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 #ifndef HB_MAIN_FONT_TEXT_HH 28 #define HB_MAIN_FONT_TEXT_HH 29 30 #include "hb-private.hh" 31 #include "options.hh" 32 33 /* main() body for utilities taking font and processing text.*/ 34 35 static char * 36 locale_to_utf8 (char *s) 37 { 38 char *t; 39 GError *error = nullptr; 40 41 t = g_locale_to_utf8 (s, -1, nullptr, nullptr, &error); 42 if (!t) 43 { 44 fail (true, "Failed converting text to UTF-8"); 45 } 46 47 return t; 48 } 49 50 template <typename consumer_t, int default_font_size, int subpixel_bits> 51 struct main_font_text_t 52 { 53 main_font_text_t (void) 54 : options ("[FONT-FILE] [TEXT]"), 55 font_opts (&options, default_font_size, subpixel_bits), 56 input (&options), 57 consumer (&options) {} 58 59 int 60 main (int argc, char **argv) 61 { 62 options.parse (&argc, &argv); 63 64 argc--, argv++; 65 if (argc && !font_opts.font_file) font_opts.font_file = locale_to_utf8 (argv[0]), argc--, argv++; 66 if (argc && !input.text && !input.text_file) input.text = locale_to_utf8 (argv[0]), argc--, argv++; 67 if (argc) 68 fail (true, "Too many arguments on the command line"); 69 if (!font_opts.font_file) 70 options.usage (); 71 if (!input.text && !input.text_file) 72 input.text_file = g_strdup ("-"); 73 74 hb_buffer_t *buffer = hb_buffer_create (); 75 consumer.init (buffer, &font_opts); 76 hb_buffer_destroy (buffer); 77 78 unsigned int text_len; 79 const char *text; 80 while ((text = input.get_line (&text_len))) 81 consumer.consume_line (text, text_len, input.text_before, input.text_after); 82 83 consumer.finish (&font_opts); 84 85 return consumer.failed ? 1 : 0; 86 } 87 88 protected: 89 option_parser_t options; 90 font_options_t font_opts; 91 text_options_t input; 92 consumer_t consumer; 93 }; 94 95 #endif 96 97
