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'use strict';
const isStandardSyntaxRule = require('../../utils/isStandardSyntaxRule');
const parseSelector = require('../../utils/parseSelector');
const punctuationSets = require('../../reference/punctuationSets');
const report = require('../../utils/report');
const ruleMessages = require('../../utils/ruleMessages');
const validateOptions = require('../../utils/validateOptions');
const ruleName = 'selector-descendant-combinator-no-non-space';
const messages = ruleMessages(ruleName, {
rejected: (nonSpaceCharacter) => `Unexpected "${nonSpaceCharacter}"`,
});
function rule(expectation, options, context) {
return (root, result) => {
const validOptions = validateOptions(result, ruleName, {
actual: expectation,
});
if (!validOptions) {
return;
}
root.walkRules((rule) => {
if (!isStandardSyntaxRule(rule)) {
return;
}
let hasFixed = false;
const selector = rule.raws.selector ? rule.raws.selector.raw : rule.selector;
const fixedSelector = parseSelector(selector, result, rule, (fullSelector) => {
fullSelector.walkCombinators((combinatorNode) => {
if (!isActuallyCombinator(combinatorNode)) {
return;
}
const value = combinatorNode.value;
if (punctuationSets.nonSpaceCombinators.has(value)) {
return;
}
if (
value.includes(' ') ||
value.includes('\t') ||
value.includes('\n') ||
value.includes('\r')
) {
if (context.fix && /^\s+$/.test(value)) {
hasFixed = true;
combinatorNode.value = ' ';
return;
}
report({
result,
ruleName,
message: messages.rejected(value),
node: rule,
index: combinatorNode.sourceIndex,
});
}
});
});
if (hasFixed) {
if (!rule.raws.selector) {
rule.selector = fixedSelector;
} else {
rule.raws.selector.raw = fixedSelector;
}
}
});
};
}
rule.ruleName = ruleName;
rule.messages = messages;
module.exports = rule;
/**
* Check whether is actually a combinator.
* @param {Node} combinatorNode The combinator node
* @returns {boolean} `true` if is actually a combinator.
*/
function isActuallyCombinator(combinatorNode) {
// `.foo /*comment*/, .bar`
// ^^
// If include comments, this spaces is a combinator, but it is not combinators.
if (!/^\s+$/.test(combinatorNode.value)) {
return true;
}
let next = combinatorNode.next();
while (skipTest(next)) {
next = next.next();
}
if (isNonTarget(next)) {
return false;
}
let prev = combinatorNode.prev();
while (skipTest(prev)) {
prev = prev.prev();
}
if (isNonTarget(prev)) {
return false;
}
return true;
function skipTest(node) {
if (!node) {
return false;
}
if (node.type === 'comment') {
return true;
}
if (node.type === 'combinator' && /^\s+$/.test(node.value)) {
return true;
}
return false;
}
function isNonTarget(node) {
if (!node) {
return true;
}
if (node.type === 'combinator' && !/^\s+$/.test(node.value)) {
return true;
}
return false;
}
}
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