ncurses 5.6 - patch 20080705

[ncurses.git] / ncurses / tinfo / add_tries.c

diff --git a/ncurses/tinfo/add_tries.c b/ncurses/tinfo/add_tries.c
index 601fb663b7b6f7a0d491dd334b7f775352c47061..455d142edc8eefab94eb1122503c848da4a7acaa 100644 (file)
--- a/ncurses/tinfo/add_tries.c
+++ b/ncurses/tinfo/add_tries.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998,2000 Free Software Foundation, Inc.                   *
+ * Copyright (c) 1998-2005,2006 Free Software Foundation, Inc.              *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -27,7 +27,7 @@
  ****************************************************************************/
 
 /****************************************************************************
- *  Author: Thomas E. Dickey <dickey@clark.net> 1998                        *
+ *  Author: Thomas E. Dickey            1998-on                             *
  ****************************************************************************/
 
 /*
@@ -39,20 +39,20 @@
 
 #include <curses.priv.h>
 
-MODULE_ID("$Id: add_tries.c,v 1.2 2000/03/18 22:23:56 tom Exp $")
+MODULE_ID("$Id: add_tries.c,v 1.8 2006/12/30 23:15:26 tom Exp $")
 
 #define SET_TRY(dst,src) if ((dst->ch = *src++) == 128) dst->ch = '\0'
 #define CMP_TRY(a,b) ((a)? (a == b) : (b == 128))
 
-void
-_nc_add_to_try(struct tries **tree, const char *str, unsigned short code)
+NCURSES_EXPORT(int)
+_nc_add_to_try(TRIES ** tree, const char *str, unsigned code)
 {
-    static bool out_of_memory = FALSE;
-    struct tries *ptr, *savedptr;
+    TRIES *ptr, *savedptr;
     unsigned const char *txt = (unsigned const char *) str;
 
-    if (txt == 0 || *txt == '\0' || out_of_memory || code == 0)
-       return;
+    T((T_CALLED("_nc_add_to_try(%p, %s, %u)"), *tree, _nc_visbuf(str), code));
+    if (txt == 0 || *txt == '\0' || code == 0)
+       returnCode(ERR);
 
     if ((*tree) != 0) {
        ptr = savedptr = (*tree);
@@ -61,22 +61,21 @@ _nc_add_to_try(struct tries **tree, const char *str, unsigned short code)
            unsigned char cmp = *txt;
 
            while (!CMP_TRY(ptr->ch, cmp)
-               && ptr->sibling != 0)
+                  && ptr->sibling != 0)
                ptr = ptr->sibling;
 
            if (CMP_TRY(ptr->ch, cmp)) {
                if (*(++txt) == '\0') {
                    ptr->value = code;
-                   return;
+                   returnCode(OK);
                }
                if (ptr->child != 0)
                    ptr = ptr->child;
                else
                    break;
            } else {
-               if ((ptr->sibling = typeCalloc(struct tries, 1)) == 0) {
-                   out_of_memory = TRUE;
-                   return;
+               if ((ptr->sibling = typeCalloc(TRIES, 1)) == 0) {
+                   returnCode(ERR);
                }
 
                savedptr = ptr = ptr->sibling;
@@ -87,11 +86,10 @@ _nc_add_to_try(struct tries **tree, const char *str, unsigned short code)
            }
        }                       /* end for (;;) */
     } else {                   /* (*tree) == 0 :: First sequence to be added */
-       savedptr = ptr = (*tree) = typeCalloc(struct tries, 1);
+       savedptr = ptr = (*tree) = typeCalloc(TRIES, 1);
 
        if (ptr == 0) {
-           out_of_memory = TRUE;
-           return;
+           returnCode(ERR);
        }
 
        SET_TRY(ptr, txt);
@@ -101,19 +99,16 @@ _nc_add_to_try(struct tries **tree, const char *str, unsigned short code)
     /* at this point, we are adding to the try.  ptr->child == 0 */
 
     while (*txt) {
-       ptr->child = typeCalloc(struct tries, 1);
+       ptr->child = typeCalloc(TRIES, 1);
 
        ptr = ptr->child;
 
        if (ptr == 0) {
-           out_of_memory = TRUE;
-
            while ((ptr = savedptr) != 0) {
                savedptr = ptr->child;
                free(ptr);
            }
-
-           return;
+           returnCode(ERR);
        }
 
        SET_TRY(ptr, txt);
@@ -121,5 +116,5 @@ _nc_add_to_try(struct tries **tree, const char *str, unsigned short code)
     }
 
     ptr->value = code;
-    return;
+    returnCode(OK);
 }