initial commit

node_modules/postcss-merge-longhand/dist/lib/parseWsc.js

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+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+exports.default = parseWsc;
+
+var _postcss = require('postcss');
+
+var _validateWsc = require('./validateWsc');
+
+const none = /^\s*(none|medium)(\s+none(\s+(none|currentcolor))?)?\s*$/i;
+
+const varRE = /(^.*var)(.*\(.*--.*\))(.*)/i;
+const varPreserveCase = p => `${p[1].toLowerCase()}${p[2]}${p[3].toLowerCase()}`;
+const toLower = v => {
+    const match = varRE.exec(v);
+    return match ? varPreserveCase(match) : v.toLowerCase();
+};
+
+function parseWsc(value) {
+    if (none.test(value)) {
+        return ['medium', 'none', 'currentcolor'];
+    }
+
+    let width, style, color;
+
+    const values = _postcss.list.space(value);
+
+    if (values.length > 1 && (0, _validateWsc.isStyle)(values[1]) && values[0].toLowerCase() === 'none') {
+        values.unshift();
+        width = '0';
+    }
+
+    const unknown = [];
+
+    values.forEach(v => {
+        if ((0, _validateWsc.isStyle)(v)) {
+            style = toLower(v);
+        } else if ((0, _validateWsc.isWidth)(v)) {
+            width = toLower(v);
+        } else if ((0, _validateWsc.isColor)(v)) {
+            color = toLower(v);
+        } else {
+            unknown.push(v);
+        }
+    });
+
+    if (unknown.length) {
+        if (!width && style && color) {
+            width = unknown.pop();
+        }
+
+        if (width && !style && color) {
+            style = unknown.pop();
+        }
+
+        if (width && style && !color) {
+            color = unknown.pop();
+        }
+    }
+
+    return [width, style, color];
+}
+module.exports = exports['default'];