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