From 44822a252e2ce1142e3293f91285e0ced3ba2fe1 Mon Sep 17 00:00:00 2001
From: xiaojian cai <mc02cxj@gmail.com>
Date: Sun, 6 Jan 2013 21:23:31 +0800
Subject: [PATCH] add regexp support for option 'include','exclude'

---
 lib/jekyll/site.rb | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/lib/jekyll/site.rb b/lib/jekyll/site.rb
index 7dbf1336..423d2e91 100644
--- a/lib/jekyll/site.rb
+++ b/lib/jekyll/site.rb
@@ -22,8 +22,8 @@ module Jekyll
       self.lsi             = config['lsi']
       self.pygments        = config['pygments']
       self.permalink_style = config['permalink'].to_sym
-      self.exclude         = config['exclude'] || []
-      self.include         = config['include'] || []
+      self.exclude         = (config['exclude'] || []).map { |e| Regexp.new("^#{e}$") }
+      self.include         = (config['include'] || []).map { |e| Regexp.new("^#{e}$") }
       self.future          = config['future']
       self.limit_posts     = config['limit_posts'] || nil
 
@@ -318,15 +318,19 @@ module Jekyll
     # Returns the Array of filtered entries.
     def filter_entries(entries)
       entries.reject do |e|
-        unless self.include.include?(e)
+        unless regexp_include?(self.include, e)
           ['.', '_', '#'].include?(e[0..0]) ||
           e[-1..-1] == '~' ||
-          self.exclude.include?(e) ||
+          regexp_include?(self.exclude, e) ||
           File.symlink?(e)
         end
       end
     end
 
+    def regexp_include?(exps, e)
+      !(exps.index { |exp| !exp.match(e).nil? }).nil?
+    end
+
     # Get the implementation class for the given Converter.
     #
     # klass - The Class of the Converter to fetch.