Find word in a text tath can be start with non alfanumeric character

Question

I need to find word ( I know it) in a text of any lenght, like the following.

My text is very beautyfull. Yours  $text is very bautyfull. Their #text, is very beautyfull

# and $ are only sample. I can have any non-alphnumerical character

I have found the following regex:

(?<=^|[^a-zA-Z0-9])\Q<word>\E(?=$|[^a-zA-Z0-9])

tath work very well if i search #text or $text, but when i search only text it match all occurrences (three in example below) instead only one occurrence text. Is there a way to do this with regex?

score 0 · Answer 1 · answered Oct 24 '14 at 09:32

0

Add # and $ to the first negated char class which was present inside the positive lookbehind. So that it won't match the string text which was preceded by # or $ or a-z or A-Z or 0-9

(?<=^|[^a-zA-Z0-9$#])\Qtext\E(?=$|[^a-zA-Z0-9])

DEMO

answered Oct 24 '14 at 09:32

Avinash Raj

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or you could simply use this `(?<=^|[^\S$#])\Qtext\E(?=$|[^\S])` – Avinash Raj Oct 24 '14 at 09:37
`#` and `$`are only simple, I can have other characters . I need something like `\b` that also work with non-alphanumerical characters. – theShadow89 Oct 24 '14 at 09:39
yep, but you need to remove the `\Q\E`.. i think you want to achieve without removing `\Q\E` – Avinash Raj Oct 24 '14 at 09:40
yep, because if i need to find `$text`, `$` is interpreted as regex command without `\Q...\E` – theShadow89 Oct 24 '14 at 09:45

Find word in a text tath can be start with non alfanumeric character

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