using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^([\s]+)?(var|let|const)?([\s]+)?([a-z=\s]+)(\()(.+)?(\))([\s]+)?([\n]+)?(\{)";
string input = @"function func (foo) {}
var func = function() {}
function func () {
}
var func = function() {
}
function func ()
{
}
var func = function()
{
}
function func () {}
var func = function() {}
function func () {
}
var func = function() {
}
function func ()
{
}
var func = function()
{
}
function func () {}
var func = function() {}
function func () {
}
var func = function() {
}
function func ()
{
}
var func = function()
{
}";
RegexOptions options = RegexOptions.Multiline | RegexOptions.IgnoreCase;
foreach (Match m in Regex.Matches(input, pattern, options))
{
Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index);
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx