From a8eae4545cd08491ac0f705d7a0af7202531bbe4 Mon Sep 17 00:00:00 2001
From: aamine <aamine@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 22 Sep 2004 05:22:50 +0000
Subject: * parse.y [ripper]: on__scan event removed. * parse.y [ripper]: event
 name is changed: on__XXX -> on_XXX. * ext/ripper/eventids2.c: ditto. *
 ext/ripper/ripper.rb.in: ditto. * ext/ripper/lib/ripper.rb: sync with
 ripper.rb.in. * ext/ripper/lib/ripper/tokenizer: ditto. *
 ext/ripper/lib/ripper/filter: new file. * sample/ripper/colorize.rb: new
 file. * sample/ripper/strip-comment.rb: new file.

git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@6952 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 sample/ripper/colorize.rb      | 30 ++++++++++++++++++++++++++++++
 sample/ripper/strip-comment.rb | 19 +++++++++++++++++++
 2 files changed, 49 insertions(+)
 create mode 100644 sample/ripper/colorize.rb
 create mode 100644 sample/ripper/strip-comment.rb

(limited to 'sample')

diff --git a/sample/ripper/colorize.rb b/sample/ripper/colorize.rb
new file mode 100644
index 000000000..505e75701
--- /dev/null
+++ b/sample/ripper/colorize.rb
@@ -0,0 +1,30 @@
+require 'ripper/filter'
+
+class ColorizeFilter < Ripper::Filter
+  def on_default(event, tok, f)
+    f << escape(tok)
+  end
+
+  def on_comment(tok, f)
+    f << %Q[<span class="comment">#{escape(tok)}</span>]
+  end
+
+  def on_tstring_content(tok, f)
+    f << %Q[<span class="string">#{escape(tok)}</span>]
+  end
+
+  ESC = {
+    '&' => '&amp;',
+    '<' => '&lt;',
+    '>' => '&gt;'
+  }
+
+  def escape(str)
+    tbl = ESC
+    str.gsub(/[&<>]/) {|ch| tbl[ch] }
+  end
+end
+
+if $0 == __FILE__
+  ColorizeFilter.new(ARGF).parse($stdout)
+end
diff --git a/sample/ripper/strip-comment.rb b/sample/ripper/strip-comment.rb
new file mode 100644
index 000000000..bd26b6a37
--- /dev/null
+++ b/sample/ripper/strip-comment.rb
@@ -0,0 +1,19 @@
+# $Id$
+
+require 'ripper/filter'
+
+class CommentStripper < Ripper::Filter
+  def CommentStripper.strip(src)
+    new(src).parse(nil)
+  end
+
+  def on_default(event, token, data)
+    print token
+  end
+
+  def on_comment(token, data)
+    puts
+  end
+end
+
+CommentStripper.strip(ARGF)
-- 
cgit