117 lines
4.6 KiB
JavaScript
Executable file
117 lines
4.6 KiB
JavaScript
Executable file
'use strict';
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function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }
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var postcss = _interopDefault(require('postcss'));
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var valuesParser = _interopDefault(require('postcss-values-parser'));
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var index = postcss.plugin('postcss-color-functional-notation', opts => {
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const preserve = 'preserve' in Object(opts) ? Boolean(opts.preserve) : false;
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return root => {
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root.walkDecls(decl => {
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const originalValue = decl.value;
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if (colorAnyRegExp.test(originalValue)) {
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const valueAST = valuesParser(originalValue).parse();
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valueAST.walkType('func', node => {
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if (colorRegExp.test(node.value)) {
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const children = node.nodes.slice(1, -1);
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const isFunctionalHSL = matchFunctionalHSL(node, children);
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const isFunctionalRGB1 = matchFunctionalRGB1(node, children);
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const isFunctionalRGB2 = matchFunctionalRGB2(node, children);
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if (isFunctionalHSL || isFunctionalRGB1 || isFunctionalRGB2) {
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const slashNode = children[3];
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const alphaNode = children[4];
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if (alphaNode) {
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if (isPercentage(alphaNode) && !isCalc(alphaNode)) {
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alphaNode.unit = '';
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alphaNode.value = String(alphaNode.value / 100);
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}
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if (isHslRgb(node)) {
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node.value += 'a';
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}
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} else if (isHslaRgba(node)) {
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node.value = node.value.slice(0, -1);
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}
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if (slashNode && isSlash(slashNode)) {
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slashNode.replaceWith(newComma());
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}
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if (isFunctionalRGB2) {
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children[0].unit = children[1].unit = children[2].unit = '';
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children[0].value = String(Math.floor(children[0].value * 255 / 100));
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children[1].value = String(Math.floor(children[1].value * 255 / 100));
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children[2].value = String(Math.floor(children[2].value * 255 / 100));
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}
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node.nodes.splice(3, 0, [newComma()]);
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node.nodes.splice(2, 0, [newComma()]);
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}
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}
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});
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const modifiedValue = String(valueAST);
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if (modifiedValue !== originalValue) {
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if (preserve) {
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decl.cloneBefore({
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value: modifiedValue
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});
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} else {
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decl.value = modifiedValue;
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}
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}
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}
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});
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};
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});
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const alphaUnitMatch = /^%?$/i;
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const calcFuncMatch = /^calc$/i;
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const colorAnyRegExp = /(^|[^\w-])(hsla?|rgba?)\(/i;
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const colorRegExp = /^(hsla?|rgba?)$/i;
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const hslishRegExp = /^hsla?$/i;
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const hslRgbFuncMatch = /^(hsl|rgb)$/i;
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const hslaRgbaFuncMatch = /^(hsla|rgba)$/i;
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const hueUnitMatch = /^(deg|grad|rad|turn)?$/i;
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const rgbishRegExp = /^rgba?$/i;
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const isAlphaValue = node => isCalc(node) || node.type === 'number' && alphaUnitMatch.test(node.unit);
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const isCalc = node => node.type === 'func' && calcFuncMatch.test(node.value);
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const isHue = node => isCalc(node) || node.type === 'number' && hueUnitMatch.test(node.unit);
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const isNumber = node => isCalc(node) || node.type === 'number' && node.unit === '';
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const isPercentage = node => isCalc(node) || node.type === 'number' && (node.unit === '%' || node.unit === '' && node.value === '0');
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const isHslish = node => node.type === 'func' && hslishRegExp.test(node.value);
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const isHslRgb = node => node.type === 'func' && hslRgbFuncMatch.test(node.value);
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const isHslaRgba = node => node.type === 'func' && hslaRgbaFuncMatch.test(node.value);
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const isRgbish = node => node.type === 'func' && rgbishRegExp.test(node.value);
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const isSlash = node => node.type === 'operator' && node.value === '/';
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const functionalHSLMatch = [isHue, isPercentage, isPercentage, isSlash, isAlphaValue];
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const functionalRGB1Match = [isNumber, isNumber, isNumber, isSlash, isAlphaValue];
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const functionalRGB2Match = [isPercentage, isPercentage, isPercentage, isSlash, isAlphaValue];
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const matchFunctionalHSL = (node, children) => isHslish(node) && children.every((child, index) => typeof functionalHSLMatch[index] === 'function' && functionalHSLMatch[index](child));
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const matchFunctionalRGB1 = (node, children) => isRgbish(node) && children.every((child, index) => typeof functionalRGB1Match[index] === 'function' && functionalRGB1Match[index](child));
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const matchFunctionalRGB2 = (node, children) => isRgbish(node) && children.every((child, index) => typeof functionalRGB2Match[index] === 'function' && functionalRGB2Match[index](child));
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const newComma = () => valuesParser.comma({
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value: ','
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});
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module.exports = index;
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//# sourceMappingURL=index.cjs.js.map
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