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tag: v0.9.3
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require 'cgi'
require 'erb'
module ActionView
module Helpers
# This is poor man's Builder for the rare cases where you need to programmatically make tags but can't use Builder.
module TagHelper
include ERB::Util
# Examples:
# * <tt>tag("br") => <br /></tt>
# * <tt>tag("input", { "type" => "text"}) => <input type="text" /></tt>
def tag(name, options = {}, open = false)
"<#{name}#{tag_options(options)}" + (open ? ">" : " />")
end
# Examples:
# * <tt>content_tag("p", "Hello world!") => <p>Hello world!</p></tt>
# * <tt>content_tag("div", content_tag("p", "Hello world!"), "class" => "strong") => </tt>
# <tt><div class="strong"><p>Hello world!</p></div></tt>
def content_tag(name, content, options = {})
"<#{name}#{tag_options(options)}>#{content}</#{name}>"
end
# Starts a form tag that points the action to an url configured with <tt>url_for_options</tt> just like
# ActionController::Base#url_for.
def form_tag(url_for_options = {}, options = {}, *parameters_for_url)
html_options = { "method" => "post" }.merge(options)
if html_options[:multipart]
html_options["enctype"] = "multipart/form-data"
html_options.delete(:multipart)
end
html_options["action"] = url_for(url_for_options, *parameters_for_url)
tag("form", html_options, true)
end
alias_method :start_form_tag, :form_tag
# Outputs "</form>"
def end_form_tag
"</form>"
end
private
def tag_options(options)
unless options.empty?
" " + options.map { |key, value|
%(#{key}="#{html_escape(value)}")
}.sort.join(" ")
end
end
end
end
end
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