RegExp verbose mode in Dart

Overview

This package contains a single function verbose(String) → String that can be used to simulate the verbose mode known from other RegEx implementations like python. This function will simply remove all unescaped whitespace and line comments and return a purged Dart regular expression that you can pass to the RegExp constructor.

Usage

import 'package:verbose_regexp/verbose_regexp.dart';

var a = new RegExp(verbose(r'''
  \d +  # the integral part
  \.    # the decimal point
  \d *  # some fractional digits'''));

var b = new RegExp(r'\d+\.\d*');

void main() {
  assert(a == b);
}