add support for mediawiki templates

README.md

@@ -21,30 +21,31 @@ template engines included in the distribution.
 
 Support for these template engines is included with the package:
 
-    ENGINE                     FILE EXTENSIONS        REQUIRED LIBRARIES
-    -------------------------- ---------------------- ----------------------------
-    ERB                        .erb, .rhtml           none (included ruby stdlib)
-    Interpolated String        .str                   none (included ruby core)
-    Erubis                     .erb, .rhtml, .erubis  erubis
-    Haml                       .haml                  haml
-    Sass                       .sass                  haml (< 3.1) or sass (>= 3.1)
-    Scss                       .scss                  haml (< 3.1) or sass (>= 3.1)
-    Less CSS                   .less                  less
-    Builder                    .builder               builder
-    Liquid                     .liquid                liquid
-    RDiscount                  .markdown, .mkd, .md   rdiscount
-    Redcarpet                  .markdown, .mkd, .md   redcarpet
-    BlueCloth                  .markdown, .mkd, .md   bluecloth
-    Kramdown                   .markdown, .mkd, .md   kramdown
-    Maruku                     .markdown, .mkd, .md   maruku
-    RedCloth                   .textile               redcloth
-    RDoc                       .rdoc                  rdoc
-    Radius                     .radius                radius
-    Markaby                    .mab                   markaby
-    Nokogiri                   .nokogiri              nokogiri
-    CoffeeScript               .coffee                coffee-script (+ javascript)
-    Creole (Wiki markup)       .creole                creole
-    Yajl                       .yajl                  yajl-ruby
+    ENGINE                     FILE EXTENSIONS         REQUIRED LIBRARIES
+    -------------------------- ----------------------- ----------------------------
+    ERB                        .erb, .rhtml            none (included ruby stdlib)
+    Interpolated String        .str                    none (included ruby core)
+    Erubis                     .erb, .rhtml, .erubis   erubis
+    Haml                       .haml                   haml
+    Sass                       .sass                   haml (< 3.1) or sass (>= 3.1)
+    Scss                       .scss                   haml (< 3.1) or sass (>= 3.1)
+    Less CSS                   .less                   less
+    Builder                    .builder                builder
+    Liquid                     .liquid                 liquid
+    RDiscount                  .markdown, .mkd, .md    rdiscount
+    Redcarpet                  .markdown, .mkd, .md    redcarpet
+    BlueCloth                  .markdown, .mkd, .md    bluecloth
+    Kramdown                   .markdown, .mkd, .md    kramdown
+    Maruku                     .markdown, .mkd, .md    maruku
+    RedCloth                   .textile                redcloth
+    RDoc                       .rdoc                   rdoc
+    Radius                     .radius                 radius
+    Markaby                    .mab                    markaby
+    Nokogiri                   .nokogiri               nokogiri
+    CoffeeScript               .coffee                 coffee-script (+ javascript)
+    Creole (Wiki markup)       .wiki, .creole          creole
+    WikiCloth (Wiki markup)    .wiki, .mediawiki, .mw  wikicloth
+    Yajl                       .yajl                   yajl-ruby
 
 These template engines ship with their own Tilt integration:
 

lib/tilt.rb

@@ -181,8 +181,9 @@ def clear
   require 'tilt/rdoc'
   register RDocTemplate, 'rdoc'
 
-  require 'tilt/creole'
-  register CreoleTemplate, 'creole'
+  require 'tilt/wiki'
+  register CreoleTemplate,    'wiki', 'creole'
+  register WikiClothTemplate, 'wiki', 'mediawiki', 'mw'
 
   require 'tilt/yajl'
   register YajlTemplate, 'yajl'

lib/tilt/creole.rb → lib/tilt/wiki.rb

@@ -25,4 +25,26 @@ def evaluate(scope, locals, &block)
       @output ||= @engine.to_html
     end
   end
+
+  # WikiCloth implementation. See:
+  # http://redcloth.org/
+  class WikiClothTemplate < Template
+    def self.engine_initialized?
+      defined? ::WikiCloth::Parser
+    end
+
+    def initialize_engine
+      require_template_library 'wikicloth'
+    end
+
+    def prepare
+      @parser = options.delete(:parser) || WikiCloth::Parser
+      @engine = @parser.new options.merge(:data => data)
+      @output = nil
+    end
+
+    def evaluate(scope, locals, &block)
+      @output ||= @engine.to_html
+    end
+  end
 end

test/tilt_creoletemplate_test.rb

@@ -9,6 +9,10 @@ class CreoleTemplateTest < Test::Unit::TestCase
       assert_equal Tilt::CreoleTemplate, Tilt['test.creole']
     end
 
+    test "registered for '.wiki' files" do
+      assert Tilt.mappings['wiki'].include?(Tilt::CreoleTemplate)
+    end
+
     test "compiles and evaluates the template on #render" do
       template = Tilt::CreoleTemplate.new { |t| "= Hello World!" }
       assert_equal "<h1>Hello World!</h1>", template.render

test/tilt_wikiclothtemplate_test.rb

@@ -0,0 +1,32 @@
+require 'contest'
+require 'tilt'
+
+begin
+  require 'wikicloth'
+
+  class WikiClothTemplateTest < Test::Unit::TestCase
+    test "is registered for '.mediawiki' files" do
+      assert_equal Tilt::WikiClothTemplate, Tilt['test.mediawiki']
+    end
+
+    test "is registered for '.mw' files" do
+      assert_equal Tilt::WikiClothTemplate, Tilt['test.mw']
+    end
+
+    test "is registered for '.wiki' files" do
+      assert_equal Tilt::WikiClothTemplate, Tilt['test.wiki']
+    end
+
+    test "compiles and evaluates the template on #render" do
+      template = Tilt::WikiClothTemplate.new { |t| "= Hello World! =" }
+      assert_match /<h1>.*Hello World!.*<\/h1>/, template.render
+    end
+
+    test "can be rendered more than once" do
+      template = Tilt::WikiClothTemplate.new { |t| "= Hello World! =" }
+      3.times { assert_match /<h1>.*Hello World!.*<\/h1>/, template.render }
+    end
+  end
+rescue LoadError => boom
+  warn "Tilt::WikiClothTemplate (disabled)\n"
+end