1  /* Ad-hoc testing program for GNU libtextstyle.
       2     Copyright (C) 2018-2019 Free Software Foundation, Inc.
       3     Written by Bruno Haible <bruno@clisp.org>, 2018.
       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  #include <config.h>
      19  
      20  #include <textstyle.h>
      21  
      22  #include <stdio.h>
      23  #include <stdlib.h>
      24  #include <string.h>
      25  #include <unistd.h>
      26  
      27  int
      28  main (int argc, char *argv[])
      29  {
      30    const char *program_name = argv[0];
      31    int i;
      32  
      33    /* Parse the command-line arguments.  */
      34    for (i = 1; i < argc; i++)
      35      {
      36        const char *arg = argv[i];
      37        if (strncmp (arg, "--color=", 8) == 0)
      38          handle_color_option (arg + 8);
      39        else if (strncmp (arg, "--style=", 8) == 0)
      40          handle_style_option (arg + 8);
      41        else if (arg[0] == '-')
      42          {
      43            fprintf (stderr, "%s: invalid argument: %s\n", program_name, arg);
      44            exit (1);
      45          }
      46        else
      47          /* Handle non-option arguments here.  */
      48          ;
      49      }
      50  
      51    /* Handle the --color=test special argument.  */
      52    if (color_test_mode)
      53      {
      54        print_color_test ();
      55        exit (0);
      56      }
      57  
      58    if (color_mode == color_yes
      59        || (color_mode == color_tty
      60            && isatty (STDOUT_FILENO)
      61            && getenv ("NO_COLOR") == NULL)
      62        || color_mode == color_html)
      63      {
      64        /* If no style file is explicitly specified, use the default in the
      65           source directory.  */
      66        if (style_file_name == NULL)
      67          style_file_name = SRCDIR "hello-default.css";
      68      }
      69    else
      70      /* No styling.  */
      71      style_file_name = NULL;
      72  
      73    /* Create a terminal output stream that uses this style file.  */
      74    styled_ostream_t stream =
      75      (color_mode == color_html
      76       ? html_styled_ostream_create (file_ostream_create (stdout),
      77                                     style_file_name)
      78       : styled_ostream_create (STDOUT_FILENO, "(stdout)", TTYCTL_AUTO,
      79                                style_file_name));
      80  
      81    ostream_write_str (stream, "Hello ");
      82  
      83    /* Associate the entire full name in CSS class 'name'.  */
      84    styled_ostream_begin_use_class (stream, "name");
      85  
      86    ostream_write_str (stream, "Dr. ");
      87    styled_ostream_begin_use_class (stream, "boy-name");
      88    /* Start a hyperlink.  */
      89    styled_ostream_set_hyperlink (stream, "https://en.wikipedia.org/wiki/Linus_Pauling", NULL);
      90    ostream_write_str (stream, "Linus");
      91    styled_ostream_end_use_class (stream, "boy-name");
      92    ostream_write_str (stream, " Pauling");
      93    /* End the current hyperlink.  */
      94    styled_ostream_set_hyperlink (stream, NULL, NULL);
      95  
      96    /* Terminate the name.  */
      97    styled_ostream_end_use_class (stream, "name");
      98  
      99    ostream_write_str (stream, "!\n");
     100  
     101    /* Flush and close the terminal stream.  */
     102    styled_ostream_free (stream);
     103  
     104    return 0;
     105  }