diff options
Diffstat (limited to 'ncurses-5.3/ncurses/base/tries.c')
| -rw-r--r-- | ncurses-5.3/ncurses/base/tries.c | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/ncurses-5.3/ncurses/base/tries.c b/ncurses-5.3/ncurses/base/tries.c deleted file mode 100644 index 0b3a058..0000000 --- a/ncurses-5.3/ncurses/base/tries.c +++ /dev/null @@ -1,144 +0,0 @@ -/**************************************************************************** - * Copyright (c) 1998,2000,2001 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 * - * "Software"), to deal in the Software without restriction, including * - * without limitation the rights to use, copy, modify, merge, publish, * - * distribute, distribute with modifications, sublicense, and/or sell * - * copies of the Software, and to permit persons to whom the Software is * - * furnished to do so, subject to the following conditions: * - * * - * The above copyright notice and this permission notice shall be included * - * in all copies or substantial portions of the Software. * - * * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * - * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * - * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * - * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * - * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * - * * - * Except as contained in this notice, the name(s) of the above copyright * - * holders shall not be used in advertising or otherwise to promote the * - * sale, use or other dealings in this Software without prior written * - * authorization. * - ****************************************************************************/ - -/**************************************************************************** - * Author: Thomas E. Dickey <dickey@clark.net> 1997 * - ****************************************************************************/ - -/* -** tries.c -** -** Functions to manage the tree of partial-completions for keycodes. -** -*/ - -#include <curses.priv.h> - -MODULE_ID("$Id$") - -/* - * Expand a keycode into the string that it corresponds to, returning null if - * no match was found, otherwise allocating a string of the result. - */ -NCURSES_EXPORT(char *) -_nc_expand_try -(struct tries *tree, unsigned short code, int *count, size_t len) -{ - struct tries *ptr = tree; - char *result = 0; - - if (code != 0) { - while (ptr != 0) { - if ((result = _nc_expand_try(ptr->child, code, count, len + 1)) - != 0) { - break; - } - if (ptr->value == code) { - *count -= 1; - if (*count == -1) { - result = typeCalloc(char, len + 2); - break; - } - } - ptr = ptr->sibling; - } - } - if (result != 0) { - if ((result[len] = ptr->ch) == 0) - *((unsigned char *) (result + len)) = 128; -#ifdef TRACE - if (len == 0) - _tracef("expand_key %s %s", _tracechar(code), _nc_visbuf(result)); -#endif - } - return result; -} - -/* - * Remove a code from the specified tree, freeing the unused nodes. Returns - * true if the code was found/removed. - */ -NCURSES_EXPORT(int) -_nc_remove_key -(struct tries **tree, unsigned short code) -{ - T((T_CALLED("_nc_remove_key(%p,%d)"), tree, code)); - - if (code == 0) - returnCode(FALSE); - - while (*tree != 0) { - if (_nc_remove_key(&(*tree)->child, code)) { - returnCode(TRUE); - } - if ((*tree)->value == code) { - if ((*tree)->child) { - /* don't cut the whole sub-tree */ - (*tree)->value = 0; - } else { - struct tries *to_free = *tree; - *tree = (*tree)->sibling; - free(to_free); - } - returnCode(TRUE); - } - tree = &(*tree)->sibling; - } - returnCode(FALSE); -} - -/* - * Remove a string from the specified tree, freeing the unused nodes. Returns - * true if the string was found/removed. - */ -NCURSES_EXPORT(int) -_nc_remove_string(struct tries **tree, char *string) -{ - T((T_CALLED("_nc_remove_string(%p,%s)"), tree, _nc_visbuf(string))); - - if (string == 0 || *string == 0) - returnCode(FALSE); - - while (*tree != 0) { - if ((unsigned char) (*tree)->ch == (unsigned char) *string) { - if (string[1] != 0) - returnCode(_nc_remove_string(&(*tree)->child, string + 1)); - if ((*tree)->child) { - /* don't cut the whole sub-tree */ - (*tree)->value = 0; - } else { - struct tries *to_free = *tree; - *tree = (*tree)->sibling; - free(to_free); - } - returnCode(TRUE); - } - tree = &(*tree)->sibling; - } - returnCode(FALSE); -} |