From 10477fc2d42bc46d4e99099c67e029896c2101fa Mon Sep 17 00:00:00 2001
From: Nicolas Williams <nico@cryptonector.com>
Date: Wed, 9 Jul 2014 00:39:25 -0500
Subject: [PATCH] Make `while()` handle `break`

---
 builtin.c      | 2 +-
 tests/all.test | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/builtin.c b/builtin.c
index 219133a4..6d53a582 100644
--- a/builtin.c
+++ b/builtin.c
@@ -984,7 +984,7 @@ static const char* const jq_builtins[] = {
   "def while(cond; update): "
   "     def _while: "
   "         if cond then ., (update | _while) else empty end; "
-  "     _while;",
+  "     try _while catch if .==\"break\" then empty else . end;",
   "def limit(n; exp): if n < 0 then exp else foreach exp as $item ([n, null]; if .[0] < 1 then break else [.[0] -1, $item] end; .[1]) end;",
 };
 #undef LIBM_DD
diff --git a/tests/all.test b/tests/all.test
index 1175f1a6..55cb3891 100644
--- a/tests/all.test
+++ b/tests/all.test
@@ -226,6 +226,10 @@ null
 1
 [1,2,4,8,16,32,64]
 
+[while(.<100; .*2|if . > 10 then break else . end)]
+1
+[1,2,4,8]
+
 [foreach .[] as $item ([3, null]; if .[0] < 1 then break else [.[0] -1, $item] end; .[1])]
 [11,22,33,44,55,66,77,88,99]
 [11,22,33]