initial commit

node_modules/postcss-calc/dist/lib/transform.js

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+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _postcssSelectorParser = _interopRequireDefault(require("postcss-selector-parser"));
+
+var _postcssValueParser = _interopRequireDefault(require("postcss-value-parser"));
+
+var _parser = require("../parser");
+
+var _reducer = _interopRequireDefault(require("./reducer"));
+
+var _stringifier = _interopRequireDefault(require("./stringifier"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+// eslint-disable-next-line import/no-unresolved
+var MATCH_CALC = /((?:-(moz|webkit)-)?calc)/i;
+
+function transformValue(value, options, result, item) {
+  return (0, _postcssValueParser.default)(value).walk(function (node) {
+    // skip anything which isn't a calc() function
+    if (node.type !== 'function' || !MATCH_CALC.test(node.value)) return node; // stringify calc expression and produce an AST
+
+    var contents = _postcssValueParser.default.stringify(node.nodes);
+
+    var ast = _parser.parser.parse(contents); // reduce AST to its simplest form, that is, either to a single value
+    // or a simplified calc expression
+
+
+    var reducedAst = (0, _reducer.default)(ast, options.precision, item); // stringify AST and write it back
+
+    node.type = 'word';
+    node.value = (0, _stringifier.default)(node.value, reducedAst, value, options, result, item);
+  }, true).toString();
+}
+
+function transformSelector(value, options, result, item) {
+  return (0, _postcssSelectorParser.default)(function (selectors) {
+    selectors.walk(function (node) {
+      // attribute value
+      // e.g. the "calc(3*3)" part of "div[data-size="calc(3*3)"]"
+      if (node.type === 'attribute' && node.value) {
+        node.setValue(transformValue(node.value, options, result, item));
+      } // tag value
+      // e.g. the "calc(3*3)" part of "div:nth-child(2n + calc(3*3))"
+
+
+      if (node.type === 'tag') node.value = transformValue(node.value, options, result, item);
+      return;
+    });
+  }).processSync(value);
+}
+
+var _default = function _default(node, property, options, result) {
+  var value = property === "selector" ? transformSelector(node[property], options, result, node) : transformValue(node[property], options, result, node); // if the preserve option is enabled and the value has changed, write the
+  // transformed value into a cloned node which is inserted before the current
+  // node, preserving the original value. Otherwise, overwrite the original
+  // value.
+
+  if (options.preserve && node[property] !== value) {
+    var clone = node.clone();
+    clone[property] = value;
+    node.parent.insertBefore(node, clone);
+  } else node[property] = value;
+};
+
+exports.default = _default;
+module.exports = exports.default;