From c793684d4cabaeb0f2e577ff8a3a57752a94c4fd Mon Sep 17 00:00:00 2001
From: Josh Susser and Avdi Grimm <avdi+josh@avdi.org>
Date: Thu, 16 May 2013 01:19:34 -0400
Subject: [PATCH] Replace exception used for flow control with idiomatic
 throw/catch.

---
 lib/pretty_text.rb | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/lib/pretty_text.rb b/lib/pretty_text.rb
index 623adec9cd0..583e3cc3f96 100644
--- a/lib/pretty_text.rb
+++ b/lib/pretty_text.rb
@@ -235,8 +235,6 @@ module PrettyText
 
   class ExcerptParser < Nokogiri::XML::SAX::Document
 
-    class DoneException < StandardError; end
-
     attr_reader :excerpt
 
     def initialize(length,options)
@@ -249,10 +247,8 @@ module PrettyText
     def self.get_excerpt(html, length, options)
       me = self.new(length,options)
       parser = Nokogiri::HTML::SAX::Parser.new(me)
-      begin
+      catch(:done) do
         parser.parse(html) unless html.nil?
-      rescue DoneException
-        # we are done
       end
       me.excerpt
     end
@@ -303,7 +299,7 @@ module PrettyText
         @excerpt << encode.call(string[0..length]) if truncate
         @excerpt << "&hellip;"
         @excerpt << "</a>" if @in_a
-        raise DoneException.new
+        throw :done
       end
       @excerpt << encode.call(string)
       @current_length += string.length if count_it