Autolink URLs like http://localhost:8000 (anything that has a schema like http:// and looks like a URL), in addition to internet URLs.

app/models/chunks/uri.rb

@@ -19,8 +19,7 @@ class URIChunk < Chunk::Abstract
   include URI::REGEXP::PATTERN
 
   # this condition is to get rid of pesky warnings in tests
-  unless defined? URI_CHUNK_CONSTANTS_DEFINED
-    URI_CHUNK_CONSTANTS_DEFINED = true
+  unless defined? URIChunk::INTERNET_URI_REGEXP
 
     GENERIC = '(?:aero|biz|com|coop|edu|gov|info|int|mil|museum|name|net|org)'
     COUNTRY = '(?:au|at|be|ca|ch|de|dk|fr|hk|in|ir|it|jp|nl|no|pt|ru|se|sw|tv|tw|uk|us)'
@@ -45,27 +44,28 @@ class URIChunk < Chunk::Abstract
     FRAGMENT = "#{URIC_NO_ENDING}*"
 
     # DOMLABEL is defined in the ruby uri library, TLDS is defined above
-    FULL_HOSTNAME = "(?:#{DOMLABEL}\\.)+#{TLDS}" 
+    INTERNET_HOSTNAME = "(?:#{DOMLABEL}\\.)+#{TLDS}" 
 
     # Correct a typo bug in ruby 1.8.x lib/uri/common.rb 
     PORT = '\\d*'
 
-    URI_PATTERN =
+    INTERNET_URI =
         "(?:(#{SCHEME}):/{0,2})?" + # Optional scheme:        (\1)
         "(?:(#{USERINFO})@)?" +     # Optional userinfo@      (\2)
-        "(#{FULL_HOSTNAME})" +      # Mandatory hostname      (\3)
+        "(#{INTERNET_HOSTNAME})" +  # Mandatory hostname      (\3)
         "(?::(#{PORT}))?" +         # Optional :port          (\4)
         "(#{ABS_PATH})?"  +         # Optional absolute path  (\5)
         "(?:\\?(#{QUERY}))?" +      # Optional ?query         (\6)
         "(?:\\#(#{FRAGMENT}))?"     # Optional #fragment      (\7)
+
+    TEXTILE_SYNTAX_PREFIX = '(!)?'
+  
+    INTERNET_URI_REGEXP = Regexp.new(TEXTILE_SYNTAX_PREFIX + INTERNET_URI, Regexp::EXTENDED, 'N')
+
   end
 
-  TEXTILE_SYNTAX_PREFIX = '(!)?'
-
-  URI_PATTERN_REGEXP = Regexp.new(TEXTILE_SYNTAX_PREFIX + URI_PATTERN, Regexp::EXTENDED, 'N')
-
   def self.pattern
-    URI_PATTERN_REGEXP
+    INTERNET_URI_REGEXP
   end
 
   attr_reader :uri, :scheme, :user, :host, :port, :path, :query, :fragment, :link_text
@@ -149,3 +149,31 @@ class URIChunk < Chunk::Abstract
   end
 
 end
+
+# uri with mandatory scheme but less restrictive hostname, like
+# http://localhost:2500/blah.html
+class LocalURIChunk < URIChunk
+
+  unless defined? LocalURIChunk::LOCAL_URI_REGEXP
+    # hostname can be just a simple word like 'localhost'
+    ANY_HOSTNAME = "(?:#{DOMLABEL}\\.)*#{TOPLABEL}\\.?"
+    
+    # The basic URI expression as a string
+    # Scheme and hostname are mandatory
+    LOCAL_URI =
+           "(?:(#{SCHEME})://)+" +  # Mandatory scheme://     (\1)
+           "(?:(#{USERINFO})@)?" +  # Optional userinfo@      (\2)
+           "(#{ANY_HOSTNAME})" +    # Mandatory hostname      (\3)
+           "(?::(#{PORT}))?" +      # Optional :port          (\4)
+           "(#{ABS_PATH})?"  +      # Optional absolute path  (\5)
+           "(?:\\?(#{QUERY}))?" +   # Optional ?query         (\6)
+           "(?:\\#(#{FRAGMENT}))?"  # Optional #fragment      (\7)
+  
+    LOCAL_URI_REGEXP = Regexp.new(TEXTILE_SYNTAX_PREFIX + LOCAL_URI, Regexp::EXTENDED, 'N')
+  end
+
+  def self.pattern
+    LOCAL_URI_REGEXP
+  end
+
+end

app/models/wiki_content.rb

@@ -39,7 +39,9 @@ require 'chunks/nowiki'
 # UPDATED: 22nd May 2004
 class WikiContent < String
 
-  PRE_ENGINE_ACTIONS  = [ NoWiki, Category, Include, URIChunk, WikiChunk::Link, WikiChunk::Word ] 
+  PRE_ENGINE_ACTIONS  = [ NoWiki, Category, Include, 
+                          URIChunk, LocalURIChunk,
+                          WikiChunk::Link, WikiChunk::Word ] 
   POST_ENGINE_ACTIONS = [ Literal::Pre, Literal::Tags ]
   DEFAULT_OPTS = {
     :pre_engine_actions  => PRE_ENGINE_ACTIONS,

test/test_helper.rb

@@ -36,37 +36,32 @@ end
 # This module is to be included in unit tests that involve matching chunks.
 # It provides a easy way to test whether a chunk matches a particular string
 # and any the values of any fields that should be set after a match.
+class ContentStub < String
+  attr_reader :chunks, :content
+  def initialize(str)
+    super
+    @chunks = []
+  end
+end
+
 module ChunkMatch
 
   # Asserts a number of tests for the given type and text.
-  def match(type, test_text, expected)
-	pattern = type.pattern
-    assert_match(pattern, test_text)
-    pattern =~ test_text   # Previous assertion guarantees match
-    chunk = type.new($~)
+  def match(chunk_type, test_text, expected_chunk_state)
+    if chunk_type.respond_to? :pattern
+      assert_match(chunk_type.pattern, test_text)
+    end
+
+    content = ContentStub.new(test_text)
+	chunk_type.apply_to(content)
 
     # Test if requested parts are correct.
-    for method_sym, value in expected do
-      assert_respond_to(chunk, method_sym)
-      assert_equal(value, chunk.method(method_sym).call, "Checking value of '#{method_sym}'")
+    expected_chunk_state.each_pair do |a_method, expected_value|
+      assert content.chunks.last.kind_of?(chunk_type)
+      assert_respond_to(content.chunks.last, a_method)
+      assert_equal(expected_value, content.chunks.last.send(a_method.to_sym), 
+          "Wrong #{a_method} value")
     end
   end
 end
 
-
-module ActionController
-  class TestResponse
-    def binary_content
-        sio = StringIO.new
-        begin 
-          $stdout = sio
-          body.call
-        ensure
-          $stdout = STDOUT
-        end
-        
-        sio.rewind
-        sio.read
-    end
-  end
-end

test/unit/uri_test.rb

@@ -7,8 +7,9 @@ class URITest < Test::Unit::TestCase
   include ChunkMatch
 
   def test_non_matches
-    assert_no_match(URIChunk.pattern, 'There is no URI here') 
-    assert_no_match(URIChunk.pattern, 'One gemstone is the garnet:reddish in colour, like ruby') 
+    assert_conversion_does_not_apply(URIChunk, 'There is no URI here')
+    assert_conversion_does_not_apply(URIChunk, 
+        'One gemstone is the garnet:reddish in colour, like ruby') 
   end
 
   def test_simple_uri
@@ -110,9 +111,9 @@ class URITest < Test::Unit::TestCase
   end
 
   def test_non_uri
-	assert_no_match(URIChunk.pattern, 'httpd.conf')
-	assert_no_match(URIChunk.pattern, 'libproxy.so')
-	assert_no_match(URIChunk.pattern, 'ld.so.conf')
+    assert_conversion_does_not_apply URIChunk, 'httpd.conf'
+	assert_conversion_does_not_apply URIChunk, 'libproxy.so'
+	assert_conversion_does_not_apply URIChunk, 'ld.so.conf'
   end
 
   def test_uri_in_text
@@ -152,4 +153,27 @@ class URITest < Test::Unit::TestCase
         :query => 'arg=val,')
   end
   
+  def test_local_urls
+    # normal
+    match(LocalURIChunk, 'http://perforce:8001/toto.html', 
+          :scheme => 'http', :host => 'perforce', 
+          :port => '8001', :link_text => 'http://perforce:8001/toto.html')
+
+    # in parentheses
+    match(LocalURIChunk, 'URI (http://localhost:2500) in brackets', 
+          :host => 'localhost', :port => '2500')
+    match(LocalURIChunk, 'because (as shown at http://perforce:8001) the results', 
+          :host => 'perforce', :port => '8001')
+    match(LocalURIChunk, 
+      'A wiki (http://localhost:2500/wiki.cgi?WhatIsWiki) page', 
+          :scheme => 'http', :host => 'localhost', :path => '/wiki.cgi', 
+          :port => '2500', :query => 'WhatIsWiki')
+  end
+
+  def assert_conversion_does_not_apply(chunk_type, str)
+    processed_str = str.dup
+    URIChunk.apply_to(processed_str)
+    assert_equal(str, processed_str)
+  end
+
 end