forked from stylelint/stylelint
/
index.js
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/
index.js
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'use strict';
const _ = require('lodash');
const isStandardSyntaxRule = require('../../utils/isStandardSyntaxRule');
const isStandardSyntaxSelector = require('../../utils/isStandardSyntaxSelector');
const parseSelector = require('../../utils/parseSelector');
const report = require('../../utils/report');
const ruleMessages = require('../../utils/ruleMessages');
const styleSearch = require('style-search');
const validateOptions = require('../../utils/validateOptions');
const ruleName = 'selector-attribute-brackets-space-inside';
const messages = ruleMessages(ruleName, {
expectedOpening: 'Expected single space after "["',
rejectedOpening: 'Unexpected whitespace after "["',
expectedClosing: 'Expected single space before "]"',
rejectedClosing: 'Unexpected whitespace before "]"',
});
const rule = function(expectation, options, context) {
return (root, result) => {
const validOptions = validateOptions(result, ruleName, {
actual: expectation,
possible: ['always', 'never'],
});
if (!validOptions) {
return;
}
root.walkRules((rule) => {
if (!isStandardSyntaxRule(rule) || !isStandardSyntaxSelector(rule.selector)) {
return;
}
if (!rule.selector.includes('[')) {
return;
}
const selector = rule.raws.selector ? rule.raws.selector.raw : rule.selector;
let hasFixed;
const fixedSelector = parseSelector(selector, result, rule, (selectorTree) => {
selectorTree.walkAttributes((attributeNode) => {
const attributeSelectorString = attributeNode.toString();
styleSearch({ source: attributeSelectorString, target: '[' }, (match) => {
const nextCharIsSpace = attributeSelectorString[match.startIndex + 1] === ' ';
const index = attributeNode.sourceIndex + match.startIndex + 1;
if (nextCharIsSpace && expectation === 'never') {
if (context.fix) {
hasFixed = true;
fixBefore(attributeNode);
return;
}
complain(messages.rejectedOpening, index);
}
if (!nextCharIsSpace && expectation === 'always') {
if (context.fix) {
hasFixed = true;
fixBefore(attributeNode);
return;
}
complain(messages.expectedOpening, index);
}
});
styleSearch({ source: attributeSelectorString, target: ']' }, (match) => {
const prevCharIsSpace = attributeSelectorString[match.startIndex - 1] === ' ';
const index = attributeNode.sourceIndex + match.startIndex - 1;
if (prevCharIsSpace && expectation === 'never') {
if (context.fix) {
hasFixed = true;
fixAfter(attributeNode);
return;
}
complain(messages.rejectedClosing, index);
}
if (!prevCharIsSpace && expectation === 'always') {
if (context.fix) {
hasFixed = true;
fixAfter(attributeNode);
return;
}
complain(messages.expectedClosing, index);
}
});
});
});
if (hasFixed) {
if (!rule.raws.selector) {
rule.selector = fixedSelector;
} else {
rule.raws.selector.raw = fixedSelector;
}
}
function complain(message, index) {
report({
message,
index,
result,
ruleName,
node: rule,
});
}
});
};
function fixBefore(attributeNode) {
const rawAttrBefore = _.get(attributeNode, 'raws.spaces.attribute.before');
const { attrBefore, setAttrBefore } = rawAttrBefore
? {
attrBefore: rawAttrBefore,
setAttrBefore(fixed) {
attributeNode.raws.spaces.attribute.before = fixed;
},
}
: {
attrBefore: _.get(attributeNode, 'spaces.attribute.before', ''),
setAttrBefore(fixed) {
_.set(attributeNode, 'spaces.attribute.before', fixed);
},
};
if (expectation === 'always') {
setAttrBefore(attrBefore.replace(/^\s*/, ' '));
} else if (expectation === 'never') {
setAttrBefore(attrBefore.replace(/^\s*/, ''));
}
}
function fixAfter(attributeNode) {
let key;
if (attributeNode.operator) {
if (attributeNode.insensitive) {
key = 'insensitive';
} else {
key = 'value';
}
} else {
key = 'attribute';
}
const rawAfter = _.get(attributeNode, `raws.spaces.${key}.after`);
const { after, setAfter } = rawAfter
? {
after: rawAfter,
setAfter(fixed) {
attributeNode.raws.spaces[key].after = fixed;
},
}
: {
after: _.get(attributeNode, `spaces.${key}.after`, ''),
setAfter(fixed) {
_.set(attributeNode, `spaces.${key}.after`, fixed);
},
};
if (expectation === 'always') {
setAfter(after.replace(/\s*$/, ' '));
} else if (expectation === 'never') {
setAfter(after.replace(/\s*$/, ''));
}
}
};
rule.ruleName = ruleName;
rule.messages = messages;
module.exports = rule;