/usr/include/apr-1.0/apr_xml.h is in libaprutil1-dev 1.5.4-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 | /* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file apr_xml.h
* @brief APR-UTIL XML Library
*/
#ifndef APR_XML_H
#define APR_XML_H
/**
* @defgroup APR_Util_XML XML
* @ingroup APR_Util
* @{
*/
#include "apr_pools.h"
#include "apr_tables.h"
#include "apr_file_io.h"
#include "apu.h"
#if APR_CHARSET_EBCDIC
#include "apr_xlate.h"
#endif
#ifdef __cplusplus
extern "C" {
#endif
/**
* @package Apache XML library
*/
/* -------------------------------------------------------------------- */
/* ### these will need to move at some point to a more logical spot */
/** @see apr_text */
typedef struct apr_text apr_text;
/** Structure to keep a linked list of pieces of text */
struct apr_text {
/** The current piece of text */
const char *text;
/** a pointer to the next piece of text */
struct apr_text *next;
};
/** @see apr_text_header */
typedef struct apr_text_header apr_text_header;
/** A list of pieces of text */
struct apr_text_header {
/** The first piece of text in the list */
apr_text *first;
/** The last piece of text in the list */
apr_text *last;
};
/**
* Append a piece of text to the end of a list
* @param p The pool to allocate out of
* @param hdr The text header to append to
* @param text The new text to append
*/
APU_DECLARE(void) apr_text_append(apr_pool_t *p, apr_text_header *hdr,
const char *text);
/* --------------------------------------------------------------------
**
** XML PARSING
*/
/*
** Qualified namespace values
**
** APR_XML_NS_DAV_ID
** We always insert the "DAV:" namespace URI at the head of the
** namespace array. This means that it will always be at ID==0,
** making it much easier to test for.
**
** APR_XML_NS_NONE
** This special ID is used for two situations:
**
** 1) The namespace prefix begins with "xml" (and we do not know
** what it means). Namespace prefixes with "xml" (any case) as
** their first three characters are reserved by the XML Namespaces
** specification for future use. mod_dav will pass these through
** unchanged. When this identifier is used, the prefix is LEFT in
** the element/attribute name. Downstream processing should not
** prepend another prefix.
**
** 2) The element/attribute does not have a namespace.
**
** a) No prefix was used, and a default namespace has not been
** defined.
** b) No prefix was used, and the default namespace was specified
** to mean "no namespace". This is done with a namespace
** declaration of: xmlns=""
** (this declaration is typically used to override a previous
** specification for the default namespace)
**
** In these cases, we need to record that the elem/attr has no
** namespace so that we will not attempt to prepend a prefix.
** All namespaces that are used will have a prefix assigned to
** them -- mod_dav will never set or use the default namespace
** when generating XML. This means that "no prefix" will always
** mean "no namespace".
**
** In both cases, the XML generation will avoid prepending a prefix.
** For the first case, this means the original prefix/name will be
** inserted into the output stream. For the latter case, it means
** the name will have no prefix, and since we never define a default
** namespace, this means it will have no namespace.
**
** Note: currently, mod_dav understands the "xmlns" prefix and the
** "xml:lang" attribute. These are handled specially (they aren't
** left within the XML tree), so the APR_XML_NS_NONE value won't ever
** really apply to these values.
*/
#define APR_XML_NS_DAV_ID 0 /**< namespace ID for "DAV:" */
#define APR_XML_NS_NONE -10 /**< no namespace for this elem/attr */
#define APR_XML_NS_ERROR_BASE -100 /**< used only during processing */
/** Is this namespace an error? */
#define APR_XML_NS_IS_ERROR(e) ((e) <= APR_XML_NS_ERROR_BASE)
/** @see apr_xml_attr */
typedef struct apr_xml_attr apr_xml_attr;
/** @see apr_xml_elem */
typedef struct apr_xml_elem apr_xml_elem;
/** @see apr_xml_doc */
typedef struct apr_xml_doc apr_xml_doc;
/** apr_xml_attr: holds a parsed XML attribute */
struct apr_xml_attr {
/** attribute name */
const char *name;
/** index into namespace array */
int ns;
/** attribute value */
const char *value;
/** next attribute */
struct apr_xml_attr *next;
};
/** apr_xml_elem: holds a parsed XML element */
struct apr_xml_elem {
/** element name */
const char *name;
/** index into namespace array */
int ns;
/** xml:lang for attrs/contents */
const char *lang;
/** cdata right after start tag */
apr_text_header first_cdata;
/** cdata after MY end tag */
apr_text_header following_cdata;
/** parent element */
struct apr_xml_elem *parent;
/** next (sibling) element */
struct apr_xml_elem *next;
/** first child element */
struct apr_xml_elem *first_child;
/** first attribute */
struct apr_xml_attr *attr;
/* used only during parsing */
/** last child element */
struct apr_xml_elem *last_child;
/** namespaces scoped by this elem */
struct apr_xml_ns_scope *ns_scope;
/* used by modules during request processing */
/** Place for modules to store private data */
void *priv;
};
/** Is this XML element empty? */
#define APR_XML_ELEM_IS_EMPTY(e) ((e)->first_child == NULL && \
(e)->first_cdata.first == NULL)
/** apr_xml_doc: holds a parsed XML document */
struct apr_xml_doc {
/** root element */
apr_xml_elem *root;
/** array of namespaces used */
apr_array_header_t *namespaces;
};
/** Opaque XML parser structure */
typedef struct apr_xml_parser apr_xml_parser;
/**
* Create an XML parser
* @param pool The pool for allocating the parser and the parse results.
* @return The new parser.
*/
APU_DECLARE(apr_xml_parser *) apr_xml_parser_create(apr_pool_t *pool);
/**
* Parse a File, producing a xml_doc
* @param p The pool for allocating the parse results.
* @param parser A pointer to *parser (needed so calling function can get
* errors), will be set to NULL on successful completion.
* @param ppdoc A pointer to *apr_xml_doc (which has the parsed results in it)
* @param xmlfd A file to read from.
* @param buffer_length Buffer length which would be suitable
* @return Any errors found during parsing.
*/
APU_DECLARE(apr_status_t) apr_xml_parse_file(apr_pool_t *p,
apr_xml_parser **parser,
apr_xml_doc **ppdoc,
apr_file_t *xmlfd,
apr_size_t buffer_length);
/**
* Feed input into the parser
* @param parser The XML parser for parsing this data.
* @param data The data to parse.
* @param len The length of the data.
* @return Any errors found during parsing.
* @remark Use apr_xml_parser_geterror() to get more error information.
*/
APU_DECLARE(apr_status_t) apr_xml_parser_feed(apr_xml_parser *parser,
const char *data,
apr_size_t len);
/**
* Terminate the parsing and return the result
* @param parser The XML parser for parsing this data.
* @param pdoc The resulting parse information. May be NULL to simply
* terminate the parsing without fetching the info.
* @return Any errors found during the final stage of parsing.
* @remark Use apr_xml_parser_geterror() to get more error information.
*/
APU_DECLARE(apr_status_t) apr_xml_parser_done(apr_xml_parser *parser,
apr_xml_doc **pdoc);
/**
* Fetch additional error information from the parser.
* @param parser The XML parser to query for errors.
* @param errbuf A buffer for storing error text.
* @param errbufsize The length of the error text buffer.
* @return The error buffer
*/
APU_DECLARE(char *) apr_xml_parser_geterror(apr_xml_parser *parser,
char *errbuf,
apr_size_t errbufsize);
/**
* Converts an XML element tree to flat text
* @param p The pool to allocate out of
* @param elem The XML element to convert
* @param style How to covert the XML. One of:
* <PRE>
* APR_XML_X2T_FULL start tag, contents, end tag
* APR_XML_X2T_INNER contents only
* APR_XML_X2T_LANG_INNER xml:lang + inner contents
* APR_XML_X2T_FULL_NS_LANG FULL + ns defns + xml:lang
* </PRE>
* @param namespaces The namespace of the current XML element
* @param ns_map Namespace mapping
* @param pbuf Buffer to put the converted text into
* @param psize Size of the converted text
*/
APU_DECLARE(void) apr_xml_to_text(apr_pool_t *p, const apr_xml_elem *elem,
int style, apr_array_header_t *namespaces,
int *ns_map, const char **pbuf,
apr_size_t *psize);
/* style argument values: */
#define APR_XML_X2T_FULL 0 /**< start tag, contents, end tag */
#define APR_XML_X2T_INNER 1 /**< contents only */
#define APR_XML_X2T_LANG_INNER 2 /**< xml:lang + inner contents */
#define APR_XML_X2T_FULL_NS_LANG 3 /**< FULL + ns defns + xml:lang */
/**
* empty XML element
* @param p The pool to allocate out of
* @param elem The XML element to empty
* @return the string that was stored in the XML element
*/
APU_DECLARE(const char *) apr_xml_empty_elem(apr_pool_t *p,
const apr_xml_elem *elem);
/**
* quote an XML string
* Replace '\<', '\>', and '\&' with '\<', '\>', and '\&'.
* @param p The pool to allocate out of
* @param s The string to quote
* @param quotes If quotes is true, then replace '"' with '\"'.
* @return The quoted string
* @note If the string does not contain special characters, it is not
* duplicated into the pool and the original string is returned.
*/
APU_DECLARE(const char *) apr_xml_quote_string(apr_pool_t *p, const char *s,
int quotes);
/**
* Quote an XML element
* @param p The pool to allocate out of
* @param elem The element to quote
*/
APU_DECLARE(void) apr_xml_quote_elem(apr_pool_t *p, apr_xml_elem *elem);
/* manage an array of unique URIs: apr_xml_insert_uri() and APR_XML_URI_ITEM() */
/**
* return the URI's (existing) index, or insert it and return a new index
* @param uri_array array to insert into
* @param uri The uri to insert
* @return int The uri's index
*/
APU_DECLARE(int) apr_xml_insert_uri(apr_array_header_t *uri_array,
const char *uri);
/** Get the URI item for this XML element */
#define APR_XML_GET_URI_ITEM(ary, i) (((const char * const *)(ary)->elts)[i])
#if APR_CHARSET_EBCDIC
/**
* Convert parsed tree in EBCDIC
* @param p The pool to allocate out of
* @param pdoc The apr_xml_doc to convert.
* @param xlate The translation handle to use.
* @return Any errors found during conversion.
*/
APU_DECLARE(apr_status_t) apr_xml_parser_convert_doc(apr_pool_t *p,
apr_xml_doc *pdoc,
apr_xlate_t *convset);
#endif
#ifdef __cplusplus
}
#endif
/** @} */
#endif /* APR_XML_H */
|