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 "options.hh" 31 32 /* main() body for utilities taking font and processing text.*/ 33 34 template <typename consumer_t, typename font_options_t, typename text_options_t> 35 struct main_font_text_t : option_parser_t, font_options_t, text_options_t, consumer_t 36 { operator ()main_font_text_t37 int operator () (int argc, char **argv) 38 { 39 add_options (); 40 parse (&argc, &argv); 41 42 this->init (this); 43 44 while (this->consume_line (*this)) 45 ; 46 47 this->finish (this); 48 49 return this->failed ? 1 : 0; 50 } 51 52 protected: 53 add_optionsmain_font_text_t54 void add_options () 55 { 56 font_options_t::add_options (this); 57 text_options_t::add_options (this); 58 consumer_t::add_options (this); 59 60 GOptionEntry entries[] = 61 { 62 {G_OPTION_REMAINING, 0, G_OPTION_FLAG_IN_MAIN, 63 G_OPTION_ARG_CALLBACK, (gpointer) &collect_rest, nullptr, "[FONT-FILE] [TEXT]"}, 64 {nullptr} 65 }; 66 add_main_group (entries, this); 67 option_parser_t::add_options (); 68 } 69 70 private: 71 72 static gboolean collect_restmain_font_text_t73 collect_rest (const char *name G_GNUC_UNUSED, 74 const char *arg, 75 gpointer data, 76 GError **error) 77 { 78 main_font_text_t *thiz = (main_font_text_t *) data; 79 80 if (!thiz->font_file) 81 { 82 thiz->font_file = g_strdup (arg); 83 return true; 84 } 85 86 if (!thiz->text && !thiz->text_file) 87 { 88 thiz->text = g_strdup (arg); 89 return true; 90 } 91 92 g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_FAILED, 93 "Too many arguments on the command line"); 94 return false; 95 } 96 }; 97 98 #endif 99