From e0fc1a0cb129d15ec82c8782d6c9424b1b3aae98 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vytautas=20=C5=A0altenis?= <vytas@rtfb.lt>
Date: Sat, 10 Sep 2016 12:21:53 +0300
Subject: [PATCH] Don't bother removing trailing newlines in code blocks

The code that collects the block bytes has already removed the trialing
newlines, so this heavyweight regexp machinery is actually doing
nothing.
---
 block.go | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/block.go b/block.go
index 42bed26..d5731d1 100644
--- a/block.go
+++ b/block.go
@@ -29,7 +29,6 @@ const (
 var (
 	reBackslashOrAmp      = regexp.MustCompile("[\\&]")
 	reEntityOrEscapedChar = regexp.MustCompile("(?i)\\\\" + escapable + "|" + charEntity)
-	reTrailingWhitespace  = regexp.MustCompile("(\n *)+$")
 )
 
 // Parse block-level data.
@@ -419,8 +418,8 @@ func (p *parser) html(data []byte, doRender bool) int {
 }
 
 func finalizeHTMLBlock(block *Node) {
-	block.Literal = reTrailingWhitespace.ReplaceAll(block.content, []byte{})
-	block.content = []byte{}
+	block.Literal = block.content
+	block.content = nil
 }
 
 // HTML comment, lax form
@@ -739,7 +738,7 @@ func finalizeCodeBlock(block *Node) {
 		block.Info = unescapeString(bytes.Trim(firstLine, "\n"))
 		block.Literal = rest
 	} else {
-		block.Literal = reTrailingWhitespace.ReplaceAll(block.content, []byte{'\n'})
+		block.Literal = block.content
 	}
 	block.content = nil
 }