How to get $list of all tiddlers with text "nsort[price]" in text field?

[Siniy-Kit]

I try  different variants 

<$list filter="[text['nsort[price]']]">  <<currentTiddler>></$list>

but

Filter error: Missing [ in filter expression

[Eric Shulman]

You can't use a filter parameter value that contains any of the special characters used for defining filter syntax, such as square brackets.

To work around this, you can use a variable that contains the desired parameter value.  For example:

\define findthis() nsort[price]
<$list filter="[text<findthis>]">  <<currentTiddler>></$list>

or

<$vars findthis="nsort[price]">
<$list filter="[text<findthis>]">  <<currentTiddler>></$list>
</$vars>

enjoy,

-e