From c5c880e5627d88ab2f7dd7596d59cf34ebba1ebb Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 10 Sep 2015 11:10:15 +0200
Subject: Add support for token pre-processing in lexer

---
 build/lexer.cxx | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'build/lexer.cxx')

diff --git a/build/lexer.cxx b/build/lexer.cxx
index b680234..79611c6 100644
--- a/build/lexer.cxx
+++ b/build/lexer.cxx
@@ -11,6 +11,15 @@ namespace build
   token lexer::
   next ()
   {
+    token t (next_impl ());
+    if (processor_ != nullptr)
+      processor_ (t, *this);
+    return t;
+  }
+
+  token lexer::
+  next_impl ()
+  {
     lexer_mode m (mode_.top ());
 
     // For some modes we have dedicated imlementations of next().
-- 
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