Regular Expression For Formatted Number With Space As Thousand Separator

A Regular Expression for those who use a space as thousands separator.

/(^(((\d)|(\d\d)|(\d\d\d))(\xA0|\x20))*((\d)|(\d\d)|(\d\d\d))([,.]\d*)?$)/

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Matches:

• 123 456
• 123 456.78
• 1 234

Non-matches:

• 123456.78
• 123,456.78
• 1234

See Also:

• Currency Regular Expressions
• Regex To Match Dollar ($) And Comma (,) In String