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Diffstat (limited to 'converter/other/jpeg2000/libjasper/base/jas_tvp.c')
| -rw-r--r-- | converter/other/jpeg2000/libjasper/base/jas_tvp.c | 286 |
1 files changed, 286 insertions, 0 deletions
diff --git a/converter/other/jpeg2000/libjasper/base/jas_tvp.c b/converter/other/jpeg2000/libjasper/base/jas_tvp.c new file mode 100644 index 00000000..aab12703 --- /dev/null +++ b/converter/other/jpeg2000/libjasper/base/jas_tvp.c @@ -0,0 +1,286 @@ +/* + * Copyright (c) 2001-2002 Michael David Adams. + * All rights reserved. + */ + +/* __START_OF_JASPER_LICENSE__ + * + * JasPer Software License + * + * IMAGE POWER JPEG-2000 PUBLIC LICENSE + * ************************************ + * + * GRANT: + * + * Permission is hereby granted, free of charge, to any person (the "User") + * obtaining a copy of this software and associated documentation, to deal + * in the JasPer Software without restriction, including without limitation + * the right to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the JasPer Software (in source and binary forms), + * and to permit persons to whom the JasPer Software is furnished to do so, + * provided further that the License Conditions below are met. + * + * License Conditions + * ****************** + * + * A. Redistributions of source code must retain the above copyright notice, + * and this list of conditions, and the following disclaimer. + * + * B. Redistributions in binary form must reproduce the above copyright + * notice, and this list of conditions, and the following disclaimer in + * the documentation and/or other materials provided with the distribution. + * + * C. Neither the name of Image Power, Inc. nor any other contributor + * (including, but not limited to, the University of British Columbia and + * Michael David Adams) may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * D. User agrees that it shall not commence any action against Image Power, + * Inc., the University of British Columbia, Michael David Adams, or any + * other contributors (collectively "Licensors") for infringement of any + * intellectual property rights ("IPR") held by the User in respect of any + * technology that User owns or has a right to license or sublicense and + * which is an element required in order to claim compliance with ISO/IEC + * 15444-1 (i.e., JPEG-2000 Part 1). "IPR" means all intellectual property + * rights worldwide arising under statutory or common law, and whether + * or not perfected, including, without limitation, all (i) patents and + * patent applications owned or licensable by User; (ii) rights associated + * with works of authorship including copyrights, copyright applications, + * copyright registrations, mask work rights, mask work applications, + * mask work registrations; (iii) rights relating to the protection of + * trade secrets and confidential information; (iv) any right analogous + * to those set forth in subsections (i), (ii), or (iii) and any other + * proprietary rights relating to intangible property (other than trademark, + * trade dress, or service mark rights); and (v) divisions, continuations, + * renewals, reissues and extensions of the foregoing (as and to the extent + * applicable) now existing, hereafter filed, issued or acquired. + * + * E. If User commences an infringement action against any Licensor(s) then + * such Licensor(s) shall have the right to terminate User's license and + * all sublicenses that have been granted hereunder by User to other parties. + * + * F. This software is for use only in hardware or software products that + * are compliant with ISO/IEC 15444-1 (i.e., JPEG-2000 Part 1). No license + * or right to this Software is granted for products that do not comply + * with ISO/IEC 15444-1. The JPEG-2000 Part 1 standard can be purchased + * from the ISO. + * + * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. + * NO USE OF THE JASPER SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER + * THIS DISCLAIMER. THE JASPER SOFTWARE IS PROVIDED BY THE LICENSORS AND + * CONTRIBUTORS UNDER THIS LICENSE ON AN ``AS-IS'' BASIS, WITHOUT WARRANTY + * OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, + * WARRANTIES THAT THE JASPER SOFTWARE IS FREE OF DEFECTS, IS MERCHANTABLE, + * IS FIT FOR A PARTICULAR PURPOSE OR IS NON-INFRINGING. THOSE INTENDING + * TO USE THE JASPER SOFTWARE OR MODIFICATIONS THEREOF FOR USE IN HARDWARE + * OR SOFTWARE PRODUCTS ARE ADVISED THAT THEIR USE MAY INFRINGE EXISTING + * PATENTS, COPYRIGHTS, TRADEMARKS, OR OTHER INTELLECTUAL PROPERTY RIGHTS. + * THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE JASPER SOFTWARE + * IS WITH THE USER. SHOULD ANY PART OF THE JASPER SOFTWARE PROVE DEFECTIVE + * IN ANY RESPECT, THE USER (AND NOT THE INITIAL DEVELOPERS, THE UNIVERSITY + * OF BRITISH COLUMBIA, IMAGE POWER, INC., MICHAEL DAVID ADAMS, OR ANY + * OTHER CONTRIBUTOR) SHALL ASSUME THE COST OF ANY NECESSARY SERVICING, + * REPAIR OR CORRECTION. UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, + * WHETHER TORT (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL THE + * INITIAL DEVELOPER, THE UNIVERSITY OF BRITISH COLUMBIA, IMAGE POWER, INC., + * MICHAEL DAVID ADAMS, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF THE + * JASPER SOFTWARE, OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO + * THE USER OR ANY OTHER PERSON FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR + * CONSEQUENTIAL DAMAGES OF ANY CHARACTER INCLUDING, WITHOUT LIMITATION, + * DAMAGES FOR LOSS OF GOODWILL, WORK STOPPAGE, COMPUTER FAILURE OR + * MALFUNCTION, OR ANY AND ALL OTHER COMMERCIAL DAMAGES OR LOSSES, EVEN IF + * SUCH PARTY HAD BEEN INFORMED, OR OUGHT TO HAVE KNOWN, OF THE POSSIBILITY + * OF SUCH DAMAGES. THE JASPER SOFTWARE AND UNDERLYING TECHNOLOGY ARE NOT + * FAULT-TOLERANT AND ARE NOT DESIGNED, MANUFACTURED OR INTENDED FOR USE OR + * RESALE AS ON-LINE CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING + * FAIL-SAFE PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES, + * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT + * LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH THE FAILURE OF THE + * JASPER SOFTWARE OR UNDERLYING TECHNOLOGY OR PRODUCT COULD LEAD DIRECTLY + * TO DEATH, PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE + * ("HIGH RISK ACTIVITIES"). LICENSOR SPECIFICALLY DISCLAIMS ANY EXPRESS + * OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES. USER WILL NOT + * KNOWINGLY USE, DISTRIBUTE OR RESELL THE JASPER SOFTWARE OR UNDERLYING + * TECHNOLOGY OR PRODUCTS FOR HIGH RISK ACTIVITIES AND WILL ENSURE THAT ITS + * CUSTOMERS AND END-USERS OF ITS PRODUCTS ARE PROVIDED WITH A COPY OF THE + * NOTICE SPECIFIED IN THIS SECTION. + * + * __END_OF_JASPER_LICENSE__ + */ + +/* + * Tag-Value Parser Library + * + * $Id$ + */ + +/******************************************************************************\ +* Includes. +\******************************************************************************/ + +#include <assert.h> +#include <stdio.h> +#include <ctype.h> +#include <stdlib.h> + +#include "jasper/jas_malloc.h" +#include "jasper/jas_string.h" +#include "jasper/jas_tvp.h" + +/******************************************************************************\ +* Macros. +\******************************************************************************/ + +/* Is the specified character valid for a tag name? */ +#define JAS_TVP_ISTAG(x) \ + (isalpha(x) || (x) == '_' || isdigit(x)) + +/******************************************************************************\ +* Code for creating and destroying a tag-value parser. +\******************************************************************************/ + +jas_tvparser_t *jas_tvparser_create(const char *s) +{ + jas_tvparser_t *tvp; + if (!(tvp = jas_malloc(sizeof(jas_tvparser_t)))) { + return 0; + } + if (!(tvp->buf = jas_strdup(s))) { + jas_tvparser_destroy(tvp); + return 0; + } + tvp->pos = tvp->buf; + tvp->tag = 0; + tvp->val = 0; + return tvp; +} + +void jas_tvparser_destroy(jas_tvparser_t *tvp) +{ + if (tvp->buf) { + jas_free(tvp->buf); + } + jas_free(tvp); +} + +/******************************************************************************\ +* Main parsing code. +\******************************************************************************/ + +/* Get the next tag-value pair. */ +int jas_tvparser_next(jas_tvparser_t *tvp) +{ + char *p; + char *tag; + const char *val; + + /* Skip any leading whitespace. */ + p = tvp->pos; + while (*p != '\0' && isspace(*p)) { + ++p; + } + + /* Has the end of the input data been reached? */ + if (*p == '\0') { + /* No more tags are present. */ + tvp->pos = p; + return 1; + } + + /* Does the tag name begin with a valid character? */ + if (!JAS_TVP_ISTAG(*p)) { + return -1; + } + + /* Remember where the tag name begins. */ + tag = p; + + /* Find the end of the tag name. */ + while (*p != '\0' && JAS_TVP_ISTAG(*p)) { + ++p; + } + + /* Has the end of the input data been reached? */ + if (*p == '\0') { + /* The value field is empty. */ + tvp->tag = tag; + tvp->val = ""; + tvp->pos = p; + return 0; + } + + /* Is a value field not present? */ + if (*p != '=') { + if (*p != '\0' && !isspace(*p)) { + return -1; + } + *p++ = '\0'; + tvp->tag = tag; + tvp->val = ""; + tvp->pos = p; + return 0; + } + + *p++ = '\0'; + + val = p; + while (*p != '\0' && !isspace(*p)) { + ++p; + } + + if (*p != '\0') { + *p++ = '\0'; + } + + tvp->pos = p; + tvp->tag = tag; + tvp->val = val; + + return 0; +} + +/******************************************************************************\ +* Code for querying the current tag/value. +\******************************************************************************/ + +/* Get the current tag. */ +char *jas_tvparser_gettag(jas_tvparser_t *tvp) +{ + return tvp->tag; +} + +/* Get the current value. */ +const char *jas_tvparser_getval(jas_tvparser_t *tvp) +{ + return tvp->val; +} + +/******************************************************************************\ +* Miscellaneous code. +\******************************************************************************/ + +/* Lookup a tag by name. */ +jas_taginfo_t *jas_taginfos_lookup(jas_taginfo_t *taginfos, const char *name) +{ + jas_taginfo_t *taginfo; + taginfo = taginfos; + while (taginfo->id >= 0) { + if (!strcmp(taginfo->name, name)) { + return taginfo; + } + ++taginfo; + } + return 0; +} + +/* This function is simply for convenience. */ +/* One can avoid testing for the special case of a null pointer, by + using this function. This function never returns a null pointer. */ +jas_taginfo_t *jas_taginfo_nonull(jas_taginfo_t *taginfo) +{ + static jas_taginfo_t invalidtaginfo = { + -1, 0 + }; + + return taginfo ? taginfo : &invalidtaginfo; +} |