38 lines
1.0 KiB
Java
38 lines
1.0 KiB
Java
var postcss = require('postcss');
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var charset = 'charset';
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module.exports = postcss.plugin('postcss-normalize-' + charset, function (opts) {
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opts = opts || {};
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return function (css) {
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var charsetRule;
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var nonAsciiNode;
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var nonAscii = /[^\x00-\x7F]/;
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css.walk(function (node) {
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if (node.type === 'atrule' && node.name === charset) {
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if (!charsetRule) {
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charsetRule = node;
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}
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node.remove();
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} else if (!nonAsciiNode && node.parent === css && nonAscii.test(node)) {
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nonAsciiNode = node;
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}
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});
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if (nonAsciiNode) {
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if (!charsetRule && opts.add !== false) {
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charsetRule = postcss.atRule({
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name: charset,
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params: '"utf-8"'
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});
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}
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if (charsetRule) {
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charsetRule.source = nonAsciiNode.source;
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css.prepend(charsetRule);
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}
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}
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};
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});
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