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Update Tilt to 1fdc1bf

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This commit is contained in:
Simon Rozet 2009-11-05 02:41:06 +01:00
parent 6d8b333af4
commit f3755308b9
1 changed files with 126 additions and 29 deletions
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155
lib/sinatra/tilt.rb
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@ -1,16 +1,24 @@
module Tilt
VERSION = '0.3'
@template_mappings = {}
# Hash of template path pattern => template implementation
# class mappings.
def self.mappings
@template_mappings
end
# Register a template implementation by file extension.
def self.register(ext, template_class)
ext = ext.sub(/^\./, '')
@template_mappings[ext.downcase] = template_class
ext = ext.to_s.sub(/^\./, '')
mappings[ext.downcase] = template_class
end
# Create a new template for the given file using the file's extension
# to determine the the template mapping.
def self.new(file, line=nil, options={}, &block)
if template_class = self[File.basename(file)]
if template_class = self[file]
template_class.new(file, line, options, &block)
else
fail "No template engine registered for #{File.basename(file)}"
@ -19,15 +27,24 @@ module Tilt
# Lookup a template class given for the given filename or file
# extension. Return nil when no implementation is found.
def self.[](filename)
ext = filename.to_s.downcase
until ext.empty?
return @template_mappings[ext] if @template_mappings.key?(ext)
ext = ext.sub(/^[^.]*\.?/, '')
def self.[](file)
if @template_mappings.key?(pattern = file.to_s.downcase)
@template_mappings[pattern]
elsif @template_mappings.key?(pattern = File.basename(pattern))
@template_mappings[pattern]
else
while !pattern.empty?
if @template_mappings.key?(pattern)
return @template_mappings[pattern]
else
pattern = pattern.sub(/^[^.]*\.?/, '')
end
end
nil
end
nil
end
# Base class for template implementations. Subclasses must implement
# the #compile! method and one of the #evaluate or #template_source
# methods.
@ -52,26 +69,44 @@ module Tilt
# file is nil, a block is required.
def initialize(file=nil, line=1, options={}, &block)
raise ArgumentError, "file or block required" if file.nil? && block.nil?
options, line = line, 1 if line.is_a?(Hash)
@file = file
@line = line || 1
@options = options || {}
@reader = block || lambda { |t| File.read(file) }
end
# Render the template in the given scope with the locals specified. If a
# block is given, it is typically available within the template via
# +yield+.
def render(scope=Object.new, locals={}, &block)
# Load template source and compile the template. The template is
# loaded and compiled the first time this method is called; subsequent
# calls are no-ops.
def compile
if @data.nil?
@data = @reader.call(self)
compile!
end
end
# Render the template in the given scope with the locals specified. If a
# block is given, it is typically available within the template via
# +yield+.
def render(scope=Object.new, locals={}, &block)
compile
evaluate scope, locals || {}, &block
end
# The basename of the template file.
def basename(suffix='')
File.basename(file, suffix) if file
end
# The template file's basename with all extensions chomped off.
def name
basename.split('.', 2).first if basename
end
# The filename used in backtraces to describe the template.
def eval_file
@file || '(__TEMPLATE__)'
file || '(__TEMPLATE__)'
end
protected
@ -107,8 +142,10 @@ module Tilt
end
def require_template_library(name)
warn "WARN: loading '#{name}' library in a non thread-safe way; " +
"explicit require '#{name}' suggested."
if Thread.list.size > 1
warn "WARN: tilt autoloading '#{name}' in a non thread-safe way; " +
"explicit require '#{name}' suggested."
end
require name
end
end
@ -129,8 +166,10 @@ module Tilt
end
end
# Template Implementations ================================================
# The template source is evaluated as a Ruby string. The #{} interpolation
# syntax can be used to generated dynamic output.
class StringTemplate < Template
@ -144,15 +183,13 @@ module Tilt
end
register 'str', StringTemplate
# ERB template implementation. See:
# http://www.ruby-doc.org/stdlib/libdoc/erb/rdoc/classes/ERB.html
#
# It's suggested that your program require 'erb' at load
# time when using this template engine.
class ERBTemplate < Template
def compile!
require_template_library 'erb' unless defined?(::ERB)
@engine = ::ERB.new(data, nil, nil, '@_out_buf')
@engine = ::ERB.new(data, options[:safe], options[:trim], '@_out_buf')
end
def template_source
@ -188,11 +225,21 @@ module Tilt
end
%w[erb rhtml].each { |ext| register ext, ERBTemplate }
# Erubis template implementation. See:
# http://www.kuwata-lab.com/erubis/
class ErubisTemplate < ERBTemplate
def compile!
require_template_library 'erubis' unless defined?(::Erubis)
Erubis::Eruby.class_eval(%Q{def add_preamble(src) src << "@_out_buf = _buf = '';" end})
@engine = ::Erubis::Eruby.new(data, options)
end
end
register 'erubis', ErubisTemplate
# Haml template implementation. See:
# http://haml.hamptoncatlin.com/
#
# It's suggested that your program require 'haml' at load
# time when using this template engine.
class HamlTemplate < Template
def compile!
require_template_library 'haml' unless defined?(::Haml::Engine)
@ -210,13 +257,11 @@ module Tilt
end
register 'haml', HamlTemplate
# Sass template implementation. See:
# http://haml.hamptoncatlin.com/
#
# Sass templates do not support object scopes, locals, or yield.
#
# It's suggested that your program require 'sass' at load
# time when using this template engine.
class SassTemplate < Template
def compile!
require_template_library 'sass' unless defined?(::Sass::Engine)
@ -234,11 +279,9 @@ module Tilt
end
register 'sass', SassTemplate
# Builder template implementation. See:
# http://builder.rubyforge.org/
#
# It's suggested that your program require 'builder' at load
# time when using this template engine.
class BuilderTemplate < Template
def compile!
require_template_library 'builder' unless defined?(::Builder)
@ -261,6 +304,7 @@ module Tilt
end
register 'builder', BuilderTemplate
# Liquid template implementation. See:
# http://liquid.rubyforge.org/
#
@ -281,6 +325,7 @@ module Tilt
end
register 'liquid', LiquidTemplate
# Discount Markdown implementation.
class RDiscountTemplate < Template
def compile!
@ -293,5 +338,57 @@ module Tilt
end
end
register 'markdown', RDiscountTemplate
register 'md', RDiscountTemplate
# Mustache is written and maintained by Chris Wanstrath. See:
# http://github.com/defunkt/mustache
#
# When a scope argument is provided to MustacheTemplate#render, the
# instance variables are copied from the scope object to the Mustache
# view.
class MustacheTemplate < Template
attr_reader :engine
# Locates and compiles the Mustache object used to create new views. The
def compile!
require_template_library 'mustache' unless defined?(::Mustache)
# Set the Mustache view namespace if we can
Mustache.view_namespace = options[:namespace]
# Figure out which Mustache class to use.
@engine = options[:view] || Mustache.view_class(name)
# set options on the view class
options.each do |key, value|
next if %w[view namespace mustaches].include?(key.to_s)
@engine.send("#{key}=", value) if @engine.respond_to? "#{key}="
end
end
def evaluate(scope=nil, locals={}, &block)
# Create a new instance for playing with
instance = @engine.new
# Copy instance variables from scope to the view
scope.instance_variables.each do |name|
instance.instance_variable_set(name, scope.instance_variable_get(name))
end
# Locals get added to the view's context
locals.each do |local, value|
instance[local] = value
end
# If we're passed a block it's a subview. Sticking it in yield
# lets us use {{yield}} in layout.html to render the actual page.
instance[:yield] = block.call if block
instance.template = data unless instance.compiled?
instance.to_html
end
end
register 'mustache', MustacheTemplate
end