1 files changed, 62 insertions, 0 deletions
diff --git a/src/xml.c b/src/xml.c
new file mode 100644
index 0000000..68a72ed
--- /dev/null
+++ b/src/xml.c
@@ -0,0 +1,62 @@
+#include <string.h>
+#include <stdio.h>
+#include <expat.h>
+#include "xml.h"
+#include "logging.h"
+
+inline int
+xml_check_tag(const char *found, const char *expected)
+{
+	return strcmp(found, expected) != 0;
+}
+
+inline void
+xml_unexpected_start_tag(XML_Parser p, const char *found, const char *expected)
+{
+	warn("Found \"%s\" start tag where expected one of \"%s\" in map",
+			found, expected);
+	XML_StopParser(p, XML_FALSE);
+}
+
+inline void
+xml_unexpected_end_tag(XML_Parser p, const char *found, const char *expected)
+{
+	warn("Found \"%s\" end tag where expected one of \"%s\" in map",
+			found, expected);
+	XML_StopParser(p, XML_FALSE);
+}
+
+void
+xml_get_int_attr(XML_Parser p, const char **attr, const char *name,
+		int *dest, int req)
+{
+	for (; attr[0] != NULL; attr += 2) {
+		if (strcmp(attr[0], name) == 0) {
+			if (sscanf(attr[1], "%d", dest) == 1) {
+				return;
+			} else if (req) {
+				warn("Invalid \"%s\" attribute value", name);
+				XML_StopParser(p, XML_FALSE);
+			}
+		}
+	}
+	if (req) {
+		warn("Required attribute \"%s\" not found", name);
+		XML_StopParser(p, XML_FALSE);
+	}
+}
+
+void
+xml_get_string_attr(XML_Parser p, const char **attr, const char *name,
+		char **dest, int req)
+{
+	for (; attr[0] != NULL; attr += 2) {
+		if (strcmp(attr[0], name) == 0) {
+			*dest = strdup(attr[1]);
+		}
+	}
+	if (req) {
+		warn("Required attribute \"%s\" not found", name);
+		XML_StopParser(p, XML_FALSE);
+	}
+}