How to use lineend in positive lookahead?

Asked Feb 05 '19 at 10:15

Active Feb 05 '19 at 10:17

Viewed 42 times

In the following example, I want to match line 1, 2 and 5.

-STARTxxx-END
-STARTxxx-
-STARTxxx#END
-STARTxxx#
-STARTxxx

Using regex: -START(?=(?:xxx[-$]))

In words: after the -START tag, there should be xxx, followed by either a dash - or the lineend $.

Question: why doesn't the last line produce a match? What am I missing when using the lineend $?

asked Feb 05 '19 at 10:15

membersound

1

`$` in a character set matches the character `$`, alternate instead – CertainPerformance Feb 05 '19 at 10:16
1

Use `-START(?=xxx(?:-|$))`. Or `-START(?=xxx(?![^-]))` (in actual code). – Wiktor Stribiżew Feb 05 '19 at 10:16

0 Answers0