From 5a4eeaae207a15511039992e80a3174daaead239 Mon Sep 17 00:00:00 2001 From: Silvan Jegen Date: Sun, 4 Sep 2016 20:57:18 +0200 Subject: Add the ezxmllib for testing --- ezxmllib.h | 167 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 167 insertions(+) create mode 100644 ezxmllib.h (limited to 'ezxmllib.h') diff --git a/ezxmllib.h b/ezxmllib.h new file mode 100644 index 0000000..3e02078 --- /dev/null +++ b/ezxmllib.h @@ -0,0 +1,167 @@ +/* ezxml.h + * + * Copyright 2004-2006 Aaron Voisine + * + * 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 +#include +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif + +#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); + +// A wrapper for ezxml_parse_str() that accepts a file descriptor. First +// attempts to mem map the file. Failing that, reads the file into memory. +// Returns NULL on failure. +ezxml_t ezxml_parse_fd(int fd); + +// a wrapper for ezxml_parse_fd() that accepts a file name +ezxml_t ezxml_parse_file(const char *file); + +// Wrapper for ezxml_parse_str() that accepts a file stream. Reads the entire +// stream into memory and then parses it. For xml files, use ezxml_parse_file() +// or ezxml_parse_fd() +ezxml_t ezxml_parse_fp(FILE *fp); + +// 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, ...); + +// Converts an ezxml structure back to xml. Returns a string of xml data that +// must be freed. +char *ezxml_toxml(ezxml_t xml); + +// returns a NULL terminated array of processing instructions for the given +// target +const char **ezxml_pi(ezxml_t xml, const char *target); + +// 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); + +// returns a new empty ezxml structure with the given root tag name +ezxml_t ezxml_new(const char *name); + +// wrapper for ezxml_new() that strdup()s name +#define ezxml_new_d(name) ezxml_set_flag(ezxml_new(strdup(name)), EZXML_NAMEM) + +// Adds a child tag. off is the offset of the child tag relative to the start +// of the parent tag's character content. Returns the child tag. +ezxml_t ezxml_add_child(ezxml_t xml, const char *name, size_t off); + +// wrapper for ezxml_add_child() that strdup()s name +#define ezxml_add_child_d(xml, name, off) \ + ezxml_set_flag(ezxml_add_child(xml, strdup(name), off), EZXML_NAMEM) + +// sets the character content for the given tag and returns the tag +ezxml_t ezxml_set_txt(ezxml_t xml, const char *txt); + +// wrapper for ezxml_set_txt() that strdup()s txt +#define ezxml_set_txt_d(xml, txt) \ + ezxml_set_flag(ezxml_set_txt(xml, strdup(txt)), EZXML_TXTM) + +// Sets the given tag attribute or adds a new attribute if not found. A value +// of NULL will remove the specified attribute. Returns the tag given. +ezxml_t ezxml_set_attr(ezxml_t xml, const char *name, const char *value); + +// Wrapper for ezxml_set_attr() that strdup()s name/value. Value cannot be NULL +#define ezxml_set_attr_d(xml, name, value) \ + ezxml_set_attr(ezxml_set_flag(xml, EZXML_DUP), strdup(name), strdup(value)) + +// sets a flag for the given tag and returns the tag +ezxml_t ezxml_set_flag(ezxml_t xml, short flag); + +// removes a tag along with its subtags without freeing its memory +ezxml_t ezxml_cut(ezxml_t xml); + +// inserts an existing tag into an ezxml structure +ezxml_t ezxml_insert(ezxml_t xml, ezxml_t dest, size_t off); + +// Moves an existing tag to become a subtag of dest at the given offset from +// the start of dest's character content. Returns the moved tag. +#define ezxml_move(xml, dest, off) ezxml_insert(ezxml_cut(xml), dest, off) + +// removes a tag along with all its subtags +#define ezxml_remove(xml) ezxml_free(ezxml_cut(xml)) + +#ifdef __cplusplus +} +#endif + +#endif // _EZXML_H -- cgit v1.2.1-18-gbd029