« Regexp » : différence entre les versions
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Page créée avec « Catégorie:Commandes == Description == == Guide== == Exemples== ==Voir aussi== » |
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== Guide== | == Guide== | ||
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|+Les métacaractères | |||
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! Metacaractères !! Signification | |||
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? The ? (question mark) matches the preceding character 0 or 1 times only, for example, colou?r will find both color and colour. | |||
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!* || The * (asterisk or star) matches the preceding character 0 or more times, for example, tre* will find tree and tread and trough. | |||
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!+ || The + (plus) matches the previous character 1 or more times, for example, tre+ will find tree and tread but not trough. | |||
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!{n}||Matches the preceding character n times exactly, for example, to find a local phone number we could use [0-9]{3}-[0-9]{4} which would find any number of the form 123-4567. | |||
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Note: The - (dash) in this case, because it is outside the square brackets, is a literal. Value is enclosed in braces (curly brackets). | |||
{n,m} Matches the preceding character at least n times but not more than m times, for example, 'ba{2,3}b' will find 'baab' and 'baaab' but NOT 'bab' or 'baaaab'. Values are enclosed in braces (curly brackets). | |||
== Exemples== | == Exemples== | ||
==Voir aussi== | ==Voir aussi== | ||
Version du 16 décembre 2010 à 10:47
Description
Guide
? The ? (question mark) matches the preceding character 0 or 1 times only, for example, colou?r will find both color and colour.| Metacaractères | Signification |
|---|---|
| * | The * (asterisk or star) matches the preceding character 0 or more times, for example, tre* will find tree and tread and trough. |
| + | The + (plus) matches the previous character 1 or more times, for example, tre+ will find tree and tread but not trough. |
| {n} | Matches the preceding character n times exactly, for example, to find a local phone number we could use [0-9]{3}-[0-9]{4} which would find any number of the form 123-4567. |
Note: The - (dash) in this case, because it is outside the square brackets, is a literal. Value is enclosed in braces (curly brackets). {n,m} Matches the preceding character at least n times but not more than m times, for example, 'ba{2,3}b' will find 'baab' and 'baaab' but NOT 'bab' or 'baaaab'. Values are enclosed in braces (curly brackets).
