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jas_tvp.h
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/* * Copyright (c) 2001-2002 Michael David Adams. * All rights reserved. */ /* __START_OF_JASPER_LICENSE__ * * JasPer License Version 2.0 * * Copyright (c) 2001-2006 Michael David Adams * Copyright (c) 1999-2000 Image Power, Inc. * Copyright (c) 1999-2000 The University of British Columbia * * All rights reserved. * * Permission is hereby granted, free of charge, to any person (the * "User") 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, 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: * * 1. The above copyright notices and this permission notice (which * includes the disclaimer below) shall be included in all copies or * substantial portions of the Software. * * 2. The name of a copyright holder shall not be used to endorse or * promote products derived from the Software without specific prior * written permission. * * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS * LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER * THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS * "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 OF THIRD PARTY RIGHTS. IN NO * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY. * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL * PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES, * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH, * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH * RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES. * * __END_OF_JASPER_LICENSE__ */ /* * Tag/Value Parser * * $Id$ */ #ifndef JAS_TVP_H #define JAS_TVP_H /******************************************************************************\ * Includes. \******************************************************************************/ #include <jasper/jas_config.h> #ifdef __cplusplus extern "C" { #endif /******************************************************************************\ * Types. \******************************************************************************/ /* Tag information type. */ typedef struct { int id; /* The ID for the tag. */ char *name; /* The name of the tag. */ } jas_taginfo_t; /* Tag-value parser type. */ typedef struct { char *buf; /* The parsing buffer. */ char *tag; /* The current tag name. */ char *val; /* The current value. */ char *pos; /* The current position in the parsing buffer. */ } jas_tvparser_t; /******************************************************************************\ * Tag information functions. \******************************************************************************/ /* Lookup a tag by name. */ jas_taginfo_t *jas_taginfos_lookup(jas_taginfo_t *taginfos, const char *name); /* This function returns a pointer to the specified taginfo object if it exists (i.e., the pointer is nonnull); otherwise, a pointer to a dummy object is returned. This is useful in some situations to avoid checking for a null pointer. */ jas_taginfo_t *jas_taginfo_nonull(jas_taginfo_t *taginfo); /******************************************************************************\ * Tag-value parser functions. \******************************************************************************/ /* Create a tag-value parser for the specified string. */ jas_tvparser_t *jas_tvparser_create(const char *s); /* Destroy a tag-value parser. */ void jas_tvparser_destroy(jas_tvparser_t *tvparser); /* Get the next tag-value pair. */ int jas_tvparser_next(jas_tvparser_t *tvparser); /* Get the tag name for the current tag-value pair. */ char *jas_tvparser_gettag(jas_tvparser_t *tvparser); /* Get the value for the current tag-value pair. */ char *jas_tvparser_getval(jas_tvparser_t *tvparser); #ifdef __cplusplus } #endif #endif