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
|
/* ezxml.h
*
* Copyright 2004-2006 Aaron Voisine <aaron@voisine.org>
*
* Permission is hereby granted, free of charge, to any person 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, sublicense, 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:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "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.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef _EZXML_H
#define _EZXML_H
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <fcntl.h>
#define EZXML_BUFSIZE 1024 // size of internal memory buffers
#define EZXML_NAMEM 0x80 // name is malloced
#define EZXML_TXTM 0x40 // txt is malloced
#define EZXML_DUP 0x20 // attribute name and value are strduped
typedef struct ezxml *ezxml_t;
struct ezxml {
char *name; // tag name
char **attr; // tag attributes { name, value, name, value, ... NULL }
char *txt; // tag character content, empty string if none
size_t off; // tag offset from start of parent tag character content
ezxml_t next; // next tag with same name in this section at this depth
ezxml_t sibling; // next tag with different name in same section and depth
ezxml_t ordered; // next tag, same section and depth, in original order
ezxml_t child; // head of sub tag list, NULL if none
ezxml_t parent; // parent tag, NULL if current tag is root tag
short flags; // additional information
};
// Given a string of xml data and its length, parses it and creates an ezxml
// structure. For efficiency, modifies the data by adding null terminators
// and decoding ampersand sequences. If you don't want this, copy the data and
// pass in the copy. Returns NULL on failure.
ezxml_t ezxml_parse_str(char *s, size_t len);
// returns the first child tag (one level deeper) with the given name or NULL
// if not found
ezxml_t ezxml_child(ezxml_t xml, const char *name);
// returns the next tag of the same name in the same section and depth or NULL
// if not found
#define ezxml_next(xml) ((xml) ? xml->next : NULL)
// Returns the Nth tag with the same name in the same section at the same depth
// or NULL if not found. An index of 0 returns the tag given.
ezxml_t ezxml_idx(ezxml_t xml, int idx);
// returns the name of the given tag
#define ezxml_name(xml) ((xml) ? xml->name : NULL)
// returns the given tag's character content or empty string if none
#define ezxml_txt(xml) ((xml) ? xml->txt : "")
// returns the value of the requested tag attribute, or NULL if not found
const char *ezxml_attr(ezxml_t xml, const char *attr);
// Traverses the ezxml sturcture to retrieve a specific subtag. Takes a
// variable length list of tag names and indexes. The argument list must be
// terminated by either an index of -1 or an empty string tag name. Example:
// title = ezxml_get(library, "shelf", 0, "book", 2, "title", -1);
// This retrieves the title of the 3rd book on the 1st shelf of library.
// Returns NULL if not found.
ezxml_t ezxml_get(ezxml_t xml, ...);
// frees the memory allocated for an ezxml structure
void ezxml_free(ezxml_t xml);
// returns parser error message or empty string if none
const char *ezxml_error(ezxml_t xml);
#endif // _EZXML_H
|
