Lexer: Added ::wasQuoted to determine original quote state

src/Lexer.cpp

@@ -324,6 +324,15 @@ void Lexer::dequote (std::string& input)
   }
 }
 
+////////////////////////////////////////////////////////////////////////////////
+bool Lexer::wasQuoted (const std::string& input)
+{
+  if (input.find_first_of (" \t()") != std::string::npos)
+    return true;
+
+  return false;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 bool Lexer::isEOS () const
 {

src/Lexer.h

@@ -75,6 +75,7 @@ public:
   static bool isBoundary            (int, int);
   static bool isPunctuation         (int);
   static void dequote               (std::string&);
+  static bool wasQuoted             (const std::string&);
 
   // Helpers.
   bool isEOS () const;

test/lexer.t.cpp

@@ -36,7 +36,7 @@ Context context;
 ////////////////////////////////////////////////////////////////////////////////
 int main (int argc, char** argv)
 {
-  UnitTest t (795);
+  UnitTest t (799);
 
   std::vector <std::pair <std::string, Lexer::Type>> tokens;
   std::string token;
@@ -80,6 +80,12 @@ int main (int argc, char** argv)
   t.ok    (Lexer::isBoundary ('(', '('), "'(' --> '(' = isBoundary");
   t.notok (Lexer::isBoundary ('r', 'd'), "'r' --> 'd' = isBoundary");
 
+  // static bool Lexer::wasQuoted (const std::string&);
+  t.notok (Lexer::wasQuoted (""),        "'' --> !wasQuoted");
+  t.notok (Lexer::wasQuoted ("foo"),     "'foo' --> !wasQuoted");
+  t.ok    (Lexer::wasQuoted ("a b"),     "'a b' --> wasQuoted");
+  t.ok    (Lexer::wasQuoted ("(a)"),     "'(a)' --> wasQuoted");
+
   // Should result in no tokens.
   Lexer l0 ("");
   t.notok (l0.token (token, type), "'' --> no tokens");