src/lib/ecore_input/ecore_input_compose.c

   1 #ifdef HAVE_CONFIG_H
   2 # include <config.h>
   3 #endif
   4
   5 #include <stdio.h>
   6 #include <string.h>
   7
   8 #include "Ecore.h"
   9 #include "ecore_private.h"
  10
  11 #include "Ecore_Input.h"
  12 #include "ecore_input_private.h"
  13
  14 // some info on a big big big compose table
  15 // http://cgit.freedesktop.org/xorg/lib/libX11/plain/nls/en_US.UTF-8/Compose.pre
  16 // isolate compose tree into its own file - hand crafted into static const c
  17 #include "ecore_input_compose.h"
  18
  19 EAPI Ecore_Compose_State
  20 ecore_compose_get(const Eina_List *seq, char **seqstr_ret)
  21 {
  22    Comp *c, *cend;
  23    Eina_List *l;
  24    const char *s;
  25    int i = 0;
  26
  27    if (!seq) return ECORE_COMPOSE_NONE;
  28    l = (Eina_List *)seq;
  29    s = l->data;
  30    cend = (Comp *)comp + (sizeof(comp) / sizeof(comp[0]));
  31    for (c = (Comp *)comp; c->s && s;)
  32      {
  33         // doesn't match -> jump to next level entry
  34         if (!(!strcmp(s, c->s)))
  35           {
  36              c += c->jump + 1;
  37              if (c >= cend)
  38                {
  39                   return ECORE_COMPOSE_NONE;
  40                }
  41           }
  42         else
  43           {
  44              cend = c + c->jump;
  45              // advance to next sequence member
  46              l = l->next;
  47              i++;
  48              if (l) s = l->data;
  49              else s = NULL;
  50              c++;
  51              // if advanced item jump is an endpoint - it's the string we want
  52              if (c->jump == 0)
  53                {
  54                   if (seqstr_ret) *seqstr_ret = strdup(c->s);
  55                   return ECORE_COMPOSE_DONE;
  56                }
  57           }
  58      }
  59    if (i == 0) return ECORE_COMPOSE_NONE;
  60    return ECORE_COMPOSE_MIDDLE;
  61 }