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* Copyright 2004-2006 Aaron Voisine <aaron@voisine.org>
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#define EZXML_BUFSIZE 1024 // size of internal memory buffers
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#define EZXML_NAMEM 0x80 // name is malloced
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#define EZXML_TXTM 0x40 // txt is malloced
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#define EZXML_DUP 0x20 // attribute name and value are strduped
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typedef struct ezxml *ezxml_t;
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char *name; // tag name
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char **attr; // tag attributes { name, value, name, value, ... NULL }
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char *txt; // tag character content, empty string if none
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size_t off; // tag offset from start of parent tag character content
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ezxml_t next; // next tag with same name in this section at this depth
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ezxml_t sibling; // next tag with different name in same section and depth
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ezxml_t ordered; // next tag, same section and depth, in original order
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ezxml_t child; // head of sub tag list, NULL if none
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ezxml_t parent; // parent tag, NULL if current tag is root tag
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short flags; // additional information
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// Given a string of xml data and its length, parses it and creates an ezxml
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// structure. For efficiency, modifies the data by adding null terminators
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// and decoding ampersand sequences. If you don't want this, copy the data and
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// pass in the copy. Returns NULL on failure.
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ezxml_t ezxml_parse_str(char *s, size_t len);
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// returns the first child tag (one level deeper) with the given name or NULL
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ezxml_t ezxml_child(ezxml_t xml, const char *name);
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// returns the next tag of the same name in the same section and depth or NULL
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#define ezxml_next(xml) ((xml) ? xml->next : NULL)
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// Returns the Nth tag with the same name in the same section at the same depth
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// or NULL if not found. An index of 0 returns the tag given.
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ezxml_t ezxml_idx(ezxml_t xml, int idx);
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// returns the name of the given tag
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#define ezxml_name(xml) ((xml) ? xml->name : NULL)
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// returns the given tag's character content or empty string if none
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#define ezxml_txt(xml) ((xml) ? xml->txt : "")
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// returns the value of the requested tag attribute, or NULL if not found
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const char *ezxml_attr(ezxml_t xml, const char *attr);
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// Traverses the ezxml sturcture to retrieve a specific subtag. Takes a
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// variable length list of tag names and indexes. The argument list must be
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// terminated by either an index of -1 or an empty string tag name. Example:
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// title = ezxml_get(library, "shelf", 0, "book", 2, "title", -1);
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// This retrieves the title of the 3rd book on the 1st shelf of library.
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// Returns NULL if not found.
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ezxml_t ezxml_get(ezxml_t xml, ...);
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// frees the memory allocated for an ezxml structure
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void ezxml_free(ezxml_t xml);
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// returns parser error message or empty string if none
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const char *ezxml_error(ezxml_t xml);