Lets you find everything between "{" and "}" - CSharp System

CSharp examples for System:String Match

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Description

Lets you find everything between "{" and "}"

Demo Code

// file, You can obtain one at http://www.apache.org/licenses/
using System.Text.RegularExpressions;
using System.Text;
using System.Linq;
using System.Collections.Generic;
using System;//ww  w  .ja  va  2  s . c  om

public class Main{
        /// <summary>
		/// Lets you find everything between say "{" and "}", except that we allow
		/// ")" if they are proceeded by a "(" (exceptFor)
		/// </summary>
		/// <param name="findStart"></param>
		/// <param name="findEnd"></param>
		/// <param name="searchIn"></param>
		/// <param name="pos"></param>
		/// <returns></returns>
		public static string FindBetweenBalanced(this string searchIn, string findStart, string findEnd,  ref int pos) {
			StringBuilder sb = new StringBuilder();
			int balancer = 0;

			// Get to the start first up...
			while (pos <= searchIn.Length - findStart.Length) {
				if (searchIn.Substring(pos, findStart.Length) == findStart) {
					pos++;
					break;
				}
				pos++;
			}
			if (pos == searchIn.Length) {
				// Unable to find the start position
				return null;
			}

			while (pos <= searchIn.Length - findEnd.Length) {

				if (searchIn.Substring(pos, findEnd.Length) == findEnd) {
					if (balancer == 0) {
						return sb.ToString();
					} else {
						balancer--;
					}
				}

				if (searchIn.Substring(pos, findStart.Length) == findStart) {
					balancer++;
				}

				sb.Append(searchIn[pos]);
				pos++;
			}

			// Didn't find it.
			return null;
		}
}

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