V9/cmd/troff/d202.c
/*
* drive 202 typesetter
*/
/*
output language from troff:
all numbers are character strings
sn size in points
fn font as number from 1-n
cx ascii character x
Cxyz funny char xyz. terminated by white space
Nn absolute character number n on this font. ditto
Hn go to absolute horizontal position n
Vn go to absolute vertical position n (down is positive)
hn go n units horizontally (relative)
vn ditto vertically
nnc move right nn, then print c (exactly 2 digits!)
(this wart is an optimization that shrinks output file size
about 35% and run-time about 15% while preserving ascii-ness)
Dt ...\n draw operation 't':
Dl x y line from here by x,y
Dc d circle of diameter d with left side here
De x y ellipse of axes x,y with left side here
Da dx dy dx dy arc counter-clockwise, center at dx,dx, end at dx,dy
D~ x y x y ... wiggly line by x,y then x,y ...
nb a end of line (information only -- no action needed)
w paddable word space -- no action needed
b = space before line, a = after
p new page begins -- set v to 0
#...\n comment
x ...\n device control functions:
x i init
x T s name of device is s
x r n h v resolution is n/inch
h = min horizontal motion, v = min vert
x p pause (can restart)
x s stop -- done for ever
x t generate trailer
x f n s font position n contains font s
x H n set character height to n
x S n set slant to N
Subcommands like "i" are often spelled out like "init".
*/
#include <stdio.h>
#include <ctype.h>
#include <signal.h>
#include "dev.h"
#define NFONT 50
int output = 0; /* do we do output at all? */
int nolist = 0; /* output page list if > 0 */
#define N_OLIST 100
int olist[N_OLIST]; /* pairs of page numbers */
int spage = 9999; /* stop every spage pages */
int scount = 0;
int xoffset = 0; /* units are typesetter goobies! */
struct dev dev;
struct Font *fontbase[NFONT+1];
short *pstab;
int nsizes;
int nfonts;
int smnt; /* index of first special font */
int nchtab;
char *chname;
short *chtab;
char *fitab[NFONT+1];
char *widthtab[NFONT+1]; /* widtab would be a better name */
char *codetab[NFONT+1]; /* device codes */
#define FATAL 1
#define BYTEMASK 0377
int dbg = 0;
int windowht = 250; /* resettable logical height of d202 faceplate */
int res; /* input assumed computed according to this resolution */
char *typesetter = "/dev/202";
FILE *tf = NULL; /* output file */
char *fontdir = "/usr/lib/font";
extern char devname[];
#define hmot(n) hpos += n
#define hgoto(n) hpos = n
#define vmot(n) vgoto(vpos + n)
int size = -1; /* this is invalid */
int font = -1; /* current font */
int hpos; /* horizontal position where we are supposed to be next (left = 0) */
int oldh; /* previous H position */
int vpos; /* current vertical position (down positive) */
int oldv; /* current pos in 1/4 point units */
int horig; /* h origin of current block; hpos rel to this */
int vorig;
int DX = 2; /* step size in x for drawing */
int DY = 2; /* step size in y for drawing */
int drawdot = 0; /* draw with this character */
int drawsize = 1; /* shrink by this factor when drawing */
main(argc, argv)
char *argv[];
{
FILE *fp;
int i;
int busyflag = 0;
int waitflag = 0;
int done();
while (argc > 1 && argv[1][0] == '-') {
switch (argv[1][1]) {
case 'f':
case 'F':
fontdir = argv[2];
argv++;
argc--;
break;
case 't':
tf = stdout;
break;
case 'o':
outlist(&argv[1][2]);
break;
case 'd':
dbg = atoi(&argv[1][2]);
if (dbg == 0) dbg = 1;
tf = stdout;
break;
case 'b':
busyflag = 1;
break;
case 'w':
waitflag = 1;
break;
case 's':
spage = atoi(&argv[1][2]);
if (spage <= 0)
spage = 9999;
break;
case 'x': /* x offset */
xoffset = atoi(&argv[1][2]);
break;
case 'i':
windowht = atoi(&argv[1][2]);
break;
case 'D':
if (argv[1][2] == 'X') DX = atoi(&argv[1][3]);
else if (argv[1][2] == 'Y') DY = atoi(&argv[1][3]);
else DX = DY = atoi(&argv[1][2]);
break;
case '.':
drawdot = argv[1][2];
break;
}
argc--;
argv++;
}
tryagain:
if (tf != stdout)
tf = fopen(typesetter, "w");
if (busyflag) {
printf(tf==NULL? "Busy.\n": "Available.\n");
exit(0);
}
if (tf == NULL) {
if (waitflag == 0) {
error(!FATAL, "can't open typesetter\n");
exit(1);
} else {
sleep(60);
goto tryagain;
}
}
if (signal(SIGINT, done) == SIG_IGN) {
signal(SIGINT, SIG_IGN);
signal(SIGQUIT, SIG_IGN);
signal(SIGHUP, SIG_IGN);
} else {
signal(SIGQUIT, done);
signal(SIGHUP, done);
}
signal(SIGTERM, done);
if (argc <= 1)
conv(stdin);
else
while (--argc > 0) {
if (strcmp(*++argv, "-") == 0)
fp = stdin;
else if ((fp = fopen(*argv, "r")) == NULL)
error(FATAL, "can't open %s", *argv);
conv(fp);
fclose(fp);
}
account();
done();
}
int maxolist = 9999; /* largest page number in -o */
outlist(s) /* process list of page numbers to be printed */
char *s;
{
int n1, n2, i;
nolist = 0;
while (*s) {
n1 = 0;
if (isdigit(*s))
do
n1 = 10 * n1 + *s++ - '0';
while (isdigit(*s));
else
n1 = -9999;
n2 = n1;
if (*s == '-') {
s++;
n2 = 0;
if (isdigit(*s))
do
n2 = 10 * n2 + *s++ - '0';
while (isdigit(*s));
else
n2 = 9999;
}
if (nolist > N_OLIST-2)
error(FATAL, "too many items in -o");
olist[nolist++] = n1;
olist[nolist++] = n2;
if (n2 > maxolist)
maxolist = n2;
if (*s != '\0')
s++;
}
olist[nolist] = 0;
if (dbg)
for (i=0; i<nolist; i += 2)
printf("%3d %3d\n", olist[i], olist[i+1]);
}
conv(fp)
register FILE *fp;
{
register int c, k, sign;
int m, n, i, n1, m1;
char str[100], buf[300];
while ((c = getc(fp)) != EOF) {
switch (c) {
case '\n': /* when input is text */
case ' ':
case 0: /* occasional noise creeps in */
break;
case '{': /* push down current environment */
t_push();
break;
case '}':
t_pop();
break;
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
/* two motion digits plus a character */
hmot((c-'0')*10 + getc(fp)-'0');
put1(getc(fp));
break;
case 'c': /* single ascii character */
put1(getc(fp));
break;
case 'C':
fscanf(fp, "%s", str);
put1s(str);
break;
case 'N': /* absolute character number */
fscanf(fp, "%d", &n);
put1a(n);
break;
case 't': /* straight text */
fgets(buf, sizeof(buf), fp);
t_text(buf);
break;
case 'D': /* draw function */
fgets(buf, sizeof(buf), fp);
switch (buf[0]) {
case 'l': /* draw a line */
sscanf(buf+1, "%d %d", &n, &m);
drawline(n, m, ".");
break;
case 'c': /* circle */
sscanf(buf+1, "%d", &n);
drawcirc(n);
break;
case 'e': /* ellipse */
sscanf(buf+1, "%d %d", &m, &n);
drawellip(m, n);
break;
case 'a': /* arc */
sscanf(buf+1, "%d %d %d %d", &n, &m, &n1, &m1);
drawarc(n, m, n1, m1);
break;
case '~': /* wiggly line */
drawwig(buf+1);
break;
default:
error(FATAL, "unknown drawing function %s\n", buf);
break;
}
break;
case 's':
fscanf(fp, "%d", &n); /* ignore fractional sizes */
setsize(t_size(n));
break;
case 'f':
fscanf(fp, "%s", str);
setfont(t_font(str));
break;
case 'H': /* absolute horizontal motion */
/* fscanf(fp, "%d", &n); */
while ((c = getc(fp)) == ' ')
;
k = 0;
do {
k = 10 * k + c - '0';
} while (isdigit(c = getc(fp)));
ungetc(c, fp);
hgoto(k);
break;
case 'h': /* relative horizontal motion */
/* fscanf(fp, "%d", &n); */
while ((c = getc(fp)) == ' ')
;
k = 0;
sign = 1;
if (c == '-') {
sign = -1;
c = getc(fp);
}
do {
k = 10 * k + c - '0';
} while (isdigit(c = getc(fp)));
ungetc(c, fp);
hmot(sign * k);
break;
case 'w': /* word space */
break;
case 'V':
fscanf(fp, "%d", &n);
vgoto(n);
break;
case 'v':
fscanf(fp, "%d", &n);
vmot(n);
break;
case 'p': /* new page */
fscanf(fp, "%d", &n);
t_page(n);
break;
case 'n': /* end of line */
while (getc(fp) != '\n')
;
t_newline();
break;
case '#': /* comment */
while (getc(fp) != '\n')
;
break;
case 'x': /* device control */
devcntrl(fp);
break;
default:
error(!FATAL, "unknown input character %o %c\n", c, c);
fprintf(stderr, "input context is:\n%c", c);
for (i = 0; i < 10; i++) {
if (fgets(buf, sizeof(buf), fp) == NULL)
break;
fprintf(stderr, "%s", buf);
}
done();
}
}
}
devcntrl(fp) /* interpret device control functions */
FILE *fp;
{
char str[20], str1[50], buf[50];
int c, n;
fscanf(fp, "%s", str);
switch (str[0]) { /* crude for now */
case 'i': /* initialize */
fileinit();
t_init(0);
break;
case 'T': /* device name */
fscanf(fp, "%s", devname);
if (strcmp(devname, "202") != 0) {
error(FATAL, "input file for %s, not 202", devname);
exit(1);
}
break;
case 't': /* trailer */
t_trailer();
break;
case 'p': /* pause -- can restart */
t_reset('p');
break;
case 's': /* stop */
t_reset('s');
break;
case 'r': /* resolution assumed when prepared */
fscanf(fp, "%d", &res);
break;
case 'f': /* font used */
fscanf(fp, "%d %s", &n, str);
fgets(buf, sizeof buf, fp); /* in case there's a filename */
ungetc('\n', fp); /* fgets goes too far */
str1[0] = 0; /* in case there's nothing to come in */
sscanf(buf, "%s", str1);
loadfont(n, str, str1);
invalidfont();
break;
/* these don't belong here... */
case 'H': /* char height */
fscanf(fp, "%d", &n);
t_charht(n);
break;
case 'S': /* slant */
fscanf(fp, "%d", &n);
t_slant(n);
break;
}
while ((c = getc(fp)) != '\n') /* skip rest of input line */
if (c == EOF)
break;
}
fileinit() /* read in font and code files, etc. */
{
int i, fin, nw, s;
char *malloc(), *filebase, *p;
char temp[60];
/* open table for device,
/* read in resolution, size info, font info, etc.
/* and set params
*/
sprintf(temp, "%s/dev%s/DESC.out", fontdir, devname);
if ((fin = open(temp, 0)) < 0)
error(FATAL, "can't open tables for %s\n", temp);
read(fin, &dev, sizeof(struct dev));
nfonts = dev.nfonts;
nsizes = dev.nsizes;
nchtab = dev.nchtab;
filebase = malloc(dev.filesize); /* enough room for whole file */
read(fin, filebase, dev.filesize); /* all at once */
pstab = (short *) filebase;
chtab = pstab + nsizes + 1;
chname = (char *) (chtab + dev.nchtab);
p = chname + dev.lchname;
for (i = 1; i <= nfonts; i++) {
fontbase[i] = (struct Font *) p;
nw = *p & BYTEMASK; /* 1st thing is width count */
if (smnt == 0 && fontbase[i]->specfont == 1)
smnt = i; /* first special font */
p += sizeof(struct Font); /* that's what's on the beginning */
widthtab[i] = p;
codetab[i] = p + 2 * nw;
fitab[i] = p + 3 * nw;
p += 3 * nw + dev.nchtab + 128 - 32;
t_fp(i, fontbase[i]->namefont, fontbase[i]->intname);
if(dbg > 1) fontprint(i);
}
fontbase[0] = (struct Font *) malloc(3*255 + dev.nchtab + (128-32) + sizeof (struct Font));
widthtab[0] = (char *) fontbase[0] + sizeof (struct Font);
fontbase[0]->nwfont = 255;
close(fin);
for (i = nfonts+1; i <= NFONT; i++)
fontbase[i] = 0;
}
fontprint(i) /* debugging print of font i (0,...) */
{
int j, k, n;
char *p;
printf("font %d:\n", i);
p = (char *) fontbase[i];
n = fontbase[i]->nwfont & BYTEMASK;
printf("base=0%o, nchars=%d, spec=%d, name=%s, widtab=0%o, fitab=0%o\n",
p, n, fontbase[i]->specfont, fontbase[i]->namefont, widthtab[i], fitab[i]);
printf("widths:\n");
for (j=0; j <= n; j++) {
printf(" %2d", widthtab[i][j] & BYTEMASK);
if (j % 20 == 19) printf("\n");
}
printf("\ncodetab:\n");
for (j=0; j <= n; j++) {
printf(" %2d", codetab[i][j] & BYTEMASK);
if (j % 20 == 19) printf("\n");
}
printf("\nfitab:\n");
for (j=0; j <= dev.nchtab + 128-32; j++) {
printf(" %2d", fitab[i][j] & BYTEMASK);
if (j % 20 == 19) printf("\n");
}
printf("\n");
}
loadfont(n, s, s1) /* load font info for font s on position n (0...) */
int n;
char *s, *s1;
{
char temp[60];
int fin, nw, norig, sz;
if (n < 0 || n > NFONT)
error(FATAL, "illegal fp command %d %s", n, s);
if (strcmp(s, fontbase[n]->namefont) == 0)
return;
if (s1 && s1[0])
s = s1;
sprintf(temp, "%s/dev%s/%s.out", fontdir, devname, s);
if (fontbase[n] == 0) {
sz = sizeof(struct Font) + 3 * 255 + dev.nchtab
+ 128 - 32;
fontbase[n] = (struct Font *) malloc(sz);
fontbase[n]->nwfont = 255;
if (n > nfonts)
nfonts = n;
}
if ((fin = open(temp, 0)) < 0)
error(FATAL, "can't open font table %s", temp);
norig = fontbase[n]->nwfont & BYTEMASK;
read(fin, fontbase[n], 3*norig + nchtab+128-32 + sizeof(struct Font));
if ((fontbase[n]->nwfont & BYTEMASK) > norig)
error(FATAL, "Font %s too big for position %d\n", s, n);
close(fin);
nw = fontbase[n]->nwfont & BYTEMASK;
widthtab[n] = (char *) fontbase[n] + sizeof(struct Font);
codetab[n] = (char *) widthtab[n] + 2 * nw;
fitab[n] = (char *) widthtab[n] + 3 * nw;
t_fp(n, fontbase[n]->namefont, fontbase[n]->intname);
fontbase[n]->nwfont = norig; /* so can later use full original size */
if (dbg > 1) fontprint(n);
}
done()
{
if (tf == NULL)
exit(1);
putint(0); /* some no-ops */
putint(0);
t_reset('s');
exit(0);
}
error(f, s, a1, a2, a3, a4, a5, a6, a7) {
fprintf(stderr, "d202: ");
fprintf(stderr, s, a1, a2, a3, a4, a5, a6, a7);
fprintf(stderr, "\n");
if (f)
done();
}
/*
Here beginneth all the stuff that really depends
on the 202 (we hope).
*/
char devname[20] = "202";
#define RES 972 /* 202 is 288 goobies per inch vertically */
/* but 972 horizontally! */
/* can get 486 vertically by using electronic baseline jump */
#define TRAILER (14 * res)
#define LMARGIN 0 /* left margin offset */
#define HMAX (48 * (res/6)) /* maximum horizontal size = 48 picas */
#define VMAX (15 * res) /* 15 inch page */
#define HOR 254 /* next int is horizontal motion */
#define ESCAPE 255 /* general-purpose escape for all others */
#define BASEINIT -162 /* initial baseline for 202 */
int lastc, lastw; /* last character and width (not used) */
int lastfont = -2; /* last real font sent to 202 */
invalidfont() { lastfont = -2; }
long paper; /* paper used */
int refscr = 0;
t_init(reinit) /* initialize device */
int reinit;
{
int i;
hpos = vpos = oldv = oldh = 0;
refscr = 0;
/* the above are not true until the code below happens*/
setsize(t_size(10)); /* start somewhere */
setfont(font = 1);
sendfont();
putesc("v");
putint(72); /* 1/4 inch initial lead */
putesc("j");
putint(BASEINIT);
putesc("H");
putint(0); /* make sure at left */
if (drawdot) { /* -. flag was given */
drawsize = 2;
} else {
for (i = 0; i < nchtab; i++)
if (strcmp(&chname[chtab[i]], "l.") == 0)
break;
if (i < nchtab) {
drawdot = i + 128;
drawsize = 1;
} else {
drawdot = '.';
drawsize = 2; /* half size */
}
}
}
#define MAXSTATE 5
struct state {
int ssize;
int sfont;
int shpos;
int svpos;
int shorig;
int svorig;
};
struct state state[MAXSTATE];
struct state *statep = state;
t_push() /* begin a new block */
{
hflush();
statep->ssize = size;
statep->sfont = font;
statep->shorig = horig;
statep->svorig = vorig;
statep->shpos = hpos;
statep->svpos = vpos;
horig = hpos;
vorig = vpos;
hpos = vpos = 0;
if (statep++ >= state+MAXSTATE)
error(FATAL, "{ nested too deep");
hpos = vpos = 0;
}
t_pop() /* pop to previous state */
{
if (--statep < state)
error(FATAL, "extra }");
size = statep->ssize;
font = statep->sfont;
hpos = statep->shpos;
vpos = statep->svpos;
horig = statep->shorig;
vorig = statep->svorig;
}
t_page(n) /* do whatever new page functions */
{
int i;
if (output) {
if (tf != stdout)
paper += vpos;
if (++scount >= spage) {
t_reset('p');
scount = 0;
}
}
refscr -= vpos;
vpos = 0;
oldv = 0;
output = 1;
putesc("p");
putint(n);
putesc("H");
putint(0);
putflush();
if (nolist == 0)
return; /* no -o specified */
if (n > maxolist) /* we've gone past the end */
done();
output = 0;
for (i = 0; i < nolist; i += 2)
if (n >= olist[i] && n <= olist[i+1]) {
output = 1;
break;
}
}
t_newline() /* do whatever for the end of a line */
{
hpos = 0; /* because we're now back at the left margin */
if (output)
putesc("n");
}
t_size(n) /* convert integer to internal size number*/
int n;
{
int i;
if (n <= pstab[0])
return(1);
else if (n >= pstab[nsizes-1])
return(nsizes);
for (i = 0; n > pstab[i]; i++)
;
return(i+1);
}
t_charht(n) /* set character height to n */
int n;
{
putesc("xH");
putint(n);
putc('\n', tf);
}
t_slant(n) /* set slant to n */
int n;
{
putesc("xS");
putint(n);
putc('\n', tf);
}
t_font(s) /* convert string to internal font number */
char *s;
{
int n;
n = atoi(s);
if (n < 0 || n > nfonts)
n = 1;
return(n);
}
t_text(s) /* print string s as text. not used */
char *s;
{
int c, w;
char str[100];
if (!output)
return;
while (c = *s++) {
if (c == '\\') {
switch (c = *s++) {
case '\\':
case 'e':
put1('\\');
break;
case '(':
str[0] = *s++;
str[1] = *s++;
str[2] = '\0';
put1s(str);
break;
}
} else {
put1(c);
}
hmot(lastw);
if (dbg) printf("width = %d\n", lastw);
}
}
t_reset(c)
{
int n;
if (output)
paper += vpos;
output = 1; /* by God */
if (c == 'p')
putesc("xp\n");
else
putesc("xs\n");
fflush(tf);
}
char *tracct = "/usr/adm/tracct";
account() /* record paper use */
{
FILE *f = NULL;
char *name, *getlogin();
if (tf == stdout)
return;
f = fopen(tracct, "a");
if(f != NULL) {
name = getlogin();
if (name == NULL)
name = "???";
fprintf(f, "%4d %s\n", (int)(paper/res + 20+6)/12, name);
}
}
t_trailer()
{
/* vpos = oldv = 0;
/* vgoto(TRAILER);
/* vpos = oldv = 0;
*/
}
hflush() /* actual horizontal output occurs here */
{
register int dh;
int htrue;
if (!output)
return;
htrue = hpos + horig;
dh = htrue - oldh;
if (dh > 0 && dh < 256) {
if (dbg)
printf(" h%d\n", dh & BYTEMASK);
else {
putc(HOR, tf);
putc(dh, tf);
}
} else if (dh != 0) {
if (dbg)
printf(" esc H %d\n", htrue+xoffset);
else {
putesc("H");
putint(htrue+xoffset);
}
}
oldh = htrue + horig;
}
vgoto(n)
{
int deltav, nelec, ps, vtrue, ntrue;
/* To understand this function, you need to know the
/* following characteristics of the 202:
/* one unit of electronic baseline jump = 1/486 inch;
/* one unit of mechanical motion = 1/288 inch;
/* further, mechanical motion accumulates and persists,
/* while electronic baseline jump persists but doesn't accumulate.
/* The window is 1296 units high, and we leave a margin on top of
/* 14*(current point size) and on the bottom of 4*(curr pt sz).
/* Our inductive assertion on entering this function
/* is that the current vertical position is within the margins.
/* If we want to move to a point between the margins, we
/* perform this motion with a pure electronic baseline jump.
/* Otherwise, we move the paper mechanically so that the desired
/* point is close to the top of the screen, subject to the margin
/* constraints.
*/
if (!output)
return;
if (dbg) printf(" vgoto %d to %d\n", vpos, n);
ps = (pstab[size]-1)>72?72:pstab[size-1];
vtrue = vpos + vorig;
ntrue = n + vorig;
if (refscr < ntrue || refscr - windowht - 14*ps > ntrue) {
/* mechanical motion */
deltav = ntrue - refscr;
if (deltav < 0 && deltav > -54)
deltav -= 54;
if (deltav > 0 && deltav < 54)
deltav += 54;
deltav = (deltav > 0) ? ((deltav/54)*54) : -((-(deltav-53)/54)*54);
if (deltav) {
putesc ("v");
if (deltav > 0)
putint(deltav/54*16);
else
putint(-(-deltav/54)*16);
refscr += deltav;
vtrue += deltav;
}
}
if (ntrue - vtrue) {
nelec = -(324 - (refscr - ntrue));
if (nelec > 0)
nelec /= 2;
else
nelec = -((-nelec) / 2);
putesc("j");
putint(nelec);
}
vpos = n;
}
put1s(s) /* s is a funny char name */
char *s;
{
int i;
static char lasti = 0; /* cache last hit */
if (!output)
return;
if (dbg) printf("%s ", s);
if (strcmp(&chname[chtab[lasti]], s) != 0)
for (i = 0; i < nchtab; i++)
if (strcmp(&chname[chtab[i]], s) == 0)
break;
if (i < nchtab)
put1(i + 128);
}
put1(c) /* output char c */
int c;
{
char *pw;
register char *p;
register int i, k;
int j, ofont, code, w;
if (!output)
return;
c -= 32;
if (c <= 0) {
if (dbg) printf("non-exist 0%o\n", c+32);
return;
}
k = ofont = font;
i = fitab[font][c] & BYTEMASK;
if (i != 0) { /* it's on this font */
p = codetab[font];
pw = widthtab[font];
} else if (smnt > 0) { /* on special (we hope) */
for (k=smnt, j=0; j <= nfonts; j++, k = (k+1) % (nfonts+1))
if ((i = fitab[k][c] & BYTEMASK) != 0) {
p = codetab[k];
pw = widthtab[k];
setfont(k);
break;
}
}
if (i == 0 || (code = p[i] & BYTEMASK) == 0 || k > nfonts) {
if (dbg) printf("not found 0%o\n", c+32);
return;
}
hflush();
sendfont();
if (dbg) {
if (isprint(c+32))
printf("%c %d\n", c+32, code);
else
printf(" C%d\n", code);
} else
putc(code, tf); /* character is < 254 */
font = ofont;
}
put1a(n) /* put single char by absolute number */
int n;
{
hflush();
sendfont();
if (dbg) {
if (isprint(n))
printf("%c %d\n", n, n);
else
printf(" N%d\n", n);
} else
putc(n, tf); /* character is < 254 */
}
setsize(n) /* set point size to n (internal) */
int n;
{
if (!output)
return;
if (n == size)
return; /* already there */
/* for now, only cope with integer sizes */
putesc("s");
putint(pstab[n-1]);
size = n;
}
/* font position info: */
struct {
char *name;
int number;
} fontname[NFONT+1];
t_fp(n, s, si) /* font position n now contains font s, intname si */
int n;
char *s, *si;
{
fontname[n].name = s;
fontname[n].number = atoi(si);
}
setfont(n) /* set font to n */
int n;
{
if (!output)
return;
if (n < 0 || n > NFONT)
error(FATAL, "illegal font %d\n", n);
font = n;
}
sendfont() /* actually send a font command if needed */
{
if (font != lastfont) {
putesc("f");
putint(fontname[font].number);
lastfont = font;
}
}
putint(n)
{
if (dbg) {
printf("%02d\n", n);
return;
}
putc(n>>8, tf);
putc(n, tf);
}
putesc(s)
register char *s;
{
if (dbg) {
printf(" esc %s ", s);
return;
}
putc(ESCAPE, tf);
while (*s)
putc(*s++, tf);
}
putflush() /* flush it out */
{
fflush(tf);
}