From 46d2b519fcfe819d4c6c4af09df805f5fbbaf18e Mon Sep 17 00:00:00 2001
From: Talha Mansoor <talha131@gmail.com>
Date: Sun, 10 Nov 2013 00:42:50 +0500
Subject: [PATCH] Add support for new article metadata modified date

Modified date is a standard feature in most blog engines.

Theme developer can use this date to show last updated time of an
article and enclose its value in `<time>` element.

We cannot use mtime of a file for modified_date because it is already
used for date metadata.

Secondly, a file mtime can be affected in a lot many ways, for example,
a sync service can change it, which will be incorrect to show as last
updated time of an article.
---
 docs/getting_started.rst | 2 ++
 pelican/readers.py       | 1 +
 2 files changed, 3 insertions(+)

diff --git a/docs/getting_started.rst b/docs/getting_started.rst
index 201b9ad4..d4eee597 100644
--- a/docs/getting_started.rst
+++ b/docs/getting_started.rst
@@ -301,6 +301,7 @@ this metadata in text files via the following syntax (give your file the
     ##############
 
     :date: 2010-10-03 10:20
+    :modified_date: 2011-01-10 16:56
     :tags: thats, awesome
     :category: yeah
     :slug: my-super-post
@@ -320,6 +321,7 @@ pattern::
 
     Title: My super title
     Date: 2010-12-03 10:20
+    Modified_date: 2011-01-10 16:56
     Category: Python
     Tags: pelican, publishing
     Slug: my-super-post
diff --git a/pelican/readers.py b/pelican/readers.py
index 067bbb85..dc2365ca 100644
--- a/pelican/readers.py
+++ b/pelican/readers.py
@@ -42,6 +42,7 @@ from pelican.utils import get_date, pelican_open
 METADATA_PROCESSORS = {
     'tags': lambda x, y: [Tag(tag, y) for tag in x.split(',')],
     'date': lambda x, y: get_date(x),
+    'modified_date': lambda x, y: get_date(x),
     'status': lambda x, y: x.strip(),
     'category': Category,
     'author': Author,