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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcurses/base/tries.c	Lines:	0	40	0.0 %
Date:	2017-11-07	Branches:	0	36	0.0 %


/* $OpenBSD: tries.c,v 1.5 2010/01/12 23:22:06 nicm Exp $ */

/****************************************************************************
 * Copyright (c) 1998-2007,2008 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: tries.c,v 1.5 2010/01/12 23:22:06 nicm Exp $")

/*
 * 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(TRIES * tree, unsigned code, int *count, size_t len)
{
    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 (ptr != 0 && (result[len] = (char) ptr->ch) == 0)
	    *((unsigned char *) (result + len)) = 128;
#ifdef TRACE
	if (len == 0 && USE_TRACEF(TRACE_MAXIMUM)) {
	    _tracef("expand_key %s %s", _nc_tracechar(SP, code), _nc_visbuf(result));
	    _nc_unlock_global(tracef);
	}
#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(TRIES ** tree, unsigned 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 {
		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(TRIES ** tree, const 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 (UChar((*tree)->ch) == UChar(*string)) {
	    if (string[1] != 0)
		returnCode(_nc_remove_string(&(*tree)->child, string + 1));
	    if ((*tree)->child == 0) {
		TRIES *to_free = *tree;
		*tree = (*tree)->sibling;
		free(to_free);
		returnCode(TRUE);
	    } else {
		returnCode(FALSE);
	    }
	}
	tree = &(*tree)->sibling;
    }
    returnCode(FALSE);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: tries.c,v 1.5 2010/01/12 23:22:06 nicm Exp $ */
2
3			/****************************************************************************
4			* Copyright (c) 1998-2007,2008 Free Software Foundation, Inc. *
5			* *
6			* Permission is hereby granted, free of charge, to any person obtaining a *
7			* copy of this software and associated documentation files (the *
8			* "Software"), to deal in the Software without restriction, including *
9			* without limitation the rights to use, copy, modify, merge, publish, *
10			* distribute, distribute with modifications, sublicense, and/or sell *
11			* copies of the Software, and to permit persons to whom the Software is *
12			* furnished to do so, subject to the following conditions: *
13			* *
14			* The above copyright notice and this permission notice shall be included *
15			* in all copies or substantial portions of the Software. *
16			* *
17			* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
18			* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
19			* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
20			* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
21			* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
22			* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
23			* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
24			* *
25			* Except as contained in this notice, the name(s) of the above copyright *
26			* holders shall not be used in advertising or otherwise to promote the *
27			* sale, use or other dealings in this Software without prior written *
28			* authorization. *
29			****************************************************************************/
30
31			/****************************************************************************
32			* Author: Thomas E. Dickey <dickey@clark.net> 1997 *
33			****************************************************************************/
34
35			/*
36			** tries.c
37			**
38			** Functions to manage the tree of partial-completions for keycodes.
39			**
40			*/
41
42			#include <curses.priv.h>
43
44			MODULE_ID("$Id: tries.c,v 1.5 2010/01/12 23:22:06 nicm Exp $")
45
46			/*
47			* Expand a keycode into the string that it corresponds to, returning null if
48			* no match was found, otherwise allocating a string of the result.
49			*/
50			NCURSES_EXPORT(char *)
51			_nc_expand_try(TRIES * tree, unsigned code, int *count, size_t len)
52			{
53			TRIES *ptr = tree;
54			char *result = 0;
55
56			if (code != 0) {
57			while (ptr != 0) {
58			if ((result = _nc_expand_try(ptr->child, code, count, len + 1))
59			!= 0) {
60			break;
61			}
62			if (ptr->value == code) {
63			*count -= 1;
64			if (*count == -1) {
65			result = typeCalloc(char, len + 2);
66			break;
67			}
68			}
69			ptr = ptr->sibling;
70			}
71			}
72			if (result != 0) {
73			if (ptr != 0 && (result[len] = (char) ptr->ch) == 0)
74			((unsigned char ) (result + len)) = 128;
75			#ifdef TRACE
76			if (len == 0 && USE_TRACEF(TRACE_MAXIMUM)) {
77			_tracef("expand_key %s %s", _nc_tracechar(SP, code), _nc_visbuf(result));
78			_nc_unlock_global(tracef);
79			}
80			#endif
81			}
82			return result;
83			}
84
85			/*
86			* Remove a code from the specified tree, freeing the unused nodes. Returns
87			* true if the code was found/removed.
88			*/
89			NCURSES_EXPORT(int)
90			_nc_remove_key(TRIES ** tree, unsigned code)
91			{
92			T((T_CALLED("_nc_remove_key(%p,%d)"), tree, code));
93
94			if (code == 0)
95			returnCode(FALSE);
96
97			while (*tree != 0) {
98			if (_nc_remove_key(&(*tree)->child, code)) {
99			returnCode(TRUE);
100			}
101			if ((*tree)->value == code) {
102			if ((*tree)->child) {
103			/* don't cut the whole sub-tree */
104			(*tree)->value = 0;
105			} else {
106			TRIES to_free = tree;
107			tree = (tree)->sibling;
108			free(to_free);
109			}
110			returnCode(TRUE);
111			}
112			tree = &(*tree)->sibling;
113			}
114			returnCode(FALSE);
115			}
116
117			/*
118			* Remove a string from the specified tree, freeing the unused nodes. Returns
119			* true if the string was found/removed.
120			*/
121			NCURSES_EXPORT(int)
122			_nc_remove_string(TRIES ** tree, const char *string)
123			{
124			T((T_CALLED("_nc_remove_string(%p,%s)"), tree, _nc_visbuf(string)));
125
126			if (string == 0 \|\| *string == 0)
127			returnCode(FALSE);
128
129			while (*tree != 0) {
130			if (UChar((tree)->ch) == UChar(string)) {
131			if (string[1] != 0)
132			returnCode(_nc_remove_string(&(*tree)->child, string + 1));
133			if ((*tree)->child == 0) {
134			TRIES to_free = tree;
135			tree = (tree)->sibling;
136			free(to_free);
137			returnCode(TRUE);
138			} else {
139			returnCode(FALSE);
140			}
141			}
142			tree = &(*tree)->sibling;
143			}
144			returnCode(FALSE);
145			}