Nested Pseudo-classes selector list report error "Missing closing ')'"

[FlareZh]

https://lesscss.org/less-preview/#eyJjb2RlIjoiOm5vdCg6aGFzKGRpdiksIGRpdiwgaCkge1xuICAgIGJhY2tncm91bmQ6IHJlZDtcbiAgICB3aWR0aDogMTAwcHg7XG4gICAgaGVpZ2h0OiAxMDBweDtcbn0iLCJhY3RpdmVWZXJzaW9uIjoiNC4xLjMifQ==

[iampaandey]

Can you please assign this issue to me?

[FlareZh]

Can you please assign this issue to me?

Of course. But it looks like I don't have that permission.

[iampaandey]

Can i still complete this issue.

[ivan-sapeha]

Facing with the same issue. https://lesscss.org/less-preview/#eyJjb2RlIjoiLmNsYXNzIHtcbiAgJjpoYXMoOmlzKHRleHRhcmVhLHNlbGVjdCxpbnB1dDpub3QoOmlzKFt0eXBlPVwiYnV0dG9uXCJdLFt0eXBlPVwiY2hlY2tib3hcIl0sW3R5cGU9XCJmaWxlXCJdLFt0eXBlPVwicmFkaW9cIl0sW3R5cGU9XCJyYW5nZVwiXSxbdHlwZT1cInN1Ym1pdFwiXSkpKSl7XG4gIGRpc3BsYXk6IGJsb2NrO1xufX0iLCJhY3RpdmVWZXJzaW9uIjoiNC4xLjMifQ==

[iampaandey]

@iChenLei can you please exactly tell the line in less.js file from where you take the code from playground ?

[vimal20002]

@iChenLei can I also work on that me and @iampaandey are peer programmer please assign it to me also ! ;)

[iampaandey]

Can you also please elaborate little bit @matthew-dean ?

[matthew-dean]

@iampaandey I think the issue is here. It looks like the parser is a little naive, in that it allows any parenthetical (I think) after a selector, but then, within that parenthetical, it only accepts a single selector (this.selector vs this.selectors)

[puckowski]

I believe #4290 may fix this issue.

The following Less.js:

:not(:has(div), div, h) {
    background: red;
    width: 100px;
    height: 100px;
}

becomes:

:not(:has(div), div, h) {
  background: red;
  width: 100px;
  height: 100px;
}

I tested using https://github.com/puckowski/less.js/releases/tag/4.2.1.2

Fork release is Less.js 4.2.1 with fixes for:
#4252
#3737
#4258
#4264
#4268
#4267