99 lines
2.6 KiB
C++
99 lines
2.6 KiB
C++
/*
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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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