Mark,
Thanks- that seams a reasonable solution for sizing small fields.
What maths library would you be thinking of me using?
I Know about Evans Formula plugin and remember a calc widget somewhere.
Regards
Tony
On Thursday, June 6, 2019 at 2:26:10 PM UTC+10, Mark S. wrote:
>
> You'll either need a math library, or upgrade to 5.1.20.
>
> But here's a way for strings that are 50 characters or less:
>
> \define length2(str,len)
> <$vars reg="^.{$len$}$">
> <$set name="result" filter="[title[$str$]regexp<reg>]" value="""$len$"""
> emptyValue="" >
> <<result>>
> </$set>
> </$vars>
> \end
> \define length(str)
> <$list filter="[range[1,50]]" variable="cnt">
> <$macrocall $name="length2" str="""$str$""" len=<<cnt>>/>
> </$list>
> \end
>
> Length: <<length "How long am I">>
>
>
> You can, of course, extend it to possible longer numbers. But it's not
> very efficient (it will check every possible length between 1 and 50 even
> AFTER it has found the correct length).
>
> Mark
>
> On Wednesday, June 5, 2019 at 6:16:52 PM UTC-7, TonyM wrote:
>>
>> Bump,
>>
>> Is there a way to obtain the length of a string?
>>
>> It appears to be coming in 5.1.20 but before ?
>>
>> For example if there was a length operator I could do this
>> {{{ [length{!!caption}] }}}
>>
>> Placing it in the size= parameter of edit-text widget would be great.
>>
>> Regards
>> Tony
>>
>>
>> On Thursday, May 30, 2019 at 10:27:29 AM UTC+10, TonyM wrote:
>>>
>>> Hi,
>>>
>>> I am using the edit-text widget to edit fields. I am using tag=input and
>>> it is possible to set the size of the field in number of characters. The
>>> default is 20 (HTML doco)
>>>
>>> However I would like this size to be set to the length of the value
>>> contained in the field, or ideally only if it is greater than already set.
>>>
>>> Does anyone know how to do this please?
>>>
>>> Tony
>>>
>>
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