Java Regex Eliminate the last certain character to the end of string

Question

Pattern: ([^\|]*)

Strings:

Result: They found the the huge gold in Vietnam

Target:

They found the the huge gold in Vietnam|China|Lao last summer.

Question: How do you know it is OK to remove " | BBCworld.com" from string 1 but not OK to remove "|Lao last summer." from string 2? You must answer that question before we can answer your question. — Patrick Parker, Feb 09 '17 at 10:46
P.S. @WiktorStribiżew it's not a duplicate, just poorly worded and poorly defined. — Patrick Parker, Feb 09 '17 at 10:48

score 2 · Answer 1 · answered Feb 09 '17 at 10:18

2

A classic case of using regex where it's not needed:

String result = input.substring(0, input.lastIndexOf('|'));

answered Feb 09 '17 at 10:18

Andy Turner

I would say `indexOf`: The example says That for `They found the the huge gold in Vietnam|China|Lao last summer. | BBCworld.com` and `They found the the huge gold in Vietnam|China|Lao last summer.` the result should be `They found the the huge gold in Vietnam`, so it's the very first index of `|`, not the last one. – BackSlash Feb 09 '17 at 10:39
@BackSlash but the *desired output* is "They found the the huge gold in Vietnam|China|Lao last summer.". – Andy Turner Feb 09 '17 at 10:39
Oh. So "Result" is what he is getting and "Target" is what he wants to achieve... My bad, but OP could have explained a little bit better. Sorry! – BackSlash Feb 09 '17 at 10:41
@BackSlash no problem, it's not very clear. – Andy Turner Feb 09 '17 at 10:41

score 0 · Answer 2 · answered Feb 09 '17 at 10:19

0

Use the $ anchor, that means end of string:

\|[^|]*$

answered Feb 09 '17 at 10:19

Toto

2 Answers2