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➜ MUSHclient
➜ General
➜ About regular expression
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| Posted by
| Tkl1129
Hong Kong (43 posts) Bio
|
| Date
| Wed 06 Jul 2011 09:16 AM (UTC) |
| Message
| 1. Whats the different between (.+?) , (.*?) ? I do serval testing but still don't know the difference between.
2. How regular expression apply to Alias? when will use that to match the things type in?
seems Alias : abc * & contenr : if xxx else xxx
it totally same case? or have other usage?
Thanks | | Top |
|
| Posted by
| Nick Gammon
Australia (23,173 posts) Bio
Forum Administrator |
| Date
| Reply #1 on Wed 06 Jul 2011 09:55 AM (UTC) |
| Message
|
Quote:
1. Whats the different between (.+?) , (.*?) ?
.+ matches one or more of any character.
.* matches zero or more of any character.
The ? means "non greedy". In the case of .* the least number it could match would be zero. In the case of .+ the least number it could match would be one.
 |
Regular expressions
- Regular expressions (as used in triggers and aliases) are documented on the Regular expression tips forum page.
- Also see how Lua string matching patterns work, as documented on the Lua string.find page.
|
Scroll down to "greedy matches".
I don't understand the second question. Can you give an example? |
- Nick Gammon
www.gammon.com.au, www.mushclient.com | | Top |
|
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