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44 行
1.1 KiB

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
// Convenience functions for strings
public static class StringExtensionMethods
{
public static string AfterLast(this string str, string sub)
{
var idx = str.LastIndexOf(sub);
return idx < 0 ? "" : str.Substring(idx + sub.Length);
}
public static string BeforeLast(this string str, string sub)
{
var idx = str.LastIndexOf(sub);
return idx < 0 ? "" : str.Substring(0, idx);
}
public static string AfterFirst(this string str, string sub)
{
var idx = str.IndexOf(sub);
return idx < 0 ? "" : str.Substring(idx + sub.Length);
}
public static string BeforeFirst(this string str, string sub)
{
var idx = str.IndexOf(sub);
return idx < 0 ? "" : str.Substring(0, idx);
}
public static int PrefixMatch(this string str, string prefix)
{
int l = 0, slen = str.Length, plen = prefix.Length;
while(l<slen && l<plen)
{
if (str[l] != prefix[l])
break;
l++;
}
return l;
}
}