1  /* Color and styling handling.
       2     Copyright (C) 2006, 2019 Free Software Foundation, Inc.
       3     Written by Bruno Haible <bruno@clisp.org>, 2006.
       4  
       5     This program is free software: you can redistribute it and/or modify
       6     it under the terms of the GNU General Public License as published by
       7     the Free Software Foundation; either version 3 of the License, or
       8     (at your option) any later version.
       9  
      10     This program is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      13     GNU General Public License for more details.
      14  
      15     You should have received a copy of the GNU General Public License
      16     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
      17  
      18  #ifndef _COLOR_H
      19  #define _COLOR_H
      20  
      21  #include <stdbool.h>
      22  
      23  
      24  #ifdef __cplusplus
      25  extern "C" {
      26  #endif
      27  
      28  
      29  /* Whether to output a test page.  */
      30  extern LIBTEXTSTYLE_DLL_VARIABLE bool color_test_mode;
      31  
      32  /* Color option.  */
      33  enum color_option { color_no, color_tty, color_yes, color_html };
      34  extern LIBTEXTSTYLE_DLL_VARIABLE enum color_option color_mode;
      35  
      36  /* Style to use when coloring.  */
      37  extern LIBTEXTSTYLE_DLL_VARIABLE const char *style_file_name;
      38  
      39  /* --color argument handling.  Return an error indicator.  */
      40  extern bool handle_color_option (const char *option);
      41  
      42  /* --style argument handling.  */
      43  extern void handle_style_option (const char *option);
      44  
      45  /* Print a color test page.  */
      46  extern void print_color_test (void);
      47  
      48  /* Assign a default value to style_file_name if necessary.
      49     STYLE_FILE_ENVVAR is an environment variable that, when set to a non-empty
      50     value, specifies the style file to use.  This environment variable is meant
      51     to be set by the user.
      52     STYLESDIR_ENVVAR is an environment variable that, when set to a non-empty
      53     value, specifies the directory with the style files, or NULL.  This is
      54     necessary for running the testsuite before "make install".
      55     STYLESDIR_AFTER_INSTALL is the directory with the style files after
      56     "make install".
      57     DEFAULT_STYLE_FILE is the file name of the default style file, relative to
      58     STYLESDIR.  */
      59  extern void style_file_prepare (const char *style_file_envvar,
      60                                  const char *stylesdir_envvar,
      61                                  const char *stylesdir_after_install,
      62                                  const char *default_style_file);
      63  
      64  
      65  #ifdef __cplusplus
      66  }
      67  #endif
      68  
      69  
      70  #endif /* _COLOR_H */