diff options
Diffstat (limited to 'contrib/ncurses/ncurses/base/key_defined.c')
-rw-r--r-- | contrib/ncurses/ncurses/base/key_defined.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/contrib/ncurses/ncurses/base/key_defined.c b/contrib/ncurses/ncurses/base/key_defined.c new file mode 100644 index 000000000000..dac188748770 --- /dev/null +++ b/contrib/ncurses/ncurses/base/key_defined.c @@ -0,0 +1,76 @@ +/**************************************************************************** + * Copyright (c) 2003 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, 2003 * + ****************************************************************************/ + +#include <curses.priv.h> + +MODULE_ID("$Id: key_defined.c,v 1.3 2003/05/17 23:12:27 tom Exp $") + +static int +find_definition(struct tries *tree, const char *str) +{ + struct tries *ptr; + int result = 0; + + if (str != 0 && *str != '\0') { + for (ptr = tree; ptr != 0; ptr = ptr->sibling) { + if (UChar(*str) == UChar(ptr->ch)) { + if (str[1] == '\0' && ptr->child != 0) { + result = -1; + } else if ((result = find_definition(ptr->child, str + 1)) == 0) { + result = ptr->value; + } else if (str[1] == '\0') { + result = -1; + } + } + if (result != 0) + break; + } + } + return (result); +} + +/* + * Returns the keycode associated with the given string. If none is found, + * return 0. If the string is only a prefix to other strings, return -1. + */ +NCURSES_EXPORT(int) +key_defined(const char *str) +{ + int code = ERR; + + T((T_CALLED("key_defined(%s)"), _nc_visbuf(str))); + if (SP != 0 && str != 0) { + code = find_definition(SP->_keytry, str); + } + + returnCode(code); +} |