options.cc revision e2aab4b5db88c368c11cee81368b9ad41399e585
1/* 2 * Copyright © 2011,2012 Google, Inc. 3 * 4 * This is part of HarfBuzz, a text shaping library. 5 * 6 * Permission is hereby granted, without written agreement and without 7 * license or royalty fees, to use, copy, modify, and distribute this 8 * software and its documentation for any purpose, provided that the 9 * above copyright notice and the following two paragraphs appear in 10 * all copies of this software. 11 * 12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR 13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES 14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN 15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH 16 * DAMAGE. 17 * 18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, 19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS 21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO 22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. 23 * 24 * Google Author(s): Behdad Esfahbod 25 */ 26 27#include "options.hh" 28 29#ifdef HAVE_FREETYPE 30#include <hb-ft.h> 31#endif 32 33 34void 35fail (hb_bool_t suggest_help, const char *format, ...) 36{ 37 const char *msg; 38 39 va_list vap; 40 va_start (vap, format); 41 msg = g_strdup_vprintf (format, vap); 42 const char *prgname = g_get_prgname (); 43 g_printerr ("%s: %s\n", prgname, msg); 44 if (suggest_help) 45 g_printerr ("Try `%s --help' for more information.\n", prgname); 46 47 exit (1); 48} 49 50 51hb_bool_t debug = false; 52 53static gchar * 54shapers_to_string (void) 55{ 56 GString *shapers = g_string_new (NULL); 57 const char **shaper_list = hb_shape_list_shapers (); 58 59 for (; *shaper_list; shaper_list++) { 60 g_string_append (shapers, *shaper_list); 61 g_string_append_c (shapers, ','); 62 } 63 g_string_truncate (shapers, MAX (0, (gint)shapers->len - 1)); 64 65 return g_string_free (shapers, false); 66} 67 68static G_GNUC_NORETURN gboolean 69show_version (const char *name G_GNUC_UNUSED, 70 const char *arg G_GNUC_UNUSED, 71 gpointer data G_GNUC_UNUSED, 72 GError **error G_GNUC_UNUSED) 73{ 74 g_printf ("%s (%s) %s\n", g_get_prgname (), PACKAGE_NAME, PACKAGE_VERSION); 75 76 char *shapers = shapers_to_string (); 77 g_printf ("Available shapers: %s\n", shapers); 78 g_free (shapers); 79 if (strcmp (HB_VERSION_STRING, hb_version_string ())) 80 g_printf ("Linked HarfBuzz library has a different version: %s\n", hb_version_string ()); 81 82 exit(0); 83} 84 85 86void 87option_parser_t::add_main_options (void) 88{ 89 GOptionEntry entries[] = 90 { 91 {"version", 0, G_OPTION_FLAG_NO_ARG, 92 G_OPTION_ARG_CALLBACK, (gpointer) &show_version, "Show version numbers", NULL}, 93 {"debug", 0, 0, G_OPTION_ARG_NONE, &debug, "Free all resources before exit", NULL}, 94 {NULL} 95 }; 96 g_option_context_add_main_entries (context, entries, NULL); 97} 98 99static gboolean 100pre_parse (GOptionContext *context G_GNUC_UNUSED, 101 GOptionGroup *group G_GNUC_UNUSED, 102 gpointer data, 103 GError **error) 104{ 105 option_group_t *option_group = (option_group_t *) data; 106 option_group->pre_parse (error); 107 return *error == NULL; 108} 109 110static gboolean 111post_parse (GOptionContext *context G_GNUC_UNUSED, 112 GOptionGroup *group G_GNUC_UNUSED, 113 gpointer data, 114 GError **error) 115{ 116 option_group_t *option_group = static_cast<option_group_t *>(data); 117 option_group->post_parse (error); 118 return *error == NULL; 119} 120 121void 122option_parser_t::add_group (GOptionEntry *entries, 123 const gchar *name, 124 const gchar *description, 125 const gchar *help_description, 126 option_group_t *option_group) 127{ 128 GOptionGroup *group = g_option_group_new (name, description, help_description, 129 static_cast<gpointer>(option_group), NULL); 130 g_option_group_add_entries (group, entries); 131 g_option_group_set_parse_hooks (group, pre_parse, post_parse); 132 g_option_context_add_group (context, group); 133} 134 135void 136option_parser_t::parse (int *argc, char ***argv) 137{ 138 setlocale (LC_ALL, ""); 139 140 GError *parse_error = NULL; 141 if (!g_option_context_parse (context, argc, argv, &parse_error)) 142 { 143 if (parse_error != NULL) { 144 fail (true, "%s", parse_error->message); 145 //g_error_free (parse_error); 146 } else 147 fail (true, "Option parse error"); 148 } 149} 150 151 152static gboolean 153parse_margin (const char *name G_GNUC_UNUSED, 154 const char *arg, 155 gpointer data, 156 GError **error G_GNUC_UNUSED) 157{ 158 view_options_t *view_opts = (view_options_t *) data; 159 view_options_t::margin_t &m = view_opts->margin; 160 switch (sscanf (arg, "%lf %lf %lf %lf", &m.t, &m.r, &m.b, &m.l)) { 161 case 1: m.r = m.t; 162 case 2: m.b = m.t; 163 case 3: m.l = m.r; 164 case 4: return true; 165 default: 166 g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE, 167 "%s argument should be one to four space-separated numbers", 168 name); 169 return false; 170 } 171} 172 173 174static gboolean 175parse_shapers (const char *name G_GNUC_UNUSED, 176 const char *arg, 177 gpointer data, 178 GError **error G_GNUC_UNUSED) 179{ 180 shape_options_t *shape_opts = (shape_options_t *) data; 181 g_strfreev (shape_opts->shapers); 182 shape_opts->shapers = g_strsplit (arg, ",", 0); 183 return true; 184} 185 186static G_GNUC_NORETURN gboolean 187list_shapers (const char *name G_GNUC_UNUSED, 188 const char *arg G_GNUC_UNUSED, 189 gpointer data G_GNUC_UNUSED, 190 GError **error G_GNUC_UNUSED) 191{ 192 for (const char **shaper = hb_shape_list_shapers (); *shaper; shaper++) 193 g_printf ("%s\n", *shaper); 194 195 exit(0); 196} 197 198 199static gboolean 200parse_features (const char *name G_GNUC_UNUSED, 201 const char *arg, 202 gpointer data, 203 GError **error G_GNUC_UNUSED) 204{ 205 shape_options_t *shape_opts = (shape_options_t *) data; 206 char *s = (char *) arg; 207 char *p; 208 209 shape_opts->num_features = 0; 210 g_free (shape_opts->features); 211 shape_opts->features = NULL; 212 213 if (!*s) 214 return true; 215 216 /* count the features first, so we can allocate memory */ 217 p = s; 218 do { 219 shape_opts->num_features++; 220 p = strchr (p, ','); 221 if (p) 222 p++; 223 } while (p); 224 225 shape_opts->features = (hb_feature_t *) calloc (shape_opts->num_features, sizeof (*shape_opts->features)); 226 227 /* now do the actual parsing */ 228 p = s; 229 shape_opts->num_features = 0; 230 while (p && *p) { 231 char *end = strchr (p, ','); 232 if (hb_feature_from_string (p, end ? end - p : -1, &shape_opts->features[shape_opts->num_features])) 233 shape_opts->num_features++; 234 p = end ? end + 1 : NULL; 235 } 236 237 return true; 238} 239 240 241void 242view_options_t::add_options (option_parser_t *parser) 243{ 244 GOptionEntry entries[] = 245 { 246 {"annotate", 0, 0, G_OPTION_ARG_NONE, &this->annotate, "Annotate output rendering", NULL}, 247 {"background", 0, 0, G_OPTION_ARG_STRING, &this->back, "Set background color (default: " DEFAULT_BACK ")", "red/#rrggbb/#rrggbbaa"}, 248 {"foreground", 0, 0, G_OPTION_ARG_STRING, &this->fore, "Set foreground color (default: " DEFAULT_FORE ")", "red/#rrggbb/#rrggbbaa"}, 249 {"line-space", 0, 0, G_OPTION_ARG_DOUBLE, &this->line_space, "Set space between lines (default: 0)", "units"}, 250 {"margin", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_margin, "Margin around output (default: " G_STRINGIFY(DEFAULT_MARGIN) ")","one to four numbers"}, 251 {"font-size", 0, 0, G_OPTION_ARG_DOUBLE, &this->font_size, "Font size (default: " G_STRINGIFY(DEFAULT_FONT_SIZE) ")","size"}, 252 {NULL} 253 }; 254 parser->add_group (entries, 255 "view", 256 "View options:", 257 "Options controlling output rendering", 258 this); 259} 260 261void 262shape_options_t::add_options (option_parser_t *parser) 263{ 264 GOptionEntry entries[] = 265 { 266 {"list-shapers", 0, G_OPTION_FLAG_NO_ARG, 267 G_OPTION_ARG_CALLBACK, (gpointer) &list_shapers, "List available shapers and quit", NULL}, 268 {"shaper", 0, G_OPTION_FLAG_HIDDEN, 269 G_OPTION_ARG_CALLBACK, (gpointer) &parse_shapers, "Hidden duplicate of --shapers", NULL}, 270 {"shapers", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_shapers, "Comma-separated list of shapers to try","list"}, 271 {"direction", 0, 0, G_OPTION_ARG_STRING, &this->direction, "Set text direction (default: auto)", "ltr/rtl/ttb/btt"}, 272 {"language", 0, 0, G_OPTION_ARG_STRING, &this->language, "Set text language (default: $LANG)", "langstr"}, 273 {"script", 0, 0, G_OPTION_ARG_STRING, &this->script, "Set text script (default: auto)", "ISO-15924 tag"}, 274 {"bot", 0, 0, G_OPTION_ARG_NONE, &this->bot, "Treat text as beginning-of-paragraph", NULL}, 275 {"eot", 0, 0, G_OPTION_ARG_NONE, &this->eot, "Treat text as end-of-paragraph", NULL}, 276 {"preserve-default-ignorables",0, 0, G_OPTION_ARG_NONE, &this->preserve_default_ignorables, "Preserve Default-Ignorable characters", NULL}, 277 {"utf8-clusters", 0, 0, G_OPTION_ARG_NONE, &this->utf8_clusters, "Use UTF8 byte indices, not char indices", NULL}, 278 {"normalize-glyphs",0, 0, G_OPTION_ARG_NONE, &this->normalize_glyphs, "Rearrange glyph clusters in nominal order", NULL}, 279 {NULL} 280 }; 281 parser->add_group (entries, 282 "shape", 283 "Shape options:", 284 "Options controlling the shaping process", 285 this); 286 287 const gchar *features_help = "Comma-separated list of font features\n" 288 "\n" 289 " Features can be enabled or disabled, either globally or limited to\n" 290 " specific character ranges.\n" 291 "\n" 292 " The range indices refer to the positions between Unicode characters,\n" 293 " unless the --utf8-clusters is provided, in which case range indices\n" 294 " refer to UTF-8 byte indices. The position before the first character\n" 295 " is always 0.\n" 296 "\n" 297 " The format is Python-esque. Here is how it all works:\n" 298 "\n" 299 " Syntax: Value: Start: End:\n" 300 "\n" 301 " Setting value:\n" 302 " \"kern\" 1 0 ∞ # Turn feature on\n" 303 " \"+kern\" 1 0 ∞ # Turn feature on\n" 304 " \"-kern\" 0 0 ∞ # Turn feature off\n" 305 " \"kern=0\" 0 0 ∞ # Turn feature off\n" 306 " \"kern=1\" 1 0 ∞ # Turn feature on\n" 307 " \"aalt=2\" 2 0 ∞ # Choose 2nd alternate\n" 308 "\n" 309 " Setting index:\n" 310 " \"kern[]\" 1 0 ∞ # Turn feature on\n" 311 " \"kern[:]\" 1 0 ∞ # Turn feature on\n" 312 " \"kern[5:]\" 1 5 ∞ # Turn feature on, partial\n" 313 " \"kern[:5]\" 1 0 5 # Turn feature on, partial\n" 314 " \"kern[3:5]\" 1 3 5 # Turn feature on, range\n" 315 " \"kern[3]\" 1 3 3+1 # Turn feature on, single char\n" 316 "\n" 317 " Mixing it all:\n" 318 "\n" 319 " \"aalt[3:5]=2\" 2 3 5 # Turn 2nd alternate on for range"; 320 321 GOptionEntry entries2[] = 322 { 323 {"features", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_features, features_help, "list"}, 324 {NULL} 325 }; 326 parser->add_group (entries2, 327 "features", 328 "Features options:", 329 "Options controlling font features used", 330 this); 331} 332 333void 334font_options_t::add_options (option_parser_t *parser) 335{ 336 GOptionEntry entries[] = 337 { 338 {"font-file", 0, 0, G_OPTION_ARG_STRING, &this->font_file, "Font file-name", "filename"}, 339 {"face-index", 0, 0, G_OPTION_ARG_INT, &this->face_index, "Face index (default: 0)", "index"}, 340 {NULL} 341 }; 342 parser->add_group (entries, 343 "font", 344 "Font options:", 345 "Options controlling the font", 346 this); 347} 348 349void 350text_options_t::add_options (option_parser_t *parser) 351{ 352 GOptionEntry entries[] = 353 { 354 {"text", 0, 0, G_OPTION_ARG_STRING, &this->text, "Set input text", "string"}, 355 {"text-file", 0, 0, G_OPTION_ARG_STRING, &this->text_file, "Set input text file-name\n\n If no text is provided, standard input is used for input.\n", "filename"}, 356 {"text-before", 0, 0, G_OPTION_ARG_STRING, &this->text_before, "Set text context before each line", "string"}, 357 {"text-after", 0, 0, G_OPTION_ARG_STRING, &this->text_after, "Set text context after each line", "string"}, 358 {NULL} 359 }; 360 parser->add_group (entries, 361 "text", 362 "Text options:", 363 "Options controlling the input text", 364 this); 365} 366 367void 368output_options_t::add_options (option_parser_t *parser) 369{ 370 const char *text; 371 372 if (NULL == supported_formats) 373 text = "Set output format"; 374 else 375 text = g_strdup_printf ("Set output format\n\n Supported formats are: %s", supported_formats); 376 377 GOptionEntry entries[] = 378 { 379 {"output-file", 0, 0, G_OPTION_ARG_STRING, &this->output_file, "Set output file-name (default: stdout)","filename"}, 380 {"output-format", 0, 0, G_OPTION_ARG_STRING, &this->output_format, text, "format"}, 381 {NULL} 382 }; 383 parser->add_group (entries, 384 "output", 385 "Output options:", 386 "Options controlling the output", 387 this); 388} 389 390 391 392hb_font_t * 393font_options_t::get_font (void) const 394{ 395 if (font) 396 return font; 397 398 hb_blob_t *blob = NULL; 399 400 /* Create the blob */ 401 { 402 char *font_data; 403 unsigned int len = 0; 404 hb_destroy_func_t destroy; 405 void *user_data; 406 hb_memory_mode_t mm; 407 408 /* This is a hell of a lot of code for just reading a file! */ 409 if (!font_file) 410 fail (true, "No font file set"); 411 412 if (0 == strcmp (font_file, "-")) { 413 /* read it */ 414 GString *gs = g_string_new (NULL); 415 char buf[BUFSIZ]; 416#if defined(_WIN32) || defined(__CYGWIN__) 417 setmode (fileno (stdin), _O_BINARY); 418#endif 419 while (!feof (stdin)) { 420 size_t ret = fread (buf, 1, sizeof (buf), stdin); 421 if (ferror (stdin)) 422 fail (false, "Failed reading font from standard input: %s", 423 strerror (errno)); 424 g_string_append_len (gs, buf, ret); 425 } 426 len = gs->len; 427 font_data = g_string_free (gs, false); 428 user_data = font_data; 429 destroy = (hb_destroy_func_t) g_free; 430 mm = HB_MEMORY_MODE_WRITABLE; 431 } else { 432 GError *error = NULL; 433 GMappedFile *mf = g_mapped_file_new (font_file, false, &error); 434 if (mf) { 435 font_data = g_mapped_file_get_contents (mf); 436 len = g_mapped_file_get_length (mf); 437 if (len) { 438 destroy = (hb_destroy_func_t) g_mapped_file_unref; 439 user_data = (void *) mf; 440 mm = HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE; 441 } else 442 g_mapped_file_unref (mf); 443 } else { 444 fail (false, "%s", error->message); 445 //g_error_free (error); 446 } 447 if (!len) { 448 /* GMappedFile is buggy, it doesn't fail if file isn't regular. 449 * Try reading. 450 * https://bugzilla.gnome.org/show_bug.cgi?id=659212 */ 451 GError *error = NULL; 452 gsize l; 453 if (g_file_get_contents (font_file, &font_data, &l, &error)) { 454 len = l; 455 destroy = (hb_destroy_func_t) g_free; 456 user_data = (void *) font_data; 457 mm = HB_MEMORY_MODE_WRITABLE; 458 } else { 459 fail (false, "%s", error->message); 460 //g_error_free (error); 461 } 462 } 463 } 464 465 blob = hb_blob_create (font_data, len, mm, user_data, destroy); 466 } 467 468 /* Create the face */ 469 hb_face_t *face = hb_face_create (blob, face_index); 470 hb_blob_destroy (blob); 471 472 473 font = hb_font_create (face); 474 475 unsigned int upem = hb_face_get_upem (face); 476 hb_font_set_scale (font, upem, upem); 477 hb_face_destroy (face); 478 479#ifdef HAVE_FREETYPE 480 hb_ft_font_set_funcs (font); 481#endif 482 483 return font; 484} 485 486 487const char * 488text_options_t::get_line (unsigned int *len) 489{ 490 if (text) { 491 if (text_len == (unsigned int) -1) 492 text_len = strlen (text); 493 494 if (!text_len) { 495 *len = 0; 496 return NULL; 497 } 498 499 const char *ret = text; 500 const char *p = (const char *) memchr (text, '\n', text_len); 501 unsigned int ret_len; 502 if (!p) { 503 ret_len = text_len; 504 text += ret_len; 505 text_len = 0; 506 } else { 507 ret_len = p - ret; 508 text += ret_len + 1; 509 text_len -= ret_len + 1; 510 } 511 512 *len = ret_len; 513 return ret; 514 } 515 516 if (!fp) { 517 if (!text_file) 518 fail (true, "At least one of text or text-file must be set"); 519 520 if (0 != strcmp (text_file, "-")) 521 fp = fopen (text_file, "r"); 522 else 523 fp = stdin; 524 525 if (!fp) 526 fail (false, "Failed opening text file `%s': %s", 527 text_file, strerror (errno)); 528 529 gs = g_string_new (NULL); 530 } 531 532 g_string_set_size (gs, 0); 533 char buf[BUFSIZ]; 534 while (fgets (buf, sizeof (buf), fp)) { 535 unsigned int bytes = strlen (buf); 536 if (bytes && buf[bytes - 1] == '\n') { 537 bytes--; 538 g_string_append_len (gs, buf, bytes); 539 break; 540 } 541 g_string_append_len (gs, buf, bytes); 542 } 543 if (ferror (fp)) 544 fail (false, "Failed reading text: %s", 545 strerror (errno)); 546 *len = gs->len; 547 return !*len && feof (fp) ? NULL : gs->str; 548} 549 550 551FILE * 552output_options_t::get_file_handle (void) 553{ 554 if (fp) 555 return fp; 556 557 if (output_file) 558 fp = fopen (output_file, "wb"); 559 else { 560#if defined(_WIN32) || defined(__CYGWIN__) 561 setmode (fileno (stdout), _O_BINARY); 562#endif 563 fp = stdout; 564 } 565 if (!fp) 566 fail (false, "Cannot open output file `%s': %s", 567 g_filename_display_name (output_file), strerror (errno)); 568 569 return fp; 570} 571 572static gboolean 573parse_verbose (const char *name G_GNUC_UNUSED, 574 const char *arg G_GNUC_UNUSED, 575 gpointer data G_GNUC_UNUSED, 576 GError **error G_GNUC_UNUSED) 577{ 578 format_options_t *format_opts = (format_options_t *) data; 579 format_opts->show_text = format_opts->show_unicode = format_opts->show_line_num = true; 580 return true; 581} 582 583void 584format_options_t::add_options (option_parser_t *parser) 585{ 586 GOptionEntry entries[] = 587 { 588 {"no-glyph-names", 0, G_OPTION_FLAG_REVERSE, G_OPTION_ARG_NONE, &this->show_glyph_names, "Use glyph indices instead of names", NULL}, 589 {"no-positions", 0, G_OPTION_FLAG_REVERSE, G_OPTION_ARG_NONE, &this->show_positions, "Do not show glyph positions", NULL}, 590 {"no-clusters", 0, G_OPTION_FLAG_REVERSE, G_OPTION_ARG_NONE, &this->show_clusters, "Do not show cluster mapping", NULL}, 591 {"show-text", 0, 0, G_OPTION_ARG_NONE, &this->show_text, "Show input text", NULL}, 592 {"show-unicode", 0, 0, G_OPTION_ARG_NONE, &this->show_unicode, "Show input Unicode codepoints", NULL}, 593 {"show-line-num", 0, 0, G_OPTION_ARG_NONE, &this->show_line_num, "Show line numbers", NULL}, 594 {"verbose", 0, G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK,(gpointer) &parse_verbose, "Show everything", NULL}, 595 {NULL} 596 }; 597 parser->add_group (entries, 598 "format", 599 "Format options:", 600 "Options controlling the formatting of buffer contents", 601 this); 602} 603 604void 605format_options_t::serialize_unicode (hb_buffer_t *buffer, 606 GString *gs) 607{ 608 unsigned int num_glyphs = hb_buffer_get_length (buffer); 609 hb_glyph_info_t *info = hb_buffer_get_glyph_infos (buffer, NULL); 610 611 g_string_append_c (gs, '<'); 612 for (unsigned int i = 0; i < num_glyphs; i++) 613 { 614 if (i) 615 g_string_append_c (gs, ','); 616 g_string_append_printf (gs, "U+%04X", info->codepoint); 617 info++; 618 } 619 g_string_append_c (gs, '>'); 620} 621 622void 623format_options_t::serialize_glyphs (hb_buffer_t *buffer, 624 hb_font_t *font, 625 hb_buffer_serialize_format_t output_format, 626 hb_buffer_serialize_flags_t flags, 627 GString *gs) 628{ 629 g_string_append_c (gs, '['); 630 unsigned int num_glyphs = hb_buffer_get_length (buffer); 631 unsigned int start = 0; 632 633 while (start < num_glyphs) { 634 char buf[1024]; 635 unsigned int consumed; 636 start += hb_buffer_serialize_glyphs (buffer, start, num_glyphs, 637 buf, sizeof (buf), &consumed, 638 font, output_format, flags); 639 if (!consumed) 640 break; 641 g_string_append (gs, buf); 642 } 643 g_string_append_c (gs, ']'); 644} 645void 646format_options_t::serialize_line_no (unsigned int line_no, 647 GString *gs) 648{ 649 if (show_line_num) 650 g_string_append_printf (gs, "%d: ", line_no); 651} 652void 653format_options_t::serialize_buffer_of_text (hb_buffer_t *buffer, 654 unsigned int line_no, 655 const char *text, 656 unsigned int text_len, 657 hb_font_t *font, 658 GString *gs) 659{ 660 if (show_text) { 661 serialize_line_no (line_no, gs); 662 g_string_append_c (gs, '('); 663 g_string_append_len (gs, text, text_len); 664 g_string_append_c (gs, ')'); 665 g_string_append_c (gs, '\n'); 666 } 667 668 if (show_unicode) { 669 serialize_line_no (line_no, gs); 670 serialize_unicode (buffer, gs); 671 g_string_append_c (gs, '\n'); 672 } 673} 674void 675format_options_t::serialize_message (unsigned int line_no, 676 const char *msg, 677 GString *gs) 678{ 679 serialize_line_no (line_no, gs); 680 g_string_append_printf (gs, "%s", msg); 681 g_string_append_c (gs, '\n'); 682} 683void 684format_options_t::serialize_buffer_of_glyphs (hb_buffer_t *buffer, 685 unsigned int line_no, 686 const char *text, 687 unsigned int text_len, 688 hb_font_t *font, 689 hb_buffer_serialize_format_t output_format, 690 hb_buffer_serialize_flags_t format_flags, 691 GString *gs) 692{ 693 serialize_line_no (line_no, gs); 694 serialize_glyphs (buffer, font, output_format, format_flags, gs); 695 g_string_append_c (gs, '\n'); 696} 697