kc3-lang/libxkbcommon/test/how-to-type.c

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• Hash : 8a1709a4
  Author :
  Date : 2020-03-21T12:56:13
  

  test/how-to-type: some code fixes/improvements Signed-off-by: Ran Benita <ran@unusedvar.com>

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• test/how-to-type.c

• /*
   * Copyright © 2020 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 <stdlib.h>
  #include <unistd.h>
  #include <errno.h>
  
  #include <xkbcommon/xkbcommon.h>
  
  #define ARRAY_SIZE(arr) ((sizeof(arr) / sizeof(*(arr))))
  
  static void
  usage(const char *argv0)
  {
      fprintf(stderr, "Usage: %s [-r <rules>] [-m <model>] "
              "[-l <layout>] [-v <variant>] [-o <options>] <unicode codepoint>\n",
              argv0);
      fprintf(stderr, "Pipe into `column -ts $'\\t'` for nicely aligned output.\n");
      exit(2);
  }
  
  int
  main(int argc, char *argv[])
  {
      int opt;
      const char *rules = NULL;
      const char *model = NULL;
      const char *layout_ = NULL;
      const char *variant = NULL;
      const char *options = NULL;
      int exit = EXIT_FAILURE;
      struct xkb_context *ctx = NULL;
      char *endp;
      long val;
      uint32_t codepoint;
      xkb_keysym_t keysym;
      int ret;
      char name[200];
      struct xkb_keymap *keymap = NULL;
      xkb_keycode_t min_keycode, max_keycode;
      xkb_mod_index_t num_mods;
  
      while ((opt = getopt(argc, argv, "r:m:l:v:o:")) != -1) {
          switch (opt) {
          case 'r':
              rules = optarg;
              break;
          case 'm':
              model = optarg;
              break;
          case 'l':
              layout_ = optarg;
              break;
          case 'v':
              variant = optarg;
              break;
          case 'o':
              options = optarg;
              break;
          default:
              usage(argv[0]);
          }
      }
      if (argc - optind != 1) {
          usage(argv[0]);
      }
  
      errno = 0;
      val = strtol(argv[optind], &endp, 0);
      if (errno != 0 || endp == argv[optind] || val < 0 || val > 0x10FFFF) {
          usage(argv[0]);
      }
      codepoint = (uint32_t) val;
  
      keysym = xkb_utf32_to_keysym(codepoint);
      if (keysym == XKB_KEY_NoSymbol) {
          fprintf(stderr, "Failed to convert codepoint to keysym\n");
          goto err;
      }
  
      ret = xkb_keysym_get_name(keysym, name, sizeof(name));
      if (ret < 0 || (size_t) ret >= sizeof(name)) {
          fprintf(stderr, "Failed to get name of keysym\n");
          goto err;
      }
  
      ctx = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
      if (!ctx) {
          fprintf(stderr, "Failed to create XKB context\n");
          goto err;
      }
  
      struct xkb_rule_names names = {
          .rules = rules,
          .model = model,
          .layout = layout_,
          .variant = variant,
          .options = options,
      };
      keymap = xkb_keymap_new_from_names(ctx, &names,
                                         XKB_KEYMAP_COMPILE_NO_FLAGS);
      if (!keymap) {
          fprintf(stderr, "Failed to create XKB keymap\n");
          goto err;
      }
  
      printf("keysym: %s (%#x)\n", name, keysym);
      printf("KEYCODE\tKEY NAME\tLAYOUT#\tLAYOUT NAME\tLEVEL#\tMODIFIERS\n");
  
      min_keycode = xkb_keymap_min_keycode(keymap);
      max_keycode = xkb_keymap_max_keycode(keymap);
      num_mods = xkb_keymap_num_mods(keymap);
      for (xkb_keycode_t keycode = min_keycode; keycode <= max_keycode; keycode++) {
          const char *key_name;
          xkb_layout_index_t num_layouts;
  
          key_name = xkb_keymap_key_get_name(keymap, keycode);
          if (!key_name) {
              continue;
          }
  
          num_layouts = xkb_keymap_num_layouts_for_key(keymap, keycode);
          for (xkb_layout_index_t layout = 0; layout < num_layouts; layout++) {
              const char *layout_name;
              xkb_level_index_t num_levels;
  
              layout_name = xkb_keymap_layout_get_name(keymap, layout);
              if (!layout_name) {
                  layout_name = "?";
              }
  
              num_levels = xkb_keymap_num_levels_for_key(keymap, keycode, layout);
              for (xkb_level_index_t level = 0; level < num_levels; level++) {
                  int num_syms;
                  const xkb_keysym_t *syms;
                  size_t num_masks;
                  xkb_mod_mask_t masks[100];
  
                  num_syms = xkb_keymap_key_get_syms_by_level(
                      keymap, keycode, layout, level, &syms
                  );
                  if (num_syms != 1) {
                      continue;
                  }
                  if (syms[0] != keysym) {
                      continue;
                  }
  
                  num_masks = xkb_keymap_key_get_mods_for_level(
                      keymap, keycode, layout, level, masks, ARRAY_SIZE(masks)
                  );
                  for (size_t i = 0; i < num_masks; i++) {
                      xkb_mod_mask_t mask = masks[i];
  
                      printf("%u\t%s\t%u\t%s\t%u\t[ ",
                             keycode, key_name, layout + 1, layout_name, level + 1);
                      for (xkb_mod_index_t mod = 0; mod < num_mods; mod++) {
                          if ((mask & (1 << mod)) == 0) {
                              continue;
                          }
                          printf("%s ", xkb_keymap_mod_get_name(keymap, mod));
                      }
                      printf("]\n");
                  }
              }
          }
      }
  
      exit = EXIT_SUCCESS;
  err:
      xkb_keymap_unref(keymap);
      xkb_context_unref(ctx);
      return exit;
  }
  

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