module.exports = function postcssPrefixSelector(options) {
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const prefix = options.prefix;
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const prefixWithSpace = /\s+$/.test(prefix) ? prefix : `${prefix} `;
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const ignoreFiles = options.ignoreFiles ? [].concat(options.ignoreFiles) : [];
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const includeFiles = options.includeFiles
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? [].concat(options.includeFiles)
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: [];
|
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return function (root) {
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if (
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ignoreFiles.length &&
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root.source.input.file &&
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isFileInArray(root.source.input.file, ignoreFiles)
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) {
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return;
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}
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if (
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includeFiles.length &&
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root.source.input.file &&
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!isFileInArray(root.source.input.file, includeFiles)
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) {
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return;
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}
|
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root.walkRules((rule) => {
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const keyframeRules = [
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'keyframes',
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'-webkit-keyframes',
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'-moz-keyframes',
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'-o-keyframes',
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];
|
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if (rule.parent && keyframeRules.includes(rule.parent.name)) {
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return;
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}
|
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rule.selectors = rule.selectors.map((selector) => {
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if (options.exclude && excludeSelector(selector, options.exclude)) {
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return selector;
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}
|
|
if (options.transform) {
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return options.transform(
|
prefix,
|
selector,
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prefixWithSpace + selector,
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root.source.input.file,
|
rule
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);
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}
|
|
return prefixWithSpace + selector;
|
});
|
});
|
};
|
};
|
|
function isFileInArray(file, arr) {
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return arr.some((ruleOrString) => {
|
if (ruleOrString instanceof RegExp) {
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return ruleOrString.test(file);
|
}
|
|
return file.includes(ruleOrString);
|
});
|
}
|
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function excludeSelector(selector, excludeArr) {
|
return excludeArr.some((excludeRule) => {
|
if (excludeRule instanceof RegExp) {
|
return excludeRule.test(selector);
|
}
|
|
return selector === excludeRule;
|
});
|
}
|
