Here's code for the first easy 9 (assuming my def of extension matches
yours).
#10 and #11 should be doable, it would just take a little more time which I
don't have at the moment.
I don't think 12 is doable with the current regexp kit. To find duplicates
it would have to loop back on itself.
#13 should be 90+% doable. I would start by searching the net. It depends
on how picky you are about the
structure.
Good luck!
<$vars digonly="^[0-9]*$">
<$vars useme=<<digonly>>>
</$vars>
</$vars>
<$select tiddler="myregexp">
<option value="^[0-9]*$">Only digits</option>
<option value="^[a-z]*$">Only lower case</option>
<option value="^[A-Z]*$">Only upper case</option>
<option value="^[\w-_]*$">Only alphanumeric, _, and -</option>
<option value="^[\w]{3,15}$">Only alphanum len 3-15</option>
<option value="^[A-Z]+.*$">Starts with capital</option>
<option value="^[0-9]+.*$">Starts with digit</option>
<option value="^.+\.[a-zA-Z]{3,4}$">Extensions only</option>
<option value="^.+(\.jpg|\.gpeg)$">Extension jpg gpeg</option>
</$select>
<$list filter="[regexp{myregexp}sort[]]">
</$list>
On Friday, August 23, 2019 at 12:11:07 AM UTC-7, Mohammad wrote:
>
> I am looking for examples and use cases of regexp in Tiddlywiki!
> Those can be done current filter operators like prefix, search,... are not
> recommend to be done with regexp.
>
> I appreciate your help, case and examples on this. Just give what you want
> to do.
>
> Some case
>
> Give a regexp pattern in Tiddlywiki to match all tiddlers name are
>
>
> 1. only digits
> 2. only lowercase letters
> 3. only uppercase letters
> 4. only alphanumeric and underscore and hyphen
> 5. only alphanumeric with length between 3 and 15
> 6. start with a capital letter
> 7. start with a digit
> 8. have a extension like mytiddler.ext
> 9. have jpg or jpeg extension like *mytiddler.jpg* or *mytiddler.gpeg*
> 10. are a date in format like Jan 06 2019
> 11. are a date in format like 2019.08.25
> 12. have duplicate words
> 13. have a valid url
> 14.
>
>
> [This list will grow by more examples]
>
>
> Please give your use case.
>
> -- Mohammad
>
>
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