[damned-lies] Highlight pofilter comments in quality check results

[Claude Paroz <claudep src gnome org>]

commit 43acc747ae192c0890497f02bea4d30178e8c717
Author: Claude Paroz <claude 2xlibre net>
Date:   Thu Mar 8 09:51:52 2018 +0100

    Highlight pofilter comments in quality check results

 templates/vertimus/quality-check.html |    2 +-
 vertimus/views.py                     |    7 ++++++-
 2 files changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/templates/vertimus/quality-check.html b/templates/vertimus/quality-check.html
index 5e42f4e..fc7bbcc 100644
--- a/templates/vertimus/quality-check.html
+++ b/templates/vertimus/quality-check.html
@@ -6,7 +6,7 @@
 {% block content-title %}{% trans "Quality check results" %}{% endblock %}
 
 {% block content %}
-{{ results }}
+{{ results|linebreaksbr }}
 {% endblock %}
 
 {% block footer %}
diff --git a/vertimus/views.py b/vertimus/views.py
index 626cd87..182911d 100644
--- a/vertimus/views.py
+++ b/vertimus/views.py
@@ -1,5 +1,6 @@
 import difflib
 import os
+import re
 
 from django.conf import settings
 from django.contrib import messages
@@ -7,6 +8,8 @@ from django.db import IntegrityError
 from django.http import HttpResponse, HttpResponseRedirect, Http404
 from django.shortcuts import render, get_object_or_404
 from django.urls import reverse
+from django.utils.html import escape
+from django.utils.safestring import mark_safe
 from django.utils.translation import ugettext as _
 
 from stats.models import Statistics, FakeLangStatistics, Module, Branch, Domain, Language
@@ -251,7 +254,9 @@ def quality_check(request, pk):
         context['checks'] = ['xmltags']
         results = action.check_po_file(context['checks'])
         if results:
-            context['results'] = results
+            context['results'] = mark_safe(re.sub(
+                r'^(# \(pofilter\) .*)', r'<span class="highlight">\1</span>', escape(results), flags=re.M
+            ))
         else:
             context['results'] = _('The po file looks good!')
     return render(request, 'vertimus/quality-check.html', context)