modules/video_output/xcb/keysym.c

   1 /*
   2  * @file keysym.c
   3  * @brief Code generator for X11 key definitions (X11/keysymdef.h)
   4  */
   5 /*****************************************************************************
   6  * Copyright © 2009 Rémi Denis-Courmont
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License
  10  * as published by the Free Software Foundation; either version 2
  11  * of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  21  ****************************************************************************/
  22
  23 #define _GNU_SOURCE 1
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <inttypes.h>
  27 #include <limits.h>
  28 #include <search.h>
  29 #include <assert.h>
  30
  31 struct keysym
  32 {
  33     char xname[32];
  34     char uname[64];
  35     int32_t xsym;
  36     int32_t usym;
  37 };
  38
  39 static int cmpkey (const void *va, const void *vb)
  40 {
  41     const struct keysym *ka = va, *kb = vb;
  42
  43 #if (INT_MAX < 0x7fffffff)
  44 # error Oups!
  45 #endif
  46     return ka->xsym - kb->xsym;
  47 }
  48
  49 static void printkey (const void *node, const VISIT which, const int depth)
  50 {
  51     if (which != postorder && which != leaf)
  52         return;
  53
  54     const struct keysym *const *psym = node, *sym = *psym;
  55
  56 #if 1
  57     if (sym->xsym <= 0xff) /* Latin-1 */
  58         return;
  59     if (sym->xsym >= 0x1000100 && sym->xsym <= 0x110ffff) /* Unicode */
  60         return;
  61 #endif
  62     printf ("/* XK_%-20s: %s*/\n", sym->xname, sym->uname);
  63     printf ("{ 0x%08"PRIx32", 0x%04"PRIx32" },\n", sym->xsym, sym->usym);
  64
  65     (void) depth;
  66 }
  67
  68 static int parse (FILE *in)
  69 {
  70     void *root = NULL;
  71     char *line = NULL;
  72     size_t buflen = 0;
  73     ssize_t len;
  74
  75     while ((len = getline (&line, &buflen, in)) != -1)
  76     {
  77         struct keysym *sym = malloc (sizeof (*sym));
  78         if (sym == NULL)
  79             abort ();
  80
  81         int val = sscanf (line,
  82                           "#define XK_%31s %"SCNi32" /*%*cU+%"SCNx32" %63[^*]",
  83                           sym->xname, &sym->xsym, &sym->usym, sym->uname);
  84         if (val < 3)
  85         {
  86             free (sym);
  87             continue;
  88         }
  89         if (val < 4)
  90             sym->uname[0] = '\0';
  91
  92         struct keysym **psym = tsearch (sym, &root, cmpkey);
  93         if (psym == NULL)
  94             abort ();
  95         if (*psym != sym)
  96             free (sym); /* Duplicate entry */
  97     }
  98     free (line);
  99
 100     puts ("/* This file is generated automatically. Do not edit! */");
 101     puts ("/* Entries are sorted from the smallest to the largest XK */");
 102     twalk (root, printkey);
 103     tdestroy (root, free);
 104
 105     if (ferror (in))
 106     {
 107         perror ("Read error");
 108         return 1;
 109     }
 110
 111     return 0;
 112 }
 113
 114 int main (void)
 115 {
 116     return -parse (stdin);
 117 }