How do I remove a suffix from a variable?

[leeand00]

So I'm using a filter, and it's working great to remove the suffix and add another one...see below:

[tag[templates]tag[EditingTemplate]] +[removesuffix[Template]] +[addsuffix[ - Underground]]

Result:

Spelling - Underground

PunctuationMistakes - Underground

VerbMistakes - Underground

CheckAdverbAdjectiveMistakes - Underground

CheckForUnnecesaryWordsMistakes - Underground

LookForWeakSentancesAndPhrasesThatNeedMoreInformation - Underground

LookForRepetitionOfWordsOrPhrases - Underground

LookForVaguePhrases - Underground

CheckParagraphing - Underground

CheckForDumbOrIllogicalStatements - Underground

CheckForColloquialismsSlangInformalPhrases - Underground

But...what I really want to do here, is remove the suffix and add another one in a variable so I can create a bunch of template tiddlers:

<$list filter="[tag[templates]tag[EditingTemplate]]">

  <$set name="whichTiddlerTemplateName" value=<<currentTiddler>> >

   <$set name="tiddlerToCreateFromTemplate" value="<<whichTiddlerTemplateName>> - Underground" >

Use This Template: <<whichTiddlerTemplateName>><br/>

Create This Tiddler From Template: <<tiddlerToCreateFromTemplate>><br/>

<hr/>

</$set>

</$set>

</$list>

In the second <$set> above (" tiddlerToCreateFromTemplate") I want to be able to remove the template prefix the way I did in the filter...so that I get  Spelling - Underground  instead of  Spelling Template - Underground  

how do I do that?  

[Saq Imtiaz]

Something along these lines will get you there:

<$set name="tiddlerToCreateFromTemplate" 

    value={{{[<whichTiddlerTemplateName>removeSuffix[Underground]]}}} >

OR simplify

<$list filter="[tag[templates]tag[EditingTemplate]]">

<$set name="tiddlerToCreateFromTemplate" 

    value={{{[<currentTiddler>removeSuffix[Underground]]}}} >

Use This Template: <<currentTiddler>><br/>

Create This Tiddler From Template: <<tiddlerToCreateFromTemplate>><br/>

<hr/>

</$set>

</$list>

[Saq Imtiaz]

PS: I realize now you may want addSuffix and not removeSuffix. Apologies.

[leeand00]

Okay I got it...had to make a small plugin, but it appears to work...

/*\ title: $:/core/modules/macros/tw5filterTemplatePrefix.js 

      type: application/javascript module-type: macro Macro to return something less the prefix.
 \*/
(function(){ /*jslint node: true, browser: true */ 
                     /*global $tw: false */
                     "use strict";
                     /* Information about this macro */

    exports.name = "tw5filterTemplatePrefix";
    exports.params = [ {name: "m"} ];

   /* Run the macro m: is the Tiddler Template Title returns: The name of the Tiddler less the template. */
   exports.run = function(m, v) { return m.replace(/Template/i, ""); };
 })();  

$:/core/modules/macros/tw5filterTemplatePrefix.js  

<!--

     Name: testCreate()

     Purpose: Macro that uses the specified tiddler as a template for  

                      copying / cloning / duplicating it into a new one with a 
                      specified suffix.

 

     Macro required variables:
            - $(whichTiddlerTemplate)$ - The name of the src tiddler to be copied
            - $(tiddlerToCreate)$ - The name of the new tiddler to create minus the suffix.

            - $(dasSuffix)$ - The suffix of the new tiddler to create.

     Macro required shadow tiddlers:
            - $:/state/tab-1749438307 - stores the name of the copied, cloned, duplicated tiddler.

     Dependency macros:
            - createDasTid()

 -->

\define testCreate()

<!-- Set this field for use later when we generate the title of the new copied/duplicated/cloned tiddler -->

<$action-setfield $tiddler="$:/state/tab-1749438307" text="$(tiddlerToCreate)$ - $(dasSuffix)$" />

<!-- Create a copy of a tiddler based on another. -->

<<createDasTid>>

\end

<!--

     Name: createDasTid()

     Purpose: Macro that makes a copy of the tiddler.

 

     Macro required variables:
            - $(whichTiddlerTemplate)$ - The name of the src tiddler to be copied

     Macro required shadow tiddlers:
            - $:/state/tab-1749438307 - stores the name of the tiddler to be copied / cloned / duplicated.

 -->

\define createDasTid()

<$action-createtiddler $template="$(whichTiddlerTemplate)$" $basetitle={{$:/state/tab-1749438307}}  tags="deltag"  />

\end

\define removeTemplatePrefix()
<!-- Calls the Plugin above -->

<<tw5filterTemplatePrefix m:"$(whichTiddlerTemplate)$">>

\end

<!-- Whatever is typed into this textbox is stored in the $:/state/new-tiddler-suffix system/shadow tiddler -->

''Suffix:'' <$edit-text tiddler="$:/state/new-tiddler-suffix" tag="input" default=""/>

<!-- Begin button to duplicate all from template tiddlers -->

<$button>
<!-- Once this script obtains a list of template tiddlers based on their tags and

      titles, it needs to know two things about each tiddler that it replicates

       1. The name of the existing Template tiddler.

       2. The name of the new cloned Tiddler created from the tiddler template.

          2.1 (The new suffix for each cloned/duplicated/copied tiddler)

  -->
<!-- Each Tiddler to be used as a template and duplicated 

      is tagged with both of the following tags: "templates", and "EditingTemplate"

      and here we obtain them to be gone through using the currentTiddler variable, 

      one at a time after the button is clicked.

      Each of these tiddlers also ends with the suffix "Template" which needs to be removed

      later on by the removeTemplatePrefix macro when generating the name of the newly created

      tiddler.

 -->

<$list filter="[tag[templates]tag[EditingTemplate]]">

    <!-- Start setting variables for this iteration of the loop, each variable set for this iteration will be 

          used within the macro definitions above when they are called. (removeTemplatePrefix and testCreate for instance)  -->

    <!-- Set a variable within this iteration of the loop which contains the suffix specified in the Suffix: textbox above. -->

    <$set name="dasSuffix" value={{$:/state/new-tiddler-suffix}}>
         <!-- Set a variable that specifies which tiddler template to clone/duplicate/copy from 

               the current tiddler we are iterating over.  -->  

         <$set name="whichTiddlerTemplate" value=<<currentTiddler>> >

         <!-- Create a variable named "tiddlerToCreate" from the result of calling the removeTemplatePrefix macro and
                then wifiy it so it is parsed and rendered. -->

          <$wikify name="tiddlerToCreate" text=<<removeTemplatePrefix>> >

               <!-- Call the testCreate macro to create the clone/copy/duplicate of the tiddler being itterated over. -->

               <<testCreate>>

         </$wikify>

      </$set>

    </$set>

</$list>

Create From Editing Template

</$button>

Tiddler: CreateTiddlersFromTemplates

This appears to work if you leave all the <!-- --> comments out, I should probably add something for the tags as well.

[Saq Imtiaz]

Not sure you need the JavaScript.

Assuming input:

Spelling Template 

Desired output:

Spelling - Underground

Try:

<$set name="tiddlerToCreateFromTemplate" 

    value={{{[<whichTiddlerTemplateName>removeSuffix[Template]addSuffix[- Underground]]}}} >

OR

<$set name="tiddlerToCreateFromTemplate" 

    value={{{[<whichTiddlerTemplateName>split[Template]join[]addSuffix[ - Underground]]}}} >

You can also do :

{{{[<whichTiddlerTemplateName>removeSuffix[Template]addSuffix[- Underground]]}}}

to directly create a link instead of setting to a variable.

[Eric Shulman]

On Saturday, September 5, 2020 at 12:05:24 PM UTC-7, leeand00 wrote:

So I'm using a filter, and it's working great to remove the suffix and add another one...see below:

[tag[templates]tag[EditingTemplate]] +[removesuffix[Template]] +[addsuffix[ - Underground]]

But...what I really want to do here, is remove the suffix and add another one in a variable so I can create a bunch of template tiddlers:

<$list filter="[tag[templates]tag[EditingTemplate]]">
   <$set name="whichTiddlerTemplateName" value=<<currentTiddler>> >
   <$set name="tiddlerToCreateFromTemplate" value="<<whichTiddlerTemplateName>> - Underground" >
   Use This Template: <<whichTiddlerTemplateName>><br/>
   Create This Tiddler From Template: <<tiddlerToCreateFromTemplate>><br/>
   <hr/>
   </$set>
   </$set>
</$list>

In the second <$set> above (" tiddlerToCreateFromTemplate") I want to be able to remove the template prefix the way I did in the filter...so that I get  Spelling - Underground  instead of  Spelling Template - Underground  
how do I do that?  

In addition to using filter syntax in the $list widget's filter="..." parameter,

you can also use the same filter syntax "inline" to compute a value

for any widget parameter by enclosing it within tripled curly braces {{{ [...] }}}

For your example, you can write this:

<$list filter="[tag[templates]tag[EditingTemplate]]">

   <$vars tiddlerToCreateFromTemplate={{{ [<currentTiddler>removesuffix[Template]addsuffix[ - Underground]] }}}
   Use This Template: <<currentTiddler>><br/>

   Create This Tiddler From Template: <<tiddlerToCreateFromTemplate>><br/>

   </$vars>
   <hr/>
</$list>

-e

[leeand00]

Okay I just used the Javascipt because I'm more familiar with it than the macros (which I don't know how to comment either), but I also because didn't know how to create the new tiddlers in Javascript from the template tiddlers.

[leeand00]

Yes, that's much less verbose thank you!