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Fixed regex example expression typo.

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[SVN r12792]
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John Maddock
2002-02-13 12:30:22 +00:00
parent 44d33b20d5
commit 76c85c7c34
1 changed files with 1 additions and 1 deletions
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introduction.htm
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@ -87,7 +87,7 @@ tended to be hard-coded to the C-locale, consequently this was
not an issue for them). That leaves us with the following regular
expression to validate credit card number formats:</p>
<p>(\d{4}[- ]){3}\d</p>
<p>(\d{4}[- ]){3}\d{4}</p>
<p>Here the parenthesis act to group (and mark for future
reference) sub-expressions, and the {4} means &quot;repeat