From a41f8ef7338d565329ca8d0cb646e3746032ccd2 Mon Sep 17 00:00:00 2001
From: Chris Double <chris@bethia.(none)>
Date: Mon, 31 Mar 2008 17:26:42 +1300
Subject: [PATCH] Mention how to fail from action in pegs

---
 extra/peg/peg-docs.factor | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/extra/peg/peg-docs.factor b/extra/peg/peg-docs.factor
index c54a39b7b0..5f200be78e 100644
--- a/extra/peg/peg-docs.factor
+++ b/extra/peg/peg-docs.factor
@@ -137,7 +137,7 @@ HELP: action
     "Returns a parser that calls the 'p1' parser and applies the quotation to the AST resulting "
     "from that parse. The result of the quotation is then used as the final AST. This can be used "
     "for manipulating the parse tree to produce a AST better suited for the task at hand rather than "
-    "the default AST." }
+    "the default AST. If the quotation returns " { $link fail } " then the parser fails." }
 { $code "CHAR: 0 CHAR: 9 range [ to-digit ] action" } ;
 
 HELP: sp