Add experimental XML parser/writer

Author: ipatix

src/includes/xml.h

@@ -0,0 +1,53 @@
+#ifndef INCLUDE_XML_H
+#define INCLUDE_XML_H
+
+#include <stddef.h>
+
+typedef enum {
+    XML_ELEM_TAG,
+    XML_ELEM_EMPTYTAG,
+    XML_ELEM_XMLDECL,
+    XML_ELEM_DECL,
+    XML_ELEM_COMMENT,
+    XML_ELEM_TEXT,
+    XML_ELEM_ROOT,
+} xml_elem_type_t;
+
+struct xml_attr_t {
+    char *key;
+    char *value;
+};
+
+struct xml_elem_t {
+    xml_elem_type_t type;
+
+    char *name;
+
+    struct xml_elem_t **child_elem_arr;
+    size_t child_elem_count;
+
+    struct xml_attr_t **attr_arr;
+    size_t attr_count;
+
+    char *text;
+};
+
+int xml_create(struct xml_elem_t **doc);
+int xml_create_from_file(struct xml_elem_t **doc, const char *filepath);
+int xml_create_from_string(struct xml_elem_t **doc, const char *buf);
+void xml_destroy(struct xml_elem_t *doc);
+int xml_to_file(struct xml_elem_t *doc, const char *filepath);
+int xml_to_string(struct xml_elem_t *doc, char **xmlstr);
+
+int xml_elem_create(struct xml_elem_t **elem, xml_elem_type_t type);
+int xml_elem_attach(struct xml_elem_t *parent, struct xml_elem_t *elem);
+int xml_elem_create_and_attach(struct xml_elem_t *parent, struct xml_elem_t **elem, xml_elem_type_t type);
+void xml_elem_destroy(struct xml_elem_t *elem);
+int xml_elem_detach(struct xml_elem_t *parent, struct xml_elem_t *elem);
+int xml_elem_destroy_and_detach(struct xml_elem_t *parent, struct xml_elem_t *elem);
+int xml_elem_copy(const struct xml_elem_t *src, struct xml_elem_t **dst);
+
+int xml_attr_set(struct xml_elem_t *elem, const char *key, const char *value);
+int xml_attr_clear(struct xml_elem_t *elem, const char *key);
+
+#endif //INCLUDE_XML_H