How to work with square bracket in operators

[W Yan]

For example, {{{ [{!!field}split[[]join[ ]] }}} seems to work find but {{{ [{!!field}split[]]join[ ]] }}} is giving me syntax errors. So [ works but ] doesn't - how should I handle this?

[Mohammad]

There are some greats resources to learn the syntax, have a look 

1. TW-Scripts:   https://kookma.github.io/TW-Scripts/#Shorthand%20Syntax%20Summary

2. Tones GitWiki: https://anthonymuscio.github.io/#Standard%20Nomenclature

Good luck

[Eric Shulman]

On Wednesday, November 25, 2020 at 11:58:13 AM UTC-8 W Yan wrote:

For example, {{{ [{!!field}split[[]join[ ]] }}} seems to work find but {{{ [{!!field}split[]]join[ ]] }}} is giving me syntax errors. So [ works but ] doesn't - how should I handle this?

The problem is that the first close bracket, "]" is being recognized as the ending delimiter for the split[...] operator.  The result is that the second close bracket is left behind as invalid filter syntax.

A workaround is to define a variable that contains the text of the parameter for the split operator and then use the variable reference in the filter, rather than the literal [...] syntax.

Something like this:

<$vars closebracket="]">

{{{ [{!!field}split<closebracket>join[ ]] }}}

</$vars>

-e

[W Yan]

Very nice resources Mohammad, much appreciated. They seem to be much more thorough than what's explained in official docs, and I learned a lot reading them.

 

Eric, Thank you for the workaround! I've been trying to figure it out myself for couple of days, now tried your solution and it works perfectly.