ui

app/code/node_modules/resolve-url-loader/lib/position-algerbra.js

@@ -0,0 +1,62 @@
+/*
+ * MIT License http://opensource.org/licenses/MIT
+ * Author: Ben Holloway @bholloway
+ */
+'use strict';
+
+/**
+ * Given a sourcemap position create a new maybeObject with only line and column properties.
+ *
+ * @param {*|{line: number, column: number}} maybeObj Possible location hash
+ * @returns {{line: number, column: number}} Location hash with possible NaN values
+ */
+function sanitise(maybeObj) {
+  var obj = !!maybeObj && typeof maybeObj === 'object' && maybeObj || {};
+  return {
+    line: isNaN(obj.line) ? NaN : obj.line,
+    column: isNaN(obj.column) ? NaN : obj.column
+  };
+}
+
+exports.sanitise = sanitise;
+
+/**
+ * Infer a line and position delta based on the linebreaks in the given string.
+ *
+ * @param candidate {string} A string with possible linebreaks
+ * @returns {{line: number, column: number}} A position object where line and column are deltas
+ */
+function strToOffset(candidate) {
+  var split = candidate.split(/\r\n|\n/g);
+  var last  = split[split.length - 1];
+  return {
+    line: split.length - 1,
+    column: last.length
+  };
+}
+
+exports.strToOffset = strToOffset;
+
+/**
+ * Add together a list of position elements.
+ *
+ * Lines are added. If the new line is zero the column is added otherwise it is overwritten.
+ *
+ * @param {{line: number, column: number}[]} list One or more sourcemap position elements to add
+ * @returns {{line: number, column: number}} Resultant position element
+ */
+function add(list) {
+  return list
+    .slice(1)
+    .reduce(
+      function (accumulator, element) {
+        return {
+          line: accumulator.line + element.line,
+          column: element.line > 0 ? element.column : accumulator.column + element.column,
+        };
+      },
+      list[0]
+    );
+}
+
+exports.add = add;