| Title |
Test
Find
Pattern Title
|
| Expression |
(?i:([A-D])(?!\1)([A-D])(?!\1|\2)([A-D])(?!\1|\2|\3)([A-D])) |
| Description |
This regex validates a string of non-repeating characters A, B, C, D. |
| Matches |
abcd | dbca | badc |
| Non-Matches |
abba | baaa | cabb |
| Author |
Rating:
Not yet rated.
Michael Ash
|
| Source |
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| Your Rating |
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Title: Re: Avoid Consecutive spaces
Name: Michael Ash
Date: 10/22/2004 11:44:31 PM
Comment:
Allow and avoid in what? A sentence? An Equation? A phone number? It may be easier to trim extra spaces.
Title: Avoid Consecutive spaces
Name: mansoor
Date: 10/22/2004 12:42:38 PM
Comment:
Hi,
How can we allow spaces but avoid consecutive spaces.
Any help would be appreciated.
Thanks
