3 files changed, 12 insertions, 0 deletions
diff --git a/source/core/slang-char-util.h b/source/core/slang-char-util.h
index f831f6d55..40abee602 100644
--- a/source/core/slang-char-util.h
+++ b/source/core/slang-char-util.h
@@ -30,6 +30,8 @@ struct CharUtil
 
         /// True if it's alpha
     SLANG_FORCE_INLINE static bool isAlpha(char c) { return (getFlags(c) & (Flag::Upper | Flag::Lower)) != 0; }
+        /// True if it's alpha or a digit
+    SLANG_FORCE_INLINE static bool isAlphaOrDigit(char c) { return (getFlags(c) & (Flag::Upper | Flag::Lower | Flag::Digit)) != 0; }
 
         /// True if the character is a valid hex character
     SLANG_FORCE_INLINE static bool isHexDigit(char c) { return (getFlags(c) & Flag::HexDigit) != 0; }
diff --git a/source/core/slang-command-line.cpp b/source/core/slang-command-line.cpp
index f8b5ff10f..59e6a6265 100644
--- a/source/core/slang-command-line.cpp
+++ b/source/core/slang-command-line.cpp
@@ -116,6 +116,14 @@ void CommandLine::appendArgs(StringBuilder& out) const
     }
 }
 
+void CommandLine::addArgIfNotFound(const String& in)
+{
+    if (m_args.indexOf(in) < 0)
+    {
+        addArg(in);
+    }
+}
+
 String CommandLine::toString() const
 {
     StringBuilder buf;
diff --git a/source/core/slang-command-line.h b/source/core/slang-command-line.h
index f2007865f..163daf710 100644
--- a/source/core/slang-command-line.h
+++ b/source/core/slang-command-line.h
@@ -62,6 +62,8 @@ struct CommandLine
     void addArg(const String& in) { m_args.add(in); }
     void addArgs(const String* args, Int argsCount) { for (Int i = 0; i < argsCount; ++i) addArg(args[i]); }
 
+    void addArgIfNotFound(const String& in);
+
         /// Find the index of an arg which is exact match for slice
     SLANG_INLINE Index findArgIndex(const UnownedStringSlice& slice) const { return m_args.indexOf(slice); }