StringUtil: More Wrappers For <cctype>

`Common::IsLower(char)` was omitted as nothing needed it.

1 files changed, 15 insertions, 0 deletions

diff --git a/Source/Core/Common/StringUtil.h b/Source/Core/Common/StringUtil.h
index 8aa5bd3f68..8ccc05ee6b 100644
--- a/Source/Core/Common/StringUtil.h
+++ b/Source/Core/Common/StringUtil.h
@@ -275,6 +275,21 @@ inline bool IsAlpha(char c)
   return std::isalpha(c, std::locale::classic());
 }
 
+inline bool IsAlnum(char c)
+{
+  return std::isalnum(c, std::locale::classic());
+}
+
+inline bool IsUpper(char c)
+{
+  return std::isupper(c, std::locale::classic());
+}
+
+inline bool IsXDigit(char c)
+{
+  return std::isxdigit(c /* no locale needed */) != 0;
+}
+
 inline char ToLower(char ch)
 {
   return std::tolower(ch, std::locale::classic());