Dogcows Code - chaz/openbox/blob - obcl/process.c

   1 #include "obcl.h"
   2
   3 static void cl_proc_intern_handler(CLNode *node)
   4 {
   5     CL_ASSERT_NODE(node);
   6     g_warning("Unhandled node %s on line %d\n",
   7               CL_ID(node), CL_LINE(node));
   8 }
   9
  10 static CLProcHandler *default_handler(void)
  11 {
  12     static CLProcHandler *ph = 0;
  13     if (!ph)
  14         ph = cl_proc_handler_new_func(cl_proc_intern_handler);
  15     return ph;
  16 }
  17
  18 CLProcHandler *cl_proc_handler_new_func(CLProcFunc f)
  19 {
  20     CLProcHandler *cph = g_new(CLProcHandler,1);
  21     cph->type = CLPROC_FUNC;
  22     cph->u.func = f;
  23     return cph;
  24 }
  25
  26 CLProcHandler *cl_proc_handler_new_proc(CLProc *cp)
  27 {
  28     CLProcHandler *cph = g_new(CLProcHandler,1);
  29     cph->type = CLPROC_PROC;
  30     cph->u.proc = cp;
  31     return cph;
  32 }
  33
  34 CLProc *cl_proc_new(void)
  35 {
  36     CLProc *ret = g_new(CLProc,1);
  37     ret->table = g_hash_table_new(g_str_hash,g_str_equal);
  38     ret->default_h = default_handler();
  39     return ret;
  40 }
  41
  42 void cl_proc_free(CLProc *proc)
  43 {
  44
  45 }
  46
  47 void cl_proc_add_handler(CLProc *proc, gchar *str,
  48                          CLProcHandler *handler)
  49 {
  50     g_assert(proc != NULL);
  51     g_hash_table_replace(proc->table, str, handler);
  52 }
  53
  54 void cl_proc_add_handler_func(CLProc *proc, gchar *str,
  55                               CLProcFunc func)
  56 {
  57     CLProcHandler *ph;
  58
  59     g_assert(proc != NULL);
  60     ph = cl_proc_handler_new_func(func);
  61     cl_proc_add_handler(proc, str, ph);
  62 }
  63
  64 void cl_proc_set_default(CLProc *proc, CLProcHandler *ph)
  65 {
  66     g_assert(proc != NULL);
  67     proc->default_h = ph;
  68 }
  69
  70 void cl_proc_register_keywords(CLProc *proc, ...)
  71 {
  72     va_list args;
  73     g_assert(proc != NULL);
  74
  75     va_start(args,proc);
  76     for (;;) {
  77         gchar *k = va_arg(args, gchar*);
  78         if (k == NULL)
  79             break;
  80         if (g_hash_table_lookup(proc->table, k) != NULL)
  81             g_hash_table_insert(proc->table, k, default_handler());
  82     }
  83     va_end(args);
  84 }
  85
  86 void cl_process(GList *tree, CLProc *proc)
  87 {
  88     GList *lst;
  89     CLProcHandler *handler;
  90
  91     g_assert(proc != NULL);
  92
  93     if (!tree) return;
  94
  95     for (lst = tree; lst != NULL; lst = lst->next) {
  96         CL_ASSERT_NODE(lst->data);
  97         handler = g_hash_table_lookup(proc->table, CL_ID(lst->data));
  98         if (!handler)
  99             handler = default_handler();
 100         if (handler->type == CLPROC_FUNC)
 101             handler->u.func(CL_NODE(lst->data));
 102         else
 103             cl_process(CL_BLOCK(lst->data), handler->u.proc);
 104     }
 105 }