/* fontmap.c: read files for additional font names. Copyright 1993, 1994, 1995, 1996, 1997, 2008, 2011-2013 Karl Berry. Copyright 2001, 2002, 2005 Olaf Weber. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, see . */ #include #include #include #include #include #include #include #include #include /* We have one and only one fontmap, so may as well make it static instead of passing it around. */ #ifndef MAP_NAME #define MAP_NAME "texfonts.map" #endif #ifndef MAP_HASH_SIZE #define MAP_HASH_SIZE 4001 #endif /* Return next whitespace-delimited token in STR or NULL if none. */ static string token (const_string str) { unsigned len; const_string start; string ret; while (*str && ISSPACE (*str)) str++; start = str; while (*str && !ISSPACE (*str)) str++; len = str - start; ret = (string)xmalloc (len + 1); strncpy (ret, start, len); ret[len] = 0; return ret; } /* Open and read the mapping file MAP_FILENAME, putting its entries into MAP. Comments begin with % and continue to the end of the line. Each line of the file defines an entry: the first word is the real filename (e.g., `ptmr'), the second word is the alias (e.g., `Times-Roman'), and any subsequent words are ignored. .tfm is added if either the filename or the alias have no extension. This is the same order as in Dvips' psfonts.map. Perhaps someday the programs will both read the same file. */ static void map_file_parse (kpathsea kpse, const_string map_filename) { char *orig_l; unsigned map_lineno = 0; FILE *f = xfopen (map_filename, FOPEN_R_MODE); if (kpse->record_input) kpse->record_input (map_filename); while ((orig_l = read_line (f)) != NULL) { string filename; string l = orig_l; /* save for free() */ string comment_loc = strrchr (l, '%'); if (!comment_loc) { comment_loc = strstr (l, "@c"); } /* Ignore anything after a % or @c. */ if (comment_loc) *comment_loc = 0; map_lineno++; /* Skip leading whitespace so we can use strlen below. Can't use strtok since this routine is recursive. */ while (*l && ISSPACE (*l)) l++; /* If we don't have any filename, that's ok, the line is blank. */ filename = token (l); if (filename) { string alias = token (l + strlen (filename)); if (STREQ (filename, "include")) { if (alias == NULL) { WARNING2 ("kpathsea: %s:%u: Filename argument for include directive missing", map_filename, map_lineno); } else { string include_fname = kpathsea_path_search (kpse, kpse->map_path, alias, false); if (include_fname) { map_file_parse (kpse, include_fname); if (include_fname != alias) free (include_fname); } else { WARNING3 ("kpathsea: %s:%u: Can't find fontname include file `%s'", map_filename, map_lineno, alias); } free (alias); free (filename); } /* But if we have a filename and no alias, something's wrong. */ } else if (alias == NULL) { WARNING3 ("kpathsea: %s:%u: Fontname alias missing for filename `%s'", map_filename, map_lineno, filename); free (filename); } else { /* We've got everything. Insert the new entry. They were already dynamically allocated by token(), so don't bother with xstrdup. */ hash_insert_normalized (&(kpse->map), alias, filename); } } free (orig_l); } xfclose (f, map_filename); } /* Parse the file MAP_NAME in each of the directories in PATH and return the resulting structure. Entries in earlier files override later files. */ static void read_all_maps (kpathsea kpse) { string *filenames; kpse->map_path = kpathsea_init_format (kpse, kpse_fontmap_format); filenames = kpathsea_all_path_search (kpse, kpse->map_path, MAP_NAME); kpse->map = hash_create (MAP_HASH_SIZE); while (*filenames) { map_file_parse (kpse, *filenames); filenames++; } } /* Look up KEY in texfonts.map's; if it's not found, remove any suffix from KEY and try again. Create the map if necessary. */ const_string * kpathsea_fontmap_lookup (kpathsea kpse, const_string key) { const_string *ret; const_string suffix = find_suffix (key); if (kpse->map.size == 0) { read_all_maps (kpse); } ret = hash_lookup (kpse->map, key); if (!ret) { /* OK, the original KEY didn't work. Let's check for the KEY without an extension -- perhaps they gave foobar.tfm, but the mapping only defines `foobar'. */ if (suffix) { string base_key = remove_suffix (key); ret = hash_lookup (kpse->map, base_key); free (base_key); } } /* Append any original suffix. */ if (ret && suffix) { const_string *elt; for (elt = ret; *elt; elt++) { *elt = extend_filename (*elt, suffix); } } return ret; }