Apparently clarity is not my strong suit.
Yes. Both your and Eric's solutions work fine when $:/temp/possearch
contains "Mark" and $:/temp/negsearch contains "Temple." I get a list of
tiddlers.
Now go to the next step. What happens with your solution when
$:/temp/possearch contains "Matthew" and $:/temp/negsearch is empty? Using [
search<possearch>] -[search<negsearch>] I get nothing at all. How do I fix
that?
On Thursday, December 12, 2019 at 9:02:28 PM UTC-6, TonyM wrote:
>
> Stephan
>
> {tiddlername} in filters or {{tiddlername}} in wiki text are not
> variables, they are transclusions. We use <variablename> in filters and
> <<variablename>> in wiki text
>
> If you choose to use transclusions the thing you are transcluding needs to
> contain the value you want used.
>
> Given Erics guidance the simple form is
> [search[Mark]] -[search[Temple]]
>
> Search defaults to tags, text and title if *field list*: is blank
>
> So If I read your example $:/temp/possearch should contain "Mark" and
> $:/temp/negsearch
> should contain "Temple".
>
> Then the filter
> [search{$:/temp/possearch}] -[search{$:/temp/negsearch}]
> should work.,
>
> You could use the edit-text widget to let users enter the value, or even a
> select widget if you already can search for and identify possible values.
>
> Another way to do this is use variables created from transclusions
> \define posssearch() {{$:/temp/possearch}}
> \define negsearch() {{$:/temp/negsearch}}}
>
> then use the filter
> [search<possearch>] -[search<negsearch>]
>
> Regards
> Tony
>
> On Friday, December 13, 2019 at 6:01:16 AM UTC+11, Stephen Kimmel wrote:
>>
>> I want to combine a pair of search operators within a single filter where
>> one will be positive and the other negative. For example, I might want a
>> list of all the tiddlers that contain the word "Mark" but exclude all the
>> tiddlers that contain the word "temple." The solution I suspect would
>> involve an expression that looks something like
>>
>> [search[Mark]!search[Temple]]
>>
>> but, of course, I want to use variables in the expression. So what I have
>> at the moment has an expression that looks like this:
>>
>> search{$:/temp/possearch}!search{$:/temp/negsearch}
>>
>> The problem I'm having occurs when $:/temp/negsearch is either empty or
>> doesn't exist. In that set of circumstances, I get no matches. I would like
>> the search to act as though it were
>>
>> search{$:/temp/possearch}
>>
>> or
>>
>> search{$:/temp/possearch}!search[xyz123]
>>
>> but I can't figure out how to do that.
>>
>> Any ideas?
>>
>
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