~ubuntu-branches/ubuntu/wily/sflphone/wily

1.1.12 by Francois Marier
Import upstream version 1.4.1
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/* $Id: string.h 3553 2011-05-05 06:14:19Z nanang $ */
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/* 
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 * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
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 * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 2 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
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 */
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#ifndef __PJLIB_UTIL_STRING_H__
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#define __PJLIB_UTIL_STRING_H__
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/**
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 * @file string.h
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 * @brief More string functions.
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 */
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#include <pj/types.h>
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#include <pjlib-util/scanner.h>
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/**
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 * @defgroup PJLIB_UTIL_STRING String Escaping Utilities
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 * @ingroup PJLIB_TEXT
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 * @{
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 */
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PJ_BEGIN_DECL
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/**
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 * Unescape string. If source string does not contain any escaped
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 * characters, the function would simply return the original string.
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 * Otherwise a new string will be allocated.
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 *
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 * @param pool	    Pool to allocate the string.
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 * @param src	    Source string to unescape.
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 *
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 * @return	    String with no escaped characters.
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 */
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PJ_DECL(pj_str_t) pj_str_unescape( pj_pool_t *pool, const pj_str_t *src);
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/**
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 * Unescape string to destination.
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 *
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 * @param dst	    Target string.
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 * @param src	    Source string.
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 *
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 * @return	    Target string.
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 */
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PJ_DECL(pj_str_t*) pj_strcpy_unescape(pj_str_t *dst, const pj_str_t *src);
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/**
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 * Copy string to destination while escaping reserved characters, up to
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 * the specified maximum length.
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 *
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 * @param dst	    Target string.
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 * @param src	    Source string.
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 * @param max	    Maximum length to copy to target string.
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 * @param unres	    Unreserved characters, which are allowed to appear 
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 *		    unescaped.
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 *
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 * @return	    The target string if all characters have been copied 
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 *		    successfully, or NULL if there's not enough buffer to
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 *		    escape the strings.
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 */
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PJ_DECL(pj_str_t*) pj_strncpy_escape(pj_str_t *dst, const pj_str_t *src,
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				     pj_ssize_t max, const pj_cis_t *unres);
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/**
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 * Copy string to destination while escaping reserved characters, up to
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 * the specified maximum length.
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 *
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 * @param dst	    Target string.
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 * @param src	    Source string.
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 * @param max	    Maximum length to copy to target string.
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 * @param unres	    Unreserved characters, which are allowed to appear 
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 *		    unescaped.
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 *
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 * @return	    The length of the destination, or -1 if there's not
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 *		    enough buffer.
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 */
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PJ_DECL(pj_ssize_t) pj_strncpy2_escape(char *dst, const pj_str_t *src,
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				       pj_ssize_t max, const pj_cis_t *unres);
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PJ_END_DECL
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/**
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 * @}
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 */
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#endif	/* __PJLIB_UTIL_STRING_H__ */