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c84eaa5018
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4975 d0543943-73ff-0310-b7d9-9358b9ac24b2
146 lines
3.4 KiB
C
146 lines
3.4 KiB
C
/*
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* This file is part of the Sofia-SIP package
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*
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* Copyright (C) 2005 Nokia Corporation.
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*
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* Contact: Pekka Pessi <pekka.pessi@nokia.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#ifndef STRING0_H
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/** Defined when <sofia-sip/string0.h> is included. */
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#define STRING0_H
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/**@file sofia-sip/string0.h
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*
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* @brief Extra string function.
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*
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* String comparison functions accepting NULL pointers: str0cmp(),
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* str0ncmp(), str0casecmp(), str0ncasecmp(). Also includes span functions
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* testing at most @a n bytes: strncspn(), strnspn().
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*/
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#ifndef SU_CONFIG_H
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#include <sofia-sip/su_config.h>
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#endif
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#include <string.h>
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SOFIA_BEGIN_DECLS
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su_inline int str0cmp(char const *a, char const *b)
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{
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if (a == NULL) a = "";
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if (b == NULL) b = "";
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return strcmp(a, b);
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}
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su_inline int str0ncmp(char const *a, char const *b, size_t n)
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{
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if (a == NULL) a = "";
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if (b == NULL) b = "";
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return strncmp(a, b, n);
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}
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su_inline int str0casecmp(char const *a, char const *b)
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{
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if (a == NULL) a = "";
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if (b == NULL) b = "";
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return strcasecmp(a, b);
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}
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su_inline int str0ncasecmp(char const *a, char const *b, size_t n)
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{
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if (a == NULL) a = "";
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if (b == NULL) b = "";
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return strncasecmp(a, b, n);
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}
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#if !SU_HAVE_INLINE
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SOFIAPUBFUN size_t strnspn(char const *s, size_t size, char const *term);
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SOFIAPUBFUN size_t strncspn(char const *s, size_t ssize, char const *reject);
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#else
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su_inline size_t strnspn(char const *s, size_t ssize, char const *term)
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{
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size_t n;
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size_t tsize = strlen(term);
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if (tsize == 0) {
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return 0;
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}
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else if (tsize == 1) {
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char c, t = term[0];
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for (n = 0; n < ssize && (c = s[n]) && c == t; n++)
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;
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}
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else if (tsize == 2) {
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char c, t1 = term[0], t2 = term[1];
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for (n = 0; n < ssize && (c = s[n]) && (c == t1 || c == t2); n++)
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;
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}
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else {
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size_t i;
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char c, t1 = term[0], t2 = term[1];
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for (n = 0; n < ssize && (c = s[n]) && (c == t1 || c == t2); n++) {
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for (i = 2; i < tsize; i++)
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if (c == term[i])
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return n;
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}
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}
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return n;
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}
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su_inline size_t strncspn(char const *s, size_t ssize, char const *reject)
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{
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size_t n;
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size_t rsize = strlen(reject);
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if (rsize == 0) {
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for (n = 0; n < ssize && s[n]; n++)
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;
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}
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else if (rsize == 1) {
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char c, rej = reject[0];
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for (n = 0; n < ssize && (c = s[n]) && c != rej; n++)
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;
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}
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else if (rsize == 2) {
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char c, rej1 = reject[0], rej2 = reject[1];
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for (n = 0; n < ssize && (c = s[n]) && c != rej1 && c != rej2; n++)
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;
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}
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else {
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size_t i;
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char c, rej1 = reject[0], rej2 = reject[1];
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for (n = 0; n < ssize && (c = s[n]) && c != rej1 && c != rej2; n++) {
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for (i = 2; i < rsize; i++)
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if (c == reject[i])
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return n;
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}
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}
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return n;
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}
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#endif
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SOFIA_END_DECLS
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#endif /* !STRING0_H */
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