ctxt.c

   1 /*
   2  * ctxt - a simple and fast plain text formatter
   3  *
   4  * Copyright (C) 2009-2012 Ali Gholami Rudi
   5  *
   6  * This program is released under the modified BSD license.
   7  */
   8 #include <stdlib.h>
   9 #include <string.h>
  10 #include <stdio.h>
  11 #include <unistd.h>
  12 #include "ctxt.h"
  13
  14 extern struct fmt_ops troff_ops;
  15 extern struct fmt_ops latex_ops;
  16 extern struct fmt_ops html_ops;
  17
  18 static struct fmt_ops *get_ops(char *name)
  19 {
  20         if (!strcmp(name, "troff"))
  21                 return &troff_ops;
  22         if (!strcmp(name, "latex"))
  23                 return &latex_ops;
  24         if (!strcmp(name, "html"))
  25                 return &html_ops;
  26         return NULL;
  27 }
  28
  29 void die(char *msg)
  30 {
  31         write(2, msg, strlen(msg));
  32         exit(1);
  33 }
  34
  35 void *xmalloc(int size)
  36 {
  37         void *value = malloc(size);
  38         if (!value)
  39                 die("Out of memory!\n");
  40         return value;
  41 }
  42
  43 static char *usage =
  44         "usage: ctxt [-m mode] [-e esc] <plaintext >formatted\n\n"
  45         "  mode: latex, html or troff (default: troff)\n";
  46
  47 int main(int argc, char **argv)
  48 {
  49         struct txt *txt;
  50         struct doc *doc;
  51         char *mode = "troff";
  52         struct fmt_ops *ops;
  53         int esc = '\0';
  54         int i;
  55         for (i = 1; i < argc; i++) {
  56                 if (argv[i][0] == '-' && argv[i][1] == 'm') {
  57                         mode = argv[i][2] ? argv[i] + 2 : argv[++i];
  58                         continue;
  59                 }
  60                 if (argv[i][0] == '-' && argv[i][1] == 'e') {
  61                         esc = argv[i][2] ? argv[i][2] : argv[++i][0];
  62                         continue;
  63                 }
  64                 die(usage);
  65         }
  66         if (!(ops = get_ops(mode)))
  67                 die("unknown output format\n");
  68         txt = txt_alloc(0);
  69         doc = doc_alloc(1);
  70         format(doc, txt, ops, esc);
  71         doc_free(doc);
  72         txt_free(txt);
  73         return 0;
  74 }