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##
## $Release:$
## $Copyright$
##
require 'erubis/engine'
require 'erubis/enhancer'
module Erubis
module JavaGenerator
include Generator
def self.supported_properties() # :nodoc:
return [
[:indent, '', "indent spaces (ex. ' ')"],
[:buf, '_buf', "output buffer name"],
[:bufclass, 'StringBuffer', "output buffer class (ex. 'StringBuilder')"],
]
end
def init_generator(properties={})
super
@escapefunc ||= 'escape'
@indent = properties[:indent] || ''
@buf = properties[:buf] || '_buf'
@bufclass = properties[:bufclass] || 'StringBuffer'
end
def add_preamble(src)
src << "#{@indent}#{@bufclass} #{@buf} = new #{@bufclass}();"
end
def escape_text(text)
@@table_ ||= { "\r"=>"\\r", "\n"=>"\\n", "\t"=>"\\t", '"'=>'\\"', "\\"=>"\\\\" }
return text.gsub!(/[\r\n\t"\\]/) { |m| @@table_[m] } || text
end
def add_text(src, text)
return if text.empty?
src << (src.empty? || src[-1] == ?\n ? @indent : ' ')
src << @buf << ".append("
i = 0
text.each_line do |line|
src << "\n" << @indent << ' + ' if i > 0
i += 1
src << '"' << escape_text(line) << '"'
end
src << ");" << (text[-1] == ?\n ? "\n" : "")
end
def add_stmt(src, code)
src << code
end
def add_expr_literal(src, code)
src << @indent if src.empty? || src[-1] == ?\n
code.strip!
src << " #{@buf}.append(#{code});"
end
def add_expr_escaped(src, code)
add_expr_literal(src, escaped_expr(code))
end
def add_expr_debug(src, code)
code.strip!
src << @indent if src.empty? || src[-1] == ?\n
src << " System.err.println(\"*** debug: #{code}=\"+(#{code}));"
end
def add_postamble(src)
src << "\n" if src[-1] == ?;
src << @indent << "return " << @buf << ".toString();\n"
#src << @indent << "System.out.print(" << @buf << ".toString());\n"
end
end
##
## engine for Java
##
class Ejava < Basic::Engine
include JavaGenerator
end
class EscapedEjava < Ejava
include EscapeEnhancer
end
#class XmlEjava < Ejava
# include EscapeEnhancer
#end
class PI::Ejava < PI::Engine
include JavaGenerator
def init_converter(properties={})
@pi = 'java'
super(properties)
end
end
end
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