New ErrorParser

Author: eriwen

error-parser.js

@@ -0,0 +1,66 @@
+// TODO: AMD/CommonJS/etc wrapper
+(function() {
+    function ErrorParser() {
+        return {
+            /**
+             * Given an Error object, return the function that
+             * will extract the most information from it.
+             * @param e {Error}
+             * @return Function parser
+             */
+            chooseParser: function(e) {
+                if (e['arguments'] && e.stack) {
+                    return this.parseV8;
+                } else if (e.stack && e.sourceURL) {
+                    return this.parseSAFARI;
+                } else if (e.stack && e.number) {
+                    return this.parseIE;
+                } else if (typeof e.message === 'string' && typeof window !== 'undefined' && window.opera) {
+                    return this.parseOPERA;
+                } else if (e.stack) {
+                    return this.parseFIREFOX;
+                }
+                return this.parseCRAPPY;
+            },
+            parseV8: function(e) {
+                var stack = (e.stack + '\n').replace(/^\S[^\(]+?[\n$]/gm, '').
+                    replace(/^\s+(at eval )?at\s+/gm, '').
+                    replace(/^([^\(]+?)([\n$])/gm, '{anonymous}()@$1$2').
+                    replace(/^Object.<anonymous>\s*\(([^\)]+)\)/gm, '{anonymous}()@$1').split('\n');
+                stack.pop();
+                return stack;
+            },
+            parseSAFARI: function(e) {},
+            parseIE: function(e) {},
+            parseFIREFOX: function(e) {},
+            parseOPERA: function(e) {
+                // e.message.indexOf("Backtrace:") > -1 -> opera
+                // !e.stacktrace -> opera
+                if (!e.stacktrace) {
+                    return 'opera9'; // use e.message
+                }
+                // 'opera#sourceloc' in e -> opera9, opera10a
+                if (e.message.indexOf('\n') > -1 && e.message.split('\n').length > e.stacktrace.split('\n').length) {
+                    return 'opera9'; // use e.message
+                }
+                // e.stacktrace && !e.stack -> opera10a
+                if (!e.stack) {
+                    return 'opera10a'; // use e.stacktrace
+                }
+                // e.stacktrace && e.stack -> opera10b
+                if (e.stacktrace.indexOf("called from line") < 0) {
+                    return 'opera10b'; // use e.stacktrace, format differs from 'opera10a'
+                }
+                // e.stacktrace && e.stack -> opera11
+                return 'opera11'; // use e.stacktrace, format differs from 'opera10a', 'opera10b'
+            },
+            parseCRAPPY: function(e) {}
+        };
+    }
+
+    Error.prototype.parseError = function parseError(e) {
+
+    };
+
+    window.ErrorParser = ErrorParser;
+})();