mkfn.c

   1 /*
   2  * NEATMKFN - GENERATE NEATROFF FONT DESCRIPTIONS
   3  *
   4  * Copyright (C) 2012-2016 Ali Gholami Rudi <ali at rudi dot ir>
   5  *
   6  * Permission to use, copy, modify, and/or distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18 #include <stdio.h>
  19 #include <string.h>
  20 #include <stdlib.h>
  21 #include "trfn.h"
  22
  23 #define LEN(a)          ((sizeof(a) / sizeof((a)[0])))
  24
  25 static char *trfn_scripts;      /* filtered scripts */
  26 static char *trfn_langs;        /* filtered languages */
  27
  28 /* OpenType specifies a specific feature order for different scripts */
  29 static char *scriptorder[][2] = {
  30         {"latn", "ccmp,liga,clig,dist,kern,mark,mkmk"},
  31         {"cyrl", "ccmp,liga,clig,dist,kern,mark,mkmk"},
  32         {"grek", "ccmp,liga,clig,dist,kern,mark,mkmk"},
  33         {"armn", "ccmp,liga,clig,dist,kern,mark,mkmk"},
  34         {"geor", "ccmp,liga,clig,dist,kern,mark,mkmk"},
  35         {"runr", "ccmp,liga,clig,dist,kern,mark,mkmk"},
  36         {"ogam", "ccmp,liga,clig,dist,kern,mark,mkmk"},
  37         {"arab", "ccmp,isol,fina,medi,init,rlig,calt,liga,dlig,cswh,mset,curs,kern,mark,mkmk"},
  38         {"bugi", "locl,ccmp,rlig,liga,clig,calt,kern,dist,mark,mkmk"},
  39         {"hang", "ccmp,ljmo,vjmo,tjmo"},
  40         {"hebr", "ccmp,dlig,kern,mark"},
  41         {"bng2", "locl,nukt,akhn,rphf,blwf,half,pstf,vatu,cjct,init,pres,abvs,blws,psts,haln,calt,kern,dist,abvm,blwm"},
  42         {"dev2", "locl,nukt,akhn,rphf,blwf,half,pstf,vatu,cjct,init,pres,abvs,blws,psts,haln,calt,kern,dist,abvm,blwm"},
  43         {"gjr2", "locl,nukt,akhn,rphf,blwf,half,pstf,vatu,cjct,init,pres,abvs,blws,psts,haln,calt,kern,dist,abvm,blwm"},
  44         {"gur2", "locl,nukt,akhn,rphf,blwf,half,pstf,vatu,cjct,init,pres,abvs,blws,psts,haln,calt,kern,dist,abvm,blwm"},
  45         {"knd2", "locl,nukt,akhn,rphf,blwf,half,pstf,vatu,cjct,init,pres,abvs,blws,psts,haln,calt,kern,dist,abvm,blwm"},
  46         {"mlym", "locl,nukt,akhn,rphf,blwf,half,pstf,vatu,cjct,init,pres,abvs,blws,psts,haln,calt,kern,dist,abvm,blwm"},
  47         {"ory2", "locl,nukt,akhn,rphf,blwf,half,pstf,vatu,cjct,init,pres,abvs,blws,psts,haln,calt,kern,dist,abvm,blwm"},
  48         {"tml2", "locl,nukt,akhn,rphf,blwf,half,pstf,vatu,cjct,init,pres,abvs,blws,psts,haln,calt,kern,dist,abvm,blwm"},
  49         {"tml2", "locl,nukt,akhn,rphf,blwf,half,pstf,vatu,cjct,init,pres,abvs,blws,psts,haln,calt,kern,dist,abvm,blwm"},
  50         {"telu", "locl,nukt,akhn,rphf,blwf,half,pstf,vatu,cjct,init,pres,abvs,blws,psts,haln,calt,kern,dist,abvm,blwm"},
  51         {"java", "locl,pref,abvf,blwf,pstf,pres,abvs,blws,psts,ccmp,rlig,liga,clig,calt,kern,dist,mark,mkmk"},
  52         {"khmr", "pref,blwf,abvf,pstf,pres,blws,abvs,psts,clig,dist,blwm,abvm,mkmk"},
  53         {"lao ", "ccmp,kern,mark,mkmk"},
  54         {"mym2", "locl,rphf,pref,blwf,pstf,pres,abvs,blws,psts,kern,dist,mark,mkmk"},
  55         {"sinh", "locl,ccmp,akhn,rphf,vatu,pstf,pres,abvs,blws,psts,kern,dist,abvm,blwm"},
  56         {"syrc", "stch,ccmp,isol,fina,fin2,fin3,medi,med2,init,rlig,calt,liga,dlig,kern,mark,mkmk"},
  57         {"thaa", "kern,mark"},
  58         {"thai", "ccmp,kern,mark,mkmk"},
  59         {"tibt", "ccmp,abvs,blws,calt,liga,kern,abvm,blwm,mkmk"},
  60 };
  61
  62 /* return 1 if the given script is to be included */
  63 int trfn_script(char *script, int nscripts)
  64 {
  65         /* fill trfn_scripts (if unspecified) in the first call */
  66         if (!trfn_scripts) {
  67                 if (nscripts == 1 || !script)
  68                         return 1;
  69                 if (!strcmp("DFLT", script))
  70                         trfn_scripts = "DFLT";
  71                 else
  72                         trfn_scripts = "latn";
  73         }
  74         if (!strcmp("help", trfn_scripts))
  75                 fprintf(stderr, "script: %s\n", script ? script : "");
  76         if (strchr(script, ' '))
  77                 *strchr(script, ' ') = '\0';
  78         return !!strstr(trfn_scripts, script);
  79 }
  80
  81 /* return 1 if the given language is to be included */
  82 int trfn_lang(char *lang, int nlangs)
  83 {
  84         if (!trfn_langs)
  85                 return nlangs == 1 || !lang;
  86         if (!lang)
  87                 lang = "";
  88         if (!strcmp("help", trfn_langs))
  89                 fprintf(stderr, "lang: %s\n", lang);
  90         if (strchr(lang, ' '))
  91                 *strchr(lang, ' ') = '\0';
  92         return !!strstr(trfn_langs, lang);
  93 }
  94
  95 /* return the rank of the given feature, for the current script */
  96 int trfn_featrank(char *scrp, char *feat)
  97 {
  98         static char **order;
  99         int i;
 100         if (!order || strcmp(scrp, order[0])) {
 101                 order = NULL;
 102                 for (i = 0; i < LEN(scriptorder); i++)
 103                         if (!strcmp(scrp, scriptorder[i][0]))
 104                                 order = scriptorder[i];
 105         }
 106         if (order && strstr(order[1], feat))
 107                 return strstr(order[1], feat) - order[1];
 108         return 1000;
 109 }
 110
 111 int otf_read(void);
 112 int afm_read(void);
 113 void otf_feat(int res, int kmin, int warn);
 114
 115 static char *usage =
 116         "Usage: mktrfn [options] <input >output\n"
 117         "Options:\n"
 118         "  -a      \tread an AFM file (default)\n"
 119         "  -o      \tread an OTF file\n"
 120         "  -s      \tspecial font\n"
 121         "  -p name \toverride font postscript name\n"
 122         "  -t name \tset font troff name\n"
 123         "  -r res  \tset device resolution (720)\n"
 124         "  -k kmin \tspecify the minimum amount of kerning (0)\n"
 125         "  -b      \tinclude glyph bounding boxes\n"
 126         "  -l      \tsuppress the ligatures line\n"
 127         "  -n      \tsuppress glyph positions\n"
 128         "  -S scrs \tcomma-separated list of scripts to include (help to list)\n"
 129         "  -L langs\tcomma-separated list of languages to include (help to list)\n"
 130         "  -w      \twarn about unsupported font features\n";
 131
 132 int main(int argc, char *argv[])
 133 {
 134         int afm = 1;
 135         int res = 720;
 136         int spc = 0;
 137         int kmin = 0;
 138         int bbox = 0;
 139         int warn = 0;
 140         int ligs = 1;
 141         int pos = 1;
 142         int i;
 143         for (i = 1; i < argc && argv[i][0] == '-'; i++) {
 144                 switch (argv[i][1]) {
 145                 case 'a':
 146                         afm = 1;
 147                         break;
 148                 case 'b':
 149                         bbox = 1;
 150                         break;
 151                 case 'k':
 152                         kmin = atoi(argv[i][2] ? argv[i] + 2 : argv[++i]);
 153                         break;
 154                 case 'l':
 155                         ligs = 0;
 156                         break;
 157                 case 'L':
 158                         trfn_langs = argv[i][2] ? argv[i] + 2 : argv[++i];
 159                         break;
 160                 case 'n':
 161                         pos = 0;
 162                         break;
 163                 case 'o':
 164                         afm = 0;
 165                         break;
 166                 case 'p':
 167                         trfn_psfont(argv[i][2] ? argv[i] + 2 : argv[++i]);
 168                         break;
 169                 case 'r':
 170                         res = atoi(argv[i][2] ? argv[i] + 2 : argv[++i]);
 171                         break;
 172                 case 's':
 173                         spc = 1;
 174                         break;
 175                 case 'S':
 176                         trfn_scripts = argv[i][2] ? argv[i] + 2 : argv[++i];
 177                         break;
 178                 case 't':
 179                         trfn_trfont(argv[i][2] ? argv[i] + 2 : argv[++i]);
 180                         break;
 181                 case 'w':
 182                         warn = 1;
 183                         break;
 184                 default:
 185                         printf("%s", usage);
 186                         return 0;
 187                 }
 188         }
 189         trfn_init(res, spc, kmin, bbox, ligs, pos);
 190         if (afm)
 191                 afm_read();
 192         else
 193                 otf_read();
 194         trfn_print();
 195         if (!afm)
 196                 otf_feat(res, kmin, warn);
 197         trfn_done();
 198         return 0;
 199 }