kc3-lang/libxkbcommon/src/keysym.c

Branch : - branch - android master - tag -

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  Commit

• Author : Kristian Høgsberg
  Date : 2010-06-28 06:50:12
  Hash : 47d3b396
  Message : Drop CARD32 and Opaque types

• src/keysym.c

• /*
  Copyright 1985, 1987, 1990, 1998  The Open Group
  Copyright 2008  Dan Nicholson
  
  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 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 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.
  
  Except as contained in this notice, the names of the authors or their
  institutions shall not be used in advertising or otherwise to promote the
  sale, use or other dealings in this Software without prior written
  authorization from the authors.
  */
  
  #ifdef HAVE_CONFIG_H
  #include <config.h>
  #endif
  #include <X11/X.h>
  #include <X11/keysymdef.h>
  #include "xkbmisc.h"
  #include "X11/extensions/XKBcommon.h"
  #include <stdlib.h>
  #include <string.h>
  
  #include "ks_tables.h"
  
  char *
  XkbcKeysymToString(uint32_t ks)
  {
      int i, n, h, idx;
      const unsigned char *entry;
      static char ret[11];
      unsigned char val1, val2, val3, val4;
  
      if ((ks & ((unsigned long) ~0x1fffffff)) != 0)
          return NULL;
  
      /* Not listed in keysymdef.h for hysterical raisins. */
      if (ks == NoSymbol) {
          sprintf(ret, "NoSymbol");
          return ret;
      }
  
      /* Try to find it in our hash table. */
      if (ks <= 0x1fffffff) {
          val1 = ks >> 24;
          val2 = (ks >> 16) & 0xff;
          val3 = (ks >> 8) & 0xff;
          val4 = ks & 0xff;
          i = ks % VTABLESIZE;
          h = i + 1;
          n = VMAXHASH;
  
          while ((idx = hashKeysym[i])) {
              entry = &_XkeyTable[idx];
  
              if ((entry[0] == val1) && (entry[1] == val2) &&
                  (entry[2] == val3) && (entry[3] == val4))
                  return ((char *)entry + 4);
  
              if (!--n)
                  break;
  
              i += h;
              if (i >= VTABLESIZE)
                  i -= VTABLESIZE;
          }
      }
  
      /* Unnamed Unicode codepoint. */
      if (ks >= 0x01000100 && ks <= 0x0110ffff) {
          sprintf(ret, "U%lx", ks & 0xffffffUL);
          return ret;
      }
  
      /* Unnamed, non-Unicode, symbol (shouldn't generally happen). */
      sprintf(ret, "0x%08lx", ks);
      return ret;
  }
  
  uint32_t
  XkbcStringToKeysym(const char *s)
  {
      int i, n, h, c, idx;
      unsigned long sig = 0;
      const char *p = s;
      const unsigned char *entry;
      unsigned char sig1, sig2;
      uint32_t val;
  
      while ((c = *p++))
          sig = (sig << 1) + c;
  
      i = sig % KTABLESIZE;
      h = i + 1;
      sig1 = (sig >> 8) & 0xff;
      sig2 = sig & 0xff;
      n = KMAXHASH;
  
      while ((idx = hashString[i])) {
          entry = &_XkeyTable[idx];
  
          if ((entry[0] == sig1) && (entry[1] == sig2) &&
              !strcmp(s, (char *)entry + 6))
          {
              val = (entry[2] << 24) | (entry[3] << 16) |
                    (entry[4] << 8)  | entry[5];
              if (!val)
                  val = XK_VoidSymbol;
              return val;
          }
  
          if (!--n)
              break;
  
          i += h;
          if (i >= KTABLESIZE)
              i -= KTABLESIZE;
      }
  
      if (*s == 'U') {
          val = strtoul(&s[1], NULL, 16);
  
          if (val < 0x20 || (val > 0x7e && val < 0xa0))
              return NoSymbol;
          if (val < 0x100)
              return val;
          if (val > 0x10ffff)
              return NoSymbol;
          return val | 0x01000000;
      }
      else if (s[0] == '0' && s[1] == 'x') {
          return strtoul(&s[2], NULL, 16);
      }
  
      return NoSymbol;
  }