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css: implement ~, + and > combinators

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This commit is contained in:
Pierre Tachoire
2024-03-25 17:09:11 +01:00
parent 565d612abb
commit dcc7e51556
1 changed files with 28 additions and 1 deletions
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29
src/css/selector.zig
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@@ -264,7 +264,34 @@ pub const Selector = union(enum) {
return false;
},
else => return Error.UnknownCombinedCombinator,
.child => {
const p = try n.parent();
if (p == null) return false;
return try v.second.match(n) and try v.first.match(p.?);
},
.next_sibling => {
if (!try v.second.match(n)) return false;
var c = try n.prevSibling();
while (c != null) {
if (!c.?.isElement()) { // TODO must check text node or comment node instead.
c = try c.?.prevSibling();
continue;
}
return try v.first.match(c.?);
}
return false;
},
.subsequent_sibling => {
if (!try v.second.match(n)) return false;
var c = try n.prevSibling();
while (c != null) {
if (try v.first.match(c.?)) return true;
c = try c.?.prevSibling();
}
return false;
},
};
},
.attribute => |v| {