diff options
Diffstat (limited to 'src/cmd/troff/t11.c')
| -rw-r--r-- | src/cmd/troff/t11.c | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/src/cmd/troff/t11.c b/src/cmd/troff/t11.c new file mode 100644 index 00000000..5511748c --- /dev/null +++ b/src/cmd/troff/t11.c @@ -0,0 +1,255 @@ +#include "tdef.h" +#include "fns.h" +#include "ext.h" + +#define MAXCH NCHARS /* maximum number of global char names */ +char *chnames[MAXCH]; /* chnames[n-ALPHABET] -> name of char n */ +int nchnames; /* number of Cxy names currently seen */ + +#define MAXPS 100 /* max number of point sizes */ +int pstab[MAXPS]; /* point sizes */ +int nsizes; /* number in DESC */ + +Font fonts[MAXFONTS+1]; /* font info + ptr to width info */ + + +#define skipline(f) while (getc(f) != '\n') + +#define eq(s1, s2) (strcmp(s1, s2) == 0) + +getdesc(char *name) +{ + FILE *fin; + char cmd[100], s[100]; + int i, v; + + if ((fin = fopen(unsharp(name), "r")) == NULL) + return -1; + while (fscanf(fin, "%s", cmd) != EOF) { + if (strcmp(cmd, "res") == 0) { + fscanf(fin, "%d", &Inch); + } else if (strcmp(cmd, "hor") == 0) { + fscanf(fin, "%d", &Hor); + } else if (strcmp(cmd, "vert") == 0) { + fscanf(fin, "%d", &Vert); + } else if (strcmp(cmd, "unitwidth") == 0) { + fscanf(fin, "%d", &Unitwidth); + } else if (strcmp(cmd, "sizes") == 0) { + nsizes = 0; + while (fscanf(fin, "%d", &v) != EOF && v != 0 && nsizes < MAXPS) + pstab[nsizes++] = v; + } else if (strcmp(cmd, "fonts") == 0) { + fscanf(fin, "%d", &nfonts); + for (i = 1; i <= nfonts; i++) { + fscanf(fin, "%s", s); + fontlab[i] = PAIR(s[0], s[1]); + } + } else if (strcmp(cmd, "charset") == 0) { /* add any names */ + while (fscanf(fin, "%s", s) != EOF) + chadd(s, Troffchar, Install); + break; + } + /* else + just skip anything else */ + skipline(fin); + } + fclose(fin); + return 1; +} + +static int checkfont(char *name) +{ /* in case it's not really a font description file */ + /* really paranoid, but consider \f. */ + FILE *fp; + char buf[300], buf2[300]; + int i, status = -1; + + if ((fp = fopen(unsharp(name), "r")) == NULL) + return -1; + for (i = 1; i <= 10; i++) { + if (fgets(buf, sizeof buf, fp) == NULL) + break; + sscanf(buf, "%s", buf2); + if (buf2[0] == '#') { + i--; + continue; + } + if (eq(buf2, "name") || eq(buf2, "fontname") || + eq(buf2, "special") || eq(buf2, "charset")) { + status = 1; + break; + } + } + fclose(fp); + return status; + +} + +getfont(char *name, int pos) /* create width tab for font */ +{ + FILE *fin; + Font *ftemp = &fonts[pos]; + Chwid chtemp[MAXCH]; + static Chwid chinit; + int i, nw, n, wid, kern, code, type; + char buf[100], ch[100], s1[100], s2[100], s3[100], cmd[300]; + + /* fprintf(stderr, "read font %s onto %d\n", name, pos); */ + if (checkfont(name) == -1) + return -1; + if ((fin = fopen(unsharp(name), "r")) == NULL) + return -1; + for (i = 0; i < ALPHABET; i++) + chtemp[i] = chinit; /* zero out to begin with */ + ftemp->specfont = ftemp->ligfont = 0; + ftemp->defaultwidth = ftemp->spacewidth = Inch * Unitwidth / 72 / 3; /* should be rounded */ + while (fscanf(fin, "%s", cmd) != EOF) { + if (strcmp(cmd, "name") == 0) + fscanf(fin, "%s", ftemp->longname); + else if (strcmp(cmd, "special") == 0) + ftemp->specfont = 1; + else if (strcmp(cmd, "ligatures") == 0) { + ftemp->ligfont = getlig(fin); + } else if (strcmp(cmd, "spacewidth") == 0) { + fscanf(fin, "%d", &ftemp->spacewidth); + } else if (strcmp(cmd, "defaultwidth") == 0) { + fscanf(fin, "%d", &ftemp->defaultwidth); + } else if (strcmp(cmd, "charset") == 0) { + wchar_t wc; + skipline(fin); + nw = ALPHABET; + while (fgets(buf, sizeof buf, fin) != NULL) { + sscanf(buf, "%s %s %s %s", ch, s1, s2, s3); + if (s1[0] != '"') { /* genuine new character */ + sscanf(s1, "%d", &wid); + sscanf(s2, "%d", &kern); + code = strtol(s3, 0, 0); /* dec/oct/hex */ + } + /* otherwise it's a synonym for prev character, */ + /* so leave previous values intact */ + + + /* decide what kind of alphabet it might come from here */ + + + if (strlen(ch) == 1) { /* it's ascii */ + n = ch[0]; /* origin includes non-graphics */ + chtemp[n].num = ch[0]; + } else if (ch[0] == '\\' && ch[1] == '0') { + n = strtol(ch+1, 0, 0); /* \0octal or \0xhex */ + chtemp[n].num = n; +#ifdef UNICODE + } else if (mbtowc(&wc, ch, strlen(ch)) > 1) { + chtemp[nw].num = chadd(ch, MBchar, Install); + n = nw; + nw++; +#endif /*UNICODE*/ + } else { + if (strcmp(ch, "---") == 0) { /* no name */ + sprintf(ch, "%d", code); + type = Number; + } else + type = Troffchar; + chtemp[nw].num = chadd(ch, type, Install); + n = nw; + nw++; + } + chtemp[n].wid = wid; + chtemp[n].kern = kern; + chtemp[n].code = code; + /*fprintf(stderr, "font %2.2s char %4.4s num %3d wid %2d code %3d\n", + ftemp->longname, ch, n, wid, code); + */ + } + break; + } + skipline(fin); + } + fclose(fin); + chtemp[' '].wid = ftemp->spacewidth; /* width of space on this font */ + ftemp->nchars = nw; + if (ftemp->wp) + free(ftemp->wp); /* god help us if this wasn't allocated */ + ftemp->wp = (Chwid *) malloc(nw * sizeof(Chwid)); + if (ftemp->wp == NULL) + return -1; + for (i = 0; i < nw; i++) + ftemp->wp[i] = chtemp[i]; +/* + * printf("%d chars: ", nw); + * for (i = 0; i < nw; i++) + * if (ftemp->wp[i].num > 0 && ftemp->wp[i].num < ALPHABET) { + * printf("%c %d ", ftemp->wp[i].num, ftemp->wp[i].wid); + * else if (i >= ALPHABET) + * printf("%d (%s) %d ", ftemp->wp[i].num, + * chnames[ftemp->wp[i].num-ALPHABET], ftemp->wp[i].wid); + * } + * printf("\n"); + */ + return 1; +} + +chadd(char *s, int type, int install) /* add s to global character name table; */ +{ /* or just look it up */ + + /* a temporary kludge: store the "type" as the first character */ + /* of the string, so we can remember from whence it came */ + + char *p; + int i; + +/* fprintf(stderr, "into chadd %s %c %c\n", s, type, install); /* */ + for (i = 0; i < nchnames; i++) + if (type == chnames[i][0] && eq(s, chnames[i]+1)) /* +1 since type at front */ + break; +/* fprintf(stderr, "i %d, nchnames %d\n", i, nchnames); /* */ + if (i < nchnames) /* found same type and bytes at position i */ + return ALPHABET + i; + else if (install == Lookup) /* not found, and we were just looking */ + return -1; + + chnames[nchnames] = p = (char *) malloc(strlen(s)+1+1); /* type + \0 */ + if (p == NULL) { + ERROR "out of space adding character %s", s WARN; + return LEFTHAND; + } + if (nchnames >= NCHARS - ALPHABET) { + ERROR "out of table space adding character %s", s WARN; + return LEFTHAND; + } + strcpy(chnames[nchnames]+1, s); + chnames[nchnames][0] = type; +/* fprintf(stderr, "installed %c%s at %d\n", type, s, nchnames); /* */ + return nchnames++ + ALPHABET; +} + +char *chname(int n) /* return string for char with index n */ +{ /* includes type char at front, to be peeled off elsewhere */ + if (n >= ALPHABET && n < nchnames + ALPHABET) + return chnames[n-ALPHABET]; + else + return ""; +} + +getlig(FILE *fin) /* pick up ligature list */ +{ + int lig; + char temp[200]; + + lig = 0; + while (fscanf(fin, "%s", temp) != EOF && strcmp(temp, "0") != 0) { + if (strcmp(temp, "fi") == 0) + lig |= LFI; + else if (strcmp(temp, "fl") == 0) + lig |= LFL; + else if (strcmp(temp, "ff") == 0) + lig |= LFF; + else if (strcmp(temp, "ffi") == 0) + lig |= LFFI; + else if (strcmp(temp, "ffl") == 0) + lig |= LFFL; + else + fprintf(stderr, "illegal ligature %s ignored\n", temp); + } + return lig; +} |