[fixed] logger.logError is now truly cross platform and cross brows…

…er, with a cleaner stack trace

interfaces/clean-stack.js

@@ -0,0 +1,5 @@
+/* @flow */
+
+declare module 'clean-stack' {
+  declare function exports(stack: string): string;
+}

interfaces/error-stack-parser.js

@@ -0,0 +1,12 @@
+/* @flow */
+
+declare module 'error-stack-parser' {
+  declare class exports {
+    static parse(error: Error): {
+      functionName?: string;
+      fileName: string;
+      lineNumber: number;
+      columnNumber: number;
+    };
+  }
+}

src/logger.js

@@ -1,16 +1,14 @@
 /* @flow */
 
 import type {LintError, ConsoleStyleConfig, PostCSSWarning, NodeSassError} from './typedef';
-import {sep} from 'path';
 import forEach from 'lodash/forEach';
 import map from 'lodash/map';
 import transform from 'lodash/transform';
+import ErrorStackParser from 'error-stack-parser';
+import cleanStack from 'clean-stack';
 
 /* eslint-disable no-console */
 
-const pattern  = /at (?:(.*) )?\(?([^(]*):(\d+):(\d+)\)?$/,
-  separatorPattern = new RegExp(sep.replace('\\', '\\\\'));
-
 /**
  * Dead-simple, composable, isomorphic, cross-browser wrapper for `console.log`.
  *
@@ -323,23 +321,16 @@ export function log(...messages: Array<string | number | Message>) {
  *
  * logError(new Error('Some error message'));
  */
-export function logError({message, stack}: Error) {
-  const lines = stack.split('\n'),
-    {length} = lines;
-
-  log(formatErrorMarker(), ': ', message);
+export function logError(error: Error) {
+  const {name, message, stack} = error;
 
-  for (let i = 1; i < length; ++i) {
-    const parts = lines[i].match(pattern);
+  log(formatErrorMarker(name), ': ', message);
 
-    if (parts) {
-      const [, method, file, line, column] = parts;
+  error.stack = cleanStack(stack);
 
-      if (separatorPattern.test(file)) {
-        log('  • ', ...formatLine(method || 'unknown', file, line, column));
-      }
-    }
-  }
+  forEach(ErrorStackParser.parse(error), ({functionName = 'unknown', fileName, lineNumber, columnNumber}) => {
+    log('  • ', ...formatLine(functionName, fileName, lineNumber, columnNumber));
+  });
 }
 
 /**