GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcurses/tinfo/add_tries.c Lines: 0 36 0.0 %
Date: 2017-11-13 Branches: 0 43 0.0 %

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/* $OpenBSD: add_tries.c,v 1.4 2010/01/12 23:22:06 nicm Exp $ */
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/****************************************************************************
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 * Copyright (c) 1998-2005,2006 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 1.4 2010/01/12 23:22:06 nicm 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)"), *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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}