From 77e7dc1ac70976e39f2bd3bb91f49ab1f25ef524 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 5 Apr 2016 12:53:45 +0200
Subject: Add support for scope/target-qualified variable expansion

For example:

print $(dir/:var)
print $(file{target}:var)
print $(dir/file{target}:var)

Note that if the scope/target does not (yet) exists, it will be created.
---
 build2/lexer.cxx | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'build2/lexer.cxx')

diff --git a/build2/lexer.cxx b/build2/lexer.cxx
index ba43839..53b9e12 100644
--- a/build2/lexer.cxx
+++ b/build2/lexer.cxx
@@ -140,6 +140,7 @@ namespace build2
       // NOTE: remember to update name() if adding new special characters.
       //
     case '\n': fail (c) << "newline in evaluation context";
+    case ':': return token (type::colon, sep, ln, cn);
     case '{': return token (type::lcbrace, sep, ln, cn);
     case '}': return token (type::rcbrace, sep, ln, cn);
     case '$': return token (type::dollar, sep, ln, cn);
@@ -267,6 +268,11 @@ namespace build2
       {
         switch (c)
         {
+        case ':':
+          {
+            done = true;
+            break;
+          }
         case '=':
         case '!':
           {
-- 
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