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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 not an issue for them). That leaves us with the following regular
expression to validate credit card number formats:</p> 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 <p>Here the parenthesis act to group (and mark for future
reference) sub-expressions, and the {4} means &quot;repeat reference) sub-expressions, and the {4} means &quot;repeat