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node_modules/postcss-ordered-values/src/rules/columns.js

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+'use strict';
+const { unit } = require('postcss-value-parser');
+
+/**
+ * @param {string} value
+ * @return {boolean}
+ */
+function hasUnit(value) {
+  const parsedVal = unit(value);
+  return parsedVal && parsedVal.unit !== '';
+}
+
+/**
+ * @param {import('postcss-value-parser').ParsedValue} columns
+ * @return {import('postcss-value-parser').ParsedValue | string}
+ */
+module.exports = (columns) => {
+  /** @type {string[]} */
+  const widths = [];
+  /** @type {string[]} */
+  const other = [];
+  columns.walk((node) => {
+    const { type, value } = node;
+    if (type === 'word') {
+      if (hasUnit(value)) {
+        widths.push(value);
+      } else {
+        other.push(value);
+      }
+    }
+  });
+
+  // only transform if declaration is not invalid or a single value
+  if (other.length === 1 && widths.length === 1) {
+    return `${widths[0].trimStart()} ${other[0].trimStart()}`;
+  }
+
+  return columns;
+};