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CSSLint: parse <declaration-value> for --custom-property

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https://drafts.csswg.org/css-syntax-3/#typedef-declaration-value

Example:

:root {
  --fit: {
    position: absolute;
    top: 0; bottom: 0;
    left: 0; right: 0;
  }
}
This commit is contained in:
tophf 2017-12-25 04:28:26 +03:00
parent 12fe1b619f
commit 1406cae6c5
1 changed files with 82 additions and 2 deletions
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84
vendor-overwrites/csslint/csslint-worker.js
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@ -2546,9 +2546,14 @@ Parser.prototype = function() {
if (property !== null) {
tokenStream.mustMatch(Tokens.COLON);
this._readWhitespace();
expr = this._expr();
// whitespace is a part of custom property value
if (property.text.startsWith("--")) {
expr = this._customProperty();
} else {
this._readWhitespace();
expr = this._expr();
}
//if there's no parts for the value, it's an error
if (!expr || expr.length === 0) {
@ -2655,6 +2660,73 @@ Parser.prototype = function() {
return values.length > 0 ? new PropertyValue(values, values[0].line, values[0].col) : null;
},
_customProperty: function() {
const reader = this._tokenStream._reader;
const value = [];
const endings = [];
let end = /[;!}]/;
readValue:
while (!reader.eof()) {
const chunk = reader.readMatch(/([^;!'"{}()[\]/]|\/(?!\*))+/y);
if (chunk) value.push(chunk);
reader.mark();
let c = reader.read();
value.push(c);
switch (c) {
case '/':
value.push(reader.readMatch(/([^*]|\*(?!\/))*(\*\/|$)/y));
continue;
case '"':
case "'":
reader.reset();
value.pop();
value.push(reader.readString());
continue;
case '{':
endings.push(end);
end = '}';
continue;
case '(':
endings.push(end);
end = ')';
continue;
case '[':
endings.push(end);
end = ']';
continue;
case ';':
case '!':
if (endings.length) continue;
reader.reset();
// fallthrough
case '}':
case ')':
case ']':
if (end instanceof RegExp ? !end.test(c) : c !== end) {
reader.reset();
return null;
}
end = endings.pop();
if (end) continue;
if (c === '}') {
// unget parent }
reader.reset();
value.pop();
}
break readValue;
}
}
if (!value[0]) return null;
const {startCol: col, startLine: line} = this._tokenStream._token;
return new PropertyValue([
new PropertyValuePart(value.join(''), line, col),
], line, col);
},
_term: function(inFunction) {
/*
@ -6916,6 +6988,14 @@ StringReader.prototype = {
*/
readMatch: function(matcher) {
if (matcher.sticky) {
matcher.lastIndex = this._cursor;
if (matcher.test(this._input)) {
return this.readCount(RegExp.lastMatch.length);
}
return null;
}
var source = this._input.substring(this._cursor),
value = null;