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/* Copyright 2018-2018 University Corporation for Atmospheric Research/Unidata. */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <string.h>
#include "tinyxml2.h"
#include "ncxml.h"
#ifndef nulldup
#define nulldup(s) ((s)?strdup(s):NULL)
#endif
using namespace tinyxml2;
static int ncxml_initialized = 0;
void
ncxml_initialize(void)
{
ncxml_initialized = 1;
}
void
ncxml_finalize(void)
{
ncxml_initialized = 0;
}
ncxml_doc_t
ncxml_parse(char* contents, size_t len)
{
XMLError err = XML_SUCCESS;
XMLDocument* doc = new XMLDocument(); /* the resulting document tree */
doc->Parse(contents,len);
if((err = doc->ErrorID()))
return NULL;
return (ncxml_doc_t)doc;
}
void
ncxml_free(ncxml_doc_t doc0)
{
XMLDocument* doc = (XMLDocument*)doc0;
delete doc;
}
ncxml_t
ncxml_root(ncxml_doc_t doc0)
{
XMLDocument* doc = (XMLDocument*)doc0;
return (ncxml_t)doc->RootElement();
}
/* Element name */
const char*
ncxml_name(ncxml_t xml0)
{
XMLNode* xml = (XMLNode*)xml0;
XMLElement* e = (xml?xml->ToElement():NULL);
return (e?e->Name():NULL);
}
char*
ncxml_attr(ncxml_t xml0, const char* key)
{
XMLNode* n = (XMLNode*)xml0;
XMLElement* xml = (n?n->ToElement():NULL);
const char* value = NULL;
char* s = NULL;
value = xml->Attribute(key);
s = nulldup((char*)value);
return s;
}
/* First child by name */
ncxml_t
ncxml_child(ncxml_t xml0, const char* name)
{
XMLNode* n = (XMLNode*)xml0;
XMLElement* xml = (n?n->ToElement():NULL);
XMLNode* child = NULL;
child = xml->FirstChildElement(name);
return (child?(ncxml_t)child:NULL);
}
ncxml_t
ncxml_next(ncxml_t xml0, const char* name)
{
XMLNode* n = (XMLNode*)xml0;
XMLElement* xml = (n?n->ToElement():NULL);
XMLNode* next = NULL;
next = xml->NextSiblingElement(name);
return (next?(ncxml_t)next:NULL);
}
char*
ncxml_text(ncxml_t xml0)
{
XMLNode* n = (XMLNode*)xml0;
XMLElement* xml = (n?n->ToElement():NULL);
const char* txt = NULL;
char* s = NULL;
if(xml == NULL) return NULL;
txt = xml->GetText();
s = nulldup((char*)txt);
return s;
}
/* Nameless versions of child and next */
ncxml_t
ncxml_child_first(ncxml_t xml0)
{
XMLNode* n = (XMLNode*)xml0;
XMLElement* xml = (n?n->ToElement():NULL);
XMLNode* child = NULL;
if(xml == NULL) return NULL;
child = xml->FirstChild();
return (child?(ncxml_t)child:NULL);
}
ncxml_t
ncxml_child_next(ncxml_t xml0)
{
XMLNode* n = (XMLNode*)xml0;
XMLElement* xml = (n?n->ToElement():NULL);
XMLNode* child = NULL;
if(xml == NULL) return NULL;
child = xml->NextSiblingElement();
return (child?(ncxml_t)child:NULL);
}
int
ncxml_attr_pairs(ncxml_t xml0, char*** pairsp)
{
XMLNode* n = (XMLNode*)xml0;
XMLElement* xml = (n?n->ToElement():NULL);
const XMLAttribute* attr = NULL;
int i,count = 0;
char** pairs = NULL;
if(xml == NULL) return 0;
/* First count */
for(attr=xml->FirstAttribute();attr;attr=attr->Next()) count++;
/* Allocate */
pairs = (char**)malloc(sizeof(char*)*((2*count)+1));
if(pairs == NULL) return 0;
/* Collect */
for(i=0,attr=xml->FirstAttribute();attr;i+=2,attr=attr->Next()) {
const char* value;
pairs[i] = nulldup((char*)attr->Name());
value = attr->Value();
pairs[i+1] = nulldup((char*)value);
}
pairs[2*count] = NULL;
if(pairsp) *pairsp = pairs;
return 1;
}
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