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--- a/src/utils/smallut.h
+++ b/src/utils/smallut.h
@@ -142,6 +142,8 @@
 /** Remove instances of characters belonging to set (default {space,
     tab}) at beginning and end of input string */
 extern void trimstring(std::string& s, const char *ws = " \t");
+extern void rtrimstring(std::string& s, const char *ws = " \t");
+extern void ltrimstring(std::string& s, const char *ws = " \t");
 
 /** Escape things like < or & by turning them into entities */
 extern std::string escapeHtml(const std::string& in);