roff.c

   1 /*
   2  * neatroff troff clone
   3  *
   4  * Copyright (C) 2012-2013 Ali Gholami Rudi <ali at rudi dot ir>
   5  *
   6  * This program is released under the modified BSD license.
   7  */
   8 #include <stdarg.h>
   9 #include <stdio.h>
  10 #include <string.h>
  11 #include "roff.h"
  12
  13 static void g_init(void)
  14 {
  15         n_o = SC_IN;
  16         n_p = SC_IN * 11;
  17         n_lg = 1;
  18 }
  19
  20 static void compile(void)
  21 {
  22         out("s%d\n", n_s);
  23         out("f%d\n", n_f);
  24         render();
  25         out("V%d\n", n_p);
  26 }
  27
  28 void errmsg(char *fmt, ...)
  29 {
  30         va_list ap;
  31         va_start(ap, fmt);
  32         vfprintf(stderr, fmt, ap);
  33         va_end(ap);
  34 }
  35
  36 int main(int argc, char **argv)
  37 {
  38         int i;
  39         char path[PATHLEN];
  40         dev_open(TROFFROOT "/font/devutf");
  41         env_init();
  42         tr_init();
  43         g_init();
  44         for (i = 1; i < argc; i++) {
  45                 if (argv[i][0] != '-' || !argv[i][0])
  46                         break;
  47                 if (argv[i][1] == 'm') {
  48                         sprintf(path, TROFFROOT "/tmac/tmac.%s", argv[i] + 2);
  49                         in_queue(path);
  50                 }
  51         }
  52         if (i == argc)
  53                 in_queue(NULL); /* reading from standard input */
  54         for (; i < argc; i++)
  55                 in_queue(!strcmp("-", argv[i]) ? NULL : argv[i]);
  56         str_set(REG('.', 'P'), TROFFROOT);
  57         compile();
  58         env_free();
  59         dev_close();
  60         return 0;
  61 }