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#include "defs.h"
#include "commands.h"
#include "dconv.h"
#include "set.h"
#include "global.h"
/*
* prescan fonts and mark chars used in dvi
*/
void
scanfont(PreLoad, hdfip)
BOOLEAN PreLoad; /* TRUE if all necessary fonts are loaded */
struct font_index **hdfip; /* *hdfip is not changed if PreLoad */
{
int SkipMode = FALSE; /* in skip mode flag */
int command; /* current command */
int count[10]; /* the 10 counters at begining of each page */
int i; /* command parameter; loop index */
int k; /* temporary parameter */
int val, val2; /* temporarys to hold command information*/
while (TRUE)
switch (command=DC_getcommand()) {
case SET1:case SET2:case SET3:case SET4:
val = DC_getuint(command-SET1+1);
if (!SkipMode) MarkChar(val);
break;
case SET_RULE:
case PUT_RULE:
DC_skipbytes(8);
break;
case PUT1:case PUT2:case PUT3:case PUT4:
val = DC_getuint(command-PUT1+1);
if (!SkipMode) MarkChar(val);
break;
case NOP:
break;
case BOP:
/* vf check */
for (i=0; i<=9; i++)
count[i] = DC_getuint(4);
(void)DC_getuint(4);
setcurfont((struct font_entry *)NULL);
SkipMode = (count[0] < FirstPage || count[0] > LastPage);
if (!SkipMode) {
dev_prebop(count[0]);
if (!G_quiet) {
#ifdef DEBUG
if (Debuguser)
(void)fprintf(stderr, "{bop:%d\n", count[0]);
else
#else
(void)fprintf(stderr, ".");
#endif
(void)fflush(stderr);
}
}
break;
case EOP:
if (!SkipMode) {
if (!G_quiet) {
#ifdef DEBUG
if (Debuguser) {
(void)fprintf(stderr, "eop}\n", count[0]);
(void)fflush(stderr);
}
#endif
}
}
break;
case RIGHT4:
case X4:
case W4:
case Y4:
case Z4:
case DOWN4:
DC_skipbytes(4);
break;
case RIGHT3:
case X3:
case W3:
case Y3:
case Z3:
case DOWN3:
DC_skipbytes(3);
break;
case RIGHT2:
case X2:
case W2:
case Y2:
case Z2:
case DOWN2:
DC_skipbytes(2);
break;
case RIGHT1:
case X1:
case W1:
case Y1:
case Z1:
case DOWN1:
DC_skipbytes(1);
break;
case PUSH:
case POP:
case X0:
case W0:
case Y0:
case Z0:
break;
case FNT1:case FNT2:case FNT3:case FNT4:
k = DC_getuint(command-FNT1+1);
if (!SkipMode) SetFntNum(k, *hdfip);
break;
case XXX1:case XXX2:case XXX3:case XXX4:
if ((k = DC_getuint(command-XXX1+1))+1 > SpecialSize) {
SpecialSize = k+256;
if ((SpecialStr = realloc(SpecialStr, (unsigned)SpecialSize))
== NULL)
Fatal("can't malloc space for special");
}
DC_getbytes(SpecialStr, k);
if (!SkipMode) dev_predospecial(SpecialStr, k);
break;
case FNT_DEF1:case FNT_DEF2:case FNT_DEF3:case FNT_DEF4:
/* vf check */
k = DC_getuint(command-FNT_DEF1+1);
if (PreLoad || HasBeenRead(k, *hdfip))
SkipFontDef();
else
ReadFontDef(k, hdfip);
break;
case PRE:
/* vf check */
Fatal("PRE occurs within file");
break;
case POST:
return;
break;
case POST_POST:
/* vf check */
Fatal("POST_POST with no preceding POST");
break;
case DIR:
DC_skipbytes(1);
break;
default:
if (command >= FONT_00 && command <= FONT_63) {
if (!SkipMode) SetFntNum(command-FONT_00, *hdfip);
} else if (command >= SETC_000 && command <= SETC_127) {
if (!SkipMode) MarkString(command);
} else
Fatal("%d is an undefined command", command);
break;
}
}
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