An attempt to parse TWC content into TW5 fields

#1

I have some content I want to transfer from TWC over to TW5, so I am trying to program a button that will parse the old content into fields.

TWC content looks something like this:

{{section{
!Written By
*Writer 1
*Writer 2
*Writer 3
}}}
{{section{
!Directed By
*Director
}}}
{{section{
!Cast
!!Starring
*actor as role 1
*actor as role 2
*actor as role 3
}}}

The above content is what I am trying to parse into fields based on the heading. For example anything in the “Written By” section would need to be parsed into written-1, written-2, and written-3.

I would like to create a list filter that parses that into fields, after pasting it into a textarea, which will transfer that text into a tiddler called $:/temp/TWC-parser.

Something that I have been playing around with below:

<$button>
  <$list filter="[{$:/temp/TWC-parser}splitregexp[\n]search-replace:g[{{section{],[]search-replace:g[}}}],[]]" variable="parser" counter="count">
    <$list filter="[<parser>match[!Written By]" variable="writer" counter="writer-count">
      <!-- Is it possible to start at zth[1] here? -->
      <$action-setfield $tiddler=<<currentTiddler> $field={{{ [<writer-count>subtract[1]addprefix[written-] }}} $value=<<writer>>/>
      <!-- Is it possible to stop when the next line has the prefix[!]? -->
    </$list>

    <!-- Then repeat the process for directors -->
    <$list filter="[<parser>match[!Directed By]" variable="director" counter="director-count">
      <$action-setfield $tiddler=<<currentTiddler> $field={{{ [<director-count>subtract[1]addprefix[director-] }}} $value=<<director>>/>
    </$list>
    
    <$action-setfield $tiddler="$:/temp/TWC-parser" $field="text" $value=""/>
  </$list>
  parse fields
</$button>

I was wondering if was possible to start at a specific header and stop just before the next header.

I have a lot of tiddlers to transfer from TWC to TW5, I’m just trying to make the process easier, so I just asking this out of curiosity. If not possible, I guess I just have to transfer the old fashion way.