From adc965e762111b4b6d9a905bfe8fbdf474d406db Mon Sep 17 00:00:00 2001
From: Paul Beckingham <paul@beckingham.net>
Date: Thu, 25 Jan 2018 00:59:05 -0500
Subject: [PATCH] Lexer: Migrated to unicodeLatinAlpha

---
 src/Lexer.cpp | 13 +++----------
 src/Lexer.h   |  1 -
 2 files changed, 3 insertions(+), 11 deletions(-)

diff --git a/src/Lexer.cpp b/src/Lexer.cpp
index df8af936d..ca5d0c3d6 100644
--- a/src/Lexer.cpp
+++ b/src/Lexer.cpp
@@ -143,13 +143,6 @@ const std::string Lexer::typeName (const Lexer::Type& type)
   return "unknown";
 }
 
-////////////////////////////////////////////////////////////////////////////////
-bool Lexer::isAlpha (int c)
-{
-  return (c >= 'A' && c <= 'Z') ||
-         (c >= 'a' && c <= 'z');
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 // Digits 0-9.
 //
@@ -225,7 +218,7 @@ bool Lexer::isBoundary (int left, int right)
   if (right == '\0')                                          return true;
 
   // XOR
-  if (isAlpha (left)           != isAlpha (right))            return true;
+  if (unicodeLatinAlpha (left) != unicodeLatinAlpha (right))  return true;
   if (isDigit (left)           != isDigit (right))            return true;
   if (unicodeWhitespace (left) != unicodeWhitespace (right))  return true;
 
@@ -262,7 +255,7 @@ bool Lexer::isPunctuation (int c)
          c != '$'      &&
          c != '_'      &&
          ! isDigit (c) &&
-         ! isAlpha (c);
+         ! unicodeLatinAlpha (c);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -1217,7 +1210,7 @@ bool Lexer::isDOM (std::string& token, Lexer::Type& type)
     }
 
     // Lookahead: !<alpha>
-    else if (! isAlpha (_text[marker]))
+    else if (! unicodeLatinAlpha (_text[marker]))
     {
       token = _text.substr (marker, _cursor - marker);
       type = Lexer::Type::dom;
diff --git a/src/Lexer.h b/src/Lexer.h
index f5438bf31..fe4951da2 100644
--- a/src/Lexer.h
+++ b/src/Lexer.h
@@ -61,7 +61,6 @@ public:
 
   // Static helpers.
   static const std::string typeName          (const Lexer::Type&);
-  static bool isAlpha                        (int);
   static bool isDigit                        (int);
   static bool isIdentifierStart              (int);
   static bool isIdentifierNext               (int);