markdown to textile converter another version without radeox

markdown_to_textile.groovy

//
// markdown から textile への変換だけする
//


import java.util.regex.*


class Conv {

	def br = System.getProperty('line.separator')
	
	
	def getNoteBody = {
			def out = ''<<''
			def noteHeaderEnd=false
			new StringReader(it).each{
				if( noteHeaderEnd==false && (it =~ /^#[^#]/).find() ){ noteHeaderEnd=true }
				if( noteHeaderEnd==true ){ out << it << br }
			}
			out.toString()
	}
	
	
	
	def toTextile = { line->
	
		def m1 = (line =~ /^(.*)<(http.*?)>(.*)$/)
		if( m1.find() ){
			line = "${m1.group(1)}[${m1.group(2)}]${m1.group(3)}"
		}
	
		line = line.replaceAll(/^#### /,'h4. ')
		line = line.replaceAll(/^### /, 'h3. ')
		line = line.replaceAll(/^## /,  'h2. ')
		line = line.replaceAll(/^# /,   'h1. ')
	
		line = line.replaceAll(/^- /,   '* ')
		line = line.replaceAll(/^    - /,   '** ')
		line = line.replaceAll(/^        - /,   '*** ')
		line = line.replaceAll(/^            - /,   '**** ')
	
		line = line.replaceAll(/^1. /,   '# ')
		line = line.replaceAll(/^    1. /,   '## ')
		line = line.replaceAll(/^        1. /,   '### ')
		line = line.replaceAll(/^            1. /,   '#### ')
		
		line
	}


	void convert(File inputFile,File outputFile){
		
		def text = inputFile.getText('UTF-8')
		text = processString(text)

		def w = outputFile.newWriter('UTF-8')
		w.print text
		w.close()
	}

	String processString(String text){

		text = getNoteBody(text)
		
		def out = ''<<''
		boolean inCodeBlock=false
		
		new StringReader(text).each{ line->
			boolean onCodeMacro=false
		
			def pat = Pattern.compile('^\\{code\\}')
			def m1 = pat.matcher(line)
		
			if( inCodeBlock==false ){
				if( m1.find() ){
					inCodeBlock=true
					onCodeMacro=true
				}
			}
			else{
				if( m1.find() ){
					inCodeBlock=false
					onCodeMacro=true
				}
			}
		
			if( onCodeMacro )  out << line << br 
			else {
				if( inCodeBlock ){
					out << line << br
				}
				else{
					out << toTextile(line) << br
				}
			}
		}

		out.toString()
	}
}	



def encoding      = 'UTF-8'

def inputFile = new File(args[0])
def outputFile = new File(args[1])
def content = inputFile.getText(encoding)
def toTextile = { myContent-> new Conv().processString(myContent) }
outputFile.setText( toTextile(content),encoding )