mirror of
https://github.com/michaelrsweet/mxml.git
synced 2024-11-14 15:55:30 +00:00
446 lines
7.9 KiB
C
446 lines
7.9 KiB
C
/*
|
|
* Node get functions for Mini-XML, a small XML file parsing library.
|
|
*
|
|
* Copyright 2014-2017 by Michael R Sweet.
|
|
*
|
|
* These coded instructions, statements, and computer programs are the
|
|
* property of Michael R Sweet and are protected by Federal copyright
|
|
* law. Distribution and use rights are outlined in the file "COPYING"
|
|
* which should have been included with this file. If this file is
|
|
* missing or damaged, see the license at:
|
|
*
|
|
* https://michaelrsweet.github.io/mxml
|
|
*/
|
|
|
|
/*
|
|
* Include necessary headers...
|
|
*/
|
|
|
|
#include "config.h"
|
|
#include "mxml.h"
|
|
|
|
|
|
/*
|
|
* 'mxmlGetCDATA()' - Get the value for a CDATA node.
|
|
*
|
|
* @code NULL@ is returned if the node is not a CDATA element.
|
|
*
|
|
* @since Mini-XML 2.7@
|
|
*/
|
|
|
|
const char * /* O - CDATA value or NULL */
|
|
mxmlGetCDATA(mxml_node_t *node) /* I - Node to get */
|
|
{
|
|
/*
|
|
* Range check input...
|
|
*/
|
|
|
|
if (!node || node->type != MXML_ELEMENT ||
|
|
strncmp(node->value.element.name, "![CDATA[", 8))
|
|
return (NULL);
|
|
|
|
/*
|
|
* Return the text following the CDATA declaration...
|
|
*/
|
|
|
|
return (node->value.element.name + 8);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'mxmlGetCustom()' - Get the value for a custom node.
|
|
*
|
|
* @code NULL@ is returned if the node (or its first child) is not a custom
|
|
* value node.
|
|
*
|
|
* @since Mini-XML 2.7@
|
|
*/
|
|
|
|
const void * /* O - Custom value or NULL */
|
|
mxmlGetCustom(mxml_node_t *node) /* I - Node to get */
|
|
{
|
|
/*
|
|
* Range check input...
|
|
*/
|
|
|
|
if (!node)
|
|
return (NULL);
|
|
|
|
/*
|
|
* Return the integer value...
|
|
*/
|
|
|
|
if (node->type == MXML_CUSTOM)
|
|
return (node->value.custom.data);
|
|
else if (node->type == MXML_ELEMENT &&
|
|
node->child &&
|
|
node->child->type == MXML_CUSTOM)
|
|
return (node->child->value.custom.data);
|
|
else
|
|
return (NULL);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'mxmlGetElement()' - Get the name for an element node.
|
|
*
|
|
* @code NULL@ is returned if the node is not an element node.
|
|
*
|
|
* @since Mini-XML 2.7@
|
|
*/
|
|
|
|
const char * /* O - Element name or NULL */
|
|
mxmlGetElement(mxml_node_t *node) /* I - Node to get */
|
|
{
|
|
/*
|
|
* Range check input...
|
|
*/
|
|
|
|
if (!node || node->type != MXML_ELEMENT)
|
|
return (NULL);
|
|
|
|
/*
|
|
* Return the element name...
|
|
*/
|
|
|
|
return (node->value.element.name);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'mxmlGetFirstChild()' - Get the first child of an element node.
|
|
*
|
|
* @code NULL@ is returned if the node is not an element node or if the node
|
|
* has no children.
|
|
*
|
|
* @since Mini-XML 2.7@
|
|
*/
|
|
|
|
mxml_node_t * /* O - First child or NULL */
|
|
mxmlGetFirstChild(mxml_node_t *node) /* I - Node to get */
|
|
{
|
|
/*
|
|
* Range check input...
|
|
*/
|
|
|
|
if (!node || node->type != MXML_ELEMENT)
|
|
return (NULL);
|
|
|
|
/*
|
|
* Return the first child node...
|
|
*/
|
|
|
|
return (node->child);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'mxmlGetInteger()' - Get the integer value from the specified node or its
|
|
* first child.
|
|
*
|
|
* 0 is returned if the node (or its first child) is not an integer value node.
|
|
*
|
|
* @since Mini-XML 2.7@
|
|
*/
|
|
|
|
int /* O - Integer value or 0 */
|
|
mxmlGetInteger(mxml_node_t *node) /* I - Node to get */
|
|
{
|
|
/*
|
|
* Range check input...
|
|
*/
|
|
|
|
if (!node)
|
|
return (0);
|
|
|
|
/*
|
|
* Return the integer value...
|
|
*/
|
|
|
|
if (node->type == MXML_INTEGER)
|
|
return (node->value.integer);
|
|
else if (node->type == MXML_ELEMENT &&
|
|
node->child &&
|
|
node->child->type == MXML_INTEGER)
|
|
return (node->child->value.integer);
|
|
else
|
|
return (0);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'mxmlGetLastChild()' - Get the last child of an element node.
|
|
*
|
|
* @code NULL@ is returned if the node is not an element node or if the node
|
|
* has no children.
|
|
*
|
|
* @since Mini-XML 2.7@
|
|
*/
|
|
|
|
mxml_node_t * /* O - Last child or NULL */
|
|
mxmlGetLastChild(mxml_node_t *node) /* I - Node to get */
|
|
{
|
|
/*
|
|
* Range check input...
|
|
*/
|
|
|
|
if (!node || node->type != MXML_ELEMENT)
|
|
return (NULL);
|
|
|
|
/*
|
|
* Return the node type...
|
|
*/
|
|
|
|
return (node->last_child);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'mxmlGetNextSibling()' - Get the next node for the current parent.
|
|
*
|
|
* @code NULL@ is returned if this is the last child for the current parent.
|
|
*
|
|
* @since Mini-XML 2.7@
|
|
*/
|
|
|
|
mxml_node_t *
|
|
mxmlGetNextSibling(mxml_node_t *node) /* I - Node to get */
|
|
{
|
|
/*
|
|
* Range check input...
|
|
*/
|
|
|
|
if (!node)
|
|
return (NULL);
|
|
|
|
/*
|
|
* Return the node type...
|
|
*/
|
|
|
|
return (node->next);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'mxmlGetOpaque()' - Get an opaque string value for a node or its first child.
|
|
*
|
|
* @code NULL@ is returned if the node (or its first child) is not an opaque
|
|
* value node.
|
|
*
|
|
* @since Mini-XML 2.7@
|
|
*/
|
|
|
|
const char * /* O - Opaque string or NULL */
|
|
mxmlGetOpaque(mxml_node_t *node) /* I - Node to get */
|
|
{
|
|
/*
|
|
* Range check input...
|
|
*/
|
|
|
|
if (!node)
|
|
return (NULL);
|
|
|
|
/*
|
|
* Return the integer value...
|
|
*/
|
|
|
|
if (node->type == MXML_OPAQUE)
|
|
return (node->value.opaque);
|
|
else if (node->type == MXML_ELEMENT &&
|
|
node->child &&
|
|
node->child->type == MXML_OPAQUE)
|
|
return (node->child->value.opaque);
|
|
else
|
|
return (NULL);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'mxmlGetParent()' - Get the parent node.
|
|
*
|
|
* @code NULL@ is returned for a root node.
|
|
*
|
|
* @since Mini-XML 2.7@
|
|
*/
|
|
|
|
mxml_node_t * /* O - Parent node or NULL */
|
|
mxmlGetParent(mxml_node_t *node) /* I - Node to get */
|
|
{
|
|
/*
|
|
* Range check input...
|
|
*/
|
|
|
|
if (!node)
|
|
return (NULL);
|
|
|
|
/*
|
|
* Return the node type...
|
|
*/
|
|
|
|
return (node->parent);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'mxmlGetPrevSibling()' - Get the previous node for the current parent.
|
|
*
|
|
* @code NULL@ is returned if this is the first child for the current parent.
|
|
*
|
|
* @since Mini-XML 2.7@
|
|
*/
|
|
|
|
mxml_node_t * /* O - Previous node or NULL */
|
|
mxmlGetPrevSibling(mxml_node_t *node) /* I - Node to get */
|
|
{
|
|
/*
|
|
* Range check input...
|
|
*/
|
|
|
|
if (!node)
|
|
return (NULL);
|
|
|
|
/*
|
|
* Return the node type...
|
|
*/
|
|
|
|
return (node->prev);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'mxmlGetReal()' - Get the real value for a node or its first child.
|
|
*
|
|
* 0.0 is returned if the node (or its first child) is not a real value node.
|
|
*
|
|
* @since Mini-XML 2.7@
|
|
*/
|
|
|
|
double /* O - Real value or 0.0 */
|
|
mxmlGetReal(mxml_node_t *node) /* I - Node to get */
|
|
{
|
|
/*
|
|
* Range check input...
|
|
*/
|
|
|
|
if (!node)
|
|
return (0.0);
|
|
|
|
/*
|
|
* Return the integer value...
|
|
*/
|
|
|
|
if (node->type == MXML_REAL)
|
|
return (node->value.real);
|
|
else if (node->type == MXML_ELEMENT &&
|
|
node->child &&
|
|
node->child->type == MXML_REAL)
|
|
return (node->child->value.real);
|
|
else
|
|
return (0.0);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'mxmlGetText()' - Get the text value for a node or its first child.
|
|
*
|
|
* @code NULL@ is returned if the node (or its first child) is not a text node.
|
|
* The "whitespace" argument can be NULL.
|
|
*
|
|
* @since Mini-XML 2.7@
|
|
*/
|
|
|
|
const char * /* O - Text string or NULL */
|
|
mxmlGetText(mxml_node_t *node, /* I - Node to get */
|
|
int *whitespace) /* O - 1 if string is preceded by whitespace, 0 otherwise */
|
|
{
|
|
/*
|
|
* Range check input...
|
|
*/
|
|
|
|
if (!node)
|
|
{
|
|
if (whitespace)
|
|
*whitespace = 0;
|
|
|
|
return (NULL);
|
|
}
|
|
|
|
/*
|
|
* Return the integer value...
|
|
*/
|
|
|
|
if (node->type == MXML_TEXT)
|
|
{
|
|
if (whitespace)
|
|
*whitespace = node->value.text.whitespace;
|
|
|
|
return (node->value.text.string);
|
|
}
|
|
else if (node->type == MXML_ELEMENT &&
|
|
node->child &&
|
|
node->child->type == MXML_TEXT)
|
|
{
|
|
if (whitespace)
|
|
*whitespace = node->child->value.text.whitespace;
|
|
|
|
return (node->child->value.text.string);
|
|
}
|
|
else
|
|
{
|
|
if (whitespace)
|
|
*whitespace = 0;
|
|
|
|
return (NULL);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* 'mxmlGetType()' - Get the node type.
|
|
*
|
|
* @code MXML_IGNORE@ is returned if "node" is @code NULL@.
|
|
*
|
|
* @since Mini-XML 2.7@
|
|
*/
|
|
|
|
mxml_type_t /* O - Type of node */
|
|
mxmlGetType(mxml_node_t *node) /* I - Node to get */
|
|
{
|
|
/*
|
|
* Range check input...
|
|
*/
|
|
|
|
if (!node)
|
|
return (MXML_IGNORE);
|
|
|
|
/*
|
|
* Return the node type...
|
|
*/
|
|
|
|
return (node->type);
|
|
}
|
|
|
|
|
|
/*
|
|
* 'mxmlGetUserData()' - Get the user data pointer for a node.
|
|
*
|
|
* @since Mini-XML 2.7@
|
|
*/
|
|
|
|
void * /* O - User data pointer */
|
|
mxmlGetUserData(mxml_node_t *node) /* I - Node to get */
|
|
{
|
|
/*
|
|
* Range check input...
|
|
*/
|
|
|
|
if (!node)
|
|
return (NULL);
|
|
|
|
/*
|
|
* Return the user data pointer...
|
|
*/
|
|
|
|
return (node->user_data);
|
|
}
|