a problem of function e()

[zhnoah]

I have a piece of code, that works fine:

// input
.mixin-create-width-style() {
    @list: e("90 100 110");

    each(@list, {
        .w-@{key} {
            width: @value;
        }
    })
}

.a {
    .mixin-create-width-style();
}

// output
.a .w-1 {
  width: 90;
}
.a .w-2 {
  width: 100;
}
.a .w-3 {
  width: 110;
}

but, When I want to pass a list string as a parameter:

// input
.mixin-create-width-style(@str) {
    @list: e(@str);

    each(@list, {
        .w-@{key} {
            width: @value;
        }
    })
}

.a {
    .mixin-create-width-style("90 100 110");
}

It doesn't work:

// output
.a .w-1 {
  width: 90 100 110;    // It's not I want
}

What's wrong with that?

[seven-phases-max]

Actually your first example looks like a bug (in each implementation?).
All of "1 2 3", ~"1 2 3", e("1 2 3") and similar create a single value and not a list (and should never be interpreted as a list implicitly).

Why are you using quotes at all? Shouldn't this be just:

.mixin-create-width-style(@list) {
    each(@list, {
        .w-@{key} {
            width: @value;
        }
    });
}

.a {
    .mixin-create-width-style(90 100 110);
}

?

[matthew-dean]

@seven-phases-max The issue was actually in the e() function, which for legacy reasons created an Anonymous node instead of an escaped Quoted node like ~"" does.

This was all fine and good until late parsing was added, so any variable's value was first parsed as an Anonymous node, then the value was parsed later only when referenced. So since then, e() was always parsing the quoted value, which, in most cases wouldn't have been noticed until someone tried to use it in a list like this.

@zhnoah - @seven-phases-max is right though, there's no need to try to escape a list to iterate the list. Just use a list. I've also fixed the abberant e() behavior, which still won't give you what you want; it'll output a single value for every case.

[stale]

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