groovy簡明教程(二)正則表示式
阿新 • • 發佈:2019-02-12
4.正則表示式
groovy吸取了javascript的優點,用後斜線表示正則表示式,避免了java中多次寫反斜槓轉義。並提供了3個操作符: 寫道 =~ 查詢;==~ 匹配;
~String 模式;
str = 'god is a gril, believe or not?' matcher = str =~ /i\w/ // partily match? true matcher.each { m -> print "$m, " //output: is, il, ie, } println str ==~ /^g.+?$/ // full match ? true println str.replaceFirst(/\bgr.+l\b/, 'boy') // output: god is a boy, believe or not? reg = ~/^g/ // compiled regular express println str.replaceFirst(reg, 'G') // output: God is a gril, believe or not? (~/\d{4}-\d{2}-\d{2}/).isCase('2013-06-19') // match the regula or not? true strs = ['foo', 'bar', 'question', 'test'] strs.grep(~/.*e.*/) // result:[question, test] strs.each{ s -> switch(s) { case ~/f.*/: println "$s start with f"; break; // regula in switch case case ~/t.*/: println "$s start with t"; break; } }