V10/cmd/dimpress/makedev.c
/* @(#)makedev.c 1.2 */
/*
makedev:
read text info about a particular device
(e.g., cat, 202, aps5) from file, convert
it into internal (binary) form suitable for
fast reading by troff initialization (ptinit()).
Usage:
makedev DESC [ F ... ]
uses DESC to create a description file
using the information therein.
It creates the file DESC.out.
makedev F ...
makes the font tables for fonts F only,
creates files F.out.
DESC.out contains:
dev structure with fundamental sizes
list of sizes (nsizes+1) terminated by 0, as short's
indices of char names (nchtab * sizeof(short))
char names as hy\0em\0... (lchname)
nfonts occurrences of
widths (nwidth)
kerning (nwidth) [ascender+descender only so far]
codes (nwidth) to drive actual typesetter
fitab (nchtab+128-32)
each of these is an array of char.
dev.filesize contains the number of bytes
in the file, excluding the dev part itself.
F.out contains the font header, width, kern, codes, and fitab.
Width, kern and codes are parallel arrays.
(Which suggests that they ought to be together?)
Later, we might allow for codes which are actually
sequences of formatting info so characters can be drawn.
*/
#include "stdio.h"
#include "dev.h"
#define BMASK 0377
#define skipline(f) while(getc(f) != '\n')
struct dev dev;
struct Font font;
#define NSIZE 100 /* maximum number of sizes */
short size[NSIZE];
#define NCH 256 /* max number of characters with funny names */
char chname[5*NCH]; /* character names, including \0 for each */
short chtab[NCH]; /* index of character in chname */
#define NFITAB (NCH + 128-32) /* includes ascii chars, but not non-graphics */
char fitab[NFITAB]; /* font index table: position of char i on this font. */
/* zero if not there */
#define FSIZE 254 /* size of a physical font (e.g., 102 for cat) */
char width[FSIZE]; /* width table for a physical font */
char kern[FSIZE]; /* ascender+descender info */
char code[FSIZE]; /* actual device codes for a physical font */
#define BIGGESTFONT FSIZE /* biggest font if no size in DESC */
/* MUST be < 256 */
#define NFONT 60 /* max number of default fonts */
char fname[NFONT][10]; /* temp space to hold default font names */
int fflag = 0; /* on if font table to be written */
int fdout; /* output file descriptor */
char *fout = "DESC.out";
main(argc, argv)
char *argv[];
{
FILE *fin;
char cmd[100], *p;
int i, totfont, v;
if ((fin = fopen("DESC", "r")) == NULL) {
fprintf(stderr, "makedev: can't open %s\n", argv[1]);
exit(1);
}
while (fscanf(fin, "%s", cmd) != EOF) {
if (cmd[0] == '#') /* comment */
skipline(fin);
else if (strcmp(cmd, "res") == 0) {
fscanf(fin, "%hd", &dev.res);
} else if (strcmp(cmd, "hor") == 0) {
fscanf(fin, "%hd", &dev.hor);
} else if (strcmp(cmd, "vert") == 0) {
fscanf(fin, "%hd", &dev.vert);
} else if (strcmp(cmd, "unitwidth") == 0) {
fscanf(fin, "%hd", &dev.unitwidth);
} else if (strcmp(cmd, "sizescale") == 0) {
fscanf(fin, "%hd", &dev.sizescale);
} else if (strcmp(cmd, "paperwidth") == 0) {
fscanf(fin, "%hd", &dev.paperwidth);
} else if (strcmp(cmd, "paperlength") == 0) {
fscanf(fin, "%hd", &dev.paperlength);
} else if (strcmp(cmd, "biggestfont") == 0) {
fscanf(fin, "%hd", &dev.biggestfont);
} else if (strcmp(cmd, "spare2") == 0) {
fscanf(fin, "%hd", &dev.spare2);
} else if (strcmp(cmd, "sizes") == 0) {
dev.nsizes = 0;
while (fscanf(fin, "%d", &v) != EOF && v != 0)
size[dev.nsizes++] = v;
size[dev.nsizes] = 0; /* need an extra 0 at the end */
} else if (strcmp(cmd, "fonts") == 0) {
fscanf(fin, "%hd", &dev.nfonts);
for (i = 0; i < dev.nfonts; i++)
fscanf(fin, "%s", fname[i]);
} else if (strcmp(cmd, "charset") == 0) {
p = chname;
dev.nchtab = 0;
while (fscanf(fin, "%s", p) != EOF) {
chtab[dev.nchtab++] = p - chname;
while (*p++) /* skip to end of name */
;
}
dev.lchname = p - chname;
chtab[dev.nchtab++] = 0; /* terminate properly */
} else
fprintf(stderr, "makedev: unknown command %s\n", cmd);
}
if (argc > 0 && strcmp(argv[1], "DESC") == 0) {
fdout = creat(fout, 0666);
if (fdout < 0) {
fprintf(stderr, "makedev: can't open %s\n", fout);
exit(1);
}
write(fdout, &dev, sizeof(struct dev));
write(fdout, size, (dev.nsizes+1) * sizeof(size[0])); /* we need a 0 on the end */
write(fdout, chtab, dev.nchtab * sizeof(chtab[0]));
write(fdout, chname, dev.lchname);
totfont = 0;
for (i = 0; i < dev.nfonts; i++) {
totfont += dofont(fname[i]);
write(fdout, &font, sizeof(struct Font));
write(fdout, width, font.nwfont & BMASK);
write(fdout, kern, font.nwfont & BMASK);
write(fdout, code, font.nwfont & BMASK);
write(fdout, fitab, dev.nchtab+128-32);
}
lseek(fdout, 0L, 0); /* back to beginning to install proper size */
dev.filesize = /* excluding dev struct itself */
(dev.nsizes+1) * sizeof(size[0])
+ dev.nchtab * sizeof(chtab[0])
+ dev.lchname * sizeof(char)
+ totfont * sizeof(char);
write(fdout, &dev, sizeof(struct dev));
close(fdout);
argc--;
argv++;
}
for (i = 1; i < argc; i++)
dofont(argv[i]);
exit(0);
}
dofont(name) /* create fitab and width tab for font */
char *name;
{
FILE *fin;
int fdout;
int i, nw, spacewidth, n, v;
char buf[100], ch[10], s1[10], s2[10], s3[10], cmd[30];
if ((fin = fopen(name, "r")) == NULL) {
fprintf(stderr, "makedev: can't open font %s\n", name);
exit(2);
}
sprintf(cmd, "%s.out", name);
fdout = creat(cmd, 0666);
for (i = 0; i < NFITAB; i++)
fitab[i] = 0;
for (i = 0; i < FSIZE; i++)
width[i] = kern[i] = code[i] = 0;
font.specfont = font.ligfont = spacewidth = 0;
while (fscanf(fin, "%s", cmd) != EOF) {
if (cmd[0] == '#')
skipline(fin);
else if (strcmp(cmd, "name") == 0)
fscanf(fin, "%s", font.namefont);
else if (strcmp(cmd, "internalname") == 0)
fscanf(fin, "%s", font.intname);
else if (strcmp(cmd, "special") == 0)
font.specfont = 1;
else if (strcmp(cmd, "spare1") == 0)
fscanf(fin, "%1s", &font.spare1);
else if (strcmp(cmd, "ligatures") == 0) {
font.ligfont = getlig(fin);
} else if (strcmp(cmd, "spacewidth") == 0) {
fscanf(fin, "%d", &spacewidth);
width[0] = spacewidth; /* width of space on this font */
} else if (strcmp(cmd, "charset") == 0) {
skipline(fin);
nw = 0;
/* widths are origin 1 so fitab==0 can mean "not there" */
while (fgets(buf, 100, fin) != NULL) {
sscanf(buf, "%s %s %s %s", ch, s1, s2, s3);
if (s1[0] != '"') { /* it's a genuine new character */
nw++;
width[nw] = atoi(s1);
kern[nw] = atoi(s2);
/* temporarily, pick up one byte as code */
if (s3[0] == '0')
sscanf(s3, "%o", &i);
else
sscanf(s3, "%d", &i);
code[nw] = i;
}
/* otherwise it's a synonym for previous character,
/* so leave previous values intact
*/
if (strlen(ch) == 1) /* it's ascii */
fitab[ch[0] - 32] = nw; /* fitab origin omits non-graphics */
else { /* it has a funny name */
for (i = 0; i < dev.nchtab; i++)
if (strcmp(&chname[chtab[i]], ch) == 0) {
fitab[i + 128-32] = nw; /* starts after the ascii */
break;
}
if (i >= dev.nchtab)
fprintf(stderr, "makedev: font %s: %s not in charset\n", name, ch);
}
}
nw++;
if (dev.biggestfont > 0)
n = dev.biggestfont + 1;
else
n = BIGGESTFONT;
if (n >= NCH) {
fprintf(stderr, "makedev: font has %d characters, too big\n", n);
exit(2);
}
font.nwfont = n;
}
}
if (spacewidth == 0)
width[0] = dev.res * dev.unitwidth / 72 / 3;
fclose(fin);
write(fdout, &font, sizeof(struct Font));
write(fdout, width, font.nwfont & BMASK);
write(fdout, kern, font.nwfont & BMASK);
write(fdout, code, font.nwfont & BMASK);
write(fdout, fitab, dev.nchtab+128-32);
close(fdout);
v = sizeof(struct Font) + 3 * n + dev.nchtab + 128-32;
fprintf(stderr, "%3s: %3d chars, width %3d, size %3d\n",
font.namefont, nw, width[0], v);
return v;
}
getlig(fin) /* pick up ligature list */
FILE *fin;
{
int lig;
char temp[100];
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\n", temp);
}
skipline(fin);
return lig;
}