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/* ----------------------------------------------------------------<Prolog>-
Name: sflxml.h
Title: XML (Extensible Markup Language) access functions
Package: Standard Function Library (SFL)
Written: 1998/02/25 iMatix SFL project team <sfl@imatix.com>
Revised: 2000/01/16
Synopsis: Provides functions to read and write XML files, and manipulate
XML data in memory as list structures. XML is the Extensible
Markup Language. Accepts this XML syntax:
<item [attr=["]value["]]...>value [child]</item>
Copyright: Copyright (c) 1991-99 iMatix Corporation
License: This is free software; you can redistribute it and/or modify
it under the terms of the SFL License Agreement as provided
in the file LICENSE.TXT. This software is distributed in
the hope that it will be useful, but without any warranty.
------------------------------------------------------------------</Prolog>-*/
#ifndef SLFXML_INCLUDED /* Allow multiple inclusions */
#define SLFXML_INCLUDED
/* -------------------------------------------------------------------------
An XML tree is built as the following recursive structure:
.---------. .----------.
.-: Attr :<-->: 0..n : Attributes are not sorted.
.----------. : : Head : : attrs :
: Item :-' `---------' `----------'
: node :-. .---------. .----------.
`----------' : : Child/ :<-->: 0..n : Each child node is the root
`-: Value : : children : of its own tree of nodes.
`---------' `----------'
------------------------------------------------------------------------- */
/*- Structure definitions -------------------------------------------------- */
typedef struct _XML_ITEM XML_ITEM;
typedef struct _XML_ATTR XML_ATTR;
/*- Function prototypes ---------------------------------------------------- */
#ifdef __cplusplus
extern "C" {
#endif
/* XML item functions */
XML_ITEM *xml_new (XML_ITEM *parent,
const char *name,
const char *value);
XML_ITEM *xml_create (const char *name,
const char *value);
void xml_modify_value (XML_ITEM *item,
const char *value);
void xml_rename (XML_ITEM *item,
const char *name);
char *xml_item_name (XML_ITEM *item);
char *xml_item_value (XML_ITEM *item);
void xml_free (XML_ITEM *item);
/* XML tree manipulation */
void xml_attach_child (XML_ITEM *parent, XML_ITEM *item);
void xml_attach_sibling (XML_ITEM *sibling, XML_ITEM *item);
void xml_detach (XML_ITEM *item);
/* XML family navigation */
XML_ITEM *xml_first_child (XML_ITEM *item);
XML_ITEM *xml_last_child (XML_ITEM *item);
XML_ITEM *xml_next_sibling (XML_ITEM *item);
XML_ITEM *xml_prev_sibling (XML_ITEM *item);
XML_ITEM *xml_parent (XML_ITEM *item);
/* XML attribute functions */
int xml_put_attr_ic (XML_ITEM *item,
const char *name,
const char *value,
Bool ignore_case);
XML_ATTR *xml_attr_ic (XML_ITEM *item,
const char *name,
Bool ignore_case);
char *xml_attr_name (XML_ATTR *item);
char *xml_attr_value (XML_ATTR *item);
char *xml_get_attr_ic (XML_ITEM *item,
const char *name,
const char *deflt,
Bool ignore_case);
void xml_free_attr (XML_ATTR *attr);
#define xml_put_attr(item, name, value) \
xml_put_attr_ic (item, name, value, FALSE)
#define xml_attr(item, name) \
xml_attr_ic (item, name, FALSE)
#define xml_get_attr(item, name, dflt) \
xml_get_attr_ic (item, name, dflt, FALSE)
/* XML attribute navigation */
XML_ATTR *xml_first_attr (XML_ITEM *item);
XML_ATTR *xml_last_attr (XML_ITEM *item);
XML_ATTR *xml_next_attr (XML_ATTR *attr);
XML_ATTR *xml_prev_attr (XML_ATTR *attr);
/* XML housekeeping functions */
Bool xml_changed (XML_ITEM *item);
Bool xml_refresh (XML_ITEM **item);
/* Macros to treat all children and all attributes */
#define FORCHILDREN(child,item) for (child = xml_first_child (item); \
child != NULL; \
child = xml_next_sibling (child)) \
if (xml_item_name (child))
#define FORVALUES(child,item) for (child = xml_first_child (item); \
child != NULL; \
child = xml_next_sibling (child)) \
if (!xml_item_name (child))
#define FORATTRIBUTES(attr,item) for (attr = xml_first_attr (item); \
attr != NULL; \
attr = xml_next_attr (attr))
#ifdef __cplusplus
}
#endif
#endif

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