2 files changed, 20 insertions, 0 deletions
diff --git a/src/auxiliary/functions.cc b/src/auxiliary/functions.cc
index 2b42bae..b417a4a 100644
--- a/src/auxiliary/functions.cc
+++ b/src/auxiliary/functions.cc
@@ -76,4 +76,18 @@ const std::string spaces(const std::string &text,size_t n)
 	return s;
 }
 
+void to_lowercase(std::string &text)
+{
+ 	for (std::string::iterator i = text.begin(); i != text.end(); ++i)
+ 		(*i) = tolower(*i);
+}
+
+const std::string lowercase(const std::string &text)
+{
+	std::string t;
+ 	for (std::string::const_iterator i = text.begin(); i != text.end(); ++i)
+ 		t += tolower(*i);
+	return t;
+}
+
 }
diff --git a/src/auxiliary/functions.h b/src/auxiliary/functions.h
index cd9ed13..2202b87 100644
--- a/src/auxiliary/functions.h
+++ b/src/auxiliary/functions.h
@@ -36,6 +36,12 @@ size_t text_length(const std::string &text);
 
 /// prepend spaces to a string up to the desired lenght, excluding color codes
 const std::string spaces(const std::string &text, size_t n);
+
+/// convert a string to lowercase
+void to_lowercase(std::string &text);
+
+/// return text, converted to lowercase
+const std::string lowercase(const std::string &text);
 }
 
 #endif // __INCLUDED_AUX_FUNCTIONS_H__