60 lines
2 KiB
C
60 lines
2 KiB
C
/*
|
|
* This file is part of the Fun programming language.
|
|
* https://fun-lang.xyz/
|
|
*
|
|
* Copyright 2025 Johannes Findeisen <you@hanez.org>
|
|
* Licensed under the terms of the Apache-2.0 license.
|
|
* https://opensource.org/license/apache-2-0
|
|
*
|
|
* Added: 2025-12-09
|
|
*/
|
|
|
|
/** Minimal handle registries for libxml2 documents and nodes */
|
|
#pragma once
|
|
|
|
#ifdef FUN_WITH_XML2
|
|
#include <libxml/parser.h>
|
|
#include <libxml/tree.h>
|
|
|
|
typedef struct { xmlDocPtr doc; int in_use; } XmlDocSlot;
|
|
typedef struct { xmlNodePtr node; int in_use; } XmlNodeSlot;
|
|
|
|
static XmlDocSlot g_xml_docs[64];
|
|
static XmlNodeSlot g_xml_nodes[256];
|
|
|
|
static int xml_doc_alloc(xmlDocPtr d) {
|
|
for (int i = 1; i < (int)(sizeof(g_xml_docs)/sizeof(g_xml_docs[0])); ++i) {
|
|
if (!g_xml_docs[i].in_use) { g_xml_docs[i].in_use = 1; g_xml_docs[i].doc = d; return i; }
|
|
}
|
|
return 0;
|
|
}
|
|
static xmlDocPtr xml_doc_get(int h) {
|
|
if (h > 0 && h < (int)(sizeof(g_xml_docs)/sizeof(g_xml_docs[0])) && g_xml_docs[h].in_use) return g_xml_docs[h].doc;
|
|
return NULL;
|
|
}
|
|
static int xml_doc_free_handle(int h) {
|
|
if (h <= 0 || h >= (int)(sizeof(g_xml_docs)/sizeof(g_xml_docs[0])) || !g_xml_docs[h].in_use) return 0;
|
|
if (g_xml_docs[h].doc) xmlFreeDoc(g_xml_docs[h].doc);
|
|
g_xml_docs[h].doc = NULL;
|
|
g_xml_docs[h].in_use = 0;
|
|
return 1;
|
|
}
|
|
|
|
static int xml_node_alloc(xmlNodePtr n) {
|
|
for (int i = 1; i < (int)(sizeof(g_xml_nodes)/sizeof(g_xml_nodes[0])); ++i) {
|
|
if (!g_xml_nodes[i].in_use) { g_xml_nodes[i].in_use = 1; g_xml_nodes[i].node = n; return i; }
|
|
}
|
|
return 0;
|
|
}
|
|
static xmlNodePtr xml_node_get(int h) {
|
|
if (h > 0 && h < (int)(sizeof(g_xml_nodes)/sizeof(g_xml_nodes[0])) && g_xml_nodes[h].in_use) return g_xml_nodes[h].node;
|
|
return NULL;
|
|
}
|
|
static int xml_node_free_handle(int h) {
|
|
if (h <= 0 || h >= (int)(sizeof(g_xml_nodes)/sizeof(g_xml_nodes[0])) || !g_xml_nodes[h].in_use) return 0;
|
|
/* nodes are owned by their document; do not free here */
|
|
g_xml_nodes[h].node = NULL;
|
|
g_xml_nodes[h].in_use = 0;
|
|
return 1;
|
|
}
|
|
#endif /* FUN_WITH_XML2 */
|