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@@ -15,8 +15,8 @@ module ActionController
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   # In addition to providing +url_for+, named routes are also accessible after
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   # including UrlWriter.
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   module UrlWriter
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-    # The default options for urls written by this writer. Typically a :host pair
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-    # is provided.
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+    # The default options for urls written by this writer. Typically a <tt>:host</tt>
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+    # pair is provided.
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     mattr_accessor :default_url_options
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     self.default_url_options = {}
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@@ -29,16 +29,19 @@ module ActionController
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     # Generate a url based on the options provided, default_url_options and the
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     # routes defined in routes.rb.  The following options are supported:
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     #
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-    # * <tt>:only_path</tt> If true, the relative url is returned. Defaults to false.
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+    # * <tt>:only_path</tt> If true, the relative url is returned. Defaults to +false+.
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     # * <tt>:protocol</tt> The protocol to connect to. Defaults to 'http'.
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-    # * <tt>:host</tt> Specifies the host the link should be targetted at. If <tt>:only_path</tt> is false, this option must be
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-    #   provided either explicitly, or via default_url_options.
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+    # * <tt>:host</tt> Specifies the host the link should be targetted at.
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+    #   If <tt>:only_path</tt> is false, this option must be
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+    #   provided either explicitly, or via +default_url_options+.
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     # * <tt>:port</tt> Optionally specify the port to connect to.
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     # * <tt>:anchor</tt> An anchor name to be appended to the path.
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-    # * <tt>:skip_relative_url_root</tt> If true, the url is not constructed using the relative_url_root set in <tt>ActionController::AbstractRequest.relative_url_root</tt>.
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+    # * <tt>:skip_relative_url_root</tt> If true, the url is not constructed using the
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+    #   +relative_url_root+ set in ActionController::AbstractRequest.relative_url_root.
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     # * <tt>:trailing_slash</tt> If true, adds a trailing slash, as in "/archive/2009/"
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     #
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-    # Any other key(:controller, :action, etc...) given to <tt>url_for</tt> is forwarded to the Routes module.
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+    # Any other key (<tt>:controller</tt>, <tt>:action</tt>, etc.) given to
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+    # +url_for+ is forwarded to the Routes module.
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     #
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     # Examples:
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     #