Latex encoder from Redminelatex-encoder

1 files changed, 44 insertions, 0 deletions

diff --git a/lib/coderay/encoders/latex.rb b/lib/coderay/encoders/latex.rb
new file mode 100644
index 0000000..5a6e309
--- /dev/null
+++ b/lib/coderay/encoders/latex.rb
@@ -0,0 +1,44 @@
+module CodeRay
+module Encoders
+
+  class Latex < Encoder
+
+    include Streamable
+    register_for :latex
+
+    FILE_EXTENSION = 'tex'
+    
+    ALLTT_ESCAPE = {  #:nodoc:
+      '{' => '\lb',
+      '}' => '\rb',
+      '\\' => '\bs',
+    }
+
+    HTML_ESCAPE_PATTERN = /[\\{}]/
+
+  protected
+    
+    def text_token text, kind
+      if text =~ /#{HTML_ESCAPE_PATTERN}/o
+        text = text.gsub(/#{HTML_ESCAPE_PATTERN}/o) { |m| @HTML_ESCAPE[m] }
+      end
+      k = Tokens::ClassOfKind[kind]
+      if k == :NO_HIGHLIGHT
+        text
+      else
+        "\\CR#{k}{#{text}}"
+      end
+    end
+
+    def open_token kind
+      "\\CR#{Tokens::ClassOfKind[kind]}{"
+    end
+
+    def close_token kind
+      "}"
+    end
+
+  end
+
+end
+end