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#ifndef lint
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static const char RCSid[] = "$Id: impress.c,v 1.4 2003/11/15 02:13:37 schorsch Exp $";
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#endif
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/*
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* Program to convert meta-files to imPress format
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*
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*
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* 1/2/86
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*/
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#include "rtprocess.h"
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#include "meta.h"
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#include "imPcodes.h"
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#include "imPfuncs.h"
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#include "plot.h"
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#define XCOM "pexpand +OCIsv -P %s"
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char *progname;
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FILE *imout;
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static short newpage = TRUE;
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static void doprim(register PRIMITIVE *p);
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static void doglobal(register PRIMITIVE *g);
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int
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main(
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int argc,
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char **argv
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)
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{
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FILE *fp;
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short condonly, conditioned;
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char comargs[200], command[300];
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progname = *argv++;
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argc--;
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condonly = FALSE;
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conditioned = FALSE;
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while (argc && **argv == '-') {
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switch (*(*argv+1)) {
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case 'c':
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condonly = TRUE;
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break;
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case 'r':
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conditioned = TRUE;
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break;
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default:
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error(WARNING, "unknown option");
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break;
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}
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argv++;
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argc--;
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}
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imInit();
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if (conditioned) {
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if (argc)
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while (argc) {
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fp = efopen(*argv, "r");
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plot(fp);
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fclose(fp);
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argv++;
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argc--;
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}
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else
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plot(stdin);
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} else {
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comargs[0] = '\0';
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while (argc) {
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strcat(comargs, " ");
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strcat(comargs, *argv);
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argv++;
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argc--;
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}
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sprintf(command, XCOM, comargs);
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if (condonly)
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return(system(command));
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else {
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if ((fp = popen(command, "r")) == NULL)
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error(SYSTEM, "cannot execute input filter");
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plot(fp);
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pclose(fp);
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}
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}
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if (!newpage)
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imEndPage();
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imEof();
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return(0);
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}
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void
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plot( /* plot meta-file */
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register FILE *infp
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)
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{
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PRIMITIVE nextp;
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do {
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readp(&nextp, infp);
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while (isprim(nextp.com)) {
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doprim(&nextp);
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fargs(&nextp);
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readp(&nextp, infp);
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}
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doglobal(&nextp);
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fargs(&nextp);
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} while (nextp.com != PEOF);
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}
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void
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doglobal( /* execute a global command */
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register PRIMITIVE *g
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)
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{
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switch (g->com) {
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case PEOF:
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break;
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case PDRAW:
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fflush(stdout);
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break;
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case PEOP:
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if (!newpage)
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imEndPage(); /* don't waste paper */
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newpage = TRUE;
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break;
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case PSET:
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set(g->arg0, g->args);
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break;
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case PUNSET:
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unset(g->arg0);
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break;
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case PRESET:
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reset(g->arg0);
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break;
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default:
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sprintf(errmsg, "unknown command '%c' in doglobal", g->com);
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error(WARNING, errmsg);
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break;
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}
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}
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void
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doprim( /* plot primitive */
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register PRIMITIVE *p
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)
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{
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switch (p->com) {
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case PMSTR:
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printstr(p);
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break;
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case PLSEG:
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plotlseg(p);
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break;
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case PRFILL:
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fillrect(p);
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break;
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case PTFILL:
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filltri(p);
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break;
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case PPFILL:
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fillpoly(p);
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break;
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default:
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sprintf(errmsg, "unknown command '%c' in doprim", p->com);
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error(WARNING, errmsg);
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return;
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}
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newpage = FALSE;
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}
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