diff --git a/CMakeLists.txt b/CMakeLists.txt
index d1edd83e..e5ce481e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -173,6 +173,7 @@ set(INTERNAL_HEADERS
         ${HEADER_DIR}/internal/catch_stringbuilder.h
         ${HEADER_DIR}/internal/catch_stringdata.h
         ${HEADER_DIR}/internal/catch_stringref.h
+        ${HEADER_DIR}/internal/catch_string_manip.h
         ${HEADER_DIR}/internal/catch_suppress_warnings.h
         ${HEADER_DIR}/internal/catch_tag_alias.h
         ${HEADER_DIR}/internal/catch_tag_alias_registry.h
@@ -220,6 +221,7 @@ set(IMPL_SOURCES
         ${HEADER_DIR}/internal/catch_stringbuilder.cpp
         ${HEADER_DIR}/internal/catch_stringdata.cpp
         ${HEADER_DIR}/internal/catch_stringref.cpp
+        ${HEADER_DIR}/internal/catch_string_manip.cpp
         ${HEADER_DIR}/internal/catch_tag_alias_registry.cpp
         ${HEADER_DIR}/internal/catch_test_case_info.cpp
         ${HEADER_DIR}/internal/catch_test_case_tracker.cpp
diff --git a/include/internal/catch_commandline.cpp b/include/internal/catch_commandline.cpp
index 087aa276..484b7740 100644
--- a/include/internal/catch_commandline.cpp
+++ b/include/internal/catch_commandline.cpp
@@ -9,6 +9,7 @@
 #include "catch_commandline.hpp"
 
 #include "catch_common.h"
+#include "catch_string_manip.h"
 
 #include <fstream>
 #include <ctime>
diff --git a/include/internal/catch_common.cpp b/include/internal/catch_common.cpp
index a35ef93a..d865cd52 100644
--- a/include/internal/catch_common.cpp
+++ b/include/internal/catch_common.cpp
@@ -11,70 +11,9 @@
 #include "catch_interfaces_config.h"
 
 #include <cstring>
-#include <cctype>
 
 namespace Catch {
 
-    bool startsWith( std::string const& s, std::string const& prefix ) {
-        return s.size() >= prefix.size() && std::equal(prefix.begin(), prefix.end(), s.begin());
-    }
-    bool startsWith( std::string const& s, char prefix ) {
-        return !s.empty() && s[0] == prefix;
-    }
-    bool endsWith( std::string const& s, std::string const& suffix ) {
-        return s.size() >= suffix.size() && std::equal(suffix.rbegin(), suffix.rend(), s.rbegin());
-    }
-    bool endsWith( std::string const& s, char suffix ) {
-        return !s.empty() && s[s.size()-1] == suffix;
-    }
-    bool contains( std::string const& s, std::string const& infix ) {
-        return s.find( infix ) != std::string::npos;
-    }
-    char toLowerCh(char c) {
-        return static_cast<char>( std::tolower( c ) );
-    }
-    void toLowerInPlace( std::string& s ) {
-        std::transform( s.begin(), s.end(), s.begin(), toLowerCh );
-    }
-    std::string toLower( std::string const& s ) {
-        std::string lc = s;
-        toLowerInPlace( lc );
-        return lc;
-    }
-    std::string trim( std::string const& str ) {
-        static char const* whitespaceChars = "\n\r\t ";
-        std::string::size_type start = str.find_first_not_of( whitespaceChars );
-        std::string::size_type end = str.find_last_not_of( whitespaceChars );
-
-        return start != std::string::npos ? str.substr( start, 1+end-start ) : std::string();
-    }
-
-    bool replaceInPlace( std::string& str, std::string const& replaceThis, std::string const& withThis ) {
-        bool replaced = false;
-        std::size_t i = str.find( replaceThis );
-        while( i != std::string::npos ) {
-            replaced = true;
-            str = str.substr( 0, i ) + withThis + str.substr( i+replaceThis.size() );
-            if( i < str.size()-withThis.size() )
-                i = str.find( replaceThis, i+withThis.size() );
-            else
-                i = std::string::npos;
-        }
-        return replaced;
-    }
-
-    pluralise::pluralise( std::size_t count, std::string const& label )
-    :   m_count( count ),
-        m_label( label )
-    {}
-
-    std::ostream& operator << ( std::ostream& os, pluralise const& pluraliser ) {
-        os << pluraliser.m_count << ' ' << pluraliser.m_label;
-        if( pluraliser.m_count != 1 )
-            os << 's';
-        return os;
-    }
-
     SourceLineInfo::SourceLineInfo() noexcept : file(""), line( 0 ){}
     SourceLineInfo::SourceLineInfo( char const* _file, std::size_t _line ) noexcept
     :   file( _file ),
@@ -111,4 +50,8 @@ namespace Catch {
     bool alwaysTrue() { return true; }
     bool alwaysFalse() { return false; }
 
+    std::string StreamEndStop::operator+() const {
+        return std::string();
+    }
+
 }
diff --git a/include/internal/catch_common.h b/include/internal/catch_common.h
index 3ef325e0..5c5de452 100644
--- a/include/internal/catch_common.h
+++ b/include/internal/catch_common.h
@@ -22,7 +22,6 @@
 #define INTERNAL_CATCH_STRINGIFY( expr ) INTERNAL_CATCH_STRINGIFY2( expr )
 
 #include <sstream>
-#include <algorithm>
 #include <exception>
 
 namespace Catch {
@@ -45,26 +44,6 @@ namespace Catch {
         virtual ~NonCopyable();
     };
 
-
-    bool startsWith( std::string const& s, std::string const& prefix );
-    bool startsWith( std::string const& s, char prefix );
-    bool endsWith( std::string const& s, std::string const& suffix );
-    bool endsWith( std::string const& s, char suffix );
-    bool contains( std::string const& s, std::string const& infix );
-    void toLowerInPlace( std::string& s );
-    std::string toLower( std::string const& s );
-    std::string trim( std::string const& str );
-    bool replaceInPlace( std::string& str, std::string const& replaceThis, std::string const& withThis );
-
-    struct pluralise {
-        pluralise( std::size_t count, std::string const& label );
-
-        friend std::ostream& operator << ( std::ostream& os, pluralise const& pluraliser );
-
-        std::size_t m_count;
-        std::string m_label;
-    };
-
     struct SourceLineInfo {
 
         SourceLineInfo() noexcept;
@@ -98,9 +77,7 @@ namespace Catch {
     // as well as
     //    >> stuff +StreamEndStop
     struct StreamEndStop {
-        std::string operator+() const {
-            return std::string();
-        }
+        std::string operator+() const;
     };
     template<typename T>
     T const& operator + ( T const& value, StreamEndStop ) {
diff --git a/include/internal/catch_list.cpp b/include/internal/catch_list.cpp
index de58badb..36cd0545 100644
--- a/include/internal/catch_list.cpp
+++ b/include/internal/catch_list.cpp
@@ -12,11 +12,12 @@
 #include "catch_interfaces_reporter.h"
 #include "catch_interfaces_testcase.h"
 
-#include "internal/catch_text.h"
+#include "catch_text.h"
 
 #include "catch_console_colour.hpp"
 #include "catch_test_spec_parser.hpp"
 #include "catch_tostring.h"
+#include "catch_string_manip.h"
 
 #include <limits>
 #include <algorithm>
diff --git a/include/internal/catch_matchers_string.cpp b/include/internal/catch_matchers_string.cpp
index 207193fb..2f8ffdb8 100644
--- a/include/internal/catch_matchers_string.cpp
+++ b/include/internal/catch_matchers_string.cpp
@@ -7,6 +7,7 @@
  */
 
 #include "catch_matchers_string.h"
+#include "catch_string_manip.h"
 
 namespace Catch {
 namespace Matchers {
diff --git a/include/internal/catch_matchers_vector.h b/include/internal/catch_matchers_vector.h
index 1f9e0a61..b176d4a3 100644
--- a/include/internal/catch_matchers_vector.h
+++ b/include/internal/catch_matchers_vector.h
@@ -10,6 +10,8 @@
 
 #include "catch_matchers.hpp"
 
+#include <algorithm>
+
 namespace Catch {
 namespace Matchers {
 
diff --git a/include/internal/catch_run_context.cpp b/include/internal/catch_run_context.cpp
index 7ed79950..68f824fa 100644
--- a/include/internal/catch_run_context.cpp
+++ b/include/internal/catch_run_context.cpp
@@ -1,6 +1,7 @@
 #include "catch_run_context.hpp"
 
 #include <cassert>
+#include <algorithm>
 
 namespace Catch {
 
diff --git a/include/internal/catch_string_manip.cpp b/include/internal/catch_string_manip.cpp
new file mode 100644
index 00000000..84762044
--- /dev/null
+++ b/include/internal/catch_string_manip.cpp
@@ -0,0 +1,77 @@
+/*
+ *  Created by Martin on 25/07/2017.
+ *
+ *  Distributed under the Boost Software License, Version 1.0. (See accompanying
+ *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ */
+
+#include "catch_string_manip.h"
+
+#include <algorithm>
+#include <ostream>
+#include <cstring>
+#include <cctype>
+
+namespace Catch {
+
+    bool startsWith( std::string const& s, std::string const& prefix ) {
+        return s.size() >= prefix.size() && std::equal(prefix.begin(), prefix.end(), s.begin());
+    }
+    bool startsWith( std::string const& s, char prefix ) {
+        return !s.empty() && s[0] == prefix;
+    }
+    bool endsWith( std::string const& s, std::string const& suffix ) {
+        return s.size() >= suffix.size() && std::equal(suffix.rbegin(), suffix.rend(), s.rbegin());
+    }
+    bool endsWith( std::string const& s, char suffix ) {
+        return !s.empty() && s[s.size()-1] == suffix;
+    }
+    bool contains( std::string const& s, std::string const& infix ) {
+        return s.find( infix ) != std::string::npos;
+    }
+    char toLowerCh(char c) {
+        return static_cast<char>( std::tolower( c ) );
+    }
+    void toLowerInPlace( std::string& s ) {
+        std::transform( s.begin(), s.end(), s.begin(), toLowerCh );
+    }
+    std::string toLower( std::string const& s ) {
+        std::string lc = s;
+        toLowerInPlace( lc );
+        return lc;
+    }
+    std::string trim( std::string const& str ) {
+        static char const* whitespaceChars = "\n\r\t ";
+        std::string::size_type start = str.find_first_not_of( whitespaceChars );
+        std::string::size_type end = str.find_last_not_of( whitespaceChars );
+
+        return start != std::string::npos ? str.substr( start, 1+end-start ) : std::string();
+    }
+
+    bool replaceInPlace( std::string& str, std::string const& replaceThis, std::string const& withThis ) {
+        bool replaced = false;
+        std::size_t i = str.find( replaceThis );
+        while( i != std::string::npos ) {
+            replaced = true;
+            str = str.substr( 0, i ) + withThis + str.substr( i+replaceThis.size() );
+            if( i < str.size()-withThis.size() )
+                i = str.find( replaceThis, i+withThis.size() );
+            else
+                i = std::string::npos;
+        }
+        return replaced;
+    }
+
+    pluralise::pluralise( std::size_t count, std::string const& label )
+    :   m_count( count ),
+        m_label( label )
+    {}
+
+    std::ostream& operator << ( std::ostream& os, pluralise const& pluraliser ) {
+        os << pluraliser.m_count << ' ' << pluraliser.m_label;
+        if( pluraliser.m_count != 1 )
+            os << 's';
+        return os;
+    }
+
+}
diff --git a/include/internal/catch_string_manip.h b/include/internal/catch_string_manip.h
new file mode 100644
index 00000000..6292cd57
--- /dev/null
+++ b/include/internal/catch_string_manip.h
@@ -0,0 +1,36 @@
+/*
+ *  Created by Martin on 25/07/2017.
+ *
+ *  Distributed under the Boost Software License, Version 1.0. (See accompanying
+ *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ */
+#ifndef TWOBLUECUBES_CATCH_STRING_MANIP_H_INCLUDED
+#define TWOBLUECUBES_CATCH_STRING_MANIP_H_INCLUDED
+
+#include <string>
+#include <iosfwd>
+
+namespace Catch {
+
+    bool startsWith( std::string const& s, std::string const& prefix );
+    bool startsWith( std::string const& s, char prefix );
+    bool endsWith( std::string const& s, std::string const& suffix );
+    bool endsWith( std::string const& s, char suffix );
+    bool contains( std::string const& s, std::string const& infix );
+    void toLowerInPlace( std::string& s );
+    std::string toLower( std::string const& s );
+    std::string trim( std::string const& str );
+    bool replaceInPlace( std::string& str, std::string const& replaceThis, std::string const& withThis );
+
+    struct pluralise {
+        pluralise( std::size_t count, std::string const& label );
+
+        friend std::ostream& operator << ( std::ostream& os, pluralise const& pluraliser );
+
+        std::size_t m_count;
+        std::string m_label;
+    };
+}
+
+#endif // TWOBLUECUBES_CATCH_STRING_MANIP_H_INCLUDED
+
diff --git a/include/internal/catch_tag_alias_registry.cpp b/include/internal/catch_tag_alias_registry.cpp
index d0ee2f7c..c0969445 100644
--- a/include/internal/catch_tag_alias_registry.cpp
+++ b/include/internal/catch_tag_alias_registry.cpp
@@ -10,6 +10,7 @@
 #include "catch_console_colour.hpp"
 #include "catch_interfaces_registry_hub.h"
 #include "catch_stream.h"
+#include "catch_string_manip.h"
 
 namespace Catch {
 
diff --git a/include/internal/catch_test_case_info.cpp b/include/internal/catch_test_case_info.cpp
index f75f5a3c..0e4ac1d2 100644
--- a/include/internal/catch_test_case_info.cpp
+++ b/include/internal/catch_test_case_info.cpp
@@ -10,6 +10,7 @@
 #include "catch_test_case_info.h"
 #include "catch_interfaces_testcase.h"
 #include "catch_common.h"
+#include "catch_string_manip.h"
 
 #include <cctype>
 #include <exception>
diff --git a/include/internal/catch_test_case_registry_impl.hpp b/include/internal/catch_test_case_registry_impl.hpp
index 068ffe58..7008ae9f 100644
--- a/include/internal/catch_test_case_registry_impl.hpp
+++ b/include/internal/catch_test_case_registry_impl.hpp
@@ -13,6 +13,7 @@
 #include "catch_test_spec.hpp"
 #include "catch_context.h"
 #include "catch_interfaces_config.h"
+#include "catch_string_manip.h"
 
 #include <vector>
 #include <set>
diff --git a/include/internal/catch_test_spec.cpp b/include/internal/catch_test_spec.cpp
index 878d8424..0809fc5b 100644
--- a/include/internal/catch_test_spec.cpp
+++ b/include/internal/catch_test_spec.cpp
@@ -6,6 +6,7 @@
  */
 
 #include "catch_test_spec.hpp"
+#include "catch_string_manip.h"
 
 #include <string>
 #include <vector>
diff --git a/include/internal/catch_test_spec_parser.hpp b/include/internal/catch_test_spec_parser.hpp
index 3e003685..497253d2 100644
--- a/include/internal/catch_test_spec_parser.hpp
+++ b/include/internal/catch_test_spec_parser.hpp
@@ -14,6 +14,7 @@
 #endif
 
 #include "catch_test_spec.hpp"
+#include "catch_string_manip.h"
 #include "catch_interfaces_tag_alias_registry.h"
 
 namespace Catch {
diff --git a/include/internal/catch_wildcard_pattern.cpp b/include/internal/catch_wildcard_pattern.cpp
index e99ff5f2..f33035dd 100644
--- a/include/internal/catch_wildcard_pattern.cpp
+++ b/include/internal/catch_wildcard_pattern.cpp
@@ -6,6 +6,7 @@
  */
 
 #include "catch_wildcard_pattern.hpp"
+#include "catch_string_manip.h"
 
 
 namespace Catch {
diff --git a/include/reporters/catch_reporter_bases.hpp b/include/reporters/catch_reporter_bases.hpp
index ce1834d5..6fd40243 100644
--- a/include/reporters/catch_reporter_bases.hpp
+++ b/include/reporters/catch_reporter_bases.hpp
@@ -10,6 +10,7 @@
 
 #include "../internal/catch_interfaces_reporter.h"
 
+#include <algorithm>
 #include <cstring>
 #include <cfloat>
 #include <cstdio>