Brackets scriptlet to anonymize all the strings in a JS file, without changing its length or formatting

gistfile1.js

        function makeFiller(len) {
            var str = "";
            var i;
            for (i = 0; i < len; i++) {
                var mod = i % 10;
                if (mod) {
                    str += mod;
                } else {
                    mod = (i / 10) % 10;
                    str += mod;
                }
            }
            return str;
        }
        
        var currentEditor = EditorManager.getActiveEditor();
        var doc = currentEditor.document;
        doc.batchOperation(function () {
            var i;
            var stringDelim;
            function processCode() {
                for (; i < line.length; i++) {
                    var ch = line[i];
                    if (ch === '"' || ch === "'") {
                        i++; // eat the opening quote
                        return ch;
                    }
                }
            }
            function processString(delim) {
                var stringStart = i;
                for (; i < line.length; i++) {
                    var ch = line[i];
                    if (ch === "\\") {
                        i++; // skip whatever's next
                    } else if (ch === delim) {
                        // reached end of string literal: replace it with filler
                        var subst = makeFiller(i - stringStart);
                        doc.replaceRange(subst, { line: lineI, ch: stringStart }, { line: lineI, ch: i });
                        i++; // eat the closing quote
                        return;
                    }
                }
            }
            
            var lineI;
            for (lineI = 0; lineI < currentEditor.lineCount(); lineI++) {
                var line = doc.getLine(lineI);
                i = 0;
                stringDelim = null;
                
                while (i < line.length) {
                    if (stringDelim) {
                        processString(stringDelim);
                        stringDelim = null;
                    } else {
                        stringDelim = processCode();
                    }
                }
            }
        });