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Asked: 2026-05-23T16:15:02+00:00

I’m trying to create a pattern that would identify a money in a string.

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I’m trying to create a pattern that would identify a money in a string. My expression so far is:

(\d{1,3}[\.,\s]{0,2})*\d{3}[\.,\s]{0,2}\d{0,2}[\s]{0,2}[zl|zł|zlotych|złotych|pln|PLN]{0,1}

and my main problem is with the last part: [zl|zł|zlotych|złotych|pln|PLN], which should find one of the national notations for money value (sth like $ or usd or dollars) but I’m doing it wrong, since it also matches something like ‘108.1 z’.

Is it possible to change the last part, so that it would match only expressions that contain the whole expressions like ‘zl’, ‘pln’ and so on, and not single letters?

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1 Answer

  1. Editorial Team

    Yes, don’t use [], which defines a character class, but instead use () to group your words.

    (\d{1,3}[\.,\s]{0,2})*\d{3}[\.,\s]{0,2}\d{0,2}[\s]{0,2}(zl|zł|zlotych|złotych|pln|PLN)?

    As you had it written, [zl|zł|zlotych|złotych|pln|PLN], means “match any of the characters contained in the []“, or the equivalent of: [zl|łotychpnPLN] (duplicates removed)

    If you don’t want the money symbol captured, then start the group with ?:, i.e.:

    (\d{1,3}[\.,\s]{0,2})*\d{3}[\.,\s]{0,2}\d{0,2}[\s]{0,2}(?:zl|zł|zlotych|złotych|pln|PLN)?
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