JezK
Edit File: ejavascript.rb
## ## $Release: 2.7.0 $ ## copyright(c) 2006-2011 kuwata-lab.com all rights reserved. ## require 'erubis/engine' require 'erubis/enhancer' module Erubis module JavascriptGenerator include Generator def self.supported_properties() # :nodoc: list = [] #list << [:indent, '', "indent spaces (ex. ' ')"] #list << [:bufvar, '_buf', "output buffer variable name"] list << [:docwrite, true, "use 'document.write()' when true"] return list end def init_generator(properties={}) super @escapefunc ||= 'escape' @indent = properties[:indent] || '' @bufvar = properties[:bufvar] || '_buf' @docwrite = properties[:docwrite] != false # '!= false' will be removed in the next release end def add_preamble(src) src << "#{@indent}var #{@bufvar} = [];" end def escape_text(text) @@table_ ||= { "\r"=>"\\r", "\n"=>"\\n\\\n", "\t"=>"\\t", '"'=>'\\"', "\\"=>"\\\\" } return text.gsub!(/[\r\n\t"\\]/) { |m| @@table_[m] } || text end def add_indent(src, indent) src << (src.empty? || src[-1] == ?\n ? indent : ' ') end def add_text(src, text) return if text.empty? add_indent(src, @indent) src << @bufvar << '.push("' s = escape_text(text) if s[-1] == ?\n s[-2, 2] = '' src << s << "\");\n" else src << s << "\");" end end def add_stmt(src, code) src << code end def add_expr_literal(src, code) add_indent(src, @indent) code.strip! src << "#{@bufvar}.push(#{code});" end def add_expr_escaped(src, code) add_expr_literal(src, escaped_expr(code)) end def add_expr_debug(src, code) add_indent(src, @indent) code.strip! src << "alert(\"*** debug: #{code}=\"+(#{code}));" end def add_postamble(src) src << "\n" if src[-1] == ?; if @docwrite src << @indent << 'document.write(' << @bufvar << ".join(\"\"));\n" else src << @indent << @bufvar << ".join(\"\");\n" end end end ## ## engine for JavaScript ## class Ejavascript < Basic::Engine include JavascriptGenerator end class EscapedEjavascript < Ejavascript include EscapeEnhancer end #class XmlEjavascript < Ejavascript # include EscapeEnhancer #end class PI::Ejavascript < PI::Engine include JavascriptGenerator def init_converter(properties={}) @pi = 'js' super(properties) end end end