '^': + ra->ra = RA_BEG; + (*pat)++; + break; + case '$': + ra->ra = RA_END; + (*pat)++; + break; + case '[': + ratom_readbrk(ra, pat); + break; + case '\\': + if ((*pat)[1] == '<' || (*pat)[1] == '>') { + ra->ra = (*pat)[1] == '<' ? RA_WBEG : RA_WEND; + *pat += 2; + break; + } + (*pat)++; + default: + ra->ra = RA_CHR; + s = *pat; + while ((s == *pat) || !strchr(".^$[(|)*?+{\\", (unsigned char) s[0])) { + int l = uc_len(s); + if (s != *pat && s[l] != '\0' && strchr("*?+{", (unsigned char) s[l])) + break; + s += uc_len(s); + } + len = s - *pat; + ra->s = malloc(len + 1); + memcpy(ra->s, *pat, len); + ra->s[len] = '\0'; + *pat += len; + } +} + +static char *uc_beg(char *beg, char *s) +{ + while (s > beg && (((unsigned char) *s) & 0xc0) == 0x80) + s--; + return s; +} + +static int isword(char *s) +{ + int c = (unsigned char) s[0]; + return isalnum(c) || c == '_' || c > 127; +} + +static char *brk_classes[][2] = { + {":alnum:", "a-zA-Z0-9"}, + {":alpha:", "a-zA-Z"}, + {":blank:", " \t"}, + {":digit:", "0-9"}, + {":lower:", "a-z"}, + {":print:", "\x20-\x7e"}, + {":punct:", "][!\"#$%&'()*+,./:;<=>?@\\^_`{|}~-"}, + {":space:", " \t\r\n\v\f"}, + {":upper:", "A-Z"}, + {":word:", "a-zA-Z0-9_"}, + {":xdigit:", "a-fA-F0-9"}, +}; + +static int brk_match(char *brk, int c, int flg) +{ + int beg, end; + int i; + int not = brk[0] == '^'; + char *p = not ? brk + 1 : brk; + char *p0 = p; + if (flg & REG_ICASE && c < 128 && isupper(c)) + c = tolower(c); + while (*p && (p == p0 || *p != ']')) { + if (p[0] == '[' && p[1] == ':') { + for (i = 0; i < LEN(brk_classes); i++) { + char *cc = brk_classes[i][0]; + char *cp = brk_classes[i][1]; + if (!strncmp(cc, p + 1, strlen(cc))) + if (!brk_match(cp, c, flg)) + return not; + } + p += brk_len(p); + continue; + } + beg = uc_dec(p); + p += uc_len(p); + end = beg; + if (p[0] == '-' && p[1] && p[1] != ']') { + p++; + end = uc_dec(p); + p += uc_len(p); + } + if (flg & REG_ICASE && beg < 128 && isupper(beg)) + beg = tolower(beg); + if (flg & REG_ICASE && end < 128 && isupper(end)) + end = tolower(end); + if (c >= beg && c <= end) + return not; + } + return !not; +} + +static int ratom_match(struct ratom *ra, struct rstate *rs) +{ + if (ra->ra == RA_CHR && !(rs->flg & REG_ICASE)) { + char *s = ra->s; + char *r = rs->s; + while (*s && *s == *r) + s++, r++; + if (*s) + return 1; + rs->s = r; + return 0; + } + if (ra->ra == RA_CHR) { + int pos = 0; + while (ra->s[pos]) { + int c1 = uc_dec(ra->s + pos); + int c2 = uc_dec(rs->s + pos); + if (rs->flg & REG_ICASE && c1 < 128 && isupper(c1)) + c1 = tolower(c1); + if (rs->flg & REG_ICASE && c2 < 128 && isupper(c2)) + c2 = tolower(c2); + if (c1 != c2) + return 1; + pos += uc_len(ra->s + pos); + } + rs->s += pos; + return 0; + } + if (ra->ra == RA_ANY) { + if (!rs->s[0] || (rs->s[0] == '\n' && !!(rs->flg & REG_NEWLINE))) + return 1; + rs->s += uc_len(rs->s); + return 0; + } + if (ra->ra == RA_BRK) { + int c = uc_dec(rs->s); + if (!c || (c == '\n' && !!(rs->flg & REG_NEWLINE) && ra->s[1] == '^')) + return 1; + rs->s += uc_len(rs->s); + return brk_match(ra->s + 1, c, rs->flg); + } + if (ra->ra == RA_BEG && rs->s == rs->o) + return !!(rs->flg & REG_NOTBOL); + if (ra->ra == RA_BEG && rs->s > rs->o && rs->s[-1] == '\n') + return !(rs->flg & REG_NEWLINE); + if (ra->ra == RA_END && rs->s[0] == '\0') + return !!(rs->flg & REG_NOTEOL); + if (ra->ra == RA_END && rs->s[0] == '\n') + return !(rs->flg & REG_NEWLINE); + if (ra->ra == RA_WBEG) + return !((rs->s == rs->o || !isword(uc_beg(rs->o, rs->s - 1))) && + isword(rs->s)); + if (ra->ra == RA_WEND) + return !(rs->s != rs->o && isword(uc_beg(rs->o, rs->s - 1)) && + (!rs->s[0] || !isword(rs->s))); + return 1; +} + +static struct rnode *rnode_parse(char **pat); + +static struct rnode *rnode_grp(char **pat) +{ + struct rnode *rnode = NULL; + if ((*pat)[0] != '(') + return NULL; + ++*pat; + if ((*pat)[0] != ')') { + rnode = rnode_parse(pat); + if (!rnode) + return NULL; + } + if ((*pat)[0] != ')') { + rnode_free(rnode); + return NULL; + } + ++*pat; + return rnode_make(RN_GRP, rnode, NULL); +} + +static struct rnode *rnode_atom(char **pat) +{ + struct rnode *rnode; + if (!**pat) + return NULL; + if ((*pat)[0] == '|' || (*pat)[0] == ')') + return NULL; + if ((*pat)[0] == '(') { + rnode = rnode_grp(pat); + } else { + rnode = rnode_make(RN_ATOM, NULL, NULL); + ratom_read(&rnode->ra, pat); + } + if (!rnode) + return NULL; + if ((*pat)[0] == '*' || (*pat)[0] == '?') { + rnode->mincnt = 0; + rnode->maxcnt = (*pat)[0] == '*' ? -1 : 1; + ++*pat; + } + if ((*pat)[0] == '+') { + rnode->mincnt = 1; + rnode->maxcnt = -1; + ++*pat; + } + if ((*pat)[0] == '{') { + rnode->mincnt = 0; + rnode->maxcnt = 0; + ++*pat; + while (isdigit((unsigned char) **pat)) + rnode->mincnt = rnode->mincnt * 10 + *(*pat)++ - '0'; + if (**pat == ',') { + (*pat)++; + if ((*pat)[0] == '}') + rnode->maxcnt = -1; + while (isdigit((unsigned char) **pat)) + rnode->maxcnt = rnode->maxcnt * 10 + *(*pat)++ - '0'; + } else { + rnode->maxcnt = rnode->mincnt; + } + ++*pat; + } + return rnode; +} + +static struct rnode *rnode_seq(char **pat) +{ + struct rnode *c1 = rnode_atom(pat); + struct rnode *c2; + if (!c1) + return NULL; + c2 = rnode_seq(pat); + return c2 ? rnode_make(RN_CAT, c1, c2) : c1; +} + +static struct rnode *rnode_parse(char **pat) +{ + struct rnode *c1 = rnode_seq(pat); + struct rnode *c2; + if ((*pat)[0] != '|') + return c1; + ++*pat; + c2 = rnode_parse(pat); + return rnode_make(RN_ALT, c1, c2); +} + +static int rnode_count(struct rnode *rnode) +{ + int n = 1; + if (!rnode) + return 0; + if (rnode->rn == RN_CAT) + n = rnode_count(rnode->c1) + rnode_count(rnode->c2); + if (rnode->rn == RN_ALT) + n = rnode_count(rnode->c1) + rnode_count(rnode->c2) + 2; + if (rnode->rn == RN_GRP) + n = rnode_count(rnode->c1) + 2; + if (rnode->mincnt == 0 && rnode->maxcnt == 0) + return 0; + if (rnode->mincnt == 1 && rnode->maxcnt == 1) + return n; + if (rnode->maxcnt < 0) { + n = (rnode->mincnt + 1) * n + 2; + } else { + n = (rnode->mincnt + rnode->maxcnt) * n + + rnode->maxcnt - rnode->mincnt; + } + if (!rnode->mincnt) + n++; + return n; +} + +static int rnode_grpnum(struct rnode *rnode, int num) +{ + int cur = 0; + if (!rnode) + return 0; + if (rnode->rn == RN_GRP) + rnode->grp = num + cur++; + cur += rnode_grpnum(rnode->c1, num + cur); + cur += rnode_grpnum(rnode->c2, num + cur); + return cur; +} + +static int re_insert(struct regex *p, int ri) +{ + p->p[p->n++].ri = ri; + return p->n - 1; +} + +static void rnode_emit(struct rnode *n, struct regex *p); + +static void rnode_emitnorep(struct rnode *n, struct regex *p) +{ + int fork, done, mark; + if (n->rn == RN_ALT) { + fork = re_insert(p, RI_FORK); + rnode_emit(n->c1, p); + done = re_insert(p, RI_JUMP); + p->p[fork].dst = p->n; + rnode_emit(n->c2, p); + p->p[done].dst = p->n; + } + if (n->rn == RN_CAT) { + rnode_emit(n->c1, p); + rnode_emit(n->c2, p); + } + if (n->rn == RN_GRP) { + mark = re_insert(p, RI_MARK); + p->p[mark].mark = 2 * n->grp; + rnode_emit(n->c1, p); + mark = re_insert(p, RI_MARK); + p->p[mark].mark = 2 * n->grp + 1; + } + if (n->rn == RN_ATOM) { + int atom = re_insert(p, RI_ATOM); + ratom_copy(&p->p[atom].ra, &n->ra); + } +} + +static void rnode_emit(struct rnode *n, struct regex *p) +{ + int jump = -1; /* the last jump to repetition end */ + int i; + if (!n) + return; + if (n->mincnt == 0 && n->maxcnt == 0) + return; + if (n->mincnt == 1 && n->maxcnt == 1) { + rnode_emitnorep(n, p); + return; + } + for (i = 0; i < n->mincnt; i++) + rnode_emitnorep(n, p); + for (i = n->mincnt; i < n->maxcnt; i++) { + int fork = re_insert(p, RI_FORK); + p->p[fork].dst = jump; + jump = fork; + rnode_emitnorep(n, p); + } + while (jump >= 0) { + int prev = p->p[jump].dst; + p->p[jump].dst = p->n; + jump = prev; + } + if (n->maxcnt < 0) { + int fork = re_insert(p, RI_FORK); + rnode_emitnorep(n, p); + jump = re_insert(p, RI_JUMP); + p->p[jump].dst = fork; + p->p[fork].dst = p->n; + } +} + +int regcomp(regex_t *preg, char *pat, int flg) +{ + struct rnode *rnode = rnode_parse(&pat); + struct regex *re; + int n = rnode_count(rnode) + 3; + int mark; + if (!rnode) + return 1; + rnode_grpnum(rnode, 1); + re = malloc(sizeof(*re)); + memset(re, 0, sizeof(*re)); + re->p = malloc(n * sizeof(re->p[0])); + memset(re->p, 0, n * sizeof(re->p[0])); + mark = re_insert(re, RI_MARK); + re->p[mark].mark = 0; + rnode_emit(rnode, re); + mark = re_insert(re, RI_MARK); + re->p[mark].mark = 1; + mark = re_insert(re, RI_MATCH); + rnode_free(rnode); + re->flg = flg; + *preg = re; + return 0; +} + +void regfree(regex_t *preg) +{ + struct regex *re = *preg; + int i; + for (i = 0; i < re->n; i++) + if (re->p[i].ri == RI_ATOM) + free(re->p[i].ra.s); + free(re->p); + free(re); +} + +static int re_rec(struct regex *re, struct rstate *rs) +{ + struct rinst *ri = NULL; + while (1) { + ri = &re->p[rs->pc]; + if (ri->ri == RI_ATOM) { + if (!ratom_match(&ri->ra, rs)) { + rs->pc++; + } else if (rstate_pop(rs)) { + return 1; + } + continue; + } + if (ri->ri == RI_MARK) { + rstate_mark(rs, ri->mark); + rs->pc++; + continue; + } + if (ri->ri == RI_JUMP) { + rs->pc = ri->dst; + continue; + } + if (ri->ri == RI_FORK) { + if (rstate_push(rs, ri->dst)) + return 1; + rs->pc++; + continue; + } + if (ri->ri == RI_MATCH) + return 0; + if (rstate_pop(rs)) + break; + } + return 1; +} + +static int re_recmatch(struct regex *re, struct rstate *rs) +{ + rs->pc = 0; + rs->mark_pos = 0; + rs->saved_pos = 0; + if (!re_rec(re, rs)) + return 0; + return 1; +} + +int regexec(regex_t *preg, char *s, int nsub, regmatch_t psub[], int flg) +{ + struct regex *re = *preg; + struct rstate rs; + char *o = s; + int i; + rstate_init(&rs, s, re->flg | flg, flg & REG_NOSUB ? 0 : nsub); + for (i = 0; i < nsub; i++) { + psub[i].rm_so = -1; + psub[i].rm_eo = -1; + } + while (*o && !((flg & REG_EOLSTOP) && o != rs.o && *o == '\n')) { + rs.s = o = s; + s += uc_len(s); + if (!re_recmatch(re, &rs)) { + rstate_marks(&rs, psub); + rstate_done(&rs); + return 0; + } + } + rstate_done(&rs); + return 1; +} + +int regerror(int errcode, regex_t *preg, char *errbuf, int errbuf_size) +{ + return 0; +} diff --git a/Apps/Neatvi/main/Source/regex.h b/Apps/Neatvi/main/Source/regex.h new file mode 100644 index 0000000..0b53091 --- /dev/null +++ b/Apps/Neatvi/main/Source/regex.h @@ -0,0 +1,19 @@ +#define REG_EXTENDED 0x01 +#define REG_NOSUB 0x02 +#define REG_ICASE 0x04 +#define REG_NEWLINE 0x08 +#define REG_NOTBOL 0x10 +#define REG_NOTEOL 0x20 +#define REG_EOLSTOP 0x40 + +typedef struct { + long rm_so; + long rm_eo; +} regmatch_t; + +typedef struct regex *regex_t; + +int regcomp(regex_t *preg, char *regex, int cflags); +int regexec(regex_t *preg, char *str, int nmatch, regmatch_t pmatch[], int eflags); +int regerror(int errcode, regex_t *preg, char *errbuf, int errbuf_size); +void regfree(regex_t *preg); diff --git a/Apps/Neatvi/main/Source/ren.c b/Apps/Neatvi/main/Source/ren.c new file mode 100644 index 0000000..d71fff2 --- /dev/null +++ b/Apps/Neatvi/main/Source/ren.c @@ -0,0 +1,184 @@ +/* rendering strings */ +#include +#include +#include +#include +#include "vi.h" + +/* specify the screen position of the characters in s; reordering version */ +static int *ren_position_reorder(char *s, int n) +{ + int i, cnt; + char **chrs = uc_chop(s, &cnt); + int *off, *pos; + int cpos = 0; + pos = malloc((n + 1) * sizeof(pos[0])); + for (i = 0; i < n; i++) + pos[i] = i; + if (xorder) + dir_reorder(s, pos); + off = malloc(n * sizeof(off[0])); + for (i = 0; i < n; i++) + off[pos[i]] = i; + for (i = 0; i < n; i++) { + pos[off[i]] = cpos; + cpos += ren_cwid(chrs[off[i]], cpos); + } + pos[n] = cpos; + free(chrs); + free(off); + return pos; +} + +/* specify the screen position of the characters in s; fast version */ +int *ren_position(char *s, int n) +{ + int cpos = 0; + int *pos; + int i; + if (n <= xlim && (xorder == 2 || (xorder == 1 && (n < strlen(s) || dir_context(s) < 0)))) + return ren_position_reorder(s, n); + pos = malloc((n + 1) * sizeof(pos[0])); + for (i = 0; i < n; i++, s += uc_len(s)) { + pos[i] = cpos; + cpos += ren_cwid(s, cpos); + } + pos[i] = cpos; + return pos; +} + +int ren_wid(char *s) +{ + int n = uc_slen(s); + int *pos = ren_position(s, n); + int ret = pos[n]; + free(pos); + return ret; +} + +/* find the next character after visual position p; if cur, start from p itself */ +static int pos_next(int *pos, int n, int p, int cur) +{ + int i, ret = -1; + for (i = 0; i < n; i++) + if (pos[i] - !cur >= p && (ret < 0 || pos[i] < pos[ret])) + ret = i; + return ret >= 0 ? pos[ret] : -1; +} + +/* find the previous character after visual position p; if cur, start from p itself */ +static int pos_prev(int *pos, int n, int p, int cur) +{ + int i, ret = -1; + for (i = 0; i < n; i++) + if (pos[i] + !cur <= p && (ret < 0 || pos[i] > pos[ret])) + ret = i; + return ret >= 0 ? pos[ret] : -1; +} + +/* convert character offset to visual position */ +int ren_pos(char *s, int off) +{ + int n = uc_slen(s); + int *pos = ren_position(s, n); + int ret = off < n ? pos[off] : 0; + free(pos); + return ret; +} + +/* convert visual position to character offset */ +int ren_off(char *s, int p) +{ + int off = -1; + int n = uc_slen(s); + int *pos = ren_position(s, n); + int i; + p = pos_prev(pos, n, p, 1); + for (i = 0; i < n; i++) + if (pos[i] == p) + off = i; + free(pos); + return off >= 0 ? off : 0; +} + +/* adjust cursor position */ +int ren_cursor(char *s, int p) +{ + int n; + int *pos; + if (!s || !p) + return 0; + n = uc_slen(s); + pos = ren_position(s, n); + p = pos_prev(pos, n, p, 1); + if (uc_code(uc_chr(s, ren_off(s, p))) == '\n') + p = pos_prev(pos, n, p, 0); + free(pos); + return p >= 0 ? p : 0; +} + +/* obtain cursor position when inserting a character before offset */ +int ren_insert(char *ln, int off) +{ + struct sbuf sb = {0}; + char *cur; + int *pos; + int ret, n; + if (off == 0) + return 0; + if (!(cur = uc_chr(ln, off - 1))) + cur = uc_chr(ln, -1); + sbuf_mem(&sb, ln, cur - ln); + sbuf_mem(&sb, cur, uc_len(cur)); + sbuf_str(&sb, cur); + n = uc_slen(sbuf_buf(&sb)); + pos = ren_position(sbuf_buf(&sb), n); + off = off > n ? n : off; + ret = off > 0 ? pos[off] - (pos[off] < pos[off - 1]) : 0; + sbuf_free(&sb); + free(pos); + return ret; +} + +/* return an offset before EOL */ +int ren_noeol(char *s, int o) +{ + int i = 0; + if (!s) + return 0; + for (; i < o && *s; i++) + s = uc_next(s); + return i > 0 && (!*s || *s == '\n') ? i - 1 : i; +} + +/* the position of the next character */ +int ren_next(char *s, int p, int dir) +{ + int n = uc_slen(s); + int *pos = ren_position(s, n); + p = pos_prev(pos, n, p, 1); + if (dir >= 0) + p = pos_next(pos, n, p, 0); + else + p = pos_prev(pos, n, p, 0); + free(pos); + return s && uc_chr(s, ren_off(s, p))[0] != '\n' ? p : -1; +} + +int ren_cwid(char *s, int pos) +{ + int wid; + if (s[0] == '\t') { + int ts = xts > 0 ? xts : 8; + return ts - (pos % ts); + } + if (mapch_get(s, &wid)) + return wid; + return uc_wid(s); +} + +char *ren_translate(char *s, char *ln) +{ + char *p = s[0] != '\t' ? mapch_get(s, NULL) : NULL; + return p || !xshape ? p : uc_shape(ln, s); +} diff --git a/Apps/Neatvi/main/Source/rset.c b/Apps/Neatvi/main/Source/rset.c new file mode 100644 index 0000000..9aa90ed --- /dev/null +++ b/Apps/Neatvi/main/Source/rset.c @@ -0,0 +1,146 @@ +#include +#include +#include +#include "regex.h" +#include "vi.h" + +/* regular expression set */ +struct rset { + regex_t regex; /* the combined regular expression */ + int n; /* number of regular expressions in this set */ + int *grp; /* the group assigned to each subgroup */ + int *setgrpcnt; /* number of groups in each regular expression */ + int grpcnt; /* group count */ +}; + +static int re_groupcount(char *s) +{ + int n = 0; /* number of groups */ + int brk = 0; /* one if inside a bracket expression */ + int brk2 = 0; /* nested bracket type: ':', '*', or '=' */ + while (*s) { + if (!brk) { + if (s[0] == '(') + n++; + if (s[0] == '\\' && s[1]) { + s++; + } else if (s[0] == '[' && s[1] && s[2]) { + s += s[1] == '^' ? 2 : 1; + brk = 1; + } + } else { + if (!brk2) { + if (s[0] == ']') + brk = 0; + if (s[0] == '[' && (s[1] == ':' || s[1] == '*' || s[1] == '=')) { + brk2 = s[1]; + s++; + } + } else if (s[0] == brk2 && s[1] == ']') { + brk2 = 0; + s++; + } + } + s++; + } + return n; +} + +struct rset *rset_make(int n, char **re, int flg) +{ + struct rset *rs = malloc(sizeof(*rs)); + struct sbuf sb = {0}; + int regex_flg = REG_EXTENDED | (flg & RE_ICASE ? REG_ICASE : 0); + int i; + memset(rs, 0, sizeof(*rs)); + rs->grp = malloc((n + 1) * sizeof(rs->grp[0])); + rs->setgrpcnt = malloc((n + 1) * sizeof(rs->setgrpcnt[0])); + rs->grpcnt = 2; + rs->n = n; + sbuf_chr(&sb, '('); + for (i = 0; i < n; i++) { + if (!re[i]) { + rs->grp[i] = -1; + rs->setgrpcnt[i] = 0; + continue; + } + if (sbuf_len(&sb) > 1) + sbuf_chr(&sb, '|'); + sbuf_chr(&sb, '('); + sbuf_str(&sb, re[i]); + sbuf_chr(&sb, ')'); + rs->grp[i] = rs->grpcnt; + rs->setgrpcnt[i] = re_groupcount(re[i]); + rs->grpcnt += 1 + rs->setgrpcnt[i]; + } + rs->grp[n] = rs->grpcnt; + sbuf_chr(&sb, ')'); + if (regcomp(&rs->regex, sbuf_buf(&sb), regex_flg)) { + free(rs->grp); + free(rs->setgrpcnt); + free(rs); + sbuf_free(&sb); + return NULL; + } + sbuf_free(&sb); + return rs; +} + +/* return the index of the matching regular expression or -1 if none matches */ +int rset_find(struct rset *rs, char *s, int n, int *grps, int flg) +{ + regmatch_t *subs; + int found, i, set = -1; + int regex_flg = REG_NEWLINE | REG_EOLSTOP; + if (rs->grpcnt <= 2) + return -1; + if (flg & RE_NOTBOL) + regex_flg |= REG_NOTBOL; + if (flg & RE_NOTEOL) + regex_flg |= REG_NOTEOL; + subs = malloc(rs->grpcnt * sizeof(subs[0])); + found = !regexec(&rs->regex, s, rs->grpcnt, subs, regex_flg); + for (i = 0; found && i < rs->n; i++) + if (rs->grp[i] >= 0 && subs[rs->grp[i]].rm_so >= 0) + set = i; + if (found && set >= 0) { + for (i = 0; i < n; i++) { + int grp = rs->grp[set] + i; + if (i < rs->setgrpcnt[set] + 1) { + grps[i * 2] = subs[grp].rm_so; + grps[i * 2 + 1] = subs[grp].rm_eo; + } else { + grps[i * 2 + 0] = -1; + grps[i * 2 + 1] = -1; + } + } + } + free(subs); + return set; +} + +void rset_free(struct rset *rs) +{ + regfree(&rs->regex); + free(rs->setgrpcnt); + free(rs->grp); + free(rs); +} + +/* read a regular expression enclosed in a delimiter */ +char *re_read(char **src) +{ + struct sbuf sb = {0}; + char *s = *src; + int delim = (unsigned char) *s++; + if (!delim) + return NULL; + while (*s && *s != delim) { + if (s[0] == '\\' && s[1]) + if (*(++s) != delim) + sbuf_chr(&sb, '\\'); + sbuf_chr(&sb, (unsigned char) *s++); + } + *src = *s ? s + 1 : s; + return sbuf_done(&sb); +} diff --git a/Apps/Neatvi/main/Source/rstr.c b/Apps/Neatvi/main/Source/rstr.c new file mode 100644 index 0000000..5f6aa09 --- /dev/null +++ b/Apps/Neatvi/main/Source/rstr.c @@ -0,0 +1,118 @@ +#include +#include +#include +#include +#include "vi.h" + +struct rstr { + struct rset *rs; /* only for regex patterns */ + char *str; /* for simple, non-regex patterns */ + int icase; /* ignore case */ + int lbeg, lend; /* match line beg/end */ + int wbeg, wend; /* match word beg/end */ +}; + +/* return zero if a simple pattern is given */ +static int rstr_simple(struct rstr *rs, char *re) +{ + char *beg; + char *end; + rs->lbeg = re[0] == '^'; + if (rs->lbeg) + re++; + rs->wbeg = re[0] == '\\' && re[1] == '<'; + if (rs->wbeg) + re += 2; + beg = re; + while (re[0] && !strchr("\\.*+?|[]{}()$", (unsigned char) re[0])) + re++; + end = re; + rs->wend = re[0] == '\\' && re[1] == '>'; + if (rs->wend) + re += 2; + rs->lend = re[0] == '$'; + if (rs->lend) + re++; + if (!re[0]) { + int len = end - beg; + rs->str = malloc(len + 1); + memcpy(rs->str, beg, len); + rs->str[len] = '\0'; + return 0; + } + return 1; +} + +struct rstr *rstr_make(char *re, int flg) +{ + struct rstr *rs = malloc(sizeof(*rs)); + memset(rs, 0, sizeof(*rs)); + rs->icase = flg & RE_ICASE; + if (rstr_simple(rs, re)) + rs->rs = rset_make(1, &re, flg); + if (!rs->rs && !rs->str) { + free(rs); + return NULL; + } + return rs; +} + +static int isword(char *s) +{ + int c = (unsigned char) s[0]; + return isalnum(c) || c == '_' || c > 127; +} + +static int match_case(char *s, char *r, int icase) +{ + for (; *r && *s; s++, r++) { + if (!icase && *s != *r) + return 1; + if (icase && tolower((unsigned char) *s) != tolower((unsigned char) *r)) + return 1; + } + return *r; +} + +/* return zero if an occurrence is found */ +int rstr_find(struct rstr *rs, char *s, int n, int *grps, int flg) +{ + int len; + char *beg, *end; + char *r; + if (rs->rs) + return rset_find(rs->rs, s, n, grps, flg); + if ((rs->lbeg && (flg & RE_NOTBOL)) || (rs->lend && (flg & RE_NOTEOL))) + return -1; + len = strlen(rs->str); + beg = s; + end = s + strlen(s) - len - 1; + if (end < beg) + return -1; + if (rs->lend) + beg = end; + if (rs->lbeg) + end = s; + for (r = beg; r <= end; r++) { + if (rs->wbeg && r > s && (isword(r - 1) || !isword(r))) + continue; + if (rs->wend && r[len] && (!isword(r + len - 1) || isword(r + len))) + continue; + if (!match_case(r, rs->str, rs->icase)) { + if (n >= 1) { + grps[0] = r - s; + grps[1] = r - s + len; + } + return 0; + } + } + return -1; +} + +void rstr_free(struct rstr *rs) +{ + if (rs->rs) + rset_free(rs->rs); + free(rs->str); + free(rs); +} diff --git a/Apps/Neatvi/main/Source/sbuf.c b/Apps/Neatvi/main/Source/sbuf.c new file mode 100644 index 0000000..08dee20 --- /dev/null +++ b/Apps/Neatvi/main/Source/sbuf.c @@ -0,0 +1,95 @@ +/* variable length string buffer */ +#include +#include +#include +#include +#include "vi.h" + +#define SBUFSZ 128 +#define ALIGN(n, a) (((n) + (a) - 1) & ~((a) - 1)) +#define NEXTSZ(o, r) ALIGN(MAX((o) * 2, (o) + (r)), SBUFSZ) + +static int sbuf_extend(struct sbuf *sbuf, long newsz) +{ + char *s; + if (sbuf->s && !sbuf->owns) + return 1; + if (!(s = malloc(newsz))) + return 1; + if (sbuf->s_n) + memcpy(s, sbuf->s, sbuf->s_n); + free(sbuf->s); + sbuf->s_sz = newsz; + sbuf->s = s; + sbuf->owns = 1; + return 0; +} + +char *sbuf_buf(struct sbuf *sb) +{ + if (!sb->s && sbuf_extend(sb, 1)) + return NULL; + sb->s[sb->s_n] = '\0'; + return sb->s; +} + +char *sbuf_done(struct sbuf *sb) +{ + char *res = sbuf_buf(sb); + memset(sb, 0, sizeof(*sb)); + return res; +} + +void sbuf_free(struct sbuf *sb) +{ + if (sb->owns) + free(sb->s); + memset(sb, 0, sizeof(*sb)); +} + +int sbuf_chr(struct sbuf *sbuf, int c) +{ + if (sbuf->s_n + 2 >= sbuf->s_sz) { + if (sbuf_extend(sbuf, NEXTSZ(sbuf->s_sz, 1))) + return 1; + } + sbuf->s[sbuf->s_n++] = c; + return 0; +} + +int sbuf_mem(struct sbuf *sbuf, void *s, long len) +{ + if (sbuf->s_n + len + 1 >= sbuf->s_sz) { + if (sbuf_extend(sbuf, NEXTSZ(sbuf->s_sz, len + 1))) + return 1; + } + memcpy(sbuf->s + sbuf->s_n, s, len); + sbuf->s_n += len; + return 0; +} + +int sbuf_str(struct sbuf *sbuf, char *s) +{ + return sbuf_mem(sbuf, s, strlen(s)); +} + +long sbuf_len(struct sbuf *sbuf) +{ + return sbuf->s_n; +} + +void sbuf_cut(struct sbuf *sb, long len) +{ + if (sb->s_n > len) + sb->s_n = len; +} + +int sbuf_printf(struct sbuf *sbuf, char *s, ...) +{ + char buf[256]; + va_list ap; + va_start(ap, s); + vsnprintf(buf, sizeof(buf), s, ap); + va_end(ap); + return sbuf_str(sbuf, buf); +} diff --git a/Apps/Neatvi/main/Source/syn.c b/Apps/Neatvi/main/Source/syn.c new file mode 100644 index 0000000..cec44ab --- /dev/null +++ b/Apps/Neatvi/main/Source/syn.c @@ -0,0 +1,145 @@ +#include +#include +#include +#include "vi.h" + +#define NFTS 32 + +/* mapping filetypes to regular expression sets */ +static struct ftmap { + char ft[32]; + struct rset *rs; +} ftmap[NFTS]; + +static struct rset *syn_ftrs; +static int syn_ctx1, syn_ctx2; + +static struct rset *syn_find(char *ft) +{ + int i; + for (i = 0; i < LEN(ftmap); i++) + if (!strcmp(ft, ftmap[i].ft)) + return ftmap[i].rs; + return NULL; +} + +static struct rset *syn_make(char *name) +{ + char *pats[256] = {NULL}; + char *ft, *pat; + int i; + int n = 0; + if (name == NULL || !name[0]) + return NULL; + for (i = 0; !conf_highlight(i, &ft, NULL, &pat, NULL) && i < LEN(pats); i++) + if (!strcmp(ft, name)) + pats[i] = pat; + n = i; + for (i = 0; i < LEN(ftmap); i++) { + if (!ftmap[i].ft[0]) { + strcpy(ftmap[i].ft, name); + ftmap[i].rs = rset_make(n, pats, 0); + return ftmap[i].rs; + } + } + return NULL; +} + +int syn_merge(int old, int new) +{ + int fg = SYN_FGSET(new) ? SYN_FG(new) : SYN_FG(old); + int bg = SYN_BGSET(new) ? SYN_BG(new) : SYN_BG(old); + if (SYN_RANK(old) > SYN_RANK(new)) + return syn_merge(new, old); + return ((old | new) & SYN_FLG) | (bg << 8) | fg; +} + +void syn_context(int ctx1, int ctx2) +{ + syn_ctx1 = conf_hl(ctx1); + syn_ctx2 = conf_hl(ctx2); +} + +int *syn_highlight(char *ft, char *s) +{ + int subs[16 * 2]; + int n = uc_slen(s); + int *att = malloc(n * sizeof(att[0])); + int soff = 0; + struct rset *rs = syn_find(ft); + int flg = 0; + int hl, j, i; + if (!strcmp(ft, "___")) { + for (i = 0; i < n; i++) + att[i] = SYN_RV; + return att; + } + for (i = 0; i < n; i++) + att[i] = syn_ctx1; + if (conf_hl('&')) { + char *r = s; + for (i = 0; i < n; i++) { + if (mapch_get(r, NULL)) + att[i] = syn_merge(att[i], conf_hl('&')); + r = uc_next(r); + } + } + if (syn_ctx2) { + for (i = 0; i < n; i++) + att[i] = syn_merge(att[i], syn_ctx2); + } + if (!rs) + rs = syn_make(ft); + if (!rs) + return att; + while ((hl = rset_find(rs, s + soff, LEN(subs) / 2, subs, flg)) >= 0) { + int sidx = uc_off(s, soff); + int grp = 0; + int cend = 1; + int *catt; + conf_highlight(hl, NULL, &catt, NULL, &grp); + for (i = 0; i < LEN(subs) / 2; i++) { + if (subs[i * 2] >= 0) { + int o1 = subs[i * 2 + 0]; + int o2 = subs[i * 2 + 1]; + int beg = sidx + uc_off(s + soff, o1); + int end = beg + uc_off(s + soff + o1, o2 - o1); + for (j = beg; j < end; j++) + att[j] = syn_merge(att[j], conf_hl(catt[i])); + if (i == grp) + cend = MAX(cend, o2); + } + } + soff += cend; + flg = RE_NOTBOL; + } + return att; +} + +char *syn_filetype(char *path) +{ + int hl = rset_find(syn_ftrs, path, 0, NULL, 0); + char *ft; + if (!conf_filetype(hl, &ft, NULL)) + return ft; + return ""; +} + +void syn_init(void) +{ + char *pats[128] = {NULL}; + char *pat; + int i; + for (i = 0; !conf_filetype(i, NULL, &pat) && i < LEN(pats); i++) + pats[i] = pat; + syn_ftrs = rset_make(i, pats, 0); +} + +void syn_done(void) +{ + int i; + for (i = 0; i < LEN(ftmap); i++) + if (ftmap[i].rs) + rset_free(ftmap[i].rs); + rset_free(syn_ftrs); +} diff --git a/Apps/Neatvi/main/Source/tactility.c b/Apps/Neatvi/main/Source/tactility.c new file mode 100644 index 0000000..4c82c57 --- /dev/null +++ b/Apps/Neatvi/main/Source/tactility.c @@ -0,0 +1,54 @@ +/* + * Tactility replacements for neatvi's cmd.c and lsp.c: both start other processes (fork/exec), + * which Tactility doesn't have. Shell commands (:!, filters, pipes) and LSP support report failure. + */ +#include +#include "vi.h" + +char *cmd_pipe(char *cmd, char *ibuf, int oproc) +{ + return NULL; +} + +char *cmd_unix(char *path, char *ibuf) +{ + return NULL; +} + +int cmd_exec(char *cmd) +{ + return 1; +} + +int lsp_init(char *cmd[]) +{ + return 1; +} + +void lsp_done(void) +{ +} + +int lsp_on(void) +{ + return 0; +} + +void lsp_modified(char *path, char *ft) +{ +} + +int lsp_definition(char *path, int row, int off, char *ft, char *dst, int dstlen, int *drow, int *doff) +{ + return 1; +} + +char *lsp_find(char *path, int row, int off, char *ft) +{ + return NULL; +} + +char *lsp_hover(char *path, int row, int off, char *ft) +{ + return NULL; +} diff --git a/Apps/Neatvi/main/Source/tag.c b/Apps/Neatvi/main/Source/tag.c new file mode 100644 index 0000000..b71bd21 --- /dev/null +++ b/Apps/Neatvi/main/Source/tag.c @@ -0,0 +1,340 @@ +#include +#include +#include +#include +#include +#include +#include +#include "vi.h" + +static char *tagpath; +static char *tag; +static long taglen; + +int tag_init(void) +{ + return 0; +} + +static int tag_load(void) +{ + char buf[1 << 10]; + struct sbuf sb = {0}; + long nr; + int fd; + if (tagpath != NULL) + return tag == NULL; + tagpath = getenv("TAGPATH") ? getenv("TAGPATH") : "tags"; + if ((fd = open(tagpath, O_RDONLY)) < 0) + return 1; + while ((nr = read(fd, buf, sizeof(buf))) > 0) + sbuf_mem(&sb, buf, nr); + close(fd); + taglen = sbuf_len(&sb); + tag = sbuf_done(&sb); + return 0; +} + +void tag_done(void) +{ + free(tag); + tag = NULL; + tagpath = NULL; +} + +static char *copypart(char *dst, int dstlen, char *src) +{ + char *end = src; + int len = dstlen - 1; + while (*end && *end != '\t' && *end != '\n') + end++; + if (end - src < len) + len = end - src; + if (dst != NULL && dstlen > 0) { + memcpy(dst, src, len); + dst[len] = '\0'; + } + return *end ? end + 1 : end; +} + +static char *tag_next(char *s, int dir) +{ + if (dir >= 0 && *s) { + if ((s = strchr(s + 1, '\n')) != NULL) + return s + 1; + } + if (dir < 0 && s > tag) { + s--; + while (s > tag && s[-1] != '\n') + s--; + return s; + } + return NULL; +} + +int tag_find(char *name, int *pos, int dir, char *path, int pathlen, char *cmd, int cmdlen) +{ + char *s; + int len = strlen(name); + if (tag_load() != 0) + return 1; + if (*pos >= taglen) + *pos = 0; + s = dir != 0 ? tag_next(tag + *pos, dir) : tag + *pos; + while (s) { + if (!strncmp(name, s, len) && s[len] == '\t') { + char *r = copypart(path, pathlen, s + len + 1); + copypart(cmd, cmdlen, r); + *pos = s - tag; + return 0; + } + s = tag_next(s, dir); + } + return 1; +} + +struct tlist { + char **ls; + char *mark; + char *raw; + int ls_n; + int ls_sz; +}; + +struct tlist *tlist_make(char *ls[], int ls_n) +{ + struct tlist *tls = malloc(sizeof(*tls)); + memset(tls, 0, sizeof(*tls)); + tls->ls = ls; + tls->ls_n = ls_n; + tls->ls_sz = 0; + return tls; +} + +static int tlist_put(struct tlist *tls, char *item) +{ + if (tls->ls_n >= tls->ls_sz) { + char **new; + int ls_sz = tls->ls_sz + 256; + if (!(new = malloc(ls_sz * sizeof(tls->ls[0])))) + return 1; + memcpy(new, tls->ls, tls->ls_n * sizeof(tls->ls[0])); + free(tls->ls); + tls->ls_sz = ls_sz; + tls->ls = new; + } + tls->ls[tls->ls_n++] = item; + return 0; +} + +struct tlist *tlist_from(char *path) +{ + struct tlist *tls; + char buf[1024]; + long nr; + char *s; + struct sbuf sb = {0}; + int fd = open(path, O_RDONLY); + if (fd < 0) + return NULL; + tls = tlist_make(NULL, 0); + while (sbuf_len(&sb) < (1 << 20) && (nr = read(fd, buf, sizeof(buf))) > 0) + sbuf_mem(&sb, buf, nr); + close(fd); + tls->raw = sbuf_done(&sb); + for (s = tls->raw; s && *s;) { + char *r = strchr(s, '\n'); + if (r && s[0] != '#' && !isspace((unsigned char) s[0])) + tlist_put(tls, s); + if (r) + *r++ = '\0'; + s = r; + } + return tls; +} + +struct tlist *tlist_str(char *str) +{ + struct tlist *tls; + char *s; + if (!str || !*str) + return NULL; + tls = tlist_make(NULL, 0); + tls->raw = uc_dup(str); + for (s = tls->raw; s && *s;) { + char *r = strchr(s, '\n'); + if (r && s[0] != '#' && !isspace((unsigned char) s[0])) + tlist_put(tls, s); + if (r) + *r++ = '\0'; + s = r; + } + return tls; +} + +struct tlist *tlist_tags(char *path) +{ + struct tlist *tls; + char buf[1024]; + long nr; + char *s; + struct sbuf sb = {0}; + int fd = open(path, O_RDONLY); + if (fd < 0) + return NULL; + tls = tlist_make(NULL, 0); + while (sbuf_len(&sb) < (1 << 20) && (nr = read(fd, buf, sizeof(buf))) > 0) + sbuf_mem(&sb, buf, nr); + close(fd); + tls->raw = sbuf_done(&sb); + for (s = tls->raw; s && *s;) { + char *r = strchr(s, '\n'); + char *t1 = s ? memchr(s, '\t', r - s) : NULL; + char *t2 = t1 ? memchr(t1 + 1, '\t', r - t1 - 1) : NULL; + if (r && s[0] != '#' && !isspace((unsigned char) s[0])) + tlist_put(tls, s); + if (t2) + *t2 = '\0'; + if (r) + *r++ = '\0'; + s = r; + } + return tls; +} + +void tlist_free(struct tlist *tls) +{ + if (tls->ls_sz) + free(tls->ls); + free(tls->raw); + free(tls->mark); + free(tls); +} + +void tlist_filt(struct tlist *tls, char *kw) +{ + int i; + if (!tls->mark) { + if (!(tls->mark = malloc(tls->ls_n * sizeof(tls->mark[0])))) + return; + memset(tls->mark, 1, tls->ls_n * sizeof(tls->mark[0])); + } + if (!kw) + memset(tls->mark, 1, tls->ls_n * sizeof(tls->mark[0])); + for (i = 0; i < tls->ls_n; i++) + if (kw && tls->mark[i] && !strstr(tls->ls[i], kw)) + tls->mark[i] = 0; +} + +int tlist_cnt(struct tlist *tls) +{ + return tls->ls_n; +} + +int tlist_matches(struct tlist *tls) +{ + int i, cnt = 0; + for (i = 0; i < tls->ls_n; i++) + if (!tls->mark || tls->mark[i]) + cnt++; + return cnt; +} + +char *tlist_get(struct tlist *tls, int idx) +{ + return idx < tls->ls_n ? tls->ls[idx] : NULL; +} + +int tlist_top(struct tlist *tls, int *view, int view_sz) +{ + int view_n = 0; + int i; + for (i = 0; i < tls->ls_n && view_n < view_sz; i++) + if (!tls->mark || tls->mark[i]) + view[view_n++] = i; + return view_n; +} + +static long qfix_pos; /* offset in qfix buffer; -1 implies before the beginning */ + +static int qfix_readln(char *ln, char *dst, int dstlen, int *row, int *off, char *txt, int txtlen) +{ + char *c1, *c2, *c3; + char *eol = strchr(ln, '\n'); + int len; + if (strchr("# \t:", (unsigned char) ln[0]) || !ln) + return 1; + if (!(c1 = memchr(ln, ':', eol - ln)) || c1[1] < '0' || c1[1] > '9') + return 1; + c2 = c1 + 1; + while (isdigit((unsigned char) *c2)) + c2++; + if (*c2 != ':') + return 1; + c3 = c2 + 1; + while (isdigit((unsigned char) *c3)) + c3++; + len = MIN(c1 - ln, dstlen - 1); + if (dst) { + memcpy(dst, ln, len); + dst[len] = '\0'; + } + if (row) + *row = atoi(c1 + 1) - 1; + if (off) + *off = *c3 == ':' ? MAX(1, atoi(c2 + 1)) - 1 : 0; + if (txt && txtlen > 0) { + char *beg = (*c3 == ':' ? c3 : c2) + 1; + while (*beg == ' ' || *beg == '\t') + beg++; + len = MIN(eol - beg, txtlen - 1); + memcpy(txt, beg, len); + txt[len] = '\0'; + } + return 0; +} + +int qfix_current(char *dst, int dstlen, int *row, int *off, char *txt, int txtlen) +{ + char *qfix = reg_get('*', NULL); + if (!qfix || !*qfix || qfix_pos >= (signed long) strlen(qfix)) + return 1; + if (qfix_pos < 0 && qfix_next()) + return 1; + return qfix_readln(qfix + qfix_pos, dst, dstlen, row, off, txt, txtlen); +} + +int qfix_next(void) +{ + char *qfix = reg_get('*', NULL); + char *eol; + if (!qfix || !*qfix || qfix_pos >= (signed long) strlen(qfix)) + return 1; + while ((eol = qfix_pos >= 0 ? strchr(qfix + qfix_pos, '\n') : qfix - 1)) { + qfix_pos = eol + 1 - qfix; + if (!qfix_readln(qfix + qfix_pos, NULL, 0, NULL, NULL, NULL, 0)) + return 0; + } + return !eol || !eol[1]; +} + +int qfix_prev(void) +{ + char *qfix = reg_get('*', NULL); + if (!qfix || !*qfix || qfix_pos > (signed long) strlen(qfix)) + return 1; + while (qfix_pos > 0) { + qfix_pos--; + while (qfix_pos > 0 && qfix[qfix_pos - 1] != '\n') + qfix_pos--; + if (!qfix_readln(qfix + qfix_pos, NULL, 0, NULL, NULL, NULL, 0)) + return 0; + } + qfix_pos = -1; + return 1; +} + +void qfix_reset(void) +{ + qfix_pos = -1; +} diff --git a/Apps/Neatvi/main/Source/term.c b/Apps/Neatvi/main/Source/term.c new file mode 100644 index 0000000..bd87ae8 --- /dev/null +++ b/Apps/Neatvi/main/Source/term.c @@ -0,0 +1,234 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include "vi.h" + +static struct sbuf term_sbuf; /* output buffer if not NULL */ +static int rows, cols; /* number of terminal rows and columns */ +static int win_top, win_rows; /* active window rows */ +static int win_left, win_cols; /* active window columns */ +static struct termios termios; + +void term_init(void) +{ + struct winsize win; + struct termios newtermios; + tcgetattr(0, &termios); + newtermios = termios; + newtermios.c_lflag &= ~(ICANON | ISIG); + newtermios.c_lflag &= ~ECHO; + tcsetattr(0, TCSAFLUSH, &newtermios); + if (getenv("LINES")) + rows = atoi(getenv("LINES")); + if (getenv("COLUMNS")) + cols = atoi(getenv("COLUMNS")); + if (!ioctl(0, TIOCGWINSZ, &win)) { + cols = win.ws_col; + rows = win.ws_row; + } + cols = cols ? cols : 80; + rows = rows ? rows : 25; + term_str("\33[m"); + term_window(win_top, win_rows > 0 ? win_rows : rows); +} + +void term_window(int row, int cnt) +{ + char cmd[64]; + win_top = row; + win_rows = cnt; + win_left = 0; + win_cols = cols; + if (row == 0 && win_rows == rows) { + term_str("\33[r"); + } else { + sprintf(cmd, "\33[%d;%dr", win_top + 1, win_top + win_rows); + term_str(cmd); + } +} + +void term_done(void) +{ + term_str("\33[r"); + term_pos(rows - 1, 0); + term_kill(); + term_commit(); + sbuf_free(&term_sbuf); + tcsetattr(0, 0, &termios); +} + +void term_suspend(void) +{ + term_done(); + kill(0, SIGSTOP); + term_init(); +} + +static long write_fully(int fd, void *buf, long sz) +{ + long nw = 0, nc = 0; + while (nw < sz && (nc = write(fd, buf + nw, sz - nw)) >= 0) + nw += nc; + return nc >= 0 ? nw : -1; +} + +void term_commit(void) +{ + write_fully(1, sbuf_buf(&term_sbuf), sbuf_len(&term_sbuf)); + sbuf_cut(&term_sbuf, 0); +} + +void term_str(char *s) +{ + sbuf_str(&term_sbuf, s); +} + +void term_chr(int ch) +{ + char s[4] = {ch}; + term_str(s); +} + +void term_kill(void) +{ + term_str("\33[K"); +} + +void term_room(int n) +{ + char cmd[16]; + if (n < 0) + sprintf(cmd, "\33[%dM", -n); + if (n > 0) + sprintf(cmd, "\33[%dL", n); + if (n) + term_str(cmd); +} + +void term_pos(int r, int c) +{ + char buf[32]; + if (c < 0) + c = 0; + if (c >= term_cols()) + c = win_cols - 1; + if (r < 0) + sprintf(buf, "\33[%dG", win_left + c + 1); + else + sprintf(buf, "\33[%d;%dH", win_top + r + 1, win_left + c + 1); + term_str(buf); +} + +int term_rowx(void) +{ + return rows; +} + +int term_rows(void) +{ + return win_rows; +} + +int term_cols(void) +{ + return win_cols; +} + +static char istd[1024]; /* characters read from stdin */ +static char ibuf[4096]; /* buffered characters (term_push) */ +static char icmd[4096]; /* characters returned since the last term_cmd() */ +static int istd_pos, istd_cnt; /* istd[] position and length */ +static int ibuf_pos, ibuf_cnt; /* ibuf[] position and length */ +static int icmd_pos; /* icmd[] position */ + +/* read s before reading from the terminal */ +void term_push(char *s, int n) +{ + int cur = ibuf_cnt - ibuf_pos; + n = MIN(n, sizeof(ibuf) - cur); + memmove(ibuf + n, ibuf + ibuf_pos, cur); + memcpy(ibuf, s, n); + ibuf_pos = 0; + ibuf_cnt = cur + n; +} + +/* drop all characters pushed via term_push() */ +void term_pushstop(void) +{ + ibuf_pos = ibuf_cnt; +} + +/* return a static buffer containing inputs read since the last term_cmd() */ +char *term_cmd(int *n) +{ + *n = icmd_pos; + icmd_pos = 0; + return icmd; +} + +int term_read(int buffered) +{ + struct pollfd ufds[1]; + int n, c; + if (xquit) /* a signal asked to quit: do not block */ + return -1; + if (!buffered && ibuf_pos >= ibuf_cnt && istd_pos >= istd_cnt) { + ufds[0].fd = 0; + ufds[0].events = POLLIN; + if (poll(ufds, 1, -1) <= 0) + return -1; + if ((n = read(0, istd, sizeof(istd))) <= 0) + return -1; + istd_cnt = n; + istd_pos = 0; + } + if (ibuf_pos < ibuf_cnt) + c = (unsigned char) ibuf[ibuf_pos++]; + else + c = istd_pos < istd_cnt ? (unsigned char) istd[istd_pos++] : -1; + if (icmd_pos < sizeof(icmd) && c >= 0) + icmd[icmd_pos++] = c; + return c; +} + +/* return a static string that changes text attributes from old to att */ +char *term_seqattr(int att, int old) +{ + static char buf[128]; + char *s = buf; + int fg = SYN_FG(att); + int bg = SYN_BG(att); + if (att == old) + return ""; + s += sprintf(s, "\33["); + if (att & SYN_BD) + s += sprintf(s, ";1"); + if (att & SYN_IT) + s += sprintf(s, ";3"); + if (att & SYN_RV) + s += sprintf(s, ";7"); + if (SYN_FGSET(att)) { + if ((fg & 0xff) < 8) + s += sprintf(s, ";%d", 30 + (fg & 0xff)); + else + s += sprintf(s, ";38;5;%d", (fg & 0xff)); + } + if (SYN_BGSET(att)) { + if ((bg & 0xff) < 8) + s += sprintf(s, ";%d", 40 + (bg & 0xff)); + else + s += sprintf(s, ";48;5;%d", (bg & 0xff)); + } + s += sprintf(s, "m"); + return buf; +} + +char *term_seqkill(void) +{ + return "\33[K"; +} diff --git a/Apps/Neatvi/main/Source/uc.c b/Apps/Neatvi/main/Source/uc.c new file mode 100644 index 0000000..8352330 --- /dev/null +++ b/Apps/Neatvi/main/Source/uc.c @@ -0,0 +1,644 @@ +#include +#include +#include +#include +#include "vi.h" + +#define LEN(a) (sizeof(a) / sizeof((a)[0])) + +/* return the length of a utf-8 character */ +int uc_len(char *s) +{ + int c = (unsigned char) s[0]; + if (~c & 0xc0 || !s[1]) /* ASCII or invalid */ + return c > 0; + if (~c & 0x20 || !s[2]) + return 2; + if (~c & 0x10 || !s[3]) + return 3; + if (~c & 0x08) + return 4; + return 1; +} + +/* return the expected length of a utf-8 character */ +int uc_len_expect(char c) +{ + if (~c & 0xc0) /* ASCII or invalid */ + return c > 0; + if (~c & 0x20) + return 2; + if (~c & 0x10) + return 3; + if (~c & 0x08) + return 4; + return 1; +} + +/* the unicode codepoint of the given utf-8 character */ +int uc_code(char *s) +{ + int c = (unsigned char) s[0]; + if (~c & 0xc0 || !s[1]) /* ASCII or invalid */ + return c; + if (~c & 0x20 || !s[2]) + return ((c & 0x1f) << 6) | (s[1] & 0x3f); + if (~c & 0x10 || !s[3]) + return ((c & 0x0f) << 12) | ((s[1] & 0x3f) << 6) | (s[2] & 0x3f); + if (~c & 0x08) + return ((c & 0x07) << 18) | ((s[1] & 0x3f) << 12) | ((s[2] & 0x3f) << 6) | (s[3] & 0x3f); + return c; +} + +/* find the beginning of the character at s[i] */ +char *uc_beg(char *beg, char *s) +{ + while (s > beg && (((unsigned char) *s) & 0xc0) == 0x80) + s--; + return s; +} + +/* return a pointer to the character following s */ +char *uc_next(char *s) +{ + int l = uc_len(s); + return l > 0 ? s + l : s; +} + +/* return a pointer to the character preceding s */ +char *uc_prev(char *beg, char *s) +{ + return s == beg ? beg : uc_beg(beg, s - 1); +} + +/* the number of utf-8 characters in s */ +int uc_slen(char *s) +{ + int n; + for (n = 0; *s; n++) + s += uc_len(s); + return n; +} + +char *uc_lastline(char *s) +{ + char *r = strrchr(s, '\n'); + return r ? r + 1 : s; +} + +/* allocate and return an array for the characters in s */ +char **uc_chop(char *s, int *n) +{ + char **chrs; + int i; + *n = uc_slen(s); + chrs = malloc((*n + 1) * sizeof(chrs[0])); + for (i = 0; i < *n + 1; i++) { + chrs[i] = s; + s = uc_next(s); + } + return chrs; +} + +char *uc_chr(char *s, int off) +{ + int i = 0; + while (s && *s) { + if (i++ == off) + return s; + s = uc_next(s); + } + return s && (off < 0 || i == off) ? s : NULL; +} + +/* the number of characters between s and s + off */ +int uc_off(char *s, int off) +{ + char *e = s + off; + int i; + for (i = 0; s < e && *s; i++) + s = uc_next(s); + return i; +} + +char *uc_sub(char *s, int beg, int end) +{ + char *sbeg = uc_chr(s, beg); + char *send = uc_chr(s, end); + int len = sbeg && send && sbeg <= send ? send - sbeg : 0; + char *r = malloc(len + 1); + if (len > 0) + memcpy(r, sbeg, len); + r[len] = '\0'; + return r; +} + +char *uc_dup(char *s) +{ + char *r = malloc(strlen(s) + 1); + return r ? strcpy(r, s) : NULL; +} + +char *uc_cat(char *s, char *r) +{ + int slen = strlen(s); + int rlen = strlen(r); + char *o = malloc(slen + rlen + 1); + memcpy(o, s, slen); + memcpy(o + slen, r, rlen); + o[slen + rlen] = '\0'; + return o; +} + +int uc_isspace(char *s) +{ + int c = s ? (unsigned char) *s : 0; + return c <= 0x7f && isspace(c); +} + +int uc_isprint(char *s) +{ + int c = s ? (unsigned char) *s : 0; + return c > 0x7f || isprint(c); +} + +int uc_isalpha(char *s) +{ + int c = s ? (unsigned char) *s : 0; + return c > 0x7f || isalpha(c); +} + +int uc_isdigit(char *s) +{ + int c = s ? (unsigned char) *s : 0; + return c <= 0x7f && isdigit(c); +} + +int uc_kind(char *c) +{ + if (uc_isspace(c)) + return 0; + if (uc_isalpha(c) || uc_isdigit(c) || c[0] == '_') + return 1; + return 2; +} + +#define UC_R2L(ch) (((ch) & 0xff00) == 0x0600 || \ + ((ch) & 0xfffc) == 0x200c || \ + ((ch) & 0xff00) == 0xfb00 || \ + ((ch) & 0xff00) == 0xfc00 || \ + ((ch) & 0xff00) == 0xfe00) + +/* sorted list of characters that can be shaped */ +static struct achar { + unsigned c; /* utf-8 code */ + unsigned s; /* single form */ + unsigned i; /* initial form */ + unsigned m; /* medial form */ + unsigned f; /* final form */ +} achars[] = { + {0x0621, 0xfe80}, /* hamza */ + {0x0622, 0xfe81, 0, 0, 0xfe82}, /* alef madda */ + {0x0623, 0xfe83, 0, 0, 0xfe84}, /* alef hamza above */ + {0x0624, 0xfe85, 0, 0, 0xfe86}, /* waw hamza */ + {0x0625, 0xfe87, 0, 0, 0xfe88}, /* alef hamza below */ + {0x0626, 0xfe89, 0xfe8b, 0xfe8c, 0xfe8a}, /* yeh hamza */ + {0x0627, 0xfe8d, 0, 0, 0xfe8e}, /* alef */ + {0x0628, 0xfe8f, 0xfe91, 0xfe92, 0xfe90}, /* beh */ + {0x0629, 0xfe93, 0, 0, 0xfe94}, /* teh marbuta */ + {0x062a, 0xfe95, 0xfe97, 0xfe98, 0xfe96}, /* teh */ + {0x062b, 0xfe99, 0xfe9b, 0xfe9c, 0xfe9a}, /* theh */ + {0x062c, 0xfe9d, 0xfe9f, 0xfea0, 0xfe9e}, /* jeem */ + {0x062d, 0xfea1, 0xfea3, 0xfea4, 0xfea2}, /* hah */ + {0x062e, 0xfea5, 0xfea7, 0xfea8, 0xfea6}, /* khah */ + {0x062f, 0xfea9, 0, 0, 0xfeaa}, /* dal */ + {0x0630, 0xfeab, 0, 0, 0xfeac}, /* thal */ + {0x0631, 0xfead, 0, 0, 0xfeae}, /* reh */ + {0x0632, 0xfeaf, 0, 0, 0xfeb0}, /* zain */ + {0x0633, 0xfeb1, 0xfeb3, 0xfeb4, 0xfeb2}, /* seen */ + {0x0634, 0xfeb5, 0xfeb7, 0xfeb8, 0xfeb6}, /* sheen */ + {0x0635, 0xfeb9, 0xfebb, 0xfebc, 0xfeba}, /* sad */ + {0x0636, 0xfebd, 0xfebf, 0xfec0, 0xfebe}, /* dad */ + {0x0637, 0xfec1, 0xfec3, 0xfec4, 0xfec2}, /* tah */ + {0x0638, 0xfec5, 0xfec7, 0xfec8, 0xfec6}, /* zah */ + {0x0639, 0xfec9, 0xfecb, 0xfecc, 0xfeca}, /* ain */ + {0x063a, 0xfecd, 0xfecf, 0xfed0, 0xfece}, /* ghain */ + {0x0640, 0x640, 0x640, 0x640}, /* tatweel */ + {0x0641, 0xfed1, 0xfed3, 0xfed4, 0xfed2}, /* feh */ + {0x0642, 0xfed5, 0xfed7, 0xfed8, 0xfed6}, /* qaf */ + {0x0643, 0xfed9, 0xfedb, 0xfedc, 0xfeda}, /* kaf */ + {0x0644, 0xfedd, 0xfedf, 0xfee0, 0xfede}, /* lam */ + {0x0645, 0xfee1, 0xfee3, 0xfee4, 0xfee2}, /* meem */ + {0x0646, 0xfee5, 0xfee7, 0xfee8, 0xfee6}, /* noon */ + {0x0647, 0xfee9, 0xfeeb, 0xfeec, 0xfeea}, /* heh */ + {0x0648, 0xfeed, 0, 0, 0xfeee}, /* waw */ + {0x0649, 0xfeef, 0, 0, 0xfef0}, /* alef maksura */ + {0x064a, 0xfef1, 0xfef3, 0xfef4, 0xfef2}, /* yeh */ + {0x067e, 0xfb56, 0xfb58, 0xfb59, 0xfb57}, /* peh */ + {0x0686, 0xfb7a, 0xfb7c, 0xfb7d, 0xfb7b}, /* tcheh */ + {0x0698, 0xfb8a, 0, 0, 0xfb8b}, /* jeh */ + {0x06a9, 0xfb8e, 0xfb90, 0xfb91, 0xfb8f}, /* fkaf */ + {0x06af, 0xfb92, 0xfb94, 0xfb95, 0xfb93}, /* gaf */ + {0x06c0, 0xfba4, 0, 0, 0xfba5}, /* heh with yeh above */ + {0x06cc, 0xfbfc, 0xfbfe, 0xfbff, 0xfbfd}, /* fyeh */ + {0x200c}, /* ZWNJ */ + {0x200d, 0, 0x200d, 0x200d}, /* ZWJ */ +}; + +static struct achar *find_achar(int c) +{ + int h, m, l; + h = LEN(achars); + l = 0; + /* using binary search to find c */ + while (l < h) { + m = (h + l) >> 1; + if (achars[m].c == c) + return &achars[m]; + if (c < achars[m].c) + h = m; + else + l = m + 1; + } + return NULL; +} + +static int can_join(int c1, int c2) +{ + struct achar *a1 = find_achar(c1); + struct achar *a2 = find_achar(c2); + return a1 && a2 && (a1->i || a1->m) && (a2->f || a2->m); +} + +static int uc_cshape(int cur, int prev, int next) +{ + int c = cur; + int join_prev, join_next; + struct achar *ac = find_achar(c); + if (!ac) /* ignore non-Arabic characters */ + return c; + join_prev = can_join(prev, c); + join_next = can_join(c, next); + if (join_prev && join_next) + c = ac->m; + if (join_prev && !join_next) + c = ac->f; + if (!join_prev && join_next) + c = ac->i; + if (!join_prev && !join_next) + c = ac->c; /* some fonts do not have a glyph for ac->s */ + return c ? c : cur; +} + +/* + * return nonzero for Arabic combining characters + * + * The standard Arabic diacritics: + * + 0x064b: fathatan + * + 0x064c: dammatan + * + 0x064d: kasratan + * + 0x064e: fatha + * + 0x064f: damma + * + 0x0650: kasra + * + 0x0651: shadda + * + 0x0652: sukun + * + 0x0653: madda above + * + 0x0654: hamza above + * + 0x0655: hamza below + * + 0x0670: superscript alef + */ +static int uc_acomb(int c) +{ + return (c >= 0x064b && c <= 0x0655) || /* the standard diacritics */ + (c >= 0xfc5e && c <= 0xfc63) || /* shadda ligatures */ + c == 0x0670; /* superscript alef */ +} + +static void uc_cput(char *d, int c) +{ + int l = 0; + if (c > 0xffff) { + *d++ = 0xf0 | (c >> 18); + l = 3; + } else if (c > 0x7ff) { + *d++ = 0xe0 | (c >> 12); + l = 2; + } else if (c > 0x7f) { + *d++ = 0xc0 | (c >> 6); + l = 1; + } else { + *d++ = c; + } + while (l--) + *d++ = 0x80 | ((c >> (l * 6)) & 0x3f); + *d = '\0'; +} + +/* shape the given arabic character; returns a static buffer */ +char *uc_shape(char *beg, char *s) +{ + static char out[16]; + char *r; + int prev = 0; + int next = 0; + int curr = uc_code(s); + if (!curr || !UC_R2L(curr)) + return NULL; + r = s; + while (r > beg) { + r = uc_beg(beg, r - 1); + if (!uc_acomb(uc_code(r))) { + prev = uc_code(r); + break; + } + } + r = s; + while (*r) { + r = uc_next(r); + if (!uc_acomb(uc_code(r))) { + next = uc_code(r); + break; + } + } + uc_cput(out, uc_cshape(curr, prev, next)); + return out; +} + +static int dwchars[][2] = { + {0x1100, 0x115f}, {0x11a3, 0x11a7}, {0x11fa, 0x11ff}, {0x2329, 0x232a}, + {0x2e80, 0x2e99}, {0x2e9b, 0x2ef3}, {0x2f00, 0x2fd5}, {0x2ff0, 0x2ffb}, + {0x3000, 0x3029}, {0x3030, 0x303e}, {0x3041, 0x3096}, {0x309b, 0x30ff}, + {0x3105, 0x312d}, {0x3131, 0x318e}, {0x3190, 0x31b7}, {0x31c0, 0x31e3}, + {0x31f0, 0x321e}, {0x3220, 0x3247}, {0x3250, 0x32fe}, {0x3300, 0x4dbf}, + {0x4e00, 0xa48c}, {0xa490, 0xa4c6}, {0xa960, 0xa97c}, {0xac00, 0xd7a3}, + {0xd7b0, 0xd7c6}, {0xd7cb, 0xd7fb}, {0xf900, 0xfaff}, {0xfe10, 0xfe19}, + {0xfe30, 0xfe52}, {0xfe54, 0xfe66}, {0xfe68, 0xfe6b}, {0xff01, 0xff60}, + {0xffe0, 0xffe6}, {0x1f200, 0x1f200}, {0x1f210, 0x1f231}, {0x1f240, 0x1f248}, + {0x20000,0x2ffff}, +}; + +static int zwchars[][2] = { + {0x0300, 0x036f}, {0x0483, 0x0489}, {0x0591, 0x05bd}, {0x05bf, 0x05bf}, + {0x05c1, 0x05c2}, {0x05c4, 0x05c5}, {0x05c7, 0x05c7}, {0x0610, 0x061a}, + {0x064b, 0x065e}, {0x0670, 0x0670}, {0x06d6, 0x06dc}, {0x06de, 0x06e4}, + {0x06e7, 0x06e8}, {0x06ea, 0x06ed}, {0x0711, 0x0711}, {0x0730, 0x074a}, + {0x07a6, 0x07b0}, {0x07eb, 0x07f3}, {0x0816, 0x0819}, {0x081b, 0x0823}, + {0x0825, 0x0827}, {0x0829, 0x082d}, {0x0900, 0x0903}, {0x093c, 0x093c}, + {0x093e, 0x094e}, {0x0951, 0x0955}, {0x0962, 0x0963}, {0x0981, 0x0983}, + {0x09bc, 0x09bc}, {0x09be, 0x09c4}, {0x09c7, 0x09c8}, {0x09cb, 0x09cd}, + {0x09d7, 0x09d7}, {0x09e2, 0x09e3}, {0x0a01, 0x0a03}, {0x0a3c, 0x0a3c}, + {0x0a3e, 0x0a42}, {0x0a47, 0x0a48}, {0x0a4b, 0x0a4d}, {0x0a51, 0x0a51}, + {0x0a70, 0x0a71}, {0x0a75, 0x0a75}, {0x0a81, 0x0a83}, {0x0abc, 0x0abc}, + {0x0abe, 0x0ac5}, {0x0ac7, 0x0ac9}, {0x0acb, 0x0acd}, {0x0ae2, 0x0ae3}, + {0x0b01, 0x0b03}, {0x0b3c, 0x0b3c}, {0x0b3e, 0x0b44}, {0x0b47, 0x0b48}, + {0x0b4b, 0x0b4d}, {0x0b56, 0x0b57}, {0x0b62, 0x0b63}, {0x0b82, 0x0b82}, + {0x0bbe, 0x0bc2}, {0x0bc6, 0x0bc8}, {0x0bca, 0x0bcd}, {0x0bd7, 0x0bd7}, + {0x0c01, 0x0c03}, {0x0c3e, 0x0c44}, {0x0c46, 0x0c48}, {0x0c4a, 0x0c4d}, + {0x0c55, 0x0c56}, {0x0c62, 0x0c63}, {0x0c82, 0x0c83}, {0x0cbc, 0x0cbc}, + {0x0cbe, 0x0cc4}, {0x0cc6, 0x0cc8}, {0x0cca, 0x0ccd}, {0x0cd5, 0x0cd6}, + {0x0ce2, 0x0ce3}, {0x0d02, 0x0d03}, {0x0d3e, 0x0d44}, {0x0d46, 0x0d48}, + {0x0d4a, 0x0d4d}, {0x0d57, 0x0d57}, {0x0d62, 0x0d63}, {0x0d82, 0x0d83}, + {0x0dca, 0x0dca}, {0x0dcf, 0x0dd4}, {0x0dd6, 0x0dd6}, {0x0dd8, 0x0ddf}, + {0x0df2, 0x0df3}, {0x0e31, 0x0e31}, {0x0e34, 0x0e3a}, {0x0e47, 0x0e4e}, + {0x0eb1, 0x0eb1}, {0x0eb4, 0x0eb9}, {0x0ebb, 0x0ebc}, {0x0ec8, 0x0ecd}, + {0x0f18, 0x0f19}, {0x0f35, 0x0f35}, {0x0f37, 0x0f37}, {0x0f39, 0x0f39}, + {0x0f3e, 0x0f3f}, {0x0f71, 0x0f84}, {0x0f86, 0x0f87}, {0x0f90, 0x0f97}, + {0x0f99, 0x0fbc}, {0x0fc6, 0x0fc6}, {0x102b, 0x103e}, {0x1056, 0x1059}, + {0x105e, 0x1060}, {0x1062, 0x1064}, {0x1067, 0x106d}, {0x1071, 0x1074}, + {0x1082, 0x108d}, {0x108f, 0x108f}, {0x109a, 0x109d}, {0x135f, 0x135f}, + {0x1712, 0x1714}, {0x1732, 0x1734}, {0x1752, 0x1753}, {0x1772, 0x1773}, + {0x17b6, 0x17d3}, {0x17dd, 0x17dd}, {0x180b, 0x180d}, {0x18a9, 0x18a9}, + {0x1920, 0x192b}, {0x1930, 0x193b}, {0x19b0, 0x19c0}, {0x19c8, 0x19c9}, + {0x1a17, 0x1a1b}, {0x1a55, 0x1a5e}, {0x1a60, 0x1a7c}, {0x1a7f, 0x1a7f}, + {0x1b00, 0x1b04}, {0x1b34, 0x1b44}, {0x1b6b, 0x1b73}, {0x1b80, 0x1b82}, + {0x1ba1, 0x1baa}, {0x1c24, 0x1c37}, {0x1cd0, 0x1cd2}, {0x1cd4, 0x1ce8}, + {0x1ced, 0x1ced}, {0x1cf2, 0x1cf2}, {0x1dc0, 0x1de6}, {0x1dfd, 0x1dff}, + {0x200b, 0x200f}, + {0x20d0, 0x20f0}, {0x2cef, 0x2cf1}, {0x2de0, 0x2dff}, {0x302a, 0x302f}, + {0x3099, 0x309a}, {0xa66f, 0xa672}, {0xa67c, 0xa67d}, {0xa6f0, 0xa6f1}, + {0xa802, 0xa802}, {0xa806, 0xa806}, {0xa80b, 0xa80b}, {0xa823, 0xa827}, + {0xa880, 0xa881}, {0xa8b4, 0xa8c4}, {0xa8e0, 0xa8f1}, {0xa926, 0xa92d}, + {0xa947, 0xa953}, {0xa980, 0xa983}, {0xa9b3, 0xa9c0}, {0xaa29, 0xaa36}, + {0xaa43, 0xaa43}, {0xaa4c, 0xaa4d}, {0xaa7b, 0xaa7b}, {0xaab0, 0xaab0}, + {0xaab2, 0xaab4}, {0xaab7, 0xaab8}, {0xaabe, 0xaabf}, {0xaac1, 0xaac1}, + {0xabe3, 0xabea}, {0xabec, 0xabed}, {0xfb1e, 0xfb1e}, {0xfe00, 0xfe0f}, + {0xfe20, 0xfe26}, {0x101fd, 0x101fd}, {0x10a01, 0x10a03}, {0x10a05, 0x10a06}, + {0x10a0c, 0x10a0f}, {0x10a38, 0x10a3a}, {0x10a3f, 0x10a3f}, {0x11080, 0x11082}, + {0x110b0, 0x110ba}, {0x1d165, 0x1d169}, {0x1d16d, 0x1d172}, {0x1d17b, 0x1d182}, + {0x1d185, 0x1d18b}, {0x1d1aa, 0x1d1ad}, {0x1d242, 0x1d244}, {0xe0100, 0xe01ef} +}; + +static int bchars[][2] = { + {0x00000, 0x0001f}, {0x00080, 0x0009f}, {0x00300, 0x0036f}, + {0x00379, 0x00379}, {0x00380, 0x00383}, {0x0038d, 0x0038d}, + {0x00483, 0x00489}, {0x00527, 0x00530}, {0x00558, 0x00558}, + {0x00588, 0x00588}, {0x0058c, 0x005bd}, {0x005c1, 0x005c2}, + {0x005c5, 0x005c5}, {0x005c8, 0x005cf}, {0x005ec, 0x005ef}, + {0x005f6, 0x00605}, {0x00611, 0x0061a}, {0x0061d, 0x0061d}, + {0x0064b, 0x0065f}, {0x006d6, 0x006e4}, {0x006e8, 0x006e8}, + {0x006eb, 0x006ed}, {0x0070f, 0x0070f}, {0x00730, 0x0074c}, + {0x007a7, 0x007b0}, {0x007b3, 0x007bf}, {0x007ec, 0x007f3}, + {0x007fc, 0x007ff}, {0x00817, 0x00819}, {0x0081c, 0x00823}, + {0x00826, 0x00827}, {0x0082a, 0x0082f}, {0x00840, 0x00903}, + {0x0093b, 0x0093c}, {0x0093f, 0x0094f}, {0x00952, 0x00957}, + {0x00963, 0x00963}, {0x00974, 0x00978}, {0x00981, 0x00984}, + {0x0098e, 0x0098e}, {0x00992, 0x00992}, {0x009b1, 0x009b1}, + {0x009b4, 0x009b5}, {0x009bb, 0x009bc}, {0x009bf, 0x009cd}, + {0x009d0, 0x009db}, {0x009e2, 0x009e5}, {0x009fd, 0x00a04}, + {0x00a0c, 0x00a0e}, {0x00a12, 0x00a12}, {0x00a31, 0x00a31}, + {0x00a37, 0x00a37}, {0x00a3b, 0x00a58}, {0x00a5f, 0x00a65}, + {0x00a71, 0x00a71}, {0x00a76, 0x00a84}, {0x00a92, 0x00a92}, + {0x00ab1, 0x00ab1}, {0x00aba, 0x00abc}, {0x00abf, 0x00acf}, + {0x00ad2, 0x00adf}, {0x00ae3, 0x00ae5}, {0x00af2, 0x00b04}, + {0x00b0e, 0x00b0e}, {0x00b12, 0x00b12}, {0x00b31, 0x00b31}, + {0x00b3a, 0x00b3c}, {0x00b3f, 0x00b5b}, {0x00b62, 0x00b65}, + {0x00b73, 0x00b82}, {0x00b8b, 0x00b8d}, {0x00b96, 0x00b98}, + {0x00b9d, 0x00b9d}, {0x00ba1, 0x00ba2}, {0x00ba6, 0x00ba7}, + {0x00bac, 0x00bad}, {0x00bbb, 0x00bcf}, {0x00bd2, 0x00be5}, + {0x00bfc, 0x00c04}, {0x00c11, 0x00c11}, {0x00c34, 0x00c34}, + {0x00c3b, 0x00c3c}, {0x00c3f, 0x00c57}, {0x00c5b, 0x00c5f}, + {0x00c63, 0x00c65}, {0x00c71, 0x00c77}, {0x00c81, 0x00c84}, + {0x00c91, 0x00c91}, {0x00cb4, 0x00cb4}, {0x00cbb, 0x00cbc}, + {0x00cbf, 0x00cdd}, {0x00ce2, 0x00ce5}, {0x00cf3, 0x00d04}, + {0x00d11, 0x00d11}, {0x00d3a, 0x00d3c}, {0x00d3f, 0x00d5f}, + {0x00d63, 0x00d65}, {0x00d77, 0x00d78}, {0x00d81, 0x00d84}, + {0x00d98, 0x00d99}, {0x00dbc, 0x00dbc}, {0x00dbf, 0x00dbf}, + {0x00dc8, 0x00df3}, {0x00df6, 0x00e00}, {0x00e34, 0x00e3e}, + {0x00e48, 0x00e4e}, {0x00e5d, 0x00e80}, {0x00e85, 0x00e86}, + {0x00e8b, 0x00e8c}, {0x00e8f, 0x00e93}, {0x00ea0, 0x00ea0}, + {0x00ea6, 0x00ea6}, {0x00ea9, 0x00ea9}, {0x00eb1, 0x00eb1}, + {0x00eb5, 0x00ebc}, {0x00ebf, 0x00ebf}, {0x00ec7, 0x00ecf}, + {0x00edb, 0x00edb}, {0x00edf, 0x00eff}, {0x00f19, 0x00f19}, + {0x00f37, 0x00f37}, {0x00f3e, 0x00f3f}, {0x00f6d, 0x00f84}, + {0x00f87, 0x00f87}, {0x00f8d, 0x00fbd}, {0x00fcd, 0x00fcd}, + {0x00fda, 0x00fff}, {0x0102c, 0x0103e}, {0x01057, 0x01059}, + {0x0105f, 0x01060}, {0x01063, 0x01064}, {0x01068, 0x0106d}, + {0x01072, 0x01074}, {0x01083, 0x0108d}, {0x0109a, 0x0109d}, + {0x010c7, 0x010cf}, {0x010fe, 0x010ff}, {0x0124e, 0x0124f}, + {0x01259, 0x01259}, {0x0125f, 0x0125f}, {0x0128e, 0x0128f}, + {0x012b6, 0x012b7}, {0x012c1, 0x012c1}, {0x012c7, 0x012c7}, + {0x01311, 0x01311}, {0x01317, 0x01317}, {0x0135c, 0x0135f}, + {0x0137e, 0x0137f}, {0x0139b, 0x0139f}, {0x013f6, 0x013ff}, + {0x0169e, 0x0169f}, {0x016f2, 0x016ff}, {0x01712, 0x0171f}, + {0x01733, 0x01734}, {0x01738, 0x0173f}, {0x01753, 0x0175f}, + {0x01771, 0x0177f}, {0x017b5, 0x017d3}, {0x017de, 0x017df}, + {0x017eb, 0x017ef}, {0x017fb, 0x017ff}, {0x0180c, 0x0180d}, + {0x0181a, 0x0181f}, {0x01879, 0x0187f}, {0x018ab, 0x018af}, + {0x018f7, 0x018ff}, {0x0191e, 0x0193f}, {0x01942, 0x01943}, + {0x0196f, 0x0196f}, {0x01976, 0x0197f}, {0x019ad, 0x019c0}, + {0x019c9, 0x019cf}, {0x019dc, 0x019dd}, {0x01a18, 0x01a1d}, + {0x01a56, 0x01a7f}, {0x01a8b, 0x01a8f}, {0x01a9b, 0x01a9f}, + {0x01aaf, 0x01b04}, {0x01b35, 0x01b44}, {0x01b4d, 0x01b4f}, + {0x01b6c, 0x01b73}, {0x01b7e, 0x01b82}, {0x01ba2, 0x01bad}, + {0x01bbb, 0x01bff}, {0x01c25, 0x01c3a}, {0x01c4b, 0x01c4c}, + {0x01c81, 0x01cd2}, {0x01cd5, 0x01ce8}, {0x01cf2, 0x01cff}, + {0x01dc1, 0x01dff}, {0x01f17, 0x01f17}, {0x01f1f, 0x01f1f}, + {0x01f47, 0x01f47}, {0x01f4f, 0x01f4f}, {0x01f5a, 0x01f5a}, + {0x01f5e, 0x01f5e}, {0x01f7f, 0x01f7f}, {0x01fc5, 0x01fc5}, + {0x01fd5, 0x01fd5}, {0x01ff0, 0x01ff1}, {0x01fff, 0x01fff}, + {0x0200c, 0x0200f}, {0x02029, 0x0202e}, {0x02061, 0x0206f}, + {0x02073, 0x02073}, {0x02095, 0x0209f}, {0x020ba, 0x020ff}, + {0x0218b, 0x0218f}, {0x023ea, 0x023ff}, {0x02428, 0x0243f}, + {0x0244c, 0x0245f}, {0x026e2, 0x026e2}, {0x026e5, 0x026e7}, + {0x02705, 0x02705}, {0x0270b, 0x0270b}, {0x0274c, 0x0274c}, + {0x02753, 0x02755}, {0x02760, 0x02760}, {0x02796, 0x02797}, + {0x027bf, 0x027bf}, {0x027cd, 0x027cf}, {0x02b4e, 0x02b4f}, + {0x02b5b, 0x02bff}, {0x02c5f, 0x02c5f}, {0x02cf0, 0x02cf8}, + {0x02d27, 0x02d2f}, {0x02d67, 0x02d6e}, {0x02d71, 0x02d7f}, + {0x02d98, 0x02d9f}, {0x02daf, 0x02daf}, {0x02dbf, 0x02dbf}, + {0x02dcf, 0x02dcf}, {0x02ddf, 0x02dff}, {0x02e33, 0x02e7f}, + {0x02ef4, 0x02eff}, {0x02fd7, 0x02fef}, {0x02ffd, 0x02fff}, + {0x0302b, 0x0302f}, {0x03097, 0x0309a}, {0x03101, 0x03104}, + {0x0312f, 0x03130}, {0x031b8, 0x031bf}, {0x031e5, 0x031ef}, + {0x032ff, 0x032ff}, {0x04db7, 0x04dbf}, {0x09fcd, 0x09fff}, + {0x0a48e, 0x0a48f}, {0x0a4c8, 0x0a4cf}, {0x0a62d, 0x0a63f}, + {0x0a661, 0x0a661}, {0x0a670, 0x0a672}, {0x0a675, 0x0a67d}, + {0x0a699, 0x0a69f}, {0x0a6f1, 0x0a6f1}, {0x0a6f9, 0x0a6ff}, + {0x0a78e, 0x0a7fa}, {0x0a806, 0x0a806}, {0x0a823, 0x0a827}, + {0x0a82d, 0x0a82f}, {0x0a83b, 0x0a83f}, {0x0a879, 0x0a881}, + {0x0a8b5, 0x0a8cd}, {0x0a8db, 0x0a8f1}, {0x0a8fd, 0x0a8ff}, + {0x0a927, 0x0a92d}, {0x0a948, 0x0a95e}, {0x0a97e, 0x0a983}, + {0x0a9b4, 0x0a9c0}, {0x0a9da, 0x0a9dd}, {0x0a9e1, 0x0a9ff}, + {0x0aa2a, 0x0aa3f}, {0x0aa4c, 0x0aa4f}, {0x0aa5b, 0x0aa5b}, + {0x0aa7c, 0x0aa7f}, {0x0aab2, 0x0aab4}, {0x0aab8, 0x0aab8}, + {0x0aabf, 0x0aabf}, {0x0aac3, 0x0aada}, {0x0aae1, 0x0abbf}, + {0x0abe4, 0x0abea}, {0x0abed, 0x0abef}, {0x0abfb, 0x0abff}, + {0x0d7a5, 0x0d7af}, {0x0d7c8, 0x0d7ca}, {0x0d7fd, 0x0f8ff}, + {0x0fa2f, 0x0fa2f}, {0x0fa6f, 0x0fa6f}, {0x0fadb, 0x0faff}, + {0x0fb08, 0x0fb12}, {0x0fb19, 0x0fb1c}, {0x0fb37, 0x0fb37}, + {0x0fb3f, 0x0fb3f}, {0x0fb45, 0x0fb45}, {0x0fbb3, 0x0fbd2}, + {0x0fd41, 0x0fd4f}, {0x0fd91, 0x0fd91}, {0x0fdc9, 0x0fdef}, + {0x0fdff, 0x0fe0f}, {0x0fe1b, 0x0fe2f}, {0x0fe67, 0x0fe67}, + {0x0fe6d, 0x0fe6f}, {0x0fefd, 0x0ff00}, {0x0ffc0, 0x0ffc1}, + {0x0ffc9, 0x0ffc9}, {0x0ffd1, 0x0ffd1}, {0x0ffd9, 0x0ffd9}, + {0x0ffde, 0x0ffdf}, {0x0ffef, 0x0fffb}, {0x0ffff, 0x0ffff}, + {0x10027, 0x10027}, {0x1003e, 0x1003e}, {0x1004f, 0x1004f}, + {0x1005f, 0x1007f}, {0x100fc, 0x100ff}, {0x10104, 0x10106}, + {0x10135, 0x10136}, {0x1018c, 0x1018f}, {0x1019d, 0x101cf}, + {0x101fe, 0x1027f}, {0x1029e, 0x1029f}, {0x102d2, 0x102ff}, + {0x10324, 0x1032f}, {0x1034c, 0x1037f}, {0x103c4, 0x103c7}, + {0x103d7, 0x103ff}, {0x1049f, 0x1049f}, {0x104ab, 0x107ff}, + {0x10807, 0x10807}, {0x10836, 0x10836}, {0x1083a, 0x1083b}, + {0x1083e, 0x1083e}, {0x10860, 0x108ff}, {0x1091d, 0x1091e}, + {0x1093b, 0x1093e}, {0x10941, 0x109ff}, {0x10a02, 0x10a0f}, + {0x10a18, 0x10a18}, {0x10a35, 0x10a3f}, {0x10a49, 0x10a4f}, + {0x10a5a, 0x10a5f}, {0x10a81, 0x10aff}, {0x10b37, 0x10b38}, + {0x10b57, 0x10b57}, {0x10b74, 0x10b77}, {0x10b81, 0x10bff}, + {0x10c4a, 0x10e5f}, {0x10e80, 0x11082}, {0x110b1, 0x110ba}, + {0x110c2, 0x11fff}, {0x12370, 0x123ff}, {0x12464, 0x1246f}, + {0x12475, 0x12fff}, {0x13430, 0x1cfff}, {0x1d0f7, 0x1d0ff}, + {0x1d128, 0x1d128}, {0x1d166, 0x1d169}, {0x1d16e, 0x1d182}, + {0x1d186, 0x1d18b}, {0x1d1ab, 0x1d1ad}, {0x1d1df, 0x1d1ff}, + {0x1d243, 0x1d244}, {0x1d247, 0x1d2ff}, {0x1d358, 0x1d35f}, + {0x1d373, 0x1d3ff}, {0x1d49d, 0x1d49d}, {0x1d4a1, 0x1d4a1}, + {0x1d4a4, 0x1d4a4}, {0x1d4a8, 0x1d4a8}, {0x1d4ba, 0x1d4ba}, + {0x1d4c4, 0x1d4c4}, {0x1d50b, 0x1d50c}, {0x1d51d, 0x1d51d}, + {0x1d53f, 0x1d53f}, {0x1d547, 0x1d549}, {0x1d6a6, 0x1d6a7}, + {0x1d7cd, 0x1d7cd}, {0x1d801, 0x1efff}, {0x1f02d, 0x1f02f}, + {0x1f095, 0x1f0ff}, {0x1f10c, 0x1f10f}, {0x1f130, 0x1f130}, + {0x1f133, 0x1f13c}, {0x1f140, 0x1f141}, {0x1f144, 0x1f145}, + {0x1f148, 0x1f149}, {0x1f150, 0x1f156}, {0x1f159, 0x1f15e}, + {0x1f161, 0x1f178}, {0x1f17d, 0x1f17e}, {0x1f181, 0x1f189}, + {0x1f18f, 0x1f18f}, {0x1f192, 0x1f1ff}, {0x1f202, 0x1f20f}, + {0x1f233, 0x1f23f}, {0x1f24a, 0x1ffff}, {0x2a6d8, 0x2a6ff}, + {0x2b736, 0x2f7ff}, {0x2fa1f, 0x10ffff}, +}; + +static int find(int c, int tab[][2], int n) +{ + int l = 0; + int h = n - 1; + int m; + if (c < tab[0][0]) + return 0; + while (l <= h) { + m = (h + l) / 2; + if (c >= tab[m][0] && c <= tab[m][1]) + return 1; + if (c < tab[m][0]) + h = m - 1; + else + l = m + 1; + } + return 0; +} + +/* double-width characters */ +static int uc_isdw(int c) +{ + return c >= 0x1100 && find(c, dwchars, LEN(dwchars)); +} + +/* zero-width and combining characters */ +static int uc_iszw(int c) +{ + return c >= 0x0300 && find(c, zwchars, LEN(zwchars)); +} + +int uc_wid(char *s) +{ + int c = uc_code(s); + if (uc_iszw(c)) + return 0; + return uc_isdw(c) ? 2 : 1; +} + +/* nonprintable characters */ +int uc_isbell(char *s) +{ + int c = (unsigned char) *s; + if (c == ' ' || c == '\t' || c == '\n' || (c >= 0x20 && c < 0x7f)) + return 0; + c = uc_code(s); + return uc_iszw(c) || find(c, bchars, LEN(bchars)); +} + +/* combining characters */ +int uc_iscomb(char *s) +{ + int c = (unsigned char) *s; + if (c == ' ' || c == '\t' || c == '\n' || (c <= 0x7f && isprint(c))) + return 0; + return uc_acomb(uc_code(s)); +} + +int uc_word(char *ln, char *dst, int len, int off, char *ext) +{ + char *beg, *end; + if (!ln) + return 1; + beg = uc_chr(ln, off); + end = beg; + while (*end && (uc_kind(end) == 1 || + strchr(ext, (unsigned char) end[0]) != NULL)) + end = uc_next(end); + while (beg > ln && (uc_kind(uc_beg(ln, beg - 1)) == 1 || + strchr(ext, (unsigned char) beg[-1]) != NULL)) + beg = uc_beg(ln, beg - 1); + if (beg >= end) + return 1; + len = len - 1 < end - beg ? len - 1 : end - beg; + memcpy(dst, beg, len); + dst[len] = '\0'; + return 0; +} diff --git a/Apps/Neatvi/main/Source/vi.c b/Apps/Neatvi/main/Source/vi.c new file mode 100644 index 0000000..fba3863 --- /dev/null +++ b/Apps/Neatvi/main/Source/vi.c @@ -0,0 +1,2243 @@ +/* + * NEATVI Editor + * + * Copyright (C) 2015-2026 Ali Gholami Rudi + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include "vi.h" + +/* parts of the screen to update; returned from vc_* functions */ +#define VC_COL 1 /* only obtain cursor column from xoff */ +#define VC_ROW 2 /* only the current line was updated */ +#define VC_WIN 4 /* only the current window was updated */ +#define VC_ALT 8 /* only the other window was updated */ +#define VC_ALL 12 /* all windows were updated */ +#define VC_OK 16 /* already updated */ +#define VC_BAD 32 /* no updates, command failed */ + +static char vi_msg[EXLEN]; /* current message */ +static int vi_pending; /* keep the status line contents */ +static char vi_charlast[8]; /* the last character searched via f, t, F, or T */ +static int vi_charcmd; /* the character finding command */ +static int vi_arg1, vi_arg2; /* the first and second arguments */ +static int vi_ybuf; /* current yank buffer */ +static int vi_pcol; /* the column requested by | command */ +static int vi_scroll; /* scroll amount for ^f and ^d */ +static int vi_soset, vi_so; /* search offset; 1 in "/kw/1" */ +static int vi_insert; /* insert mode */ +static int vi_insoff; /* insert offset */ +static char vi_ai[128]; /* insert indentation for ai option */ +static int w_cnt = 1; /* window count */ +static int w_cur; /* active window identifier */ +static int w_tmp; /* temporary window */ +static char *w_path; /* saved window path */ +static int w_row, w_off, w_top, w_left; /* saved window configuration */ +static int glob_id[128]; /* global mark buffer IDs */ +static int ex_printed; /* 1: ex_print() was called, 2: shell output is printed */ +static struct sbuf ex_printsb; /* ex_print() buffer */ + +static char *vi_ledmod; /* led_print() data for the status line */ +static char *vi_ledins; /* led_print() data for xrow when vi_insert is one */ + +static int vc_status(void); + +static int xtd_set(int td) +{ + int old = xtd; + xtd = td; + return old; +} + +static int vi_wait(void) +{ + if (ex_printed) { + char *o = sbuf_done(&ex_printsb); + char *s = o, *r; + int td = xtd_set(+2); + while (s && *s && (r = strchr(s, '\n'))) { + *r = '\0'; + if (s != o) + term_chr('\n'); + led_print(s, xrows - 1, 0, xcols, xhl ? ex_filetype() : "", NULL); + s = r + 1; + } + free(o); + term_pos(xrows, 0); + free(led_prompt("[enter to continue]", "", &xkmap, xhl ? "---" : "___", NULL)); + led_reset(&vi_ledmod); + xtd_set(td); + ex_printed = 0; + return 1; + } + return 0; +} + +static void vi_drawmsg(void) +{ + if (!vi_pending) { + int td = xtd_set(+2); + syn_context('.', w_tmp ? 'Z' : 0); + led_print(vi_msg[0] ? vi_msg : "\n", xrows, 0, xcols, xhl ? "---" : "___", &vi_ledmod); + syn_context('.', 0); + vi_msg[0] = '\0'; + xtd_set(td); + } +} + +static void vi_drawquick(char *s, int row) +{ + int td = xtd_set(+2); + led_print(s, row, 0, xcols, xhl ? "---" : "___", NULL); + xtd_set(td); +} + +static void vi_drawrow(int row) +{ + char *s = lbuf_get(xb, row); + syn_context(s ? '.' : ',', xhll && row == xrow ? '^' : 0); + led_print(s ? s : "~", row - xtop, xleft, xcols, xhl ? ex_filetype() : "", + vi_insert && row == xrow ? &vi_ledins : NULL); + syn_context('.', 0); +} + +/* redraw the given row; if row is -1 redraws all rows */ +static void vi_drawagain(int xcol, int row) +{ + int i; + for (i = xtop; i < xtop + xrows; i++) + if (row < 0 || i == row) + vi_drawrow(i); + vi_drawmsg(); +} + +/* update the screen */ +static void vi_drawupdate(int otop) +{ + int i = 0; + if (otop != xtop) { + term_pos(0, 0); + term_room(otop - xtop); + if (xtop > otop) { + int n = MIN(xtop - otop, xrows); + for (i = 0; i < n; i++) + vi_drawrow(xtop + xrows - n + i); + } else { + int n = MIN(otop - xtop, xrows); + for (i = 0; i < n; i++) + vi_drawrow(xtop + i); + } + } + vi_drawmsg(); +} + +/* update the screen by replacing lines r1 to r2 with n lines */ +static void vi_drawfix(int r1, int del, int ins) +{ + int s1 = r1; + int i; + if (r1 >= xtop + xrows) + return; + if (r1 < xtop) { + s1 = xtop; + del = MAX(0, del - (xtop - r1)); + ins = MAX(0, ins - (xtop - r1)); + } + if (ins != del) { + term_pos(s1 - xtop, 0); + term_room(ins - del - (s1 - r1)); + } + /* new lines are visible */ + if (del > ins && s1 + ins < xtop + xrows) { + int beg = xtop + xrows - del + ins - (s1 - r1); + for (i = beg; i < xtop + xrows; i++) + if (i >= s1 + ins && i >= xtop) + vi_drawrow(i); + } + /* draw replaced lines */ + for (i = s1; i < xtop + xrows; i++) + if (i < s1 + ins || (!i && !s1 && !ins)) + vi_drawrow(i); +} + +static int vi_switch(int id) +{ + int beg = 0; + int cnt = term_rowx(); + if (id >= w_cnt) + return 1; + if (id != w_cur) { + char cmd[1024]; + char *old = w_path && w_path[0] ? w_path : "/"; + int row = w_row, off = w_off, top = w_top, left = w_left; + char *ec = "ew"; + if (w_path && strcmp(w_path, ex_path()) == 0) + ec = "e"; + snprintf(cmd, sizeof(cmd), "%s! %s", ec, old); + free(w_path); + w_path = uc_dup(ex_path()); + w_row = xrow, w_off = xoff, w_top = xtop, w_left = xleft; + ex_command(cmd); + xrow = row, xoff = off, xtop = top, xleft = left; + } + if (w_cnt == 2) { + int half = cnt / 2; + beg = id == 0 ? 0 : half; + cnt = id == 0 ? half : term_rowx() - half; + } + term_window(beg, cnt - 1); + w_cur = id; + return 0; +} + +static int vi_wsplit(void) +{ + if (w_cnt != 1) + return 1; + free(w_path); + w_cnt = 2; + w_path = uc_dup(ex_path()); + w_row = xrow, w_off = xoff, w_top = xtop, w_left = xleft; + vi_pending = 0; + return vi_switch(0); +} + +static int vi_wonly(void) +{ + if (w_cnt != 2) + return 1; + w_cnt = 1; + w_cur = 0; + vi_pending = 0; + return vi_switch(0); +} + +static int vi_wclose(void) +{ + if (w_cnt != 2) + return 1; + vi_switch(1 - w_cur); + return vi_wonly(); +} + +static int vi_wswap(void) +{ + if (w_cnt != 2) + return 1; + w_cur = 1 - w_cur; + return 0; +} + +static void vi_wfix(void) +{ + if (xrow < 0 || xrow >= lbuf_len(xb)) + xrow = lbuf_len(xb) ? lbuf_len(xb) - 1 : 0; + if (xtop > xrow) + xtop = xtop - xrows / 2 > xrow ? + MAX(0, xrow - xrows / 2) : xrow; + if (xtop + xrows <= xrow) + xtop = xtop + xrows + xrows / 2 <= xrow ? + xrow - xrows / 2 : xrow - xrows + 1; + if (!vi_insert) + xoff = ren_noeol(lbuf_get(xb, xrow), xoff); +} + +static int vi_wmirror(void) +{ + vi_wonly(); + return vi_wsplit(); +} + +static int vi_buf[128]; +static int vi_buflen; + +static int vi_read(void) +{ + return vi_buflen ? vi_buf[--vi_buflen] : term_read(0); +} + +static void vi_back(int c) +{ + if (vi_buflen < LEN(vi_buf) && c >= 0) + vi_buf[vi_buflen++] = c; +} + +/* + * Skip known terminal input escape sequences. There are four cases: + * + * xterm sequences: \33[A ... \33[Z + * vt sequences: \33[1~ ... \33[35~ + * direct UTF-8: \33[0;1u ... \33[1114111;8u + * \33[0;1~ ... \33[1114111;8~ + */ +static int vi_readiseq(void) +{ + int k = vi_buflen ? vi_read() : term_read(1); + if (k != '[') { + vi_back(k); + return 0; + } + k = vi_read(); + if (k == '[') + k = vi_read(); + if ('A' <= k && k <= 'Z') + return 1; + while (('0' <= k && k <= '9') || k == ';') + k = vi_read(); + return 1; +} + +/* map cursor horizontal position to terminal column number */ +static int vi_pos(char *s, int pos) +{ + return dir_context(s ? s : "") >= 0 ? pos - xleft : xleft + xcols - pos - 1; +} + +static char *vi_prompt(char *msg, int *kmap, char *hist) +{ + char *r, *s; + int td = xtd_set(+2); + term_pos(xrows, 0); + s = led_prompt(msg, "", kmap, xhl ? "-ex" : "___", xhist != 0 ? hist : NULL); + xtd_set(td); + led_reset(&vi_ledmod); + if (!s) + return NULL; + r = uc_dup(strlen(s) >= strlen(msg) ? s + strlen(msg) : s); + free(s); + return r; +} + +/* read an ex input line */ +char *ex_read(char *msg) +{ + struct sbuf sb = {0}; + int c, td; + char *s; + if (xvis) { + term_pos(xrows - 1, 0); + td = xtd_set(+2); + s = led_prompt(msg, "", &xkmap, xhl ? "-ex" : "___", NULL); + xtd_set(td); + if (s) + term_chr('\n'); + return s; + } + while ((c = getchar()) != EOF && c != '\n') + sbuf_chr(&sb, c); + if (c == EOF) { + sbuf_free(&sb); + return NULL; + } + return sbuf_done(&sb); +} + +/* show an ex message */ +void ex_show(char *msg, ...) +{ + char buf[256]; + va_list ap; + va_start(ap, msg); + vsnprintf(buf, sizeof(buf), msg, ap); + va_end(ap); + if (xvis) { + snprintf(vi_msg, sizeof(vi_msg), "%s", buf); + vi_pending = 0; + vi_drawmsg(); + term_commit(); + vi_pending = 1; + } else { + printf("%s\n", buf); + } +} + +/* print an ex output line */ +void ex_print(char *line) +{ + if (vi_insert) { + led_print(line, xrows, 0, xcols, xhl ? "---" : "___", &vi_ledmod); + } else if (xvis) { + if (line) + sbuf_str(&ex_printsb, line); + if (line && (!line[0] || line[strlen(line) - 1] != '\n')) + sbuf_chr(&ex_printsb, '\n'); + if (!line) { + term_pos(xrows - 1, 0); + term_kill(); + term_commit(); + } + ex_printed = line ? 1 : 2; + } else { + if (line) + printf("%s", line); + } +} + +static char *reg_getln(int h) +{ + return reg_get(0x80 | h, NULL); +} + +static void reg_putln(int h, char *s) +{ + char *old = reg_get(0x80 | h, NULL); + struct sbuf sb = {0}; + int i = 0; + if (xhist == 0 || s == NULL || s[0] == '\0' || s[0] == '\n') + return; + /* ignore duplicate lines */ + if (old != NULL) { + while (s[i] && old[i] == s[i]) + i++; + if (!s[i] && old[i] == '\n') + return; + } + /* omit old lines */ + if (xhist > 0 && old != NULL) { + char *end = old; + for (i = 1; end != NULL && i < xhist; i++) + end = strchr(end == old ? end : end + 1, '\n'); + if (end != NULL) + end[1] = '\0'; + } + /* add the new line */ + sbuf_str(&sb, s); + if (strchr(s, '\n') == NULL) + sbuf_chr(&sb, '\n'); + if (old != NULL) + sbuf_str(&sb, old); + reg_put(0x80 | h, sbuf_buf(&sb), 1); + sbuf_free(&sb); +} + +static int vi_yankbuf(void) +{ + int c = vi_read(); + if (c == '"') + return (c = vi_read()) == '\\' ? 0x80 | vi_read() : c; + vi_back(c); + return 0; +} + +static int vi_prefix(void) +{ + int n = 0; + int c = vi_read(); + if ((c >= '1' && c <= '9')) { + while (isdigit(c)) { + n = n * 10 + c - '0'; + c = vi_read(); + } + } + vi_back(c); + return n; +} + +static int vi_col2off(struct lbuf *lb, int row, int col) +{ + char *ln = lbuf_get(lb, row); + return ln ? ren_off(ln, col) : 0; +} + +static int vi_off2col(struct lbuf *lb, int row, int off) +{ + char *ln = lbuf_get(lb, row); + return ln ? ren_pos(ln, off) : 0; +} + +static int vi_nextoff(struct lbuf *lb, int dir, int *row, int *off) +{ + int o = *off + dir; + if (o < 0 || !lbuf_get(lb, *row) || o >= uc_slen(lbuf_get(lb, *row))) + return 1; + *off = o; + return 0; +} + +static int vi_nextcol(struct lbuf *lb, int dir, int *row, int *off) +{ + char *ln = lbuf_get(lb, *row); + int col = ln ? ren_pos(ln, *off) : 0; + int o = ln ? ren_next(ln, col, dir) : -1; + if (o < 0) + return -1; + *off = ren_off(ln, o); + return 0; +} + +static int vi_findchar(struct lbuf *lb, char *cs, int cmd, int n, int *row, int *off) +{ + if (cs != vi_charlast) + strcpy(vi_charlast, cs); + vi_charcmd = cmd; + return lbuf_findchar(lb, cs, cmd, n, row, off); +} + +static int vi_next(int cmd, int cnt, int *row, int *off) +{ + char *kwd; + int r = *row; + int o = *off; + char *failed = NULL; + int len = 0; + int i, dir; + if (!lbuf_len(xb) || ex_kwd(&kwd, &dir)) + return 1; + dir = cmd == 'N' ? -dir : dir; + o = *off; + for (i = 0; i < cnt; i++) { + if (lbuf_search(xb, kwd, dir, &r, &o, &len)) { + failed = " not found"; + break; + } + if (i + 1 < cnt && cmd == '/') + o += len; + } + if (!failed) { + *row = r; + *off = o; + if (vi_soset) { + *off = -1; + if (*row + vi_so < 0 || *row + vi_so >= lbuf_len(xb)) + failed = " bad offset"; + else + *row += vi_so; + } + } + if (failed != NULL) + snprintf(vi_msg, sizeof(vi_msg), "/%s/%s", kwd, failed ? failed : ""); + return failed != NULL; +} + +static int vi_search(int cmd, int cnt, int *row, int *off) +{ + char sign[4] = {cmd}; + struct sbuf sb = {0}; + char *kw = vi_prompt(sign, &xkmap, reg_getln('/')); + char *re; + int ret = 0; + if (!kw) + return 1; + sbuf_chr(&sb, cmd); + sbuf_str(&sb, kw); + free(kw); + kw = sbuf_buf(&sb); + while ((re = re_read(&kw))) { + ex_kwdset(re[0] ? re : NULL, cmd == '/' ? +1 : -1); + if (re[0]) { + reg_putln('/', re); + reg_put('/', re, 0); + } + while (isspace((unsigned char) *kw)) + kw++; + vi_soset = (kw[0] >= '0' && kw[0] <= '9') || kw[0] == '+' || kw[0] == '-'; + vi_so = 0; + if (vi_soset) { + while (kw[0] == '+' || kw[0] == '-') + vi_so += *kw++ == '+' ? +1 : -1; + if (kw[0] >= '0' && kw[0] < '9') + vi_so = kw[-1] == '-' ? -atoi(kw) : atoi(kw); + while (kw[0] >= '0' && kw[0] < '9') + kw++; + } + free(re); + if ((ret = vi_next(cmd, cnt, row, off))) + break; + while (isspace((unsigned char) *kw)) + kw++; + if (!*kw || *kw != ';') + break; + kw++; + while (isspace((unsigned char) *kw)) + kw++; + if (!*kw || (*kw != '/' && *kw != '?')) + break; + } + sbuf_free(&sb); + return ret; +} + +static char *vi_char(int (*next)(void), int kmap) +{ + static char buf[8]; + int c1, c2; + int i, n; + int lnmode; + int c = next(); + switch (c) { + case TK_CTL('v'): + buf[0] = next(); + buf[1] = '\0'; + return buf; + case TK_CTL('k'): + c1 = next(); + if (TK_INT(c1)) + return NULL; + if (c1 == TK_CTL('k')) + return ""; + c2 = next(); + if (TK_INT(c2)) + return NULL; + return conf_digraph(c1, c2); + case TK_CTL('p'): + return reg_get(0, &lnmode); + case TK_CTL('r'): + c1 = next(); + return c1 > 0 ? reg_get(c1, &lnmode) : NULL; + } + if (TK_INT(c)) + return NULL; + if ((c & 0xc0) == 0xc0) { + buf[0] = c; + n = uc_len_expect(c); + for (i = 1; i < n; i++) + buf[i] = next(); + buf[n] = '\0'; + return buf; + } + return kmap_map(kmap, c); +} + +/* read a line motion */ +static int vi_motionln(int *row, int cmd) +{ + int cnt = (vi_arg1 ? vi_arg1 : 1) * (vi_arg2 ? vi_arg2 : 1); + int c = vi_read(); + int mark, mark_row, mark_off; + switch (c) { + case '\n': + case '+': + *row = MIN(*row + cnt, lbuf_len(xb) - 1); + break; + case '-': + *row = MAX(*row - cnt, 0); + break; + case '_': + *row = MIN(*row + cnt - 1, lbuf_len(xb) - 1); + break; + case '\'': + if ((mark = vi_read()) <= 0) + return -1; + if (lbuf_jump(xb, mark, &mark_row, &mark_off)) + return -1; + *row = mark_row; + break; + case 'j': + *row = MIN(*row + cnt, lbuf_len(xb) - 1); + break; + case 'k': + *row = MAX(*row - cnt, 0); + break; + case 'G': + *row = (vi_arg1 || vi_arg2) ? cnt - 1 : lbuf_len(xb) - 1; + break; + case 'H': + *row = MIN(xtop + cnt - 1, lbuf_len(xb) - 1); + break; + case 'L': + *row = MIN(xtop + xrows - 1 - cnt + 1, lbuf_len(xb) - 1); + break; + case 'M': + *row = MIN(xtop + xrows / 2, lbuf_len(xb) - 1); + break; + default: + if (c == cmd) { + *row = MIN(*row + cnt - 1, lbuf_len(xb) - 1); + break; + } + if (c == '%' && (vi_arg1 || vi_arg2)) { + if (cnt > 100) + return -1; + *row = MAX(0, lbuf_len(xb) - 1) * cnt / 100; + break; + } + vi_back(c); + return 0; + } + if (*row < 0) + *row = 0; + return c; +} + +/* read a motion */ +static int vi_motion(int *row, int *off) +{ + char cw[120], kw[128]; + int cnt = (vi_arg1 ? vi_arg1 : 1) * (vi_arg2 ? vi_arg2 : 1); + char *ln = lbuf_get(xb, *row); + int dir = dir_context(ln ? ln : ""); + int mark, mark_row, mark_off; + char *cs; + int mv; + int i; + if ((mv = vi_motionln(row, 0))) { + *off = -1; + return mv; + } + mv = vi_read(); + switch (mv) { + case 'f': + if (!(cs = vi_char(vi_read, xkmap))) + return -1; + if (vi_findchar(xb, cs, mv, cnt, row, off)) + return -1; + break; + case 'F': + if (!(cs = vi_char(vi_read, xkmap))) + return -1; + if (vi_findchar(xb, cs, mv, cnt, row, off)) + return -1; + break; + case ';': + if (!vi_charlast[0]) + return -1; + if (vi_findchar(xb, vi_charlast, vi_charcmd, cnt, row, off)) + return -1; + break; + case ',': + if (!vi_charlast[0]) + return -1; + if (vi_findchar(xb, vi_charlast, vi_charcmd, -cnt, row, off)) + return -1; + break; + case 'h': + for (i = 0; i < cnt; i++) + if (vi_nextcol(xb, -1 * dir, row, off)) + break; + break; + case 'l': + for (i = 0; i < cnt; i++) + if (vi_nextcol(xb, +1 * dir, row, off)) + break; + break; + case 't': + if (!(cs = vi_char(vi_read, xkmap))) + return -1; + if (vi_findchar(xb, cs, mv, cnt, row, off)) + return -1; + break; + case 'T': + if (!(cs = vi_char(vi_read, xkmap))) + return -1; + if (vi_findchar(xb, cs, mv, cnt, row, off)) + return -1; + break; + case 'B': + for (i = 0; i < cnt; i++) + if (lbuf_wordend(xb, 1, -1, row, off)) + break; + break; + case 'E': + for (i = 0; i < cnt; i++) + if (lbuf_wordend(xb, 1, +1, row, off)) + break; + break; + case 'W': + for (i = 0; i < cnt; i++) + if (lbuf_wordbeg(xb, 1, +1, row, off)) + break; + break; + case 'b': + for (i = 0; i < cnt; i++) + if (lbuf_wordend(xb, 0, -1, row, off)) + break; + break; + case 'e': + for (i = 0; i < cnt; i++) + if (lbuf_wordend(xb, 0, +1, row, off)) + break; + break; + case 'w': + for (i = 0; i < cnt; i++) + if (lbuf_wordbeg(xb, 0, +1, row, off)) + break; + break; + case '{': + for (i = 0; i < cnt; i++) + if (lbuf_paragraphbeg(xb, -1, row, off)) + break; + break; + case '}': + for (i = 0; i < cnt; i++) + if (lbuf_paragraphbeg(xb, +1, row, off)) + break; + break; + case '[': + if (vi_read() != '[') + return -1; + for (i = 0; i < cnt; i++) + if (lbuf_sectionbeg(xb, -1, conf_section(ex_filetype()), row, off)) + break; + break; + case ']': + if (vi_read() != ']') + return -1; + for (i = 0; i < cnt; i++) + if (lbuf_sectionbeg(xb, +1, conf_section(ex_filetype()), row, off)) + break; + break; + case '0': + *off = 0; + break; + case '^': + *off = lbuf_indents(xb, *row); + break; + case '$': + *off = lbuf_eol(xb, *row); + break; + case '|': + *off = vi_col2off(xb, *row, cnt - 1); + vi_pcol = cnt - 1; + break; + case '/': + if (vi_search(mv, cnt, row, off)) + return -1; + break; + case '?': + if (vi_search(mv, cnt, row, off)) + return -1; + break; + case 'n': + if (vi_next(mv, cnt, row, off)) + return -1; + break; + case 'N': + if (vi_next(mv, cnt, row, off)) + return -1; + break; + case TK_CTL('a'): + if (uc_word(lbuf_get(xb, *row), cw, sizeof(cw), *off, "") != 0) + return -1; + snprintf(kw, sizeof(kw), "\\<%s\\>", cw); + ex_kwdset(kw, +1); + vi_soset = 0; + if (vi_next('n', cnt, row, off)) + return -1; + break; + case ' ': + for (i = 0; i < cnt; i++) + if (vi_nextoff(xb, +1, row, off)) + break; + break; + case 127: + case TK_CTL('h'): + for (i = 0; i < cnt; i++) + if (vi_nextoff(xb, -1, row, off)) + break; + break; + case '`': + if ((mark = vi_read()) <= 0) + return -1; + if (lbuf_jump(xb, mark, &mark_row, &mark_off)) + return -1; + *row = mark_row; + *off = mark_off; + break; + case '%': + if (lbuf_pair(xb, row, off)) + return -1; + break; + default: + vi_back(mv); + return 0; + } + return mv; +} + +static void swap(int *a, int *b) +{ + int t = *a; + *a = *b; + *b = t; +} + +static char *lbuf_region(struct lbuf *lb, int r1, int o1, int r2, int o2) +{ + struct sbuf sb = {0}; + char *s1, *s2, *s3; + if (r1 == r2) + return uc_sub(lbuf_get(lb, r1), o1, o2); + s1 = uc_sub(lbuf_get(lb, r1), o1, -1); + s3 = uc_sub(lbuf_get(lb, r2), 0, o2); + s2 = lbuf_cp(lb, r1 + 1, r2); + sbuf_str(&sb, s1); + sbuf_str(&sb, s2); + sbuf_str(&sb, s3); + free(s1); + free(s2); + free(s3); + return sbuf_done(&sb); +} + +static int vi_yank(int r1, int o1, int r2, int o2, int lnmode) +{ + char *region; + region = lbuf_region(xb, r1, lnmode ? 0 : o1, r2, lnmode ? -1 : o2); + reg_put(vi_ybuf, region, lnmode); + free(region); + xrow = r1; + xoff = lnmode ? xoff : o1; + return 0; +} + +static int vi_delete(int r1, int o1, int r2, int o2, int lnmode) +{ + char *region; + region = lbuf_region(xb, r1, lnmode ? 0 : o1, r2, lnmode ? -1 : o2); + reg_put(vi_ybuf, region, lnmode); + free(region); + if (!lnmode) { + struct sbuf sb = {0}; + char *s1 = lbuf_get(xb, r1); + char *s2 = lbuf_get(xb, r2); + sbuf_mem(&sb, s1, s1 ? uc_chr(s1, o1) - s1 : 0); + sbuf_str(&sb, s2 ? uc_chr(s2, o2) : ""); + lbuf_edit(xb, sbuf_buf(&sb), r1, r2 + 1); + sbuf_free(&sb); + } else { + lbuf_edit(xb, NULL, r1, r2 + 1); + } + xrow = r1; + xoff = lnmode ? lbuf_indents(xb, xrow) : o1; + vi_drawfix(r1, r2 - r1 + 1, !lnmode); + return VC_OK; +} + +static int linecount(char *s) +{ + int n; + for (n = 0; s; n++) + if ((s = strchr(s, '\n'))) + s++; + return n; +} + +static char *vi_help(char *ln) +{ + static char ac[128]; + char cmd[128] = "ra \\~"; + char *info = " "; + char *beg = NULL, *end = NULL; + int lastkind = 0; + char *s, *r; + /* execute \~ register, if defined */ + if (reg_get(0x80 | '~', NULL)) { + reg_put('~', ln, 0); + if (!ex_command(cmd)) { + snprintf(ac, sizeof(ac), "%s", reg_get('~', NULL)); + if (strchr(ac, '\n') != NULL) + *strchr(ac, '\n') = '\0'; + return ac; + } + return NULL; + } + /* extract tag information */ + for (s = ln; s && *s; s = uc_next(s)) { + int kind = uc_kind(s); + if (lastkind != 1 && kind == 1) + beg = s; + if (lastkind == 1 && kind != 1) + end = s; + lastkind = kind; + } + end = lastkind == 1 ? s : end; + if (beg != NULL) { + char tag[128]; + int pos = 0, dir = 0; + if (beg != NULL && end - beg + 1 > sizeof(tag)) + end = beg + sizeof(tag) - 1; + memcpy(tag, beg, end - beg); + tag[end - beg] = '\0'; + if (!tag_find(tag, &pos, dir, NULL, 0, cmd, sizeof(cmd))) + if ((r = strrchr(cmd, '"')) != NULL) + info = r + 1; + } + led_print(info, xrows, 0, xcols, xhl ? "---" : "___", &vi_ledmod); + term_pos(xrow - xtop, 0); + return NULL; +} + +static int vi_indents(char *ln, char *in, int size) +{ + int cnt = 0; + while (cnt < size && ln && (*ln == ' ' || *ln == '\t')) + in[cnt++] = *ln++; + in[cnt] = '\0'; + return cnt; +} + +static int vi_change(int r1, int o1, int r2, int o2, int lnmode) +{ + struct sbuf sb = {0}; + char *s1 = lbuf_get(xb, r1); + char *s2 = lbuf_get(xb, r2); + char *region = lbuf_region(xb, r1, lnmode ? 0 : o1, r2, lnmode ? -1 : o2); + reg_put(vi_ybuf, region, lnmode); + free(region); + if (xai && lnmode) + vi_indents(s1, vi_ai, sizeof(vi_ai) - 1); + if (lnmode) { + sbuf_str(&sb, xai ? vi_ai : ""); + sbuf_str(&sb, "\n"); + } else { + sbuf_mem(&sb, s1, s1 ? uc_chr(s1, o1) - s1 : 0); + sbuf_str(&sb, s2 ? uc_chr(s2, o2) : ""); + } + lbuf_edit(xb, sbuf_buf(&sb), r1, r2 + 1); + sbuf_free(&sb); + xrow = r1; + xoff = xai && lnmode ? lbuf_indents(xb, r1) : o1; + vi_drawfix(r1, r2 - r1 + 1, 1); + vi_insoff = xoff; + vi_insert = 1; + led_reset(&vi_ledins); + return VC_OK; +} + +static int vi_case(int r1, int o1, int r2, int o2, int lnmode, int cmd) +{ + char *region = lbuf_region(xb, r1, lnmode ? 0 : o1, r2, lnmode ? -1 : o2); + char *s = region; + while (*s) { + int c = (unsigned char) s[0]; + if (c <= 0x7f) { + if (cmd == 'u') + s[0] = tolower(c); + if (cmd == 'U') + s[0] = toupper(c); + if (cmd == '~') + s[0] = islower(c) ? toupper(c) : tolower(c); + } + s = uc_next(s); + } + if (!lnmode) { + struct sbuf sb = {0}; + char *s1 = lbuf_get(xb, r1); + char *s2 = lbuf_get(xb, r2); + sbuf_mem(&sb, s1, s1 ? uc_chr(s1, o1) - s1 : 0); + sbuf_str(&sb, region); + sbuf_str(&sb, s2 ? uc_chr(s2, o2) : ""); + lbuf_edit(xb, sbuf_buf(&sb), r1, r2 + 1); + sbuf_free(&sb); + } else { + lbuf_edit(xb, region, r1, r2 + 1); + } + xrow = r2; + xoff = lnmode ? lbuf_indents(xb, r2) : o2; + free(region); + vi_drawfix(r1, r2 - r1 + 1, r2 - r1 + 1); + return VC_OK; +} + +static int vi_pipe(int r1, int r2) +{ + char *text; + char *rep; + int kmap = 0; + char *cmd = vi_prompt("!", &kmap, reg_getln('!')); + if (!cmd) + return 0; + reg_put('!', cmd, 1); + reg_putln('!', cmd); + text = lbuf_cp(xb, r1, r2 + 1); + rep = cmd_pipe(cmd, text, 1); + if (rep) + lbuf_edit(xb, rep, r1, r2 + 1); + free(cmd); + free(text); + free(rep); + return VC_WIN; +} + +static int vi_shift(int r1, int r2, int dir) +{ + struct sbuf sb = {0}; + char *ln; + int i; + for (i = r1; i <= r2; i++) { + if (!(ln = lbuf_get(xb, i))) + continue; + if (dir > 0) { + if (ln[0] != '\n') + sbuf_chr(&sb, '\t'); + } else { + ln = ln[0] == ' ' || ln[0] == '\t' ? ln + 1 : ln; + } + sbuf_str(&sb, ln); + lbuf_edit(xb, sbuf_buf(&sb), i, i + 1); + sbuf_free(&sb); + } + xrow = r1; + xoff = lbuf_indents(xb, xrow); + vi_drawfix(r1, r2 - r1 + 1, r2 - r1 + 1); + return VC_OK; +} + +static int vc_motion(int cmd) +{ + int r1 = xrow, r2 = xrow; /* region rows */ + int o1 = xoff, o2 = xoff; /* visual region columns */ + int lnmode = 0; /* line-based region */ + int mv; + vi_arg2 = vi_prefix(); + if (vi_arg2 < 0) + return VC_BAD; + o1 = ren_noeol(lbuf_get(xb, r1), o1); + o2 = o1; + if ((mv = vi_motionln(&r2, cmd))) { + o2 = -1; + } else if (!(mv = vi_motion(&r2, &o2))) { + vi_read(); + return 0; + } + if (mv < 0) + return VC_BAD; + lnmode = o2 < 0; + if (lnmode) { + o1 = 0; + o2 = lbuf_eol(xb, r2); + } + if (r1 > r2) { + swap(&r1, &r2); + swap(&o1, &o2); + } + if (r1 == r2 && o1 > o2) + swap(&o1, &o2); + o1 = ren_noeol(lbuf_get(xb, r1), o1); + if (!lnmode && strchr("fFtTeE%", mv)) + if (o2 < lbuf_eol(xb, r2)) + o2 = ren_noeol(lbuf_get(xb, r2), o2) + 1; + if (cmd == 'y') + return vi_yank(r1, o1, r2, o2, lnmode); + if (cmd == 'd') + return vi_delete(r1, o1, r2, o2, lnmode); + if (cmd == 'c') + return vi_change(r1, o1, r2, o2, lnmode); + if (cmd == '~' || cmd == 'u' || cmd == 'U') + return vi_case(r1, o1, r2, o2, lnmode, cmd); + if (cmd == '>' || cmd == '<') + return vi_shift(r1, r2, cmd == '>' ? +1 : -1); + if (cmd == '!') { + if (mv == '{' || mv == '}') + if (lbuf_get(xb, r2) && lbuf_get(xb, r2)[0] == '\n' && r1 < r2) + r2--; + return vi_pipe(r1, r2); + } + return 0; +} + +static int vc_insert(int cmd) +{ + char in[sizeof(vi_ai) + 1]; + char *ln = lbuf_get(xb, xrow); + if (cmd == 'I') + xoff = lbuf_indents(xb, xrow); + if (cmd == 'A') + xoff = lbuf_eol(xb, xrow); + if ((cmd == 'o' || cmd == 'O') && xai) + vi_indents(ln, vi_ai, sizeof(vi_ai) - 1); + if (cmd == 'o' && ln) + xrow++; + if (cmd == 'a') + xoff++; + if (!ln || ln[0] == '\n') + xoff = 0; + if ((cmd != 'o' && cmd != 'O') && !ln) + lbuf_edit(xb, "\n", xrow, xrow); + if (cmd == 'o' || cmd == 'O') { + snprintf(in, sizeof(in), "%s\n", vi_ai); + lbuf_edit(xb, xai ? in : "\n", xrow, xrow); + } + if (cmd == 'o' || cmd == 'O') + xoff = xai ? lbuf_indents(xb, xrow) : 0; + if ((cmd == 'o' || cmd == 'O') && ln) + vi_drawfix(xrow, 0, 1); + if (cmd == 'O' && xhll && ln) + vi_drawrow(xrow + 1); + if (!ln) + vi_drawrow(0); + vi_insoff = xoff; + vi_insert = 1; + led_reset(&vi_ledins); + return VC_OK; +} + +static void vi_edit(int off, int del, char *ins) +{ + char *ln = lbuf_get(xb, xrow); + struct sbuf sb = {0}; + char *pos = ln ? uc_chr(ln, off) : NULL; + char *end = pos ? uc_chr(pos, del) : NULL; + char *last = strrchr(ins, '\n'); + int lncnt = linecount(ins); + int row = xrow; + last = last ? last + 1 : ins; + sbuf_mem(&sb, ln, pos ? pos - ln : 0); + sbuf_str(&sb, ins); + sbuf_str(&sb, end && end[0] ? end : "\n"); + lbuf_edit(xb, sbuf_buf(&sb), xrow, xrow + 1); + vi_drawrow(row); + xrow += lncnt - 1; + xoff = xoff - del + uc_slen(last) - (lncnt > 1 ? off : 0); + vi_insoff = lncnt > 1 ? 0 : vi_insoff; + if (lncnt > 1) + led_reset(&vi_ledins); + if (lncnt > 1) + vi_drawfix(row + 1, 0, lncnt - 1); + sbuf_free(&sb); +} + +static int vi_lastword(char *s, int off) +{ + char *r = uc_chr(s, off); + int kind = -1; + while (r > s) { + r = uc_beg(s, r - 1); + off--; + if (kind >= 0 && uc_kind(r) != kind) + return off + 1; + if (kind < 0 && !uc_isspace(r)) + kind = uc_kind(r); + } + return off; +} + +static int vc_insertcmd(void) +{ + int c = vi_read(); + char *s = NULL; + int off; + switch (c) { + case TK_CTL('f'): + xkmap = xkmap_alt; + return VC_OK; + case TK_CTL('e'): + xkmap = 0; + return VC_OK; + case TK_CTL('h'): + case 127: + if (xoff > vi_insoff) + vi_edit(xoff - 1, 1, ""); + return VC_OK; + case TK_CTL('u'): + if (xoff > vi_insoff) + vi_edit(vi_insoff, xoff - vi_insoff, ""); + return VC_OK; + case TK_CTL('w'): + s = lbuf_get(xb, xrow); + off = vi_lastword(s, xoff); + off = MAX(off, vi_insoff); + if (off < xoff) + vi_edit(off, xoff - off, ""); + return VC_OK; + case TK_CTL('t'): + vi_edit(0, 0, "\t"); + vi_insoff = vi_insoff > 0 ? vi_insoff + 1 : 0; + return VC_OK; + case TK_CTL('d'): + s = lbuf_get(xb, xrow); + if (s[0] == ' ' || s[0] == '\t') { + vi_edit(0, 1, ""); + vi_insoff = vi_insoff > 0 ? vi_insoff - 1 : 0; + } + return VC_OK; + case TK_CTL('a'): + if (1) { + char cmp[128]; + char *ln = uc_sub(lbuf_get(xb, xrow), 0, xoff); + char *ac = vi_help(ln); + if (ac != NULL) + snprintf(cmp, sizeof(cmp), "%s", ac); + free(ln); + } + return VC_OK; + case '\n': + if (xai) { + char *ln = lbuf_get(xb, xrow); + char in[LEN(vi_ai) + 1]; + int sz = MIN(LEN(in) - 2, xoff); + int indents = vi_indents(ln, in, sz); + int noindents = indents == sz; + snprintf(vi_ai, sizeof(vi_ai), "%s", in); + snprintf(in, sizeof(in), "\n%s", vi_ai); + vi_edit(noindents ? 0 : xoff, noindents ? xoff : 0, in); + } else { + vi_edit(xoff, 0, "\n"); + } + return VC_OK; + default: + if (c == TK_ESC) + vi_readiseq(); + if (TK_INT(c)) { + char *ln = lbuf_get(xb, xrow); + if (xai && ln[lbuf_indents(xb, xrow)] == '\n') { + lbuf_edit(xb, "\n", xrow, xrow + 1); + xoff = 0; + } + vi_insert = 0; + xoff = MAX(0, xoff - 1); + return VC_OK; + } + } + vi_back(c); + if ((s = vi_char(vi_read, xkmap))) + vi_edit(xoff, 0, s); + return VC_OK; +} + +static int vc_put(int cmd) +{ + int cnt = MAX(1, vi_arg1); + int lnmode; + char *buf = reg_get(vi_ybuf, &lnmode); + int lncnt = 0; + int i; + if (!buf) + snprintf(vi_msg, sizeof(vi_msg), "yank buffer empty"); + if (!buf || !buf[0]) + return 0; + if (lnmode) { + struct sbuf sb = {0}; + for (i = 0; i < cnt; i++) + sbuf_str(&sb, buf); + if (cmd == 'p' && lbuf_len(xb)) + xrow++; + lbuf_edit(xb, sbuf_buf(&sb), xrow, xrow); + lncnt = linecount(sbuf_buf(&sb)); + xoff = lbuf_indents(xb, xrow); + sbuf_free(&sb); + } else { + struct sbuf sb = {0}; + char *ln = xrow < lbuf_len(xb) ? lbuf_get(xb, xrow) : "\n"; + int off = ren_noeol(ln, xoff) + (ln[0] != '\n' && cmd == 'p'); + char *s = uc_sub(ln, 0, off); + sbuf_str(&sb, s); + free(s); + for (i = 0; i < cnt; i++) + sbuf_str(&sb, buf); + s = uc_sub(ln, off, -1); + sbuf_str(&sb, s); + free(s); + lbuf_edit(xb, sbuf_buf(&sb), xrow, xrow + 1); + lncnt = linecount(sbuf_buf(&sb)) - 1; + xoff = off + uc_slen(buf) * cnt - 1; + sbuf_free(&sb); + } + vi_drawfix(xrow, 1, lncnt); + return VC_OK; +} + +static int join_spaces(char *prev, char *next) +{ + int prevlen = strlen(prev); + if (!prev[0]) + return 0; + if (prev[prevlen - 1] == ' ' || next[0] == ')') + return 0; + return prev[prevlen - 1] == '.' ? 2 : 1; +} + +static int vc_join(void) +{ + struct sbuf sb = {0}; + int cnt = vi_arg1 <= 1 ? 2 : vi_arg1; + int beg = xrow; + int end = xrow + cnt; + int off = 0; + int i; + if (!lbuf_get(xb, beg) || !lbuf_get(xb, end - 1)) + return VC_BAD; + for (i = beg; i < end; i++) { + char *ln = lbuf_get(xb, i); + char *lnend = strchr(ln, '\n'); + int spaces; + if (i > beg) + while (ln[0] == ' ' || ln[0] == '\t') + ln++; + spaces = i > beg ? join_spaces(sbuf_buf(&sb), ln) : 0; + off = uc_slen(sbuf_buf(&sb)); + while (spaces--) + sbuf_chr(&sb, ' '); + sbuf_mem(&sb, ln, lnend - ln); + } + sbuf_chr(&sb, '\n'); + lbuf_edit(xb, sbuf_buf(&sb), beg, end); + xoff = off; + sbuf_free(&sb); + vi_drawfix(xrow, end - beg, 1); + return VC_OK; +} + +static int vi_scrollforward(int cnt) +{ + if (xtop >= lbuf_len(xb) - 1) + return 1; + xtop = MIN(lbuf_len(xb) - 1, xtop + cnt); + xrow = MAX(xrow, xtop); + return 0; +} + +static int vi_scrollbackward(int cnt) +{ + if (xtop == 0) + return 1; + xtop = MAX(0, xtop - cnt); + xrow = MIN(xrow, xtop + xrows - 1); + return 0; +} + +static int vc_status(void) +{ + int col = vi_off2col(xb, xrow, xoff); + int c = vi_insert ? 'I' : 'N'; + snprintf(vi_msg, sizeof(vi_msg), + "%c%04d %c %s %s %d C%d", + w_tmp ? '_' : c, xrow + 1, + lbuf_modified(xb) ? 'M' : '-', + ex_path()[0] ? ex_path() : "unnamed", + kmap_map(xkmap, 0), + lbuf_len(xb), ren_cursor(lbuf_get(xb, xrow), col) + 1); + return 0; +} + +static int vc_charinfo(void) +{ + char *c = uc_chr(lbuf_get(xb, xrow), xoff); + if (c) { + char cbuf[8] = ""; + memcpy(cbuf, c, uc_len(c)); + snprintf(vi_msg, sizeof(vi_msg), "<%s> %04x", cbuf, uc_code(c)); + } + return 0; +} + +static int vc_replace(void) +{ + int cnt = MAX(1, vi_arg1); + char *cs = vi_char(vi_read, xkmap); + char *ln = lbuf_get(xb, xrow); + struct sbuf sb = {0}; + char *pos, *end; + int off, i; + if (!ln || !cs) + return VC_BAD; + off = ren_noeol(ln, xoff); + pos = uc_chr(ln, off); + end = uc_chr(pos, cnt); + if (!end || !end[0]) + return VC_BAD; + sbuf_mem(&sb, ln, pos - ln); + for (i = 0; i < cnt; i++) + sbuf_str(&sb, cs); + sbuf_str(&sb, end); + lbuf_edit(xb, sbuf_buf(&sb), xrow, xrow + 1); + if (cs[0] == '\n') { + xrow += cnt; + xoff = 0; + vi_drawfix(xrow - cnt, 1, cnt + 1); + } else { + xoff = off + cnt - 1; + vi_drawfix(xrow, 1, 1); + } + sbuf_free(&sb); + return VC_OK; +} + +static void vi_marksave(void) +{ + lbuf_mark(xb, '\'', xrow, xoff); + lbuf_mark(xb, '`', xrow, xoff); +} + +static int vc_definition(char *ln, int off, int newwin) +{ + char cw[256], kw[256]; + char *s; + int r = 0, o = 0; + int len = 0; + if (uc_word(ln, cw, sizeof(cw), ren_noeol(ln, off), "") != 0) + return 0; + snprintf(kw, sizeof(kw), conf_definition(ex_filetype()), cw); + if (lbuf_search(xb, kw, +1, &r, &o, &len) != 0) { + snprintf(vi_msg, sizeof(vi_msg), "not found <%s>", kw); + return 0; + } + ln = lbuf_get(xb, r); + if ((s = strstr(ln, cw)) != NULL) + o = s - ln; + vi_marksave(); + if (newwin) + vi_wmirror(); + xrow = r; + xoff = o; + return newwin ? VC_ALL : VC_COL; +} + +static int vc_openpath(char *ln, int off, int num, int newwin) +{ + char path[250], ex[256]; + char *sep; + if (uc_word(ln, path, sizeof(path), ren_noeol(ln, off), "-/.:") != 0) + return 0; + if ((sep = strchr(path, ':')) != NULL) + *sep = '\0'; + if (access(path, R_OK) != 0) { + snprintf(vi_msg, sizeof(vi_msg), "cannot open <%s>", path); + return 0; + } + if (newwin) + vi_wmirror(); + snprintf(ex, sizeof(ex), "e %s", path); + if (ex_command(ex)) + return newwin ? VC_ALL : VC_WIN; + if (num && sep && isdigit((unsigned char) sep[1])) { + char *col = strchr(sep + 1, ':'); + int lnum = atoi(sep + 1); + vi_marksave(); + xrow = MIN(MAX(0, lnum - 1), lbuf_len(xb) - 1); + if (col && isdigit((unsigned char) col[1])) + xoff = ren_noeol(lbuf_get(xb, xrow), atoi(col + 1) - 1); + } + return newwin ? VC_ALL : VC_WIN; +} + +static int vc_tag(char *ln, int off, int newwin, int lsp) +{ + char cw[120], ex[128]; + if (lsp && lsp_on()) { + if (newwin) + vi_wmirror(); + ex_command("lspg"); + return newwin ? VC_ALL : VC_WIN; + } + if (uc_word(ln, cw, sizeof(cw), ren_noeol(ln, off), "")) + return 0; + snprintf(ex, sizeof(ex), "ta %s", cw); + vi_marksave(); + if (ex_command(ex) != 0) + return 0; + if (newwin) { + ex_command("po"); + vi_wmirror(); + ex_command(ex); + } + return newwin ? VC_ALL : VC_WIN; +} + +static char rep_cmd[4096]; /* the last command */ +static int rep_len; + +static void vi_repeatset(int save) +{ + int n; + char *cmd = term_cmd(&n); + if (save && n + 1 < sizeof(rep_cmd)) { + memcpy(rep_cmd, cmd, n); + rep_len = n; + rep_cmd[n] = '\0'; + reg_put('.', rep_cmd, 0); + } +} + +static void vc_repeat(void) +{ + int i; + for (i = 0; i < MAX(1, vi_arg1); i++) + term_push(rep_cmd, rep_len); +} + +static void vc_repeatstop(void) +{ + term_pushstop(); +} + +static void vc_execute(void) +{ + static int reg = -1; + int lnmode; + int c = (c = vi_read()) == '\\' ? 0x80 | vi_read() : c; + char *buf = NULL; + int i; + if (TK_INT(c)) + return; + if (c == '@') + c = reg; + reg = c; + if (reg >= 0) + buf = reg_get(reg, &lnmode); + if (buf != NULL) { + for (i = 0; i < MAX(1, vi_arg1); i++) + term_push(buf, strlen(buf)); + } +} + +static int vc_ecmd(int c, int newwin) +{ + char cmd[256]; + char *out; + snprintf(cmd, sizeof(cmd), "%s %c %s %d %d", + conf_ecmd(), c, ex_path(), xrow + 1, xoff + 1); + if ((out = cmd_pipe(cmd, NULL, 1)) == NULL) { + snprintf(vi_msg, sizeof(vi_msg), "command failed"); + return 0; + } + if (!strchr(out, '\n')) { + snprintf(vi_msg, sizeof(vi_msg), "no output"); + free(out); + return 0; + } + if (newwin) + vi_wmirror(); + ex_command(out); + free(out); + return VC_ALL; +} + +/* format a quick leap item; modifies ln and returns a static buffer */ +static char *vi_leapfmt(int id, char *ln) +{ + static char out[128]; + char *path; + int mid = 0, des, sep = 48; + while (ln[mid] && !isspace((unsigned char) ln[mid])) + mid++; + des = ln[mid] ? mid + 1 : mid; + ln[mid] = '\0'; + while (ln[des] && isspace((unsigned char) ln[des])) + des++; + if (!ln[des]) + sep = MIN(mid, 80); + path = mid <= sep ? ln : ln + mid - sep; + if (mid > sep) + path[0] = '-'; + snprintf(out, sizeof(out), "[%d] %-*s %s", id + 1, sep, path, ln + des); + return out; +} + +/* list quick leap items */ +static void vi_leaplist(char *list[], int cnt, int matches, int total, char *mod, char *pos) +{ + char cmd[256]; + int i; + for (i = 0; i < cnt; i++) { + strcpy(cmd, "[-]"); + if (list[i]) { + char ln[256]; + snprintf(ln, sizeof(ln), "%s", list[i]); + snprintf(cmd, sizeof(cmd), "%s", vi_leapfmt(i, ln)); + } + vi_drawquick(cmd, xrows - cnt + i); + } + snprintf(cmd, sizeof(cmd), "LEAP %s (%d/%d) %s", mod, matches, total, pos); + vi_drawquick(cmd, cnt ? xrows - cnt - 1 : xrows); + term_pos(-1, 5); +} + +/* ret>=0: selection index, ret=-1 interrupted */ +static int vi_leap(struct tlist *tls, char *mod, char *pos, int minrows) +{ + char msg[256]; + char kws[256]; + int view[9]; + char *view_s[LEN(view)]; + int i; + kws[0] = '\0'; + minrows = MIN(LEN(view), minrows); + while (1) { + int view_n = tlist_top(tls, view, LEN(view)); + char *kw; + minrows = MAX(minrows, view_n); + for (i = 0; i < LEN(view); i++) + view_s[i] = i < view_n ? tlist_get(tls, view[i]) : NULL; + vi_leaplist(view_s, minrows, tlist_matches(tls), tlist_cnt(tls), mod, pos); + snprintf(msg, sizeof(msg), "Filter (%s): ", kws); + if (!(kw = vi_prompt(msg, &xkmap, NULL))) + return -1; + if (!kw[0]) { + free(kw); + return view_n ? view[0] : -1; + } else if (kw[0] == '\\' && !kw[2] && kw[1] >= '1' && kw[1] <= '9') { + int idx = kw[1] - '1'; + free(kw); + return idx < view_n ? view[idx] : -1; + } + snprintf(strchr(kws, '\0'), sizeof(kws) - strlen(kws), + "%s%s", kws[0] ? "|" : "", kw); + tlist_filt(tls, kw); + free(kw); + } + return -1; +} + +static int vc_quick(int newwin) +{ + char cmd[256]; + struct tlist *tls; + char *ls[32]; + int sel = -1; + int mod = 0, c; + char *pos = ex_path()[0] ? ex_path() : "unnamed"; + int ls_n = ex_list(ls, LEN(ls)); + int minrows = MIN(9, ls_n - 1); + tls = tlist_make(ls + 1, ls_n - 1); + vi_leaplist(ls + 1, minrows, ls_n - 1, ls_n - 1, "BUFF", pos); + term_commit(); + c = vi_read(); + if (c == ',' || c == ';' || c == '=' || c == '*') { + char *name = c == ',' ? "FILE" : "BUFF"; + if (c == '=') + name = "TAGS"; + if (c == '*') + name = "QFIX"; + mod = c; + tlist_free(tls); + if (mod == ';') + tls = tlist_make(ls + 1, ls_n - 1); + if (mod == ',') + tls = tlist_from("ls"); + if (mod == '=') + tls = tlist_tags("tags"); + if (mod == '*') + tls = tlist_str(reg_get('*', NULL)); + if (tls) + sel = vi_leap(tls, name, pos, minrows); + } else if (c >= '1' && c <= '9') { + sel = c - '1'; + } + led_reset(&vi_ledmod); + cmd[0] = '\0'; + if (sel >= 0 && sel < tlist_cnt(tls)) + snprintf(cmd, sizeof(cmd), "%s", tlist_get(tls, sel)); + if (tls) + tlist_free(tls); + if (cmd[0] && mod == '=') + return vc_tag(cmd, 0, newwin, 0) | VC_WIN; + if (cmd[0]) + return vc_openpath(cmd, 0, 1, newwin) | VC_WIN; + if (isalpha(c) && reg_get(0x80 | c, NULL) != NULL) { + char ra[8] = {'r', 'a', '\\', c}; + if (newwin) + vi_wmirror(); + ex_command(ra); + return VC_ALL; + } + if (isalpha(c)) + return vc_ecmd(c, newwin) != 0 ? VC_ALL : VC_WIN; + return mod || ls_n > 1 ? VC_WIN : 0; +} + +static int vc_jumpglob(int mark, int lnmode) +{ + char cmd[16]; + int mod = 0; + int mark_row, mark_off; + if (mark <= 0 || mark >= LEN(glob_id) || glob_id[mark] <= 0) + return 0; + vi_marksave(); + if (glob_id[mark] != ex_id()) { + snprintf(cmd, sizeof(cmd), "b %d", glob_id[mark]); + if (ex_command(cmd)) + return 0; + mod = VC_WIN; + } + if (!lbuf_jump(xb, mark, &mark_row, &mark_off)) { + xrow = mark_row; + xoff = lnmode ? 0 : mark_off; + } + return VC_COL | mod; +} + +static void sigwinch(int signo) +{ + vi_back(TK_CTL('l')); + vi_back(TK_CTL('c')); +} + +/* the terminal went away: leave the editing loop, so cleanup runs */ +static void sighup(int signo) +{ + xquit = 1; +} + +static void vi(void) +{ + int xcol; + int mark; + char *ln; + int kmap = 0; + signal(SIGWINCH, sigwinch); + vi_switch(0); + xtop = MAX(0, xrow - xrows / 2); + xoff = 0; + xcol = vi_off2col(xb, xrow, xoff); + vi_drawagain(xcol, -1); + term_pos(xrow - xtop, vi_pos(lbuf_get(xb, xrow), xcol)); + term_commit(); + vi_pending = 0; + while (!xquit) { + int mod = 0; + int nrow = xrow; + int noff = ren_noeol(lbuf_get(xb, xrow), xoff); + int otop = xtop; + int oleft = xleft; + int orow = xrow; + char *opath = ex_path(); /* do not dereference; to detect buffer changes */ + int mv = 0, n, ru; + if (!vi_insert) { + term_cmd(&n); + vi_arg2 = 0; + vi_ybuf = vi_yankbuf(); + vi_arg1 = vi_prefix(); + if (!vi_ybuf) + vi_ybuf = vi_yankbuf(); + mv = vi_motion(&nrow, &noff); + } + if (vi_insert) { + mod = vc_insertcmd(); + if (!vi_insert) + vi_repeatset(1); + if (!vi_insert) + glob_id['*'] = ex_id(); + } else if (mv > 0) { + if (strchr("\'`GHML/?{}[]nN", mv) || (mv == '%' && noff < 0)) + vi_marksave(); + xrow = nrow; + if (noff < 0 && !strchr("jk", mv)) + noff = lbuf_indents(xb, xrow); + if (strchr("jk", mv)) + noff = vi_col2off(xb, xrow, xcol); + xoff = ren_noeol(lbuf_get(xb, xrow), noff); + if (!strchr("|jk", mv)) + xcol = vi_off2col(xb, xrow, xoff); + if (mv == '|') + xcol = vi_pcol; + } else if (mv < 0) { + mod = VC_BAD; + } else { + int c = vi_read(); + int k = 0; + if (c <= 0) + continue; + lbuf_mark(xb, '^', xrow, xoff); + switch (c) { + case TK_CTL('b'): + if (vi_scrollbackward(MAX(1, vi_arg1) * (xrows - 1))) + break; + xoff = lbuf_indents(xb, xrow); + mod = VC_COL; + break; + case TK_CTL('f'): + if (vi_scrollforward(MAX(1, vi_arg1) * (xrows - 1))) + break; + xoff = lbuf_indents(xb, xrow); + mod = VC_COL; + break; + case TK_CTL('e'): + if (vi_scrollforward(MAX(1, vi_arg1))) + break; + xoff = vi_col2off(xb, xrow, xcol); + break; + case TK_CTL('y'): + if (vi_scrollbackward(MAX(1, vi_arg1))) + break; + xoff = vi_col2off(xb, xrow, xcol); + break; + case TK_CTL('u'): + if (xrow == 0) + break; + if (vi_arg1) + vi_scroll = vi_arg1; + n = vi_scroll ? vi_scroll : xrows / 2; + xrow = MAX(0, xrow - n); + if (xtop > 0) + xtop = MAX(0, xtop - n); + xoff = lbuf_indents(xb, xrow); + mod = VC_COL; + break; + case TK_CTL('d'): + if (xrow == lbuf_len(xb) - 1) + break; + if (vi_arg1) + vi_scroll = vi_arg1; + n = vi_scroll ? vi_scroll : xrows / 2; + xrow = MIN(MAX(0, lbuf_len(xb) - 1), xrow + n); + if (xtop < lbuf_len(xb) - xrows) + xtop = MIN(lbuf_len(xb) - xrows, xtop + n); + xoff = lbuf_indents(xb, xrow); + mod = VC_COL; + break; + case TK_CTL('z'): + term_pos(xrows, 0); + term_suspend(); + mod = VC_ALL; + break; + case 'u': + if (!lbuf_undo(xb)) { + lbuf_jump(xb, '^', &xrow, &xoff); + mod = VC_WIN; + } else { + snprintf(vi_msg, sizeof(vi_msg), "undo failed"); + } + break; + case TK_CTL('r'): + if (!lbuf_redo(xb)) { + lbuf_jump(xb, '^', &xrow, &xoff); + mod = VC_WIN; + } else { + snprintf(vi_msg, sizeof(vi_msg), "redo failed"); + } + break; + case TK_CTL('g'): + vc_status(); + break; + case TK_CTL('^'): + ex_command("e #"); + mod = VC_WIN; + break; + case TK_CTL(']'): + mod = vc_tag(lbuf_get(xb, xrow), xoff, 0, 1); + break; + case TK_CTL('t'): + if (!ex_command("pop")) { + vi_marksave(); + mod = VC_WIN; + } + break; + case TK_CTL('w'): + k = vi_read(); + if (k == 's') + if (!vi_wsplit()) + mod = VC_ALL; + if (k == 'j' || k == 'k') { + if (w_cnt > 1) { + vi_switch(1 - w_cur); + mod = VC_ALL; + } + } + if (k == 'o') + if (!vi_wonly()) + mod = VC_WIN; + if (k == 'c') + if (!vi_wclose()) + mod = VC_WIN; + if (k == 'x') + if (!vi_wswap()) + mod = VC_ALL; + if (k == TK_CTL(']') || k == ']') + mod = vc_tag(lbuf_get(xb, xrow), xoff, 1, 1); + if (k == 'g') { + char *ln = lbuf_get(xb, xrow); + int j = vi_read(); + if (j == 'f' || j == 'l') + mod = vc_openpath(ln, xoff, j == 'l', 1); + if (j == 'd') + mod = vc_definition(ln, xoff, 1); + } + if (k == 'q') + mod = vc_quick(1); + break; + case ':': + ln = vi_prompt(":", &kmap, reg_getln(':')); + if (ln && ln[0]) { + reg_putln(':', ln); + if (ln[0] != ':') { + char *ln2 = uc_cat(":", ln); + free(ln); + ln = ln2; + } + if (!ex_command(ln) && strcmp(ln, ":w")) + mod = VC_ALL; + reg_put(':', ln, 1); + } + free(ln); + if (xquit) + continue; + break; + case 'c': + case 'd': + case 'y': + case '!': + case '>': + case '<': + mod = vc_motion(c); + break; + case 'i': + case 'I': + case 'a': + case 'A': + case 'o': + case 'O': + mod = vc_insert(c); + break; + case 'J': + mod = vc_join(); + break; + case TK_CTL('l'): + term_done(); + term_init(); + mod = VC_ALL; + break; + case 'm': + if ((mark = vi_read()) > 0 && isalpha(mark)) { + if (isupper(mark)) + glob_id[tolower(mark)] = ex_id(); + lbuf_mark(xb, tolower(mark), xrow, xoff); + } + break; + case 'p': + case 'P': + mod = vc_put(c); + break; + case 'z': + k = vi_read(); + switch (k) { + case '\n': + xtop = vi_arg1 ? vi_arg1 : xrow; + break; + case '.': + n = vi_arg1 ? vi_arg1 : xrow; + xtop = MAX(0, n - xrows / 2); + break; + case '-': + n = vi_arg1 ? vi_arg1 : xrow; + xtop = MAX(0, n - xrows + 1); + break; + case '>': + case '<': + xtd = 0; + if (vi_arg1 <= 2) + xtd = k == '>' ? MAX(1, vi_arg1) : -MAX(1, vi_arg1); + mod = VC_WIN; + break; + case 'e': + case 'f': + xkmap = k == 'e' ? 0 : xkmap_alt; + break; + case 'j': + case 'k': + if (!ex_command(k == 'j' ? "b +" : "b -")) + mod = VC_WIN; + break; + case 'J': + case 'K': + if (!ex_command(k == 'J' ? "next" : "prev")) + mod = VC_WIN; + break; + case 'D': + if (!ex_command("b !")) + mod = VC_WIN; + break; + } + break; + case 'g': + ln = lbuf_get(xb, xrow); + k = vi_read(); + if (k == '~' || k == 'u' || k == 'U') + mod = vc_motion(k); + if (k == 'a') + mod = vc_charinfo(); + if (k == 'd') + mod = vc_definition(ln, xoff, 0); + if (k == 'f' || k == 'l') + mod = vc_openpath(ln, xoff, k == 'l', 0); + if (k == '\'' || k == '`') + mod = vc_jumpglob(vi_read(), k == '\''); + break; + case 'x': + vi_back(' '); + mod = vc_motion('d'); + break; + case 'X': + vi_back(TK_CTL('h')); + mod = vc_motion('d'); + break; + case 'C': + vi_back('$'); + mod = vc_motion('c'); + break; + case 'D': + vi_back('$'); + mod = vc_motion('d'); + break; + case 'q': + mod = vc_quick(0); + break; + case 'r': + mod = vc_replace(); + break; + case 's': + vi_back(' '); + mod = vc_motion('c'); + break; + case 'S': + vi_back('c'); + mod = vc_motion('c'); + break; + case 'Y': + vi_back('y'); + mod = vc_motion('y'); + break; + case 'Z': + k = vi_read(); + if (k == 'Z') + if (!ex_command("x")) + mod = VC_WIN; + break; + case '~': + vi_back(' '); + mod = vc_motion('~'); + break; + case '.': + vc_repeat(); + break; + case '@': + vc_execute(); + break; + case TK_ESC: + vi_readiseq(); + continue; + default: + continue; + } + if (!vi_insert) { + int changecmd = strchr("!<>ACDIJOPRSXYacdioprsxy~", c) || + (c == 'g' && strchr("uU~", k)); + vi_repeatset(changecmd && !(mod & VC_BAD)); + if (changecmd) + glob_id['*'] = ex_id(); + } + } + if (mod & VC_BAD) + vc_repeatstop(); + if (mod & VC_OK) + otop = xtop; + vi_wfix(); + if (mod & ~VC_BAD) + xcol = vi_off2col(xb, xrow, xoff); + if (xcol >= xleft + xcols) + xleft = xcol - xcols / 2; + if (xcol < xleft) + xleft = xcol < xcols ? 0 : xcol - xcols / 2; + if (vi_wait()) + vi_pending = 0; + ru = (xru & 1) || ((xru & 2) && w_cnt > 1) || ((xru & 4) && opath != ex_path()); + if (mod & VC_ALT && w_cnt == 1) + vi_switch(w_cur); + if (mod & VC_ALT && w_cnt > 1) { + int pending = vi_pending; + int id = w_cur; + w_tmp = 1; + vi_switch(1 - id); + vi_wfix(); + vi_pending = 0; + led_reset(&vi_ledmod); + if (ru) + vc_status(); + led_reset(&vi_ledmod); + vi_drawagain(vi_off2col(xb, xrow, xoff), -1); + vi_pending = pending; + w_tmp = 0; + vi_switch(id); + } + if (mod & VC_WIN) + led_reset(&vi_ledmod); + if (ru && !vi_msg[0] && !vi_pending) + vc_status(); + if (mod & (VC_ROW | VC_WIN) || xleft != oleft) { + int lineonly = mod & VC_ROW && xleft == oleft && xtop == otop; + vi_drawagain(xcol, lineonly ? xrow : -1); + if (lineonly && xrow != orow) + vi_drawagain(xcol, orow); + } else { + if (xtop != otop) + vi_drawupdate(otop); + if (xhll && xrow != orow && orow >= xtop && orow < xtop + xrows) + vi_drawrow(orow); + if (xhll && xrow != orow) + vi_drawrow(xrow); + if (vi_msg[0]) + vi_drawmsg(); + } + vi_pending = 0; + ln = lbuf_get(xb, xrow); + if (vi_insert) + term_pos(xrow - xtop, vi_pos(ln, ren_insert(ln, xoff))); + else + term_pos(xrow - xtop, vi_pos(ln, ren_cursor(ln, xcol))); + term_commit(); + if (!vi_insert) + lbuf_tx(xb); + } + led_reset(&vi_ledmod); + led_reset(&vi_ledins); +} + +int main(int argc, char *argv[]) +{ + int i; + char *prog = strchr(argv[0], '/') ? strrchr(argv[0], '/') + 1 : argv[0]; + xvis = strcmp("ex", prog) && strcmp("neatex", prog); + for (i = 1; i < argc && argv[i][0] == '-'; i++) { + if (argv[i][1] && !argv[i][2]) { + switch (argv[i][1]) { + case 's': + continue; + case 'e': + xvis = 0; + continue; + case 'v': + xvis = 1; + continue; + case 'h': + printf("usage: %s [options] [file...]\n\n", argv[0]); + printf("options:\n"); + printf(" -v start in vi mode\n"); + printf(" -e start in ex mode\n"); + return 0; + } + } + fprintf(stderr, "%s: unknown option: %s\n", argv[0], argv[i]); + return 1; + } + dir_init(); + syn_init(); + tag_init(); + if (xvis) + term_init(); + signal(SIGPIPE, SIG_IGN); + signal(SIGHUP, sighup); + signal(SIGTERM, sighup); + if (!ex_init(argv + i)) { + if (xvis) + vi(); + else + ex(); + ex_done(); + } + if (xvis) + term_done(); + free(w_path); + reg_done(); + syn_done(); + dir_done(); + tag_done(); + return 0; +} diff --git a/Apps/Neatvi/main/Source/vi.h b/Apps/Neatvi/main/Source/vi.h new file mode 100644 index 0000000..aa4757c --- /dev/null +++ b/Apps/Neatvi/main/Source/vi.h @@ -0,0 +1,269 @@ +/* neatvi main header */ +#include + +/* helper macros */ +#define LEN(a) (sizeof(a) / sizeof((a)[0])) +#define MIN(a, b) ((a) < (b) ? (a) : (b)) +#define MAX(a, b) ((a) < (b) ? (b) : (a)) + +/* line buffer, managing a number of lines */ +struct lbuf *lbuf_make(void); +void lbuf_free(struct lbuf *lbuf); +int lbuf_rd(struct lbuf *lbuf, int fd, int beg, int end); +int lbuf_wr(struct lbuf *lbuf, int fd, int beg, int end); +void lbuf_edit(struct lbuf *lbuf, char *s, int beg, int end); +void lbuf_tx(struct lbuf *lbuf); +char *lbuf_cp(struct lbuf *lbuf, int beg, int end); +char *lbuf_get(struct lbuf *lbuf, int pos); +int lbuf_len(struct lbuf *lbuf); +void lbuf_mark(struct lbuf *lbuf, int mark, int pos, int off); +int lbuf_jump(struct lbuf *lbuf, int mark, int *pos, int *off); +int lbuf_undo(struct lbuf *lbuf); +int lbuf_redo(struct lbuf *lbuf); +int lbuf_modified(struct lbuf *lb); +void lbuf_saved(struct lbuf *lb, int clear); +int lbuf_indents(struct lbuf *lb, int r); +int lbuf_eol(struct lbuf *lb, int r); +void lbuf_globset(struct lbuf *lb, int pos, int dep); +int lbuf_globget(struct lbuf *lb, int pos, int dep); +/* motions */ +int lbuf_findchar(struct lbuf *lb, char *cs, int cmd, int n, int *r, int *o); +int lbuf_search(struct lbuf *lb, char *kw, int dir, int *r, int *o, int *len); +int lbuf_paragraphbeg(struct lbuf *lb, int dir, int *row, int *off); +int lbuf_sectionbeg(struct lbuf *lb, int dir, char *sec, int *row, int *off); +int lbuf_wordbeg(struct lbuf *lb, int big, int dir, int *row, int *off); +int lbuf_wordend(struct lbuf *lb, int big, int dir, int *row, int *off); +int lbuf_pair(struct lbuf *lb, int *row, int *off); + +/* string buffer, variable-sized string */ +struct sbuf { + char *s; /* allocated buffer */ + long s_sz; /* size of memory allocated for s[] */ + long s_n; /* length of the string stored in s[] */ + int owns; /* s is allocated and owned by sbuf */ +}; +void sbuf_free(struct sbuf *sb); +char *sbuf_done(struct sbuf *sb); +char *sbuf_buf(struct sbuf *sb); +int sbuf_chr(struct sbuf *sb, int c); +int sbuf_str(struct sbuf *sb, char *s); +int sbuf_mem(struct sbuf *sb, void *s, long len); +int sbuf_printf(struct sbuf *sbuf, char *s, ...); +long sbuf_len(struct sbuf *sb); +void sbuf_cut(struct sbuf *s, long len); + +/* regular expressions */ +#define RE_ICASE 1 +#define RE_NOTBOL 2 +#define RE_NOTEOL 4 +/* regular expression sets: searching for multiple regular expressions */ +struct rset *rset_make(int n, char **pat, int flg); +int rset_find(struct rset *re, char *s, int n, int *grps, int flg); +void rset_free(struct rset *re); +char *re_read(char **src); +/* searching for a single pattern regular expression */ +struct rstr *rstr_make(char *re, int flg); +int rstr_find(struct rstr *rs, char *s, int n, int *grps, int flg); +void rstr_free(struct rstr *rs); + +/* rendering lines */ +int *ren_position(char *s, int n); +int ren_next(char *s, int p, int dir); +int ren_eol(char *s, int dir); +int ren_pos(char *s, int off); +int ren_cursor(char *s, int pos); +int ren_insert(char *s, int pos); +int ren_noeol(char *s, int p); +int ren_off(char *s, int pos); +int ren_wid(char *s); +int ren_region(char *s, int c1, int c2, int *l1, int *l2, int closed); +char *ren_translate(char *s, char *ln); +int ren_cwid(char *s, int pos); + +/* text direction */ +int dir_context(char *s); +void dir_reorder(char *s, int *ord); +void dir_init(void); +void dir_done(void); + +/* string registers */ +char *reg_get(int c, int *lnmode); +void reg_put(int c, char *s, int lnmode); +void reg_done(void); + +/* utf-8 helper functions */ +int uc_len(char *s); +int uc_len_expect(char c); +int uc_wid(char *s); +int uc_slen(char *s); +int uc_code(char *s); +char *uc_chr(char *s, int off); +int uc_off(char *s, int off); +char *uc_sub(char *s, int beg, int end); +char *uc_dup(char *s); +char *uc_cat(char *s, char *r); +int uc_isspace(char *s); +int uc_isprint(char *s); +int uc_isdigit(char *s); +int uc_isalpha(char *s); +int uc_kind(char *c); +int uc_isbell(char *c); +int uc_iscomb(char *c); +char **uc_chop(char *s, int *n); +char *uc_next(char *s); +char *uc_prev(char *beg, char *s); +char *uc_beg(char *beg, char *s); +char *uc_shape(char *beg, char *s); +char *uc_lastline(char *s); +int uc_word(char *ln, char *dst, int len, int off, char *ext); + +/* managing the terminal */ +#define xrows (term_rows()) +#define xcols (term_cols()) + +void term_init(void); +void term_done(void); +void term_suspend(void); +void term_str(char *s); +void term_chr(int ch); +void term_pos(int r, int c); +void term_clear(void); +void term_kill(void); +void term_room(int n); +void term_window(int row, int cnt); +int term_rows(void); +int term_cols(void); +int term_rowx(void); +int term_read(int buffered); +void term_commit(void); +char *term_seqattr(int att, int old); +char *term_seqkill(void); +void term_push(char *s, int n); +void term_pushstop(void); +char *term_cmd(int *n); + +#define TK_CTL(x) ((x) & 037) +#define TK_INT(c) ((c) < 0 || (c) == TK_ESC || (c) == TK_CTL('c')) +#define TK_ESC (TK_CTL('[')) + +/* line-oriented input and output */ +char *led_prompt(char *pref, char *post, int *kmap, char *syn, char *hist); +void led_print(char *s0, int row, int cbeg, int cols, char *syn, char **old); +void led_reset(char **old); + +/* ex commands */ +void ex(void); +int ex_command(char *cmd); +char *ex_read(char *msg); +void ex_print(char *line); +void ex_show(char *msg, ...); +int ex_init(char **files); +void ex_done(void); +char *ex_path(void); +char *ex_filetype(void); +struct lbuf *ex_lbuf(void); +int ex_kwd(char **kwd, int *dir); +void ex_kwdset(char *kwd, int dir); +int ex_list(char **ls, int size); +int ex_id(void); + +#define EXLEN 512 /* ex line length */ +#define xb ex_lbuf() + +/* process management */ +char *cmd_pipe(char *cmd, char *ibuf, int oproc); +char *cmd_unix(char *path, char *ibuf); +int cmd_exec(char *cmd); + +/* syntax highlighting */ +#define SYN_BD 0x010000 +#define SYN_IT 0x020000 +#define SYN_RV 0x040000 +#define SYN_HP 0x400000 +#define SYN_LP 0x800000 +#define SYN_FGMK(f) (0x100000 | (f)) +#define SYN_BGMK(b) (0x200000 | ((b) << 8)) + +#define SYN_FLG 0x7f0000 +#define SYN_FGSET(a) ((a) & 0x1000ff) +#define SYN_BGSET(a) ((a) & 0x20ff00) +#define SYN_FG(a) ((a) & 0xff) +#define SYN_BG(a) (((a) >> 8) & 0xff) +#define SYN_RANK(c) (((c) & SYN_HP) - ((c) & SYN_LP)) + +int *syn_highlight(char *ft, char *s); +char *syn_filetype(char *path); +void syn_context(int fg, int bg); +int syn_merge(int old, int new); +void syn_init(void); +void syn_done(void); + +/* configuration variables */ +int conf_dirmark(int idx, char **pat, int *ctx, int *dir, int *grp); +int conf_dircontext(int idx, char **pat, int *ctx); +int conf_highlight(int idx, char **ft, int **att, char **pat, int *end); +int conf_filetype(int idx, char **ft, char **pat); +int conf_mode(void); +char *conf_digraph(int c1, int c2); +char *conf_definition(char *ft); +char *conf_section(char *ft); +char *conf_ecmd(void); +int conf_hl(int id); +int conf_hlnum(char *hl); +void conf_hlset(int id, int hl); +char *kmap_map(int id, int key); +void kmap_def(int id, int key, char *def); +int kmap_find(char *name); +char *mapch_get(char *s, int *wid); +void mapch_def(char *s, char *d, int wid); + +/* global variables */ +extern int xrow; +extern int xoff; +extern int xtop; +extern int xleft; +extern int xvis; +extern volatile sig_atomic_t xquit; +extern int xic; +extern int xai; +extern int xtd; +extern int xshape; +extern int xorder; +extern int xhl; +extern int xhll; +extern int xkmap; +extern int xkmap_alt; +extern int xlim; +extern int xru; +extern int xhist; +extern int xvte; +extern int xts; + +/* tag file handling */ +int tag_init(void); +int tag_find(char *name, int *pos, int dir, char *path, int pathlen, char *cmd, int cmdlen); +void tag_done(void); +/* tag lists */ +struct tlist *tlist_make(char *ls[], int ls_n); +struct tlist *tlist_from(char *path); +struct tlist *tlist_tags(char *path); +struct tlist *tlist_str(char *str); +void tlist_free(struct tlist *tls); +void tlist_filt(struct tlist *tls, char *kw); +char *tlist_get(struct tlist *tls, int idx); +int tlist_cnt(struct tlist *tls); +int tlist_matches(struct tlist *tls); +int tlist_top(struct tlist *tls, int *view, int view_sz); +/* quick fix list */ +int qfix_current(char *dst, int dstlen, int *row, int *off, char *txt, int txtlen); +int qfix_next(void); +int qfix_prev(void); +void qfix_reset(void); +/* LSP client */ +int lsp_init(char *cmd[]); +void lsp_done(void); +int lsp_on(void); +void lsp_modified(char *path, char *ft); +int lsp_definition(char *path, int row, int off, char *ft, char *dst, int dstlen, int *drow, int *doff); +char *lsp_find(char *path, int row, int off, char *ft); +char *lsp_hover(char *path, int row, int off, char *ft); diff --git a/Apps/Neatvi/manifest.properties b/Apps/Neatvi/manifest.properties new file mode 100644 index 0000000..e8feb16 --- /dev/null +++ b/Apps/Neatvi/manifest.properties @@ -0,0 +1,15 @@ +manifest.version=0.3 +target.sdk=0.8.0-dev +target.platforms=esp32,esp32s3,esp32c6,esp32p4,posix-x86_64 +id=tactility.neatvi +version.name=0.2.0 +version.code=2 +requires.ram=2M +name=Vi +description=Neatvi text editor +app.0.id=tactility.neatvi +app.0.name=Neatvi +app.0.binary=vi +app.0.hidden=true +app.0.headless=true +app.0.stack.depth=8192 diff --git a/Apps/Vi/main/Source/main.c b/Apps/Vi/main/Source/main.c deleted file mode 100644 index 1e602a7..0000000 --- a/Apps/Vi/main/Source/main.c +++ /dev/null @@ -1,8 +0,0 @@ -/* - * Licensed under GPLv2, see file LICENSE in this app's directory. - */ -int vi_main(int argc, char** argv); - -int main(int argc, char* argv[]) { - return vi_main(argc, argv); -} diff --git a/release.py b/Scripts/release.py similarity index 87% rename from release.py rename to Scripts/release.py index 257ad50..d5b57d7 100644 --- a/release.py +++ b/Scripts/release.py @@ -94,6 +94,17 @@ def check_and_get_sdk_version(manifest_map): def get_git_commit_hash(): return subprocess.check_output(['git', 'rev-parse', 'HEAD']).decode('ascii').strip() +def get_requires_ram(manifest): + """Parse "requires.ram" (whole megabytes with an "M" suffix, e.g. "2M") into megabytes. Absent means 0.""" + value = manifest.get("requires.ram") + if value is None: + return 0 + value = value.strip() + if len(value) < 2 or not value.endswith("M") or not value[:-1].isdigit() or int(value[:-1]) > 255: + print(f"ERROR: Invalid requires.ram \"{value}\" in {manifest.get('id', '?')}: expected whole megabytes with an M suffix (e.g. 2M), at most 255M") + sys.exit(1) + return int(value[:-1]) + def manifest_config_to_flat_json(manifest): """Convert a flat (V2) manifest dict into a flat JSON-like dict. @@ -105,6 +116,8 @@ def manifest_config_to_flat_json(manifest): description -> appDescription (optional; default "") target.sdk -> targetSdk target.platforms -> targetPlatforms (comma-separated list) + requires.device.id -> requiresDeviceId (comma-separated list, optional; default []) + requires.ram -> requiresRam (megabytes, optional; default 0) Unknown/missing values fall back to sensible defaults per requirements. """ @@ -125,6 +138,10 @@ def manifest_config_to_flat_json(manifest): platforms_raw = manifest.get("target.platforms", "") target_platforms = [p.strip() for p in str(platforms_raw).split(",") if p.strip()] if platforms_raw is not None else [] + requires_device_id_raw = manifest.get("requires.device.id", "") + requires_device_id = [d.strip() for d in str(requires_device_id_raw).split(",") if d.strip()] + requires_ram = get_requires_ram(manifest) + filename = get_versioned_file_name(manifest) return { "appId": app_id, @@ -134,6 +151,8 @@ def manifest_config_to_flat_json(manifest): "appDescription": app_description, "targetSdk": target_sdk, "targetPlatforms": target_platforms, + "requiresDeviceId": requires_device_id, + "requiresRam": requires_ram, "file": filename } diff --git a/Scripts/CDN/upload-app-files.py b/Scripts/upload-app-files.py similarity index 100% rename from Scripts/CDN/upload-app-files.py rename to Scripts/upload-app-files.py