HarfBuzz text shaping engine
http://harfbuzz.github.io/
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98 lines
2.6 KiB
98 lines
2.6 KiB
/* |
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* Copyright © 2011,2012 Google, Inc. |
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* |
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* This is part of HarfBuzz, a text shaping library. |
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* |
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* Permission is hereby granted, without written agreement and without |
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* license or royalty fees, to use, copy, modify, and distribute this |
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* software and its documentation for any purpose, provided that the |
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* above copyright notice and the following two paragraphs appear in |
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* all copies of this software. |
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* |
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
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* DAMAGE. |
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* |
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
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* |
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* Google Author(s): Behdad Esfahbod |
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*/ |
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#ifndef HB_MAIN_FONT_TEXT_HH |
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#define HB_MAIN_FONT_TEXT_HH |
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#include "options.hh" |
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/* main() body for utilities taking font and processing text.*/ |
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template <typename consumer_t, typename font_options_t, typename text_options_t> |
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struct main_font_text_t : option_parser_t, font_options_t, text_options_t, consumer_t |
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{ |
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int operator () (int argc, char **argv) |
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{ |
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add_options (); |
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parse (&argc, &argv); |
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this->init (this); |
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while (this->consume_line (*this)) |
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; |
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this->finish (this); |
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return this->failed ? 1 : 0; |
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} |
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protected: |
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void add_options () |
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{ |
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font_options_t::add_options (this); |
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text_options_t::add_options (this); |
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consumer_t::add_options (this); |
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GOptionEntry entries[] = |
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{ |
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{G_OPTION_REMAINING, 0, G_OPTION_FLAG_IN_MAIN, |
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G_OPTION_ARG_CALLBACK, (gpointer) &collect_rest, nullptr, "[FONT-FILE] [TEXT]"}, |
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{nullptr} |
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}; |
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add_main_group (entries, this); |
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option_parser_t::add_options (); |
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} |
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private: |
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static gboolean |
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collect_rest (const char *name G_GNUC_UNUSED, |
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const char *arg, |
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gpointer data, |
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GError **error) |
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{ |
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main_font_text_t *thiz = (main_font_text_t *) data; |
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if (!thiz->font_file) |
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{ |
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thiz->font_file = g_strdup (arg); |
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return true; |
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} |
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if (!thiz->text && !thiz->text_file) |
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{ |
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thiz->text = g_strdup (arg); |
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return true; |
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} |
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g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_FAILED, |
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"Too many arguments on the command line"); |
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return false; |
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} |
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}; |
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#endif
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