From b1561de0f6636af53f2e53918b9f4e60265ad076 Mon Sep 17 00:00:00 2001
From: Chris Double <chris@bethia.(none)>
Date: Wed, 26 Mar 2008 15:40:17 +1300
Subject: [PATCH] Reduce amount of generated code for peg token parser

---
 extra/peg/peg.factor | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/extra/peg/peg.factor b/extra/peg/peg.factor
index 1707193e70..ae5ed2f8b2 100755
--- a/extra/peg/peg.factor
+++ b/extra/peg/peg.factor
@@ -43,17 +43,16 @@ TUPLE: token-parser symbol ;
 
 MATCH-VARS: ?token ;
 
-: token-pattern ( -- quot )
-  [
-    ?token 2dup head? [
-      dup >r length tail-slice r> <parse-result>
-    ] [
-      2drop f
-    ] if 
-  ] ;
-  
+: parse-token ( input string -- result )
+  #! Parse the string, returning a parse result
+  2dup head? [
+    dup >r length tail-slice r> <parse-result>
+  ] [
+    2drop f
+  ] if ;
+
 M: token-parser (compile) ( parser -- quot )
-  token-parser-symbol \ ?token token-pattern match-replace ;
+  token-parser-symbol [ parse-token ] curry ;
       
 TUPLE: satisfy-parser quot ;