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, 35 typename font_options_type, 36 typename text_options_type> 37 struct main_font_text_t : 38 option_parser_t, 39 font_options_type, 40 text_options_type, 41 consumer_t 42 { operator ()main_font_text_t43 int operator () (int argc, char **argv) 44 { 45 add_options (); 46 parse (&argc, &argv); 47 48 this->init (this); 49 50 while (this->consume_line (*this)) 51 ; 52 53 this->finish (this); 54 55 return this->failed ? 1 : 0; 56 } 57 58 protected: 59 add_optionsmain_font_text_t60 void add_options () 61 { 62 font_options_type::add_options (this); 63 text_options_type::add_options (this); 64 consumer_t::add_options (this); 65 66 GOptionEntry entries[] = 67 { 68 {G_OPTION_REMAINING, 0, G_OPTION_FLAG_IN_MAIN, 69 G_OPTION_ARG_CALLBACK, (gpointer) &collect_rest, nullptr, "[FONT-FILE] [TEXT]"}, 70 {nullptr} 71 }; 72 add_main_group (entries, this); 73 option_parser_t::add_options (); 74 } 75 76 private: 77 78 static gboolean collect_restmain_font_text_t79 collect_rest (const char *name G_GNUC_UNUSED, 80 const char *arg, 81 gpointer data, 82 GError **error) 83 { 84 main_font_text_t *thiz = (main_font_text_t *) data; 85 86 if (!thiz->font_file) 87 { 88 thiz->font_file = g_strdup (arg); 89 return true; 90 } 91 92 if (!thiz->text && !thiz->text_file) 93 { 94 thiz->text = g_strdup (arg); 95 return true; 96 } 97 98 g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_FAILED, 99 "Too many arguments on the command line"); 100 return false; 101 } 102 }; 103 104 #endif 105