kc3-lang/libxkbcommon/tools/print-compiled-keymap.c

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• Hash : 878cc7a5
  Author :
  Date : 2020-06-28T09:50:47
  

  tools: don't depend on src/utils.h The idea is to make the tools/demos as standalone as possible so that they may serve as examples as well. Signed-off-by: Ran Benita <ran@unusedvar.com>

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• tools/print-compiled-keymap.c

• /*
   * Copyright © 2012 Ran Benita <ran234@gmail.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 <stdbool.h>
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #include <unistd.h>
  
  #include "xkbcommon/xkbcommon.h"
  
  int
  main(int argc, char *argv[])
  {
      int ret = EXIT_FAILURE;
      int opt;
      struct xkb_context *ctx = NULL;
      struct xkb_keymap *keymap = NULL;
      const char *keymap_path = NULL;
      FILE *file = NULL;
      char *dump;
  
      while ((opt = getopt(argc, argv, "h")) != -1) {
          switch (opt) {
          case 'h':
          case '?':
              fprintf(stderr, "Usage: %s <path to keymap file>\n", argv[0]);
              exit(EXIT_FAILURE);
          }
      }
  
      if (optind >= argc) {
          fprintf(stderr, "Error: missing path to keymap file\n");
          exit(EXIT_FAILURE);
      }
  
      keymap_path = argv[optind];
  
      ctx = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
      if (!ctx) {
          fprintf(stderr, "Couldn't create xkb context\n");
          goto out;
      }
  
      if (strcmp(keymap_path, "-") == 0) {
          FILE *tmp;
  
          tmp = tmpfile();
          if (!tmp) {
              fprintf(stderr, "Failed to create tmpfile\n");
              goto out;
          }
  
          while (true) {
              char buf[4096];
              size_t len;
  
              len = fread(buf, 1, sizeof(buf), stdin);
              if (ferror(stdin)) {
                  fprintf(stderr, "Failed to read from stdin\n");
                  goto out;
              }
              if (len > 0) {
                  size_t wlen = fwrite(buf, 1, len, tmp);
                  if (wlen != len) {
                      fprintf(stderr, "Failed to write to tmpfile\n");
                      goto out;
                  }
              }
              if (feof(stdin))
                  break;
          }
          fseek(tmp, 0, SEEK_SET);
          file = tmp;
      } else {
          file = fopen(keymap_path, "rb");
          if (!file) {
              fprintf(stderr, "Failed to open path: %s\n", keymap_path);
              goto out;
          }
      }
  
      keymap = xkb_keymap_new_from_file(ctx, file,
                                        XKB_KEYMAP_FORMAT_TEXT_V1, 0);
      if (!keymap) {
          fprintf(stderr, "Couldn't create xkb keymap\n");
          goto out;
      }
  
      dump = xkb_keymap_get_as_string(keymap, XKB_KEYMAP_FORMAT_TEXT_V1);
      if (!dump) {
          fprintf(stderr, "Couldn't get the keymap string\n");
          goto out;
      }
  
      fputs(dump, stdout);
  
      ret = EXIT_SUCCESS;
      free(dump);
  out:
      if (file)
          fclose(file);
      xkb_keymap_unref(keymap);
      xkb_context_unref(ctx);
      return ret;
  }
  

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