HarfBuzz text shaping engine
http://harfbuzz.github.io/
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117 lines
3.3 KiB
117 lines
3.3 KiB
/* |
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* Copyright © 2011 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 OUTPUT_OPTIONS_HH |
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#define OUTPUT_OPTIONS_HH |
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#include "options.hh" |
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template <bool default_stdout = true> |
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struct output_options_t |
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{ |
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~output_options_t () |
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{ |
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g_free (output_file); |
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g_free (output_format); |
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if (out_fp && out_fp != stdout) |
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fclose (out_fp); |
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} |
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void add_options (option_parser_t *parser, |
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const char **supported_formats = nullptr) |
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{ |
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const char *text = nullptr; |
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if (supported_formats) |
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{ |
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char *items = g_strjoinv ("/", const_cast<char **> (supported_formats)); |
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text = g_strdup_printf ("Set output format\n\n Supported output formats are: %s", items); |
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g_free (items); |
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parser->free_later ((char *) text); |
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} |
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GOptionEntry entries[] = |
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{ |
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{"output-file", 'o', 0, G_OPTION_ARG_STRING, &this->output_file, "Set output file-name (default: stdout)","filename"}, |
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{"output-format", 'O', supported_formats ? 0 : G_OPTION_FLAG_HIDDEN, |
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G_OPTION_ARG_STRING, &this->output_format, text, "format"}, |
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{nullptr} |
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}; |
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parser->add_group (entries, |
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"output", |
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"Output destination & format options:", |
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"Options for the destination & form of the output", |
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this); |
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} |
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void post_parse (GError **error) |
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{ |
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if (output_format) |
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explicit_output_format = true; |
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if (output_file && !output_format) |
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{ |
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output_format = strrchr (output_file, '.'); |
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if (output_format) |
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{ |
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output_format++; /* skip the dot */ |
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output_format = g_strdup (output_format); |
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} |
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} |
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if (output_file && 0 != strcmp (output_file, "-")) |
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out_fp = fopen (output_file, "wb"); |
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else |
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{ |
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if (!default_stdout && !output_file) |
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{ |
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g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_FAILED, |
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"No output file was specified"); |
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return; |
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} |
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#if defined(_WIN32) || defined(__CYGWIN__) |
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setmode (fileno (stdout), O_BINARY); |
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#endif |
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out_fp = stdout; |
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} |
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if (!out_fp) |
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{ |
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g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_FAILED, |
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"Cannot open output file `%s': %s", |
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g_filename_display_name (output_file), strerror (errno)); |
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return; |
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} |
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} |
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char *output_file = nullptr; |
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char *output_format = nullptr; |
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bool explicit_output_format = false; |
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FILE *out_fp = nullptr; |
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}; |
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#endif
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