Category talk:Wren-pattern: Difference between revisions
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(Adjustments to now recognize 'µ' as an extended lower case letter.) |
(→Wren patterns: Corrected an example.) |
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Quantifiers always qualify ''singles''. Any departure from this is an error and groups of characters cannot therefore be directly quantified. |
Quantifiers always qualify ''singles''. Any departure from this is an error and groups of characters cannot therefore be directly quantified. |
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There may sometimes be ways to quantify them indirectly either by simply repeating the pattern or by using captures and back-references. For example "[abab|ab|]" would match 'ab' repeated 2, 1 or 0 times and "[abcd] |
There may sometimes be ways to quantify them indirectly either by simply repeating the pattern or by using captures and back-references. For example "[abab|ab|]" would match 'ab' repeated 2, 1 or 0 times and "[abcd]$1$1" would match 'abcd' repeated exactly three times. |
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However, this sort of approach clearly has its limitations and there is no way to match a group of characters repeated an indefinite number of times. |
However, this sort of approach clearly has its limitations and there is no way to match a group of characters repeated an indefinite number of times. |
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