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PSTOPS.C
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C/C++ Source or Header
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1993-11-29
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4KB
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192 lines
/* pstops.c
* AJCD 27/1/91
* rearrange pages in conforming PS file for printing in signatures
*
* Usage:
* pstops [-q] [-b] [-d] [-w<dim>] [-h<dim>] [-ppaper] <pagespecs> [infile [outfile]]
*/
#include "psutil.h"
#include "psspec.h"
#include "patchlev.h"
void usage()
{
fprintf(stderr, "%s release %d patchlevel %d\n", prog, RELEASE, PATCHLEVEL);
fprintf(stderr, "Usage: %s [-q] [-b] [-wwidth] [-hheight] [-dlwidth] [-ppaper] <pagespecs> [infile [outfile]]\n",
prog);
fflush(stderr);
exit(1);
}
void argerror()
{
fprintf(stderr, "%s: page specification error:\n", prog);
fprintf(stderr, " <pagespecs> = [modulo:]<spec>\n");
fprintf(stderr, " <spec> = [-]pageno[@scale][L|R|U][(xoff,yoff)][,spec|+spec]\n");
fprintf(stderr, " modulo>=1, 0<=pageno<modulo\n");
fflush(stderr);
exit(1);
}
static int modulo = 1;
static int pagesperspec = 1;
struct pagespec *parsespecs(str)
char *str;
{
char *t;
struct pagespec *head, *tail;
int other = 0;
int num = -1;
head = tail = newspec();
while (*str) {
if (isdigit(*str)) {
num = parseint(&str);
} else {
switch (*str++) {
case ':':
if (other || head != tail || num < 1) argerror();
modulo = num;
num = -1;
break;
case '-':
tail->reversed = !tail->reversed;
break;
case '@':
if (num < 0) argerror();
tail->scale *= parsedouble(&str);
tail->flags |= SCALE;
break;
case 'l': case 'L':
tail->rotate += 90;
tail->flags |= ROTATE;
break;
case 'r': case 'R':
tail->rotate -= 90;
tail->flags |= ROTATE;
break;
case 'u': case 'U':
tail->rotate += 180;
tail->flags |= ROTATE;
break;
case '(':
tail->xoff += parsedimen(&str);
if (*str++ != ',') argerror();
tail->yoff += parsedimen(&str);
if (*str++ != ')') argerror();
tail->flags |= OFFSET;
break;
case '+':
tail->flags |= ADD_NEXT;
case ',':
if (num < 0 || num >= modulo) argerror();
if ((tail->flags & ADD_NEXT) == 0)
pagesperspec++;
tail->pageno = num;
tail->next = newspec();
tail = tail->next;
num = -1;
break;
default:
argerror();
}
other = 1;
}
}
if (num >= modulo)
argerror();
else if (num >= 0)
tail->pageno = num;
return (head);
}
main(argc, argv)
int argc;
char *argv[];
{
struct pagespec *specs = NULL;
int nobinding = 0;
double draw = 0;
struct papersize *paper;
#ifdef PAPER
if (paper = findpaper(PAPER)) {
width = (double)paper->width;
height = (double)paper->height;
}
#endif
infile = stdin;
outfile = stdout;
verbose = 1;
for (prog = *argv++; --argc; argv++) {
if (argv[0][0] == '-') {
switch (argv[0][1]) {
case 'q': /* quiet */
verbose = 0;
break;
case 'd': /* draw borders */
if (argv[0][2])
draw = singledimen(*argv+2);
else
draw = 1;
break;
case 'b': /* no bind operator */
nobinding = 1;
break;
case 'w': /* page width */
width = singledimen(*argv+2);
break;
case 'h': /* page height */
height = singledimen(*argv+2);
break;
case 'p': /* paper type */
if (paper = findpaper(*argv+2)) {
width = (double)paper->width;
height = (double)paper->height;
} else {
fprintf(stderr, "%s: paper size '%s' not recognised\n",
prog, *argv+2);
fflush(stderr);
exit(1);
}
break;
case 'v': /* version */
usage();
default:
if (specs == NULL)
specs = parsespecs(*argv);
else
usage();
}
} else if (specs == NULL)
specs = parsespecs(*argv);
else if (infile == stdin) {
if ((infile = fopen(*argv, "r")) == NULL) {
fprintf(stderr, "%s: can't open input file %s\n", prog, *argv);
fflush(stderr);
exit(1);
}
} else if (outfile == stdout) {
if ((outfile = fopen(*argv, "w")) == NULL) {
fprintf(stderr, "%s: can't open output file %s\n", prog, *argv);
fflush(stderr);
exit(1);
}
} else usage();
}
if (specs == NULL)
usage();
if ((infile=seekable(infile))==NULL) {
fprintf(stderr, "%s: can't seek input\n", prog);
fflush(stderr);
exit(1);
}
pstops(modulo, pagesperspec, nobinding, specs, draw);
exit(0);
}