mirror of
https://github.com/Aigor44/ncursesw-morphos.git
synced 2024-12-27 07:49:06 +08:00
3a0d9d27e0
+ quiet some pedantic gcc warnings. + modify _nc_wgetch() to check for a -1 in the fifo, e.g., after a SIGWINCH, and discard that value, to avoid confusing application (patch by Eygene Ryabinkin, FreeBSD bin/136223).
122 lines
4.0 KiB
C
122 lines
4.0 KiB
C
/****************************************************************************
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* Copyright (c) 1998-2006,2009 Free Software Foundation, Inc. *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the *
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* "Software"), to deal in the Software without restriction, including *
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* without limitation the rights to use, copy, modify, merge, publish, *
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* distribute, distribute with modifications, sublicense, and/or sell *
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* copies of the Software, and to permit persons to whom the Software is *
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* furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included *
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* in all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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* *
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* Except as contained in this notice, the name(s) of the above copyright *
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* holders shall not be used in advertising or otherwise to promote the *
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* sale, use or other dealings in this Software without prior written *
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* authorization. *
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****************************************************************************/
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/****************************************************************************
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* Author: Thomas E. Dickey 1998-on *
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****************************************************************************/
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/*
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** add_tries.c
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**
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** Add keycode/string to tries-tree.
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**
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*/
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#include <curses.priv.h>
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MODULE_ID("$Id: add_tries.c,v 1.9 2009/10/24 22:41:36 tom Exp $")
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#define SET_TRY(dst,src) if ((dst->ch = *src++) == 128) dst->ch = '\0'
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#define CMP_TRY(a,b) ((a)? (a == b) : (b == 128))
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NCURSES_EXPORT(int)
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_nc_add_to_try(TRIES ** tree, const char *str, unsigned code)
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{
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TRIES *ptr, *savedptr;
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unsigned const char *txt = (unsigned const char *) str;
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T((T_CALLED("_nc_add_to_try(%p, %s, %u)"),
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(void *) *tree, _nc_visbuf(str), code));
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if (txt == 0 || *txt == '\0' || code == 0)
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returnCode(ERR);
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if ((*tree) != 0) {
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ptr = savedptr = (*tree);
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for (;;) {
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unsigned char cmp = *txt;
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while (!CMP_TRY(ptr->ch, cmp)
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&& ptr->sibling != 0)
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ptr = ptr->sibling;
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if (CMP_TRY(ptr->ch, cmp)) {
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if (*(++txt) == '\0') {
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ptr->value = code;
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returnCode(OK);
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}
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if (ptr->child != 0)
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ptr = ptr->child;
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else
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break;
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} else {
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if ((ptr->sibling = typeCalloc(TRIES, 1)) == 0) {
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returnCode(ERR);
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}
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savedptr = ptr = ptr->sibling;
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SET_TRY(ptr, txt);
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ptr->value = 0;
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break;
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}
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} /* end for (;;) */
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} else { /* (*tree) == 0 :: First sequence to be added */
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savedptr = ptr = (*tree) = typeCalloc(TRIES, 1);
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if (ptr == 0) {
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returnCode(ERR);
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}
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SET_TRY(ptr, txt);
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ptr->value = 0;
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}
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/* at this point, we are adding to the try. ptr->child == 0 */
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while (*txt) {
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ptr->child = typeCalloc(TRIES, 1);
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ptr = ptr->child;
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if (ptr == 0) {
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while ((ptr = savedptr) != 0) {
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savedptr = ptr->child;
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free(ptr);
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}
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returnCode(ERR);
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}
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SET_TRY(ptr, txt);
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ptr->value = 0;
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}
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ptr->value = code;
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returnCode(OK);
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}
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