Add Strings::ascii_to_lowercase()

2 files changed, 12 insertions, 3 deletions

diff --git a/toolsrc/include/vcpkg_Strings.h b/toolsrc/include/vcpkg_Strings.h
index dc17f35d2..b7eabf234 100644
--- a/toolsrc/include/vcpkg_Strings.h
+++ b/toolsrc/include/vcpkg_Strings.h
@@ -60,4 +60,6 @@ namespace vcpkg {namespace Strings
     std::string utf16_to_utf8(const std::wstring& w);
 
     std::string::const_iterator case_insensitive_find(const std::string& s, const std::string& pattern);
+
+    std::string ascii_to_lowercase(const std::string& input);
 }}
diff --git a/toolsrc/src/vcpkg_Strings.cpp b/toolsrc/src/vcpkg_Strings.cpp
index 5d6dcc7a7..452825e7c 100644
--- a/toolsrc/src/vcpkg_Strings.cpp
+++ b/toolsrc/src/vcpkg_Strings.cpp
@@ -50,11 +50,18 @@ namespace vcpkg {namespace Strings
 
     std::string::const_iterator case_insensitive_find(const std::string& s, const std::string& pattern)
     {
-        std::string patter_as_lower_case;
-        std::transform(pattern.begin(), pattern.end(), back_inserter(patter_as_lower_case), tolower);
-        return search(s.begin(), s.end(), patter_as_lower_case.begin(), patter_as_lower_case.end(), [](const char a, const char b)
+        std::string pattern_as_lower_case;
+        std::transform(pattern.begin(), pattern.end(), back_inserter(pattern_as_lower_case), tolower);
+        return search(s.begin(), s.end(), pattern_as_lower_case.begin(), pattern_as_lower_case.end(), [](const char a, const char b)
                       {
                           return tolower(a) == b;
                       });
     }
+
+    std::string ascii_to_lowercase(const std::string& input)
+    {
+        std::string output = input;
+        std::transform(output.begin(), output.end(), output.begin(), ::tolower);
+        return output;
+    }
 }}