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/* Color and styling handling.
Copyright (C) 2006, 2019 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2006.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#ifndef _COLOR_H
#define _COLOR_H
#include <stdbool.h>
#ifdef __cplusplus
extern "C" {
#endif
/* Whether to output a test page. */
extern LIBTEXTSTYLE_DLL_VARIABLE bool color_test_mode;
/* Color option. */
enum color_option { color_no, color_tty, color_yes, color_html };
extern LIBTEXTSTYLE_DLL_VARIABLE enum color_option color_mode;
/* Style to use when coloring. */
extern LIBTEXTSTYLE_DLL_VARIABLE const char *style_file_name;
/* --color argument handling. Return an error indicator. */
extern bool handle_color_option (const char *option);
/* --style argument handling. */
extern void handle_style_option (const char *option);
/* Print a color test page. */
extern void print_color_test (void);
/* Assign a default value to style_file_name if necessary.
STYLE_FILE_ENVVAR is an environment variable that, when set to a non-empty
value, specifies the style file to use. This environment variable is meant
to be set by the user.
STYLESDIR_ENVVAR is an environment variable that, when set to a non-empty
value, specifies the directory with the style files, or NULL. This is
necessary for running the testsuite before "make install".
STYLESDIR_AFTER_INSTALL is the directory with the style files after
"make install".
DEFAULT_STYLE_FILE is the file name of the default style file, relative to
STYLESDIR. */
extern void style_file_prepare (const char *style_file_envvar,
const char *stylesdir_envvar,
const char *stylesdir_after_install,
const char *default_style_file);
#ifdef __cplusplus
}
#endif
#endif /* _COLOR_H */