1.3 KiB
| Title | Status |
|---|---|
| Regex cheat sheet | draft |
Juste un mémo pour ce qui touche aux expressions régulières. Je ne sais plus exactement d'où proviennent les informations ci-dessous, par contre...
+----------+-----------------------------+
|. + any character except newline|
+----------+-----------------------------+
|\w \d \s+word, digit, whitespace |
+----------+-----------------------------+
|\W \D \S+ not word, digit, whitespace |
+----------+-----------------------------|
[abc] any of a, b, or c [^abc] not a, b, or c [a-g] character between a & g
Anchors
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^abc$ start / end of the string \b word boundary
Escaped characters
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. * \ escaped special characters \t \n \r tab, linefeed, carriage return \u00A9 unicode escaped ©
Groups & Lookaround
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(abc) capture group \1 backreference to group #1 (?:abc) non-capturing group (?=abc) positive lookahead (?!abc) negative lookahead
Quantifiers & Alternation
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a* a+ a? 0 or more, 1 or more, 0 or 1 a{5} a{2,} exactly five, two or more a{1,3} between one & three a+? a{2,}? match as few as possible ab|cd match ab or cd