| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #include <errno.h> | ||
| 2 | #include <langinfo.h> | ||
| 3 | #include <locale.h> | ||
| 4 | #include <stdio.h> | ||
| 5 | #include <stdlib.h> | ||
| 6 | #include <sys/stat.h> | ||
| 7 | #include <unistd.h> | ||
| 8 | #include "editor.h" | ||
| 9 | #include "bind.h" | ||
| 10 | #include "bookmark.h" | ||
| 11 | #include "compiler.h" | ||
| 12 | #include "encoding.h" | ||
| 13 | #include "file-option.h" | ||
| 14 | #include "filetype.h" | ||
| 15 | #include "lock.h" | ||
| 16 | #include "signals.h" | ||
| 17 | #include "syntax/syntax.h" | ||
| 18 | #include "terminal/color.h" | ||
| 19 | #include "terminal/input.h" | ||
| 20 | #include "terminal/key.h" | ||
| 21 | #include "terminal/output.h" | ||
| 22 | #include "terminal/paste.h" | ||
| 23 | #include "ui.h" | ||
| 24 | #include "util/exitcode.h" | ||
| 25 | #include "util/intern.h" | ||
| 26 | #include "util/intmap.h" | ||
| 27 | #include "util/log.h" | ||
| 28 | #include "util/xmalloc.h" | ||
| 29 | #include "util/xstdio.h" | ||
| 30 | #include "version.h" | ||
| 31 | |||
| 32 | 8 | static void set_and_check_locale(void) | |
| 33 | { | ||
| 34 | 8 | const char *default_locale = setlocale(LC_CTYPE, ""); | |
| 35 |
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8 | if (likely(default_locale)) { |
| 36 | 8 | const char *codeset = nl_langinfo(CODESET); | |
| 37 | 8 | LOG_INFO("locale: %s (codeset: %s)", default_locale, codeset); | |
| 38 |
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8 | if (likely(lookup_encoding(codeset) == UTF8)) { |
| 39 | return; | ||
| 40 | } | ||
| 41 | } else { | ||
| 42 | ✗ | LOG_ERROR("failed to set default locale"); | |
| 43 | } | ||
| 44 | |||
| 45 | static const char fallbacks[][12] = {"C.UTF-8", "en_US.UTF-8"}; | ||
| 46 | const char *fallback = NULL; | ||
| 47 | ✗ | for (size_t i = 0; i < ARRAYLEN(fallbacks) && !fallback; i++) { | |
| 48 | ✗ | fallback = setlocale(LC_CTYPE, fallbacks[i]); | |
| 49 | } | ||
| 50 | ✗ | if (fallback) { | |
| 51 | ✗ | LOG_NOTICE("using fallback locale for LC_CTYPE: %s", fallback); | |
| 52 | ✗ | return; | |
| 53 | } | ||
| 54 | |||
| 55 | ✗ | LOG_ERROR("no UTF-8 fallback locales found"); | |
| 56 | ✗ | fputs("setlocale() failed\n", stderr); | |
| 57 | ✗ | exit(EC_CONFIG_ERROR); | |
| 58 | } | ||
| 59 | |||
| 60 | // Get permissions mask for new files | ||
| 61 | 8 | static mode_t get_umask(void) | |
| 62 | { | ||
| 63 | 8 | mode_t old = umask(0); // Get by setting a dummy value | |
| 64 | 8 | umask(old); // Restore previous value | |
| 65 | 8 | return old; | |
| 66 | } | ||
| 67 | |||
| 68 | 8 | EditorState *init_editor_state(EditorFlags flags) | |
| 69 | { | ||
| 70 | 8 | EditorState *e = xmalloc(sizeof(*e)); | |
| 71 | 16 | *e = (EditorState) { | |
| 72 | .status = EDITOR_INITIALIZING, | ||
| 73 | .flags = flags, | ||
| 74 | .command_history = { | ||
| 75 | .max_entries = 512, | ||
| 76 | }, | ||
| 77 | .search_history = { | ||
| 78 | .max_entries = 128, | ||
| 79 | }, | ||
| 80 | .terminal = { | ||
| 81 | .obuf = TERM_OUTPUT_INIT, | ||
| 82 | }, | ||
| 83 | .cursor_styles = { | ||
| 84 | [CURSOR_MODE_DEFAULT] = {.type = CURSOR_DEFAULT, .color = COLOR_DEFAULT}, | ||
| 85 | [CURSOR_MODE_INSERT] = {.type = CURSOR_KEEP, .color = COLOR_KEEP}, | ||
| 86 | [CURSOR_MODE_OVERWRITE] = {.type = CURSOR_KEEP, .color = COLOR_KEEP}, | ||
| 87 | [CURSOR_MODE_CMDLINE] = {.type = CURSOR_KEEP, .color = COLOR_KEEP}, | ||
| 88 | }, | ||
| 89 | .options = { | ||
| 90 | .auto_indent = true, | ||
| 91 | .detect_indent = 0, | ||
| 92 | .editorconfig = false, | ||
| 93 | .emulate_tab = false, | ||
| 94 | .expand_tab = false, | ||
| 95 | .file_history = true, | ||
| 96 | .indent_width = 8, | ||
| 97 | .overwrite = false, | ||
| 98 | .save_unmodified = SAVE_FULL, | ||
| 99 | .syntax = true, | ||
| 100 | .tab_width = 8, | ||
| 101 | .text_width = 72, | ||
| 102 | .ws_error = WSE_SPECIAL, | ||
| 103 | |||
| 104 | // Global-only options | ||
| 105 | .case_sensitive_search = CSS_TRUE, | ||
| 106 | .crlf_newlines = false, | ||
| 107 | .display_special = false, | ||
| 108 | .esc_timeout = 100, | ||
| 109 | .filesize_limit = 250, | ||
| 110 | .lock_files = true, | ||
| 111 | .optimize_true_color = true, | ||
| 112 | .scroll_margin = 0, | ||
| 113 | .select_cursor_char = true, | ||
| 114 | .set_window_title = false, | ||
| 115 | .show_line_numbers = false, | ||
| 116 | 8 | .statusline_left = str_intern(" %f%s%m%s%r%s%M"), | |
| 117 | 8 | .statusline_right = str_intern(" %y,%X %u %o %E%s%b%s%n %t %p "), | |
| 118 | .tab_bar = true, | ||
| 119 | .utf8_bom = false, | ||
| 120 | .window_separator = WINSEP_BAR, | ||
| 121 | } | ||
| 122 | }; | ||
| 123 | |||
| 124 | 8 | sanity_check_global_options(&e->err, &e->options); | |
| 125 | |||
| 126 | 8 | const char *home = getenv("HOME"); | |
| 127 | 8 | const char *dte_home = getenv("DTE_HOME"); | |
| 128 |
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8 | home = home ? home : ""; |
| 129 | 8 | e->home_dir = strview_intern(home); | |
| 130 |
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8 | if (dte_home) { |
| 131 | 1 | e->user_config_dir = xstrdup(dte_home); | |
| 132 | } else { | ||
| 133 | 7 | e->user_config_dir = xstrjoin(home, "/.dte"); | |
| 134 | } | ||
| 135 | |||
| 136 | 8 | pid_t pid = getpid(); | |
| 137 | 8 | bool leader = pid == getsid(0); | |
| 138 | 8 | e->session_leader = leader; | |
| 139 |
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16 | LOG_INFO("pid: %jd%s", (intmax_t)pid, leader ? " (session leader)" : ""); |
| 140 | |||
| 141 | 8 | pid_t pgid = getpgrp(); | |
| 142 |
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8 | if (pgid != pid) { |
| 143 | 8 | LOG_INFO("pgid: %jd", (intmax_t)pgid); | |
| 144 | } | ||
| 145 | |||
| 146 | 8 | mode_t mask = get_umask(); | |
| 147 | 8 | e->new_file_mode = 0666 & ~mask; | |
| 148 | 8 | LOG_INFO("umask: %04o", 0777u & (unsigned int)mask); | |
| 149 | |||
| 150 | 8 | set_and_check_locale(); | |
| 151 | 8 | init_file_locks_context(&e->locks_ctx, e->user_config_dir, pid); | |
| 152 | |||
| 153 | // Allow child processes to detect that they're running under dte | ||
| 154 |
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8 | if (unlikely(setenv("DTE_VERSION", VERSION, 1) != 0)) { |
| 155 | − | fatal_error("setenv", errno); | |
| 156 | } | ||
| 157 | |||
| 158 | 8 | RegexpWordBoundaryTokens *wb = &e->regexp_word_tokens; | |
| 159 |
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8 | if (regexp_init_word_boundary_tokens(wb)) { |
| 160 | 8 | LOG_INFO("regex word boundary tokens detected: %s %s", wb->start, wb->end); | |
| 161 | } else { | ||
| 162 | ✗ | LOG_WARNING("no regex word boundary tokens detected"); | |
| 163 | } | ||
| 164 | |||
| 165 | 8 | hashmap_init(&e->aliases, 32, HMAP_NO_FLAGS); | |
| 166 | 8 | hashset_init(&e->required_syntax_files, 0, false); | |
| 167 | 8 | hashset_init(&e->required_syntax_builtins, 0, false); | |
| 168 | |||
| 169 | 8 | HashMap *modes = &e->modes; | |
| 170 | 8 | e->normal_mode = new_mode(modes, xstrdup("normal"), &normal_commands); | |
| 171 | 8 | e->command_mode = new_mode(modes, xstrdup("command"), &cmd_mode_commands); | |
| 172 | 8 | e->search_mode = new_mode(modes, xstrdup("search"), &search_mode_commands); | |
| 173 | 8 | e->mode = e->normal_mode; | |
| 174 | 8 | intmap_init(&e->normal_mode->key_bindings, 150); | |
| 175 | 8 | intmap_init(&e->command_mode->key_bindings, 40); | |
| 176 | 8 | intmap_init(&e->search_mode->key_bindings, 40); | |
| 177 | |||
| 178 | 8 | return e; | |
| 179 | } | ||
| 180 | |||
| 181 | 25 | static void free_mode_handler(ModeHandler *handler) | |
| 182 | { | ||
| 183 | 25 | ptr_array_free_array(&handler->fallthrough_modes); | |
| 184 | 25 | free_bindings(&handler->key_bindings); | |
| 185 | 25 | free(handler); | |
| 186 | 25 | } | |
| 187 | |||
| 188 | 8 | void free_editor_state(EditorState *e) | |
| 189 | { | ||
| 190 | 8 | free(e->clipboard.buf); | |
| 191 | 8 | free_file_options(&e->file_options); | |
| 192 | 8 | free_filetypes(&e->filetypes); | |
| 193 | 8 | free_syntaxes(&e->syntaxes); | |
| 194 | 8 | file_history_free(&e->file_history); | |
| 195 | 8 | history_free(&e->command_history); | |
| 196 | 8 | history_free(&e->search_history); | |
| 197 | 8 | search_free_regexp(&e->search); | |
| 198 | 8 | cmdline_free(&e->cmdline); | |
| 199 | 8 | clear_messages(&e->messages); | |
| 200 | 8 | free_macro(&e->macro); | |
| 201 | 8 | tag_file_free(&e->tagfile); | |
| 202 | 8 | free_buffers(&e->buffers, &e->err, &e->locks_ctx); | |
| 203 | 8 | free_file_locks_context(&e->locks_ctx); | |
| 204 | |||
| 205 | 8 | ptr_array_free_cb(&e->bookmarks, FREE_FUNC(file_location_free)); | |
| 206 | 8 | hashmap_free(&e->compilers, FREE_FUNC(free_compiler)); | |
| 207 | 8 | hashmap_free(&e->modes, FREE_FUNC(free_mode_handler)); | |
| 208 | 8 | hashmap_free(&e->styles.other, free); | |
| 209 | 8 | hashmap_free(&e->aliases, free); | |
| 210 | 8 | hashset_free(&e->required_syntax_files); | |
| 211 | 8 | hashset_free(&e->required_syntax_builtins); | |
| 212 | |||
| 213 | 8 | free_interned_strings(); | |
| 214 | 8 | free_interned_regexps(); | |
| 215 | |||
| 216 | // TODO: intern this (so that it's freed by free_interned_strings()) | ||
| 217 | 8 | free((void*)e->user_config_dir); | |
| 218 | |||
| 219 | 8 | free(e); | |
| 220 | 8 | } | |
| 221 | |||
| 222 | ✗ | static bool buffer_contains_block(const Buffer *buffer, const Block *ref) | |
| 223 | { | ||
| 224 | ✗ | const Block *blk; | |
| 225 | ✗ | block_for_each(blk, &buffer->blocks) { | |
| 226 | ✗ | if (blk == ref) { | |
| 227 | return true; | ||
| 228 | } | ||
| 229 | } | ||
| 230 | return false; | ||
| 231 | } | ||
| 232 | |||
| 233 | ✗ | static void sanity_check(const View *view) | |
| 234 | { | ||
| 235 | ✗ | if (DEBUG < 1) { | |
| 236 | return; | ||
| 237 | } | ||
| 238 | ✗ | const BlockIter *cursor = &view->cursor; | |
| 239 | ✗ | BUG_ON(!buffer_contains_block(view->buffer, cursor->blk)); | |
| 240 | ✗ | BUG_ON(cursor->offset > cursor->blk->size); | |
| 241 | } | ||
| 242 | |||
| 243 | ✗ | void any_key(Terminal *term, unsigned int esc_timeout) | |
| 244 | { | ||
| 245 | ✗ | KeyCode key; | |
| 246 | ✗ | xfputs("Press any key to continue\r\n", stderr); | |
| 247 | ✗ | while ((key = term_read_input(term, esc_timeout)) == KEY_NONE) { | |
| 248 | ✗ | ; | |
| 249 | } | ||
| 250 | ✗ | bool bracketed_paste = key == KEYCODE_BRACKETED_PASTE; | |
| 251 | ✗ | if (bracketed_paste || key == KEYCODE_DETECTED_PASTE) { | |
| 252 | ✗ | term_discard_paste(&term->ibuf, bracketed_paste); | |
| 253 | } | ||
| 254 | ✗ | } | |
| 255 | |||
| 256 | NOINLINE | ||
| 257 | ✗ | void ui_resize(EditorState *e) | |
| 258 | { | ||
| 259 | ✗ | BUG_ON(e->flags & EFLAG_HEADLESS); | |
| 260 | ✗ | resized = 0; | |
| 261 | ✗ | update_screen_size(&e->terminal, e->root_frame); | |
| 262 | |||
| 263 | ✗ | const ScreenState dummyval = {.id = 0}; | |
| 264 | ✗ | e->screen_update |= UPDATE_ALL; | |
| 265 | ✗ | update_screen(e, &dummyval); | |
| 266 | ✗ | } | |
| 267 | |||
| 268 | ✗ | void ui_start(EditorState *e) | |
| 269 | { | ||
| 270 | ✗ | BUG_ON(e->flags & EFLAG_HEADLESS); | |
| 271 | |||
| 272 | // Note: the order of these calls is important - Kitty saves/restores | ||
| 273 | // some terminal state when switching buffers, so switching to the | ||
| 274 | // alternate screen buffer needs to happen before modes are enabled | ||
| 275 | ✗ | term_use_alt_screen_buffer(&e->terminal); | |
| 276 | ✗ | term_enable_private_modes(&e->terminal); | |
| 277 | |||
| 278 | ✗ | ui_resize(e); | |
| 279 | ✗ | } | |
| 280 | |||
| 281 | // Like ui_start(), but to be called only the first time the UI is started. | ||
| 282 | // Terminal queries are buffered before ui_resize() is called, so that only | ||
| 283 | // a single term_output_flush() is needed (i.e. as opposed to calling | ||
| 284 | // ui_start() + term_put_initial_queries() + term_output_flush()). | ||
| 285 | 5 | void ui_first_start(EditorState *e, unsigned int terminal_query_level) | |
| 286 | { | ||
| 287 |
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5 | if (e->flags & EFLAG_HEADLESS) { |
| 288 | return; | ||
| 289 | } | ||
| 290 | |||
| 291 | ✗ | Terminal *term = &e->terminal; | |
| 292 | |||
| 293 | // The order of these calls is important; see ui_start() | ||
| 294 | ✗ | term_use_alt_screen_buffer(term); | |
| 295 | ✗ | term_enable_private_modes(term); | |
| 296 | |||
| 297 | ✗ | term_put_initial_queries(term, terminal_query_level); | |
| 298 | ✗ | ui_resize(e); | |
| 299 | } | ||
| 300 | |||
| 301 | ✗ | void ui_end(EditorState *e) | |
| 302 | { | ||
| 303 | ✗ | BUG_ON(e->flags & EFLAG_HEADLESS); | |
| 304 | ✗ | Terminal *term = &e->terminal; | |
| 305 | ✗ | TermOutputBuffer *obuf = &term->obuf; | |
| 306 | ✗ | term_clear_screen(obuf); | |
| 307 | ✗ | term_move_cursor(obuf, 0, term->height - 1); | |
| 308 | ✗ | term_restore_cursor_style(term); | |
| 309 | ✗ | term_show_cursor(term); | |
| 310 | ✗ | term_restore_private_modes(term); | |
| 311 | ✗ | term_use_normal_screen_buffer(term); | |
| 312 | ✗ | term_end_sync_update(term); | |
| 313 | ✗ | term_output_flush(obuf); | |
| 314 | ✗ | } | |
| 315 | |||
| 316 | ✗ | int main_loop(EditorState *e) | |
| 317 | { | ||
| 318 | ✗ | BUG_ON(e->flags & EFLAG_HEADLESS); | |
| 319 | |||
| 320 | ✗ | while (e->status == EDITOR_RUNNING) { | |
| 321 | ✗ | if (unlikely(resized)) { | |
| 322 | ✗ | LOG_INFO("SIGWINCH received"); | |
| 323 | ✗ | ui_resize(e); | |
| 324 | } | ||
| 325 | |||
| 326 | ✗ | KeyCode key = term_read_input(&e->terminal, e->options.esc_timeout); | |
| 327 | ✗ | if (unlikely(key == KEY_NONE)) { | |
| 328 | ✗ | continue; | |
| 329 | } | ||
| 330 | |||
| 331 | ✗ | const ScreenState s = get_screen_state(e->view); | |
| 332 | ✗ | clear_error(&e->err); | |
| 333 | ✗ | handle_input(e, key); | |
| 334 | ✗ | sanity_check(e->view); | |
| 335 | ✗ | update_screen(e, &s); | |
| 336 | } | ||
| 337 | |||
| 338 | ✗ | BUG_ON(e->status < 0 || e->status > EDITOR_EXIT_MAX); | |
| 339 | ✗ | return e->status; | |
| 340 | } | ||
| 341 |