1/*
2 * Copyright © 2011,2012  Google, Inc.
3 *
4 *  This is part of HarfBuzz, a text shaping library.
5 *
6 * Permission is hereby granted, without written agreement and without
7 * license or royalty fees, to use, copy, modify, and distribute this
8 * software and its documentation for any purpose, provided that the
9 * above copyright notice and the following two paragraphs appear in
10 * all copies of this software.
11 *
12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
16 * DAMAGE.
17 *
18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
20 * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
23 *
24 * Google Author(s): Behdad Esfahbod
25 */
26
27#include "options.hh"
28
29#ifndef HB_MAIN_FONT_TEXT_HH
30#define HB_MAIN_FONT_TEXT_HH
31
32/* main() body for utilities taking font and processing text.*/
33
34template <typename consumer_t>
35struct main_font_text_t
36{
37  main_font_text_t (void)
38		  : options ("[FONT-FILE] [TEXT]"),
39		    font_opts (&options),
40		    input (&options),
41		    consumer (&options) {}
42
43  int
44  main (int argc, char **argv)
45  {
46    options.parse (&argc, &argv);
47
48    argc--, argv++;
49    if (argc && !font_opts.font_file) font_opts.font_file = argv[0], argc--, argv++;
50    if (argc && !input.text && !input.text_file) input.text = argv[0], argc--, argv++;
51    if (argc)
52      fail (true, "Too many arguments on the command line");
53    if (!font_opts.font_file)
54      options.usage ();
55    if (!input.text && !input.text_file)
56      input.text_file = "-";
57
58    consumer.init (&font_opts);
59
60    hb_buffer_t *buffer = hb_buffer_create ();
61    unsigned int text_len;
62    const char *text;
63    while ((text = input.get_line (&text_len)))
64      consumer.consume_line (buffer, text, text_len, input.text_before, input.text_after);
65    hb_buffer_destroy (buffer);
66
67    consumer.finish (&font_opts);
68
69    return consumer.failed ? 1 : 0;
70  }
71
72  protected:
73  option_parser_t options;
74  font_options_t font_opts;
75  text_options_t input;
76  consumer_t consumer;
77};
78
79#endif
80
81