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git-svn-id: svn://hamptoncatlin.com/haml/trunk@1 7063305b-7217-0410-af8c-cdc13e5119b9
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hcatlin
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Jun 30, 2006
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Haml | ||
==== | ||
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Description goes here |
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require 'rake' | ||
require 'rake/testtask' | ||
require 'rake/rdoctask' | ||
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desc 'Default: run unit tests.' | ||
task :default => :test | ||
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desc 'Test the haml plugin.' | ||
Rake::TestTask.new(:test) do |t| | ||
t.libs << 'lib' | ||
t.pattern = 'test/**/*_test.rb' | ||
t.verbose = true | ||
end | ||
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desc 'Generate documentation for the haml plugin.' | ||
Rake::RDocTask.new(:rdoc) do |rdoc| | ||
rdoc.rdoc_dir = 'rdoc' | ||
rdoc.title = 'Haml' | ||
rdoc.options << '--line-numbers' << '--inline-source' | ||
rdoc.rdoc_files.include('README') | ||
rdoc.rdoc_files.include('lib/**/*.rb') | ||
end |
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require 'haml' | ||
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ActionView::Base.register_template_handler("haml", HAML::TemplateEngine) |
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# No Install needed! |
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module HAML | ||
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class TemplateEngine | ||
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def initialize(base) | ||
@base = base | ||
@tab_index = ["", " "] | ||
#pre-build the tab index up to 9 | ||
10.times do |num| | ||
@tab_index << @tab_index.last + " " | ||
end | ||
end | ||
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def render(template = "", locals = {}) | ||
@pony_land = HappyMagicPonyLand.new(@base, locals) | ||
@result = "" | ||
@to_close_queue = [] | ||
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#main loop handling line reading | ||
#and interpretation | ||
template.each_line do |line| | ||
count, line = count_levels(line) | ||
if count <= @to_close_queue.size | ||
close_tag | ||
end | ||
case line.first | ||
when '.', '#' | ||
render_div(line) | ||
when '<' | ||
render_tag_or_line(line) | ||
when '/' | ||
render_comment(line) | ||
when '=' | ||
add template_eval(line[1, line.length]) | ||
else | ||
add line | ||
end | ||
end | ||
puts "closing... " + @to_close_queue.inspect | ||
@to_close_queue.each { close_tag } | ||
@result | ||
end | ||
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def add(line) | ||
@result << tabify(@to_close_queue.size) + line + "\n" | ||
end | ||
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def tabify(times) | ||
@tab_index[times] | ||
end | ||
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def open_tag(name, attributes = {}) | ||
attribute_array = [] | ||
attributes.each do |attr_name, val| | ||
attribute_array << attr_name.to_s + "='" + val + "'" | ||
end | ||
add "<#{name.to_s}#{attribute_array.empty? ? "" : " "}#{attribute_array.join(" ")}>" | ||
@to_close_queue.push(name) | ||
end | ||
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def close_tag | ||
add "</#{@to_close_queue.pop}>" | ||
end | ||
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def render_div(line) | ||
open_tag("div", parse_attributes(line)) | ||
end | ||
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def render_comment(line) | ||
add "<!-- #{line} -->" | ||
end | ||
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def render_tag_or_line(line) | ||
line.scan(/[<]([a-zA-Z]+)([a-zA-Z.\#]*)([=]?)([^\n]*)/).each do |tag_name, attributes, action, value| | ||
puts tag_name | ||
open_tag(tag_name, parse_attributes(attributes)) | ||
unless value.empty? | ||
if(action == '=') | ||
add(value) | ||
else | ||
add(template_eval(value)) | ||
end | ||
close_tag | ||
end | ||
end | ||
end | ||
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def template_eval(code) | ||
@pony_land.instance_eval(code) || "" | ||
end | ||
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def parse_attributes(list) | ||
attributes = {} | ||
list.scan(/([#.])([-a-zA-Z_()]+)/).each do |type, property| | ||
case type | ||
when "." | ||
attributes[:class] = property | ||
when "#" | ||
attributes[:id] = property | ||
end | ||
end | ||
attributes | ||
end | ||
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def count_levels(line) | ||
[line.index(/[^ ]/), line.strip] | ||
end | ||
end | ||
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class HappyMagicPonyLand | ||
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def initialize(base, attributes = {}) | ||
@_action_view = base | ||
@table = attributes | ||
end | ||
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def method_missing(name, *args, &block) | ||
name_as_string = name.to_s | ||
if name_as_string.last == "=" | ||
@table[name_as_string.scan(/[^=]+/).first.to_sym] = args.first | ||
elsif @table.has_key? name.to_sym | ||
@table[name.to_sym] | ||
elsif @_action_view.respond_to? name | ||
@_action_view.send(name, *args, &block) | ||
else | ||
nil | ||
end | ||
end | ||
end | ||
end |
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module HAML | ||
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end |
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# desc "Explaining what the task does" | ||
# task :haml do | ||
# # Task goes here | ||
# end |
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require 'test/unit' | ||
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class HamlTest < Test::Unit::TestCase | ||
# Replace this with your real tests. | ||
def test_this_plugin | ||
flunk | ||
end | ||
end |