kc3-lang/libxkbcommon/tools/compose.c

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• Hash : b6aadd57
  Author :
  Date : 2021-05-08T21:30:52
  

  tools: add compose tool for Compose debugging Not very useful so not exposed in xkbcli. Signed-off-by: Ran Benita <ran@unusedvar.com>

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• tools/compose.c

• /*
   * Copyright © 2021 Ran Benita <ran@unusedvar.com>
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice (including the next
   * paragraph) shall be included in all copies or substantial portions of the
   * Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
   * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
   * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
   * DEALINGS IN THE SOFTWARE.
   */
  
  #include "config.h"
  
  #include <getopt.h>
  #include <locale.h>
  #include <stdio.h>
  #include <stdlib.h>
  
  #include "xkbcommon/xkbcommon.h"
  #include "xkbcommon/xkbcommon-compose.h"
  
  static void
  usage(FILE *fp, char *progname)
  {
      fprintf(fp,
              "Usage: %s [--locale LOCALE | --locale-from-env | --locale-from-setlocale]\n",
              progname);
      fprintf(fp,
              "   --locale - specify the locale directly\n"
              "   --locale-from-env - get the locale from the LC_ALL/LC_CTYPE/LANG environment variables (falling back to C)\n"
              "   --locale-from-setlocale - get the locale using setlocale(3)\n"
      );
  }
  
  int
  main(int argc, char *argv[])
  {
      int ret = EXIT_FAILURE;
      struct xkb_context *ctx = NULL;
      struct xkb_compose_table *compose_table = NULL;
      const char *locale = NULL;
      enum options {
          OPT_LOCALE,
          OPT_LOCALE_FROM_ENV,
          OPT_LOCALE_FROM_SETLOCALE,
      };
      static struct option opts[] = {
          {"locale",                required_argument,      0, OPT_LOCALE},
          {"locale-from-env",       no_argument,            0, OPT_LOCALE_FROM_ENV},
          {"locale-from-setlocale", no_argument,            0, OPT_LOCALE_FROM_SETLOCALE},
          {0, 0, 0, 0},
      };
  
      setlocale(LC_ALL, "");
  
      while (1) {
          int opt;
          int option_index = 0;
  
          opt = getopt_long(argc, argv, "h", opts, &option_index);
          if (opt == -1)
              break;
  
          switch (opt) {
          case OPT_LOCALE:
              locale = optarg;
              break;
          case OPT_LOCALE_FROM_ENV:
              locale = getenv("LC_ALL");
              if (!locale)
                  locale = getenv("LC_CTYPE");
              if (!locale)
                  locale = getenv("LANG");
              if (!locale)
                  locale = "C";
              break;
          case OPT_LOCALE_FROM_SETLOCALE:
              locale = setlocale(LC_CTYPE, NULL);
              break;
          case 'h':
              usage(stdout, argv[0]);
              return EXIT_SUCCESS;
          case '?':
              usage(stderr, argv[0]);
              return EXIT_INVALID_USAGE;
          }
      }
      if (locale == NULL) {
          usage(stderr, argv[0]);
          return EXIT_INVALID_USAGE;
      }
  
      ctx = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
      if (!ctx) {
          fprintf(stderr, "Couldn't create xkb context\n");
          goto out;
      }
  
      compose_table =
          xkb_compose_table_new_from_locale(ctx, locale,
                                            XKB_COMPOSE_COMPILE_NO_FLAGS);
      if (!compose_table) {
          fprintf(stderr, "Couldn't create compose from locale\n");
          goto out;
      }
  
      printf("Compiled successfully from locale %s\n", locale);
  
  out:
      xkb_compose_table_unref(compose_table);
      xkb_context_unref(ctx);
  
      return ret;
  }
  

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