From 09e858a7e219da7afdfa63024ce1110ffc686b81 Mon Sep 17 00:00:00 2001
From: Jon Bergli Heier <snakebite@jvnv.net>
Date: Sun, 12 Mar 2017 23:00:58 +0100
Subject: Added support for rendering markdown.

If a syntax name starts with 'Rendered ' (lazy fix, we'll come up with
something better later) the paste will now be handled by the
corresponding renderer. For now we only support markdown, but this can
easily be extended to support other renderers as well.
---
 pastepy.py          | 37 ++++++++++++++++++++++++++++---------
 static/paste.css    |  1 +
 templates/view.tmpl |  6 ++++++
 3 files changed, 35 insertions(+), 9 deletions(-)

diff --git a/pastepy.py b/pastepy.py
index 25d8746..5e0e404 100644
--- a/pastepy.py
+++ b/pastepy.py
@@ -9,6 +9,11 @@ import random
 import settings
 import templates
 
+try:
+	import markdown
+	has_markdown = True
+except ImportError:
+	has_markdown = False
 from pygments import highlight
 from pygments.lexers import get_all_lexers, get_lexer_by_name
 from pygments.formatters import HtmlFormatter
@@ -38,6 +43,10 @@ class Paste(object):
 				del lexers[l]
 			except KeyError:
 				pass
+		rendered = []
+		if has_markdown:
+			rendered.append(('Rendered markdown', 'md-render'))
+		self.lexers.append(('Rendered', rendered))
 		self.lexers.append(('Others' if settings.categories else 'Syntax', sorted(lexers.items(), cmp = lambda a, b: cmp(a[0], b[0]))))
 		self.formatter = CustomHtmlFormatter(linenos = 'table', lineanchors = 'line', anchorlinenos = True)
 
@@ -72,12 +81,16 @@ class Paste(object):
 			}))]
 
 	def preview(self, mp):
-		try:
-			lex = get_lexer_by_name(mp['syntax'].value.decode('utf8'))
-			lexername = lex.name
-			text = highlight(mp['text'].value.decode('utf8'), lex, self.formatter)
-		except:
-			return self.message('Could not find the lexer "%s".' % mp['syntax'].value, 'Error')
+		if mp['syntax'].value == 'md-render' and has_markdown:
+			text = markdown.markdown(mp['text'].value)
+			lexername = 'Rendered markdown'
+		else:
+			try:
+				lex = get_lexer_by_name(mp['syntax'].value.decode('utf8'))
+				lexername = lex.name
+				text = highlight(mp['text'].value.decode('utf8'), lex, self.formatter)
+			except:
+				return self.message('Could not find the lexer "%s".' % mp['syntax'].value, 'Error')
 
 		self.start_response('200 OK', [('Content-Type', 'text/html; charset=utf-8')])
 		return [str(templates.view(searchList = {
@@ -89,6 +102,7 @@ class Paste(object):
 			'syntax': lexername,
 			'pastetitle': mp['title'].value.decode('utf8') or 'Untitled',
 			'text': text,
+			'rendered': (lexername or '').startswith('Rendered '),
 			}))]
 
 	def add_paste(self, mp):
@@ -118,9 +132,13 @@ class Paste(object):
 
 	def view(self):
 		def get_formatted(syntax, text):
-			lex = get_lexer_by_name(syntax or 'text')
-			lexername = lex.name
-			text = highlight(text, lex, self.formatter)
+			if syntax == 'md-render' and has_markdown:
+				text = markdown.markdown(text)
+				lexername = 'Rendered markdown'
+			else:
+				lex = get_lexer_by_name(syntax or 'text')
+				lexername = lex.name
+				text = highlight(text, lex, self.formatter)
 			return (lexername, text)
 
 		hash = self.path[1]
@@ -158,6 +176,7 @@ class Paste(object):
 			'syntax': cache.syntax_name,
 			'pastetitle': paste.title or 'Untitled',
 			'text': cache.text,
+			'rendered': (cache.syntax_name or '').startswith('Rendered '),
 			}))]
 
 	def raw(self):
diff --git a/static/paste.css b/static/paste.css
index 36df2f2..7bd00c8 100644
--- a/static/paste.css
+++ b/static/paste.css
@@ -11,6 +11,7 @@ div#info { font-size: small; color: #bbb; }
 span#nick, span#date, span#syntax-type { color: #888; }
 div#alt-links { font-size: small; }
 div#alt-links a { color: #44f; }
+div.paste-rendered { background-color: #fff; }
 .highlighttable { width: 100%; padding-top: 1em; }
 .highlighttable td.code { width: 100%; background-color: #fff; }
 .highlighttable td { vertical-align: top; }
diff --git a/templates/view.tmpl b/templates/view.tmpl
index 445a1ad..a23c36e 100644
--- a/templates/view.tmpl
+++ b/templates/view.tmpl
@@ -18,6 +18,12 @@
 				<a href="/raw/$hash">Download as plain text</a>
 #end if
 			</div>
+#if $rendered
+			<div class="paste-rendered">
+#end if
 			$text
+#if $rendered
+			</div>
+#end if
 		</div>
 #end def
-- 
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