/*
 *   Skips over a page, collecting possible font definitions.  A very simple
 *   case statement insures we maintain sync with the dvi file by collecting
 *   the necessary parameters; but font definitions must be processed normally.
 */
#include "dvips.h" /* The copyright notice in that file is included too! */

/*
 *   The external declarations:
 */
#include "protos.h"

/*
 *   And now the big routine.
 */
void
skippage(void)
{
   register shalfword cmd;
   register integer i;

#ifdef DEBUG
   if (dd(D_PAGE))
#ifdef SHORTINT
   fprintf(stderr,"Skipping page %ld\n", pagenum);
#else   /* ~SHORTINT */
   fprintf(stderr,"Skipping page %d\n", pagenum);
#endif  /* ~SHORTINT */
#endif  /* DEBUG */
/* skipover(40); skip rest of bop command? how did this get in here? */
   bopcolor(0);
   while ((cmd=dvibyte())!=140) {
     switch (cmd) {
case 255: /* pTeX's dir or undefined */
   if (!noptex) {
      cmd = dvibyte();
      break;
   }
/* illegal commands */
case 139: case 247: case 248: case 249: /* bop, pre, post, post_post */
case 250: case 251: case 252: case 253: case 254: /* undefined */
         sprintf(errbuf,
            "! DVI file contains unexpected command (%d)",cmd);
         error(errbuf);
/* eight byte commands */
case 132: case 137:
   cmd = dvibyte();
   cmd = dvibyte();
   cmd = dvibyte();
   cmd = dvibyte();
/* four byte commands */
case 131: case 136:
case 146: case 151: case 156: case 160: case 165: case 170: case 238:
   cmd = dvibyte();
/* three byte commands */
case 130: case 135:
case 145: case 150: case 155: case 159: case 164: case 169: case 237:
   cmd = dvibyte();
/* two byte commands */
case 129: case 134:
case 144: case 149: case 154: case 158: case 163: case 168: case 236:
   cmd = dvibyte();
/* one byte commands */
case 128: case 133:
case 143: case 148: case 153: case 157: case 162: case 167: case 235:
   cmd = dvibyte();
   break;
/* specials */
case 239: i = dvibyte(); predospecial(i, 0); break;
case 240: i = twobytes(); predospecial(i, 0); break;
case 241: i = threebytes(); predospecial(i, 0); break;
case 242: i = signedquad(); predospecial(i, 0); break;
/* font definition */
case 243: case 244: case 245: case 246:
   fontdef(cmd - 242);
   break;
default:;
      }
   }
}
