Issue #15244 has been updated by TiSer (Sergey TiSer).


ahorek (Pavel Rosick) wrote:
> IMO
> ```
> File.extname('..jpg')
> ```
> should be
> ```
> => ".jpg"
> ```
> 
> proposed
> ```
> => "."
> ```
> or the current behaviour
> ```
> => ""
> ```
> makes no sense

Yes, sure. I'm sorry, I oversleep correct cases.
Updated.

----------------------------------------
Bug #15244: Method #extname return empty string if filename is dot ('.')
https://bugs.ruby-lang.org/issues/15244#change-74586

* Author: TiSer (Sergey TiSer)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: 2.5.0p0
* Backport: 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN
----------------------------------------
### Example 1:
Current behaviour:
```
File.extname('..jpg')
=> ""
```

Expected behaviour: 
```
File.extname('..jpg')
=> ".jpg"
```


### Example 2:
Current behaviour:
```
File.extname('....jpg')
=> ""
```

Expected behaviour: 
```
=> ".jpg"
```



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