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 34 static char * 35 locale_to_utf8 (char *s) 36 { 37 char *t; 38 GError *error = NULL; 39 40 t = g_locale_to_utf8 (s, -1, NULL, NULL, &error); 41 if (!t) 42 { 43 fail (true, "Failed converting text to UTF-8"); 44 } 45 46 return t; 47 } 48 49 static hb_bool_t 50 message_func (hb_buffer_t *buffer, 51 hb_font_t *font, 52 const char *message, 53 void *user_data) 54 { 55 fprintf (stderr, "HB: %s\n", message); 56 char buf[4096]; 57 hb_buffer_serialize_glyphs (buffer, 0, hb_buffer_get_length (buffer), 58 buf, sizeof (buf), NULL, 59 font, 60 HB_BUFFER_SERIALIZE_FORMAT_TEXT, 61 HB_BUFFER_SERIALIZE_FLAG_DEFAULT); 62 printf ("HB: buffer [%s]\n", buf); 63 return true; 64 } 65 66 template <typename consumer_t, int default_font_size, int subpixel_bits> 67 struct main_font_text_t 68 { 69 main_font_text_t (void) 70 : options ("[FONT-FILE] [TEXT]"), 71 font_opts (&options, default_font_size, subpixel_bits), 72 input (&options), 73 consumer (&options) {} 74 75 int 76 main (int argc, char **argv) 77 { 78 options.parse (&argc, &argv); 79 80 argc--, argv++; 81 if (argc && !font_opts.font_file) font_opts.font_file = locale_to_utf8 (argv[0]), argc--, argv++; 82 if (argc && !input.text && !input.text_file) input.text = locale_to_utf8 (argv[0]), argc--, argv++; 83 if (argc) 84 fail (true, "Too many arguments on the command line"); 85 if (!font_opts.font_file) 86 options.usage (); 87 if (!input.text && !input.text_file) 88 input.text_file = g_strdup ("-"); 89 90 consumer.init (&font_opts); 91 92 hb_buffer_t *buffer = hb_buffer_create (); 93 if (debug) 94 hb_buffer_set_message_func (buffer, message_func, NULL, NULL); 95 unsigned int text_len; 96 const char *text; 97 while ((text = input.get_line (&text_len))) 98 consumer.consume_line (buffer, text, text_len, input.text_before, input.text_after); 99 hb_buffer_destroy (buffer); 100 101 consumer.finish (&font_opts); 102 103 return consumer.failed ? 1 : 0; 104 } 105 106 protected: 107 option_parser_t options; 108 font_options_t font_opts; 109 text_options_t input; 110 consumer_t consumer; 111 }; 112 113 #endif 114 115
