[英]matching a string with regex scala
我写了以下函数:
import scala.util.matching.Regex
val COL1 = "COL1"
val COL2 = "COL2"
val COL3 = "COL3"
val COL4 = "COL4"
val COL5 = "COL5"
val reg = ".+-([\w\d]{3})-([\d\w]{3})-([\d\w]{3})-([\w]+)$-([\w]+)".r.unanchored
val dataExtraction: String => Map[String, String] = {
string: String => {
string match {
case reg(col1, col2, col3, col4, col5) =>
Map(COL1 -> col1, COL2 -> col2, COL3 -> col3, COL4 -> col4 ,COL5 -> col5 )
case _ => Map(COL1 -> "", COL2 -> "", COL3 -> "", COL4 -> "" ,COL5 -> "" )
}
}
}
应该解析“ dep-gll-cde3-l4-result”或“ cde3-gll-dep-l4-result”这样的字符串
任何想法如何定义解析这两个的正则表达式
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