From 13a4cf550a771e314ed874c0ae17163a17fe06f0 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Thu, 25 Mar 2021 17:38:29 -0400
Subject: db_xml_get_float_attr(): New function

---
(limited to 'src')

diff --git a/src/xml.c b/src/xml.c
index 6fafd5b..30298e0 100644
--- a/src/xml.c
+++ b/src/xml.c
@@ -122,6 +122,26 @@ db_xml_get_int_attr(XML_Parser p, const char **attr, const char *name,
 }
 
 void
+db_xml_get_float_attr(XML_Parser p, const char **attr, const char *name,
+		float *dest, int req)
+{
+	for (; attr[0] != NULL; attr += 2) {
+		if (strcmp(attr[0], name) == 0) {
+			if (sscanf(attr[1], "%f", dest) == 1) {
+				return;
+			} else if (req) {
+				db_warn("Invalid \"%s\" attribute value", name);
+				XML_StopParser(p, XML_FALSE);
+			}
+		}
+	}
+	if (req) {
+		db_warn("Required attribute \"%s\" not found", name);
+		XML_StopParser(p, XML_FALSE);
+	}
+}
+
+void
 db_xml_get_string_attr(XML_Parser p, const char **attr, const char *name,
 		char **dest, int req)
 {
diff --git a/src/xml.h b/src/xml.h
index 5b2ad5a..fe88cb9 100644
--- a/src/xml.h
+++ b/src/xml.h
@@ -35,6 +35,8 @@ void db_xml_get_int_attr(XML_Parser p, const char **attr, const char *name,
 		int *dest, int req);
 void db_xml_get_uint32_attr(XML_Parser p, const char **attr, const char *name,
 		Uint32 *dest, int req);
+void db_xml_get_float_attr(XML_Parser p, const char **attr, const char *name,
+		float *dest, int req);
 void db_xml_get_string_attr(XML_Parser p, const char **attr, const char *name,
 		char **dest, int req);
 void db_xml_node_push(XML_Parser p, void *data,
--
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