From 53f5cdeed1c99d21ba9fbbeb98c98a206d5a4de6 Mon Sep 17 00:00:00 2001
From: Konstantin Shaposhnikov <k.shaposhnikov@gmail.com>
Date: Tue, 8 Mar 2016 00:12:11 +0800
Subject: [PATCH] cmd/present: fix displaying line numbers for .code and .play

Line numbers match line numbers from the included file,
not the lines in the segment selected by the
.code or .play START/STOP regexps.

Fixes golang/go#5248

Change-Id: I374e7b665e98db5032446ae49e6fae00d9d2b975
Reviewed-on: https://go-review.googlesource.com/20311
Reviewed-by: Andrew Gerrand <adg@golang.org>
---
 cmd/present/static/styles.css | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/cmd/present/static/styles.css b/cmd/present/static/styles.css
index 688127f6..d877682b 100644
--- a/cmd/present/static/styles.css
+++ b/cmd/present/static/styles.css
@@ -372,6 +372,12 @@ pre {
   color: black;
 }
 
+pre.numbers span:before {
+  content: attr(num);
+  margin-right: 1em;
+  display: inline-block;
+}
+
 code {
   font-size: 95%;
   font-family: 'Droid Sans Mono', 'Courier New', monospace;