Re[2]: [PHP] Regex for Amateur Radio Callsigns
| From: | Leif Gregory | Date: | Wed, 16 Nov 2005 13:57:08 +0000 |
| Subject: | Re[2]: [PHP] Regex for Amateur Radio Callsigns | ||
| References: | 1 2 3 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-225953@lists.php.net to get a copy of this message | ||
Hello Leonard,
Tuesday, November 15, 2005, 8:39:19 PM, you wrote:
> Here are how they look
> W1W
> W1AW
> WA1W
> AD4HZ
> N9URK
> WB6NOA
> 4N1UBG
Let's do it this way... What are the rules for a valid callsign?
i.e.
- If it's only three characters, it must start with a letter.
- All callsigns must have both alpha and numeric components.
- A callsign can not have to identical letters next to each other
- A callsign is always written in uppercase
etc.
If we know what the rules are that constitute a valid callsign, then
we can help you write a regexp.
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