Merge pull request #23934 from vespa-engine/vekterli/factor-out-xml-string-escapingv8.48.22

Factor out XML string escaping and use for internal legacy status pages [run-systemtest]

1 files changed, 26 insertions, 0 deletions

diff --git a/vespalib/src/vespa/vespalib/util/string_escape.h b/vespalib/src/vespa/vespalib/util/string_escape.h
new file mode 100644
index 00000000000..3ad926dafc4
--- /dev/null
+++ b/vespalib/src/vespa/vespalib/util/string_escape.h
@@ -0,0 +1,26 @@
+// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+#pragma once
+
+#include <vespa/vespalib/stllike/asciistream.h>
+#include <vespa/vespalib/stllike/string.h>
+#include <iosfwd>
+
+namespace vespalib {
+
+/**
+ * Returns input string but where the following characters are escaped:
+ *   - all control chars < char value 32
+ *   - <, >, &, " and '
+ */
+[[nodiscard]] vespalib::string xml_attribute_escaped(vespalib::stringref s);
+
+/**
+ * Returns input string but where the following characters are escaped:
+ *   - all control chars < char value 32, _except_ linebreak
+ *   - <, > and &
+ */
+[[nodiscard]] vespalib::string xml_content_escaped(vespalib::stringref s);
+void write_xml_content_escaped(vespalib::asciistream& out, vespalib::stringref s);
+void write_xml_content_escaped(std::ostream& out, vespalib::stringref s);
+
+}