From 52f6fa0d0dbcf9244e93a16be7c6f685530b31b5 Mon Sep 17 00:00:00 2001
From: "Yann Esposito (Yogsototh)" <Yann.Esposito@gmail.com>
Date: Wed, 6 Jan 2010 12:34:12 +0100
Subject: [PATCH] ajout du plugin pour la coloration syntaxique

---
 lib/syntaxColorize.rb | 68 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 lib/syntaxColorize.rb

diff --git a/lib/syntaxColorize.rb b/lib/syntaxColorize.rb
new file mode 100644
index 000000000..79bcad200
--- /dev/null
+++ b/lib/syntaxColorize.rb
@@ -0,0 +1,68 @@
+module Nanoc3::Helpers
+
+  module SyntaxColorize
+
+    require 'nanoc3/helpers/capturing'
+    include Nanoc3::Helpers::Capturing
+
+    def syntax_colorize(lang, type=:ultraviolet, &block)
+      # Capture block
+      data = capture(&block)
+
+      # Remove whitespace
+      lines = data.split("\n")
+      min_indent = lines.inject(nil) do |memo, line|
+        next memo if line =~ /^\s*$/
+        next memo if line !~ /^(\s*)/
+        [ memo, $1.size ].compact.min
+      end
+      lines.each do |line|
+        line[0,min_indent] = ''
+      end
+      data = lines.join("\n")
+
+      # Process
+      case type
+      when :ultraviolet
+        begin
+          require 'uv'
+          if lang =~ /^(zsh|bash|sh|csh|shell)$/
+            lang='shell-unix-generic'
+          end
+          filtered_data = Uv.parse(data, 'xhtml', lang, false, 'twilight')
+        rescue LoadError
+          unless $_WARNED_ABOUT_ULTRAVIOLET
+            warn "WARNING: Couldn't load uv; please install the ultraviolet gem. This message will not appear again."
+          end
+          $_WARNED_ABOUT_ULTRAVIOLET = true
+
+          filtered_data = '<pre class="no-uv">' + h(data) + '</pre>'
+        end
+
+        # Convert to HTML
+        filtered_data = filtered_data.strip.sub(%r{/ ?>}, '>') # convert to HTML
+
+        # Add missing <code> in <pre>
+        filtered_data.sub!(/^\s*(<pre class="[^<]+">)\s*/) { |m| "#{m}<code>" }
+        filtered_data.sub!(/\s*(<\/pre>)\s*$/) { |m| "</code>#{m}" }
+      when :coderay
+        # Find filter
+        klass = Nanoc3::Filter.named(:coderay)
+        filter = klass.new(@item_rep.assigns)
+        
+        # Filter captured data
+        filtered_data = filter.run(data, :language => lang).strip
+      else
+        raise ArgumentError, "invalid type: #{type}"
+      end
+
+      # Append filtered data to buffer
+      buffer = eval('_erbout', block.binding)
+      buffer << '<pre><code>' if type == :coderay
+      buffer << filtered_data
+      buffer << '</code></pre>' if type == :coderay
+    end
+
+  end
+
+end