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/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* For the avoidance of doubt the "preferred form" of this code is one which
* is in an open unpatent encumbered format. Where cryptographic key signing
* forms part of the process of creating an executable the information
* including keys needed to generate an equivalently functional executable
* are deemed to be part of the source code.
*/
#include <string.h>
#include <stdarg.h>
#include <assert.h>
#include <libxml/tree.h>
#include <libxml/xmlstring.h>
// Internal function for dmixml_* functions ... builds up a variable xmlChar* string
xmlChar *dmixml_buildstr(size_t len, const char *fmt, va_list ap) {
xmlChar *ret = NULL, *xmlfmt = NULL;
ret = (xmlChar *) malloc(len+2);
assert( ret != NULL );
memset(ret, 0, len+2);
xmlfmt = xmlCharStrdup(fmt);
assert( xmlfmt != NULL );
xmlStrVPrintf(ret, len, xmlfmt, ap);
free(xmlfmt);
return ret;
}
// Adds an XML property/attribute to the given XML node
//
// xmldata_n = "<test/>";
// dmixml_AddAttribute(xmldata_n, "value", "1234");
// gives: xmldata_n = "<test value="1234/>"
//
xmlAttr *dmixml_AddAttribute(xmlNode *node, const char *atrname, const char *fmt, ...)
{
xmlChar *val_s = NULL, *atrname_s = NULL;
xmlAttr *res = NULL;
va_list ap;
if( (node == NULL) || (atrname == NULL) || (fmt == NULL) ) {
return NULL;
}
atrname_s = xmlCharStrdup(atrname);
assert( atrname_s != NULL );
va_start(ap, fmt);
val_s = dmixml_buildstr(2048, fmt, ap);
va_end(ap);
res = xmlNewProp(node, atrname_s, val_s);
free(atrname_s);
free(val_s);
assert( res != NULL );
return res;
}
// Adds a new XML tag to the current node with the given tag name and value.
//
// xmldata_n = "<test>";
// dmixml_AddTextChild(xmldata_n, "sublevel1", "value");
// gives: xmldata_n = "<test><sublevel1>value</sublevel1></test>"
//
xmlNode *dmixml_AddTextChild(xmlNode *node, const char *tagname, const char *fmt, ...)
{
xmlChar *val_s = NULL, *tagname_s = NULL;
xmlNode *res = NULL;
va_list ap;
if( (node == NULL) || (tagname == NULL) || (fmt == NULL) ) {
return NULL;
}
tagname_s = xmlCharStrdup(tagname);
assert( tagname_s != NULL );
va_start(ap, fmt);
val_s = dmixml_buildstr(2048, fmt, ap);
va_end(ap);
res = xmlNewTextChild(node, NULL, tagname_s, val_s);
free(tagname_s);
free(val_s);
assert( res != NULL );
return res;
}
// Adds a text node child to the current XML node
//
// xmldata_n = "<testdata/>;
// dmixml_AddTextContent(xmldata_n, "some data value");
// gives: xmldata_n = "<testdata>some data value</testdata>"
//
xmlNode *dmixml_AddTextContent(xmlNode *node, const char *fmt, ...)
{
xmlChar *val_s = NULL;
xmlNode *res = NULL;
va_list ap;
if( (node == NULL) || (fmt == NULL) ) {
return NULL;
}
va_start(ap, fmt);
val_s = dmixml_buildstr(2048, fmt, ap);
va_end(ap);
res = xmlAddChild(node, xmlNewText(val_s));
free(val_s);
assert( res != NULL );
return res;
}
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