111 lines
2.4 KiB
Ruby
111 lines
2.4 KiB
Ruby
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##
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## $Release: 2.6.5 $
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## copyright(c) 2006-2009 kuwata-lab.com all rights reserved.
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##
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require 'erubis/engine'
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require 'erubis/enhancer'
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module Erubis
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module JavaGenerator
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include Generator
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def self.supported_properties() # :nodoc:
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return [
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[:indent, '', "indent spaces (ex. ' ')"],
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[:buf, '_buf', "output buffer name"],
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[:bufclass, 'StringBuffer', "output buffer class (ex. 'StringBuilder')"],
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]
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end
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def init_generator(properties={})
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super
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@escapefunc ||= 'escape'
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@indent = properties[:indent] || ''
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@buf = properties[:buf] || '_buf'
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@bufclass = properties[:bufclass] || 'StringBuffer'
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end
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def add_preamble(src)
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src << "#{@indent}#{@bufclass} #{@buf} = new #{@bufclass}();"
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end
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def escape_text(text)
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@@table_ ||= { "\r"=>"\\r", "\n"=>"\\n", "\t"=>"\\t", '"'=>'\\"', "\\"=>"\\\\" }
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return text.gsub!(/[\r\n\t"\\]/) { |m| @@table_[m] } || text
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end
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def add_text(src, text)
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return if text.empty?
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src << (src.empty? || src[-1] == ?\n ? @indent : ' ')
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src << @buf << ".append("
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i = 0
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text.each_line do |line|
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src << "\n" << @indent << ' + ' if i > 0
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i += 1
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src << '"' << escape_text(line) << '"'
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end
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src << ");" << (text[-1] == ?\n ? "\n" : "")
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end
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def add_stmt(src, code)
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src << code
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end
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def add_expr_literal(src, code)
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src << @indent if src.empty? || src[-1] == ?\n
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code.strip!
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src << " #{@buf}.append(#{code});"
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end
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def add_expr_escaped(src, code)
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add_expr_literal(src, escaped_expr(code))
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end
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def add_expr_debug(src, code)
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code.strip!
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src << @indent if src.empty? || src[-1] == ?\n
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src << " System.err.println(\"*** debug: #{code}=\"+(#{code}));"
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end
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def add_postamble(src)
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src << "\n" if src[-1] == ?;
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src << @indent << "return " << @buf << ".toString();\n"
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#src << @indent << "System.out.print(" << @buf << ".toString());\n"
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end
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end
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##
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## engine for Java
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##
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class Ejava < Basic::Engine
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include JavaGenerator
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end
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class EscapedEjava < Ejava
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include EscapeEnhancer
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end
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#class XmlEjava < Ejava
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# include EscapeEnhancer
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#end
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class PI::Ejava < PI::Engine
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include JavaGenerator
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def init_converter(properties={})
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@pi = 'java'
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super(properties)
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end
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end
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end
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