package oca.go

def srcPath = "D:/my/go/sgf/9x9" // path where the sgf files are
new File(srcPath).eachFile { File file ->
if (file.getName().endsWith(".sgf")) {
def content = file.getText()
def props = content.split(";")[1].replaceAll("\n","")

def pw = findValue("PW", props)
def wr = findValue("WR", props)
def pb = findValue("PB", props)
def br = findValue("BR", props)
def ev = findValue("EV", props)
def ro = findValue("RO", props)
def dt = findValue("DT", props)
// ...
// ...
// do what ever you want here
def newName = "$pw $wr VS $pb $br - $ev $ro - $dt"
file.renameTo(newName+".sgf");
}
}

def findValue(prop,props ) {
def m = props =~ /.*/+prop+/\[(.*?)\]/
return (m.matches()) ? m[0][1] : "___"
}