From 30c6aee79f739cf9d6c5f7052a376c25b695b482 Mon Sep 17 00:00:00 2001
From: Andrew Radev <andrey.radev@gmail.com>
Date: Sat, 21 Apr 2012 12:25:00 +0300
Subject: [PATCH] More comments on parsing |(a, b)|

---
 indent/ruby.vim | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/indent/ruby.vim b/indent/ruby.vim
index 9f47670f..fe91518d 100644
--- a/indent/ruby.vim
+++ b/indent/ruby.vim
@@ -92,6 +92,14 @@ let s:continuation_regex =
 let s:bracket_continuation_regex = '\%([({[]\)\s*\%(#.*\)\=$'
 
 " Regex that defines blocks.
+"
+" Note that there's a slight problem with this regex and s:continuation_regex.
+" Code like this will be matched by both:
+"
+"   method_call do |(a, b)|
+"
+" The reason is that the pipe matches a hanging "|" operator.
+"
 let s:block_regex =
       \ '\%(\<do:\@!\>\|{\)\s*\%(|\s*(\=\%([*@&]\=\h\w*,\=\s*\)\%(,\s*(\=\s*[*@&]\=\h\w*)\=\)*|\)\=\s*\%(#.*\)\=$'