1 #include "tdef.h" 2 #include "fns.h" 3 #include "ext.h" 4 5 #define MAXCH NCHARS /* maximum number of global char names */ 6 char *chnames[MAXCH]; /* chnames[n-ALPHABET] -> name of char n */ 7 int nchnames; /* number of Cxy names currently seen */ 8 9 #define MAXPS 100 /* max number of point sizes */ 10 int pstab[MAXPS]; /* point sizes */ 11 int nsizes; /* number in DESC */ 12 13 Font fonts[MAXFONTS+1]; /* font info + ptr to width info */ 14 15 16 #define skipline(f) while (getc(f) != '\n') 17 18 #define eq(s1, s2) (strcmp(s1, s2) == 0) 19 20 getdesc(char *name) 21 { 22 FILE *fin; 23 char cmd[100], s[100]; 24 int i, v; 25 26 if ((fin = fopen(name, "r")) == NULL) 27 return -1; 28 while (fscanf(fin, "%s", cmd) != EOF) { 29 if (strcmp(cmd, "res") == 0) { 30 fscanf(fin, "%d", &Inch); 31 } else if (strcmp(cmd, "hor") == 0) { 32 fscanf(fin, "%d", &Hor); 33 } else if (strcmp(cmd, "vert") == 0) { 34 fscanf(fin, "%d", &Vert); 35 } else if (strcmp(cmd, "unitwidth") == 0) { 36 fscanf(fin, "%d", &Unitwidth); 37 } else if (strcmp(cmd, "sizes") == 0) { 38 nsizes = 0; 39 while (fscanf(fin, "%d", &v) != EOF && v != 0 && nsizes < MAXPS) 40 pstab[nsizes++] = v; 41 } else if (strcmp(cmd, "fonts") == 0) { 42 fscanf(fin, "%d", &nfonts); 43 for (i = 1; i <= nfonts; i++) { 44 fscanf(fin, "%s", s); 45 fontlab[i] = PAIR(s[0], s[1]); 46 } 47 } else if (strcmp(cmd, "charset") == 0) { /* add any names */ 48 while (fscanf(fin, "%s", s) != EOF) 49 chadd(s, Troffchar, Install); 50 break; 51 } 52 /* else 53 just skip anything else */ 54 skipline(fin); 55 } 56 fclose(fin); 57 return 1; 58 } 59 60 static int checkfont(char *name) 61 { /* in case it's not really a font description file */ 62 /* really paranoid, but consider \f. */ 63 FILE *fp; 64 char buf[300], buf2[300]; 65 int i, status = -1; 66 67 if ((fp = fopen(name, "r")) == NULL) 68 return -1; 69 for (i = 1; i <= 10; i++) { 70 if (fgets(buf, sizeof buf, fp) == NULL) 71 break; 72 sscanf(buf, "%s", buf2); 73 if (buf2[0] == '#') { 74 i--; 75 continue; 76 } 77 if (eq(buf2, "name") || eq(buf2, "fontname") || 78 eq(buf2, "special") || eq(buf2, "charset")) { 79 status = 1; 80 break; 81 } 82 } 83 fclose(fp); 84 return status; 85 86 } 87 88 getfont(char *name, int pos) /* create width tab for font */ 89 { 90 FILE *fin; 91 Font *ftemp = &fonts[pos]; 92 Chwid chtemp[MAXCH]; 93 static Chwid chinit; 94 int i, nw, n, wid, kern, code, type; 95 char buf[100], ch[100], s1[100], s2[100], s3[100], cmd[300]; 96 97 /* fprintf(stderr, "read font %s onto %d\n", name, pos); */ 98 if (checkfont(name) == -1) 99 return -1; 100 if ((fin = fopen(name, "r")) == NULL) 101 return -1; 102 for (i = 0; i < ALPHABET; i++) 103 chtemp[i] = chinit; /* zero out to begin with */ 104 ftemp->specfont = ftemp->ligfont = 0; 105 ftemp->defaultwidth = ftemp->spacewidth = Inch * Unitwidth / 72 / 3; /* should be rounded */ 106 while (fscanf(fin, "%s", cmd) != EOF) { 107 if (strcmp(cmd, "name") == 0) 108 fscanf(fin, "%s", ftemp->longname); 109 else if (strcmp(cmd, "special") == 0) 110 ftemp->specfont = 1; 111 else if (strcmp(cmd, "ligatures") == 0) { 112 ftemp->ligfont = getlig(fin); 113 } else if (strcmp(cmd, "spacewidth") == 0) { 114 fscanf(fin, "%d", &ftemp->spacewidth); 115 } else if (strcmp(cmd, "defaultwidth") == 0) { 116 fscanf(fin, "%d", &ftemp->defaultwidth); 117 } else if (strcmp(cmd, "charset") == 0) { 118 wchar_t wc; 119 skipline(fin); 120 nw = ALPHABET; 121 while (fgets(buf, sizeof buf, fin) != NULL) { 122 sscanf(buf, "%s %s %s %s", ch, s1, s2, s3); 123 if (s1[0] != '"') { /* genuine new character */ 124 sscanf(s1, "%d", &wid); 125 sscanf(s2, "%d", &kern); 126 code = strtol(s3, 0, 0); /* dec/oct/hex */ 127 } 128 /* otherwise it's a synonym for prev character, */ 129 /* so leave previous values intact */ 130 131 132 /* decide what kind of alphabet it might come from here */ 133 134 135 if (strlen(ch) == 1) { /* it's ascii */ 136 n = ch[0]; /* origin includes non-graphics */ 137 chtemp[n].num = ch[0]; 138 } else if (ch[0] == '\\' && ch[1] == '0') { 139 n = strtol(ch+1, 0, 0); /* \0octal or \0xhex */ 140 chtemp[n].num = n; 141 #ifdef UNICODE 142 } else if (mbtowc(&wc, ch, strlen(ch)) > 1) { 143 chtemp[nw].num = chadd(ch, MBchar, Install); 144 n = nw; 145 nw++; 146 #endif /*UNICODE*/ 147 } else { 148 if (strcmp(ch, "---") == 0) { /* no name */ 149 sprintf(ch, "%d", code); 150 type = Number; 151 } else 152 type = Troffchar; 153 chtemp[nw].num = chadd(ch, type, Install); 154 n = nw; 155 nw++; 156 } 157 chtemp[n].wid = wid; 158 chtemp[n].kern = kern; 159 chtemp[n].code = code; 160 /*fprintf(stderr, "font %2.2s char %4.4s num %3d wid %2d code %3d\n", 161 ftemp->longname, ch, n, wid, code); 162 */ 163 } 164 break; 165 } 166 skipline(fin); 167 } 168 fclose(fin); 169 chtemp[' '].wid = ftemp->spacewidth; /* width of space on this font */ 170 ftemp->nchars = nw; 171 if (ftemp->wp) 172 free(ftemp->wp); /* god help us if this wasn't allocated */ 173 ftemp->wp = (Chwid *) malloc(nw * sizeof(Chwid)); 174 if (ftemp->wp == NULL) 175 return -1; 176 for (i = 0; i < nw; i++) 177 ftemp->wp[i] = chtemp[i]; 178 /* 179 * printf("%d chars: ", nw); 180 * for (i = 0; i < nw; i++) 181 * if (ftemp->wp[i].num > 0 && ftemp->wp[i].num < ALPHABET) { 182 * printf("%c %d ", ftemp->wp[i].num, ftemp->wp[i].wid); 183 * else if (i >= ALPHABET) 184 * printf("%d (%s) %d ", ftemp->wp[i].num, 185 * chnames[ftemp->wp[i].num-ALPHABET], ftemp->wp[i].wid); 186 * } 187 * printf("\n"); 188 */ 189 return 1; 190 } 191 192 chadd(char *s, int type, int install) /* add s to global character name table; */ 193 { /* or just look it up */ 194 195 /* a temporary kludge: store the "type" as the first character */ 196 /* of the string, so we can remember from whence it came */ 197 198 char *p; 199 int i; 200 201 /* fprintf(stderr, "into chadd %s %c %c\n", s, type, install); /* */ 202 for (i = 0; i < nchnames; i++) 203 if (type == chnames[i][0] && eq(s, chnames[i]+1)) /* +1 since type at front */ 204 break; 205 /* fprintf(stderr, "i %d, nchnames %d\n", i, nchnames); /* */ 206 if (i < nchnames) /* found same type and bytes at position i */ 207 return ALPHABET + i; 208 else if (install == Lookup) /* not found, and we were just looking */ 209 return -1; 210 211 chnames[nchnames] = p = (char *) malloc(strlen(s)+1+1); /* type + \0 */ 212 if (p == NULL) { 213 ERROR "out of space adding character %s", s WARN; 214 return LEFTHAND; 215 } 216 if (nchnames >= NCHARS - ALPHABET) { 217 ERROR "out of table space adding character %s", s WARN; 218 return LEFTHAND; 219 } 220 strcpy(chnames[nchnames]+1, s); 221 chnames[nchnames][0] = type; 222 /* fprintf(stderr, "installed %c%s at %d\n", type, s, nchnames); /* */ 223 return nchnames++ + ALPHABET; 224 } 225 226 char *chname(int n) /* return string for char with index n */ 227 { /* includes type char at front, to be peeled off elsewhere */ 228 if (n >= ALPHABET && n < nchnames + ALPHABET) 229 return chnames[n-ALPHABET]; 230 else 231 return ""; 232 } 233 234 getlig(FILE *fin) /* pick up ligature list */ 235 { 236 int lig; 237 char temp[200]; 238 239 lig = 0; 240 while (fscanf(fin, "%s", temp) != EOF && strcmp(temp, "0") != 0) { 241 if (strcmp(temp, "fi") == 0) 242 lig |= LFI; 243 else if (strcmp(temp, "fl") == 0) 244 lig |= LFL; 245 else if (strcmp(temp, "ff") == 0) 246 lig |= LFF; 247 else if (strcmp(temp, "ffi") == 0) 248 lig |= LFFI; 249 else if (strcmp(temp, "ffl") == 0) 250 lig |= LFFL; 251 else 252 fprintf(stderr, "illegal ligature %s ignored\n", temp); 253 } 254 return lig; 255 } 256