97 lines
2.7 KiB
C++
97 lines
2.7 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 "hb.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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static char *
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locale_to_utf8 (char *s)
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{
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char *t;
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GError *error = nullptr;
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t = g_locale_to_utf8 (s, -1, nullptr, nullptr, &error);
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if (!t)
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{
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fail (true, "Failed converting text to UTF-8");
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}
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return t;
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}
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template <typename consumer_t, int default_font_size, int subpixel_bits>
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struct main_font_text_t
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{
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main_font_text_t ()
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: options ("[FONT-FILE] [TEXT]"),
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font_opts (&options, default_font_size, subpixel_bits),
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input (&options),
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consumer (&options) {}
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int
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main (int argc, char **argv)
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{
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options.parse (&argc, &argv);
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argc--, argv++;
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if (argc && !font_opts.font_file) font_opts.font_file = locale_to_utf8 (argv[0]), argc--, argv++;
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if (argc && !input.text && !input.text_file) input.text = locale_to_utf8 (argv[0]), argc--, argv++;
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if (argc)
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fail (true, "Too many arguments on the command line");
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if (!font_opts.font_file)
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options.usage ();
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if (!input.text && !input.text_file)
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input.text_file = g_strdup ("-");
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hb_buffer_t *buffer = hb_buffer_create ();
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consumer.init (buffer, &font_opts);
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hb_buffer_destroy (buffer);
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unsigned int text_len;
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const char *text;
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while ((text = input.get_line (&text_len)))
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consumer.consume_line (text, text_len, input.text_before, input.text_after);
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consumer.finish (&font_opts);
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return consumer.failed ? 1 : 0;
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}
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protected:
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option_parser_t options;
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font_options_t font_opts;
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text_options_t input;
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consumer_t consumer;
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};
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#endif
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