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/*
* funtions for analyzing dvi in vf-file (vfd stands for vf-file dvi)
*/
#include "defs.h"
#include "commands.h"
#include "dconv.h"
#include "global.h"
int vfd_getcommand();
void vfd_backupone();
void vfd_getbytes();
void vfd_skipbytes();
int vfd_getuint();
int vfd_getint();
void vfd_movedown();
void vfd_movedown_v();
void vfd_moveover();
void vfd_moveover_v();
void vfd_setrule();
void vfd_setrule_v();
struct dconv vfd_dconv_templ = {
vfd_getcommand,
vfd_backupone,
vfd_getbytes,
vfd_skipbytes,
vfd_getuint,
vfd_getint,
NULL,
NULL,
NULL,
vfd_movedown,
vfd_movedown_v,
vfd_moveover,
vfd_moveover_v,
vfd_setrule,
vfd_setrule_v,
0
};
int
vfd_getcommand()
{
dc_bufbeg++;
return (dc_bufbeg > dc_bufend ? POST : *(dc_bufbeg-1));
}
void
vfd_backupone()
{
--dc_bufbeg;
}
void
vfd_getbytes(cp, n)
char *cp;
int n;
{
(void)strncpy(cp, (char *)dc_bufbeg, n);
dc_bufbeg += n;
}
void
vfd_skipbytes(n)
int n;
{
dc_bufbeg += n;
}
int
vfd_getuint(n)
int n;
{
int x;
x = makeuint(dc_bufbeg, n);
dc_bufbeg += n;
return x;
}
int
vfd_getint(n)
int n;
{
int x;
x = makeint(dc_bufbeg, n);
dc_bufbeg += n;
return x;
}
void
vfd_movedown(a)
int a;
{
v += scale(a, dc_scale);
}
void
vfd_movedown_v(a)
int a;
{
h -= scale(a, dc_scale);
}
void
vfd_moveover(b)
int b;
{
h += scale(b, dc_scale);
}
void
vfd_moveover_v(b)
int b;
{
v += scale(b, dc_scale);
}
void
vfd_setrule(a, b, Set) /* this routine will draw a rule */
int a, b;
BOOLEAN Set;
{
dfd_setrule(scale(a, dc_scale), scale(b, dc_scale));
}
void
vfd_setrule_v(a, b, Set) /* this routine will draw a rule */
int a, b;
BOOLEAN Set;
{
dfd_setrule_v(scale(a, dc_scale), scale(b, dc_scale));
}
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