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# RGen Framework
# (c) Martin Thiede, 2006
require 'rgen/template_language/template_container'
require 'rgen/template_language/template_helper'
module RGen
module TemplateLanguage
class DirectoryTemplateContainer
include TemplateHelper
def initialize(metamodel=nil, output_path=nil, parent=nil)
@containers = {}
@directoryContainers = {}
@parent = parent
@metamodel = metamodel
@output_path = output_path
end
def load(dir)
Dir.foreach(dir) { |f|
qf = dir+"/"+f
if !File.directory?(qf) && f =~ /^(.*)\.tpl$/
(@containers[$1] = TemplateContainer.new(@metamodel, @output_path, self,qf)).load
elsif File.directory?(qf) && f != "." && f != ".."
(@directoryContainers[f] = DirectoryTemplateContainer.new(@metamodel, @output_path, self)).load(qf)
end
}
end
def expand(template, *all_args)
if template =~ /^\//
if @parent
# pass to parent
@parent.expand(template, *all_args)
else
# this is root
_expand(template, *all_args)
end
elsif template =~ /^\.\.\/(.*)/
if @parent
# pass to parent
@parent.expand($1, *all_args)
else
raise "No parent directory for root"
end
else
_expand(template, *all_args)
end
end
# Set indentation string.
# Every generated line will be prependend with n times this string at an indentation level of n.
# Defaults to " " (3 spaces)
def indentString=(str)
@indentString = str
end
def indentString
@indentString || (@parent && @parent.indentString) || " "
end
private
def _expand(template, *all_args)
if template =~ /^\/?(\w+)::(\w.*)/
raise "Template not found: #{$1}" unless @containers[$1]
@containers[$1].expand($2, *all_args)
elsif template =~ /^\/?(\w+)\/(\w.*)/
raise "Template not found: #{$1}" unless @directoryContainers[$1]
@directoryContainers[$1].expand($2, *all_args)
else
raise "Invalid template name: #{template}"
end
end
end
end
end
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