public IgnoreCase(IgnoreCase? value)
{
if (value.HasValue)
Value = value.Value;
else
Value = No.Value;
}
public static string EnsureReplace(this string cad,string search,string newstring,int minreplaces,out int totalreplaces,int maxreplaces = int.MaxValue,int fromindex=0,IgnoreCase? ignorecase=null)
{
if (minreplaces < 0) throw new ArgumentException("MinReplaces is negative.");
if (minreplaces > maxreplaces) throw new ArgumentException("MinReplaces is greater than MaxReplaces.");
var res = ReplaceCount(cad, search, newstring, out totalreplaces, maxreplaces, fromindex, ignorecase);
if (totalreplaces < minreplaces) return null; else return res;
}
public static bool GetTokenRight(out string Token, IEnumerable<string> separator, ref string cad, IgnoreCase? ignorecase = null)
{
var p = cad.LastIndexOfSymbol(separator, ignorecase);
if (p == null)
{
Token = null;
return false;
}
Token = cad.Substring(p.Item1 + p.Item2.Length);
cad = cad.Substring(0, p.Item1);
return true;
}
public static int LastIndexOf(this string cad, IEnumerable<string> symbols, IgnoreCase? ignorecase = null)
{
var res = LastIndexOfSymbol(cad, symbols, ignorecase);
return res?.Item1 ?? -1;
}
public static Tuple<int, string> LastIndexOfSymbol(this string cad, IEnumerable<string> symbols, IgnoreCase? ignorecase = null)
{
var res = symbols.Select(s => Tuple.Create(cad.LastIndexOf(s, new IgnoreCase(ignorecase)), s)).Where(i => i.Item1 >= 0).OrderByDescending(i => i.Item1).ToArray();
if (res.Length <= 0) return null;
return res[0];
}
public static string SymbolInPos(this string cad,int pos,IEnumerable<string> symbols,IgnoreCase? ignorecase=null)
{
if ((pos < 0) || (pos >= cad.Length)) return null;
cad = cad.Substring(pos);
foreach(var s in symbols)
{
if (cad.StartsWith(s,new IgnoreCase(ignorecase))) return s;
}
return null;
}
public static string RightToFar(this string cad, string left, bool forceifnotfound = false, IgnoreCase? ignorecase = null)
{
return _Between(cad, left, null, true,true, forceifnotfound, ignorecase);
}
private static string _Between(this string cad,string left,string right,bool farleft,bool farright,bool forceifnotfound=false, IgnoreCase? ignorecase=null)
{
if (string.IsNullOrEmpty(cad)) return null;
var c = new IgnoreCase(ignorecase);
var il = 0;
var ir = cad.Length-1;
if (!string.IsNullOrEmpty(left))
{
il = (farleft) ? cad.LastIndexOf(left,c) : cad.IndexOf(left,c);
if (il >= 0)
il += left.Length;
else
if (forceifnotfound) il = 0;
}
if (!string.IsNullOrEmpty(right))
{
ir = (farright)? cad.LastIndexOf(right, c):cad.IndexOf(right,c);
if (ir >= 0)
ir -= 1;
else if (forceifnotfound) ir = cad.Length - 1;
}
if ((il < 0) || (ir < 0)) return null;
return cad.Between(il, ir);
}
public static string RemoveMany(this string cad, string search, int maxreplaces, IgnoreCase? ignorecase=null) => cad.ReplaceN(search, "", maxreplaces, 0, ignorecase);
public static string RemoveAll(this string cad, string search, int fromindex = 0, IgnoreCase? ignorecase = null) => cad.ReplaceN(search, "", int.MaxValue, fromindex, ignorecase);
public static string RemoveAll(this string cad, string search, out int totalreplaces, IgnoreCase ignorecase) => cad.ReplaceCount(search, "", out totalreplaces, int.MaxValue, 0, ignorecase);
public static string RemoveAll(this string cad, string search, out int totalreplaces,int fromindex = 0, IgnoreCase? ignorecase = null) => cad.ReplaceCount(search, "", out totalreplaces, int.MaxValue, fromindex, ignorecase);
public static string ReplaceOne(this string cad, string search, string newstring, int fromindex = 0,IgnoreCase? ignorecase = null) => cad.ReplaceN(search, newstring,1,fromindex,ignorecase);
public static string EnsureReplace(this string cad, string search, string newstring,IgnoreCase? ignorecase = null)
{
int t;
return EnsureReplace(cad, search, newstring, 1, out t, int.MaxValue, 0, ignorecase);
}
public static string EnsureReplace(this string cad, string search, string newstring, out int totalreplaces, int maxreplaces = int.MaxValue, int fromindex = 0, IgnoreCase? ignorecase = null)
{
return EnsureReplace(cad, search, newstring, 1,out totalreplaces,maxreplaces, fromindex, ignorecase);
}
public static bool StartsWith(this string cad,string[] starts,bool trim=true,IgnoreCase? ignorecase=null)
{
var c = (trim) ? cad.TrimStart() : cad;
foreach (var s in starts)
if (c.StartsWith(s,new IgnoreCase(ignorecase))) return true;
return false;
}
public static bool EndsWith(this string cad, string[] ends, bool trim = true,IgnoreCase? ignorecase=null)
{
var c = (trim) ? cad.TrimEnd() : cad;
foreach (var s in ends)
if (c.EndsWith(c,new IgnoreCase(null))) return true;
return false;
}
public static string RemoveOne(this string cad, string search, int fromindex = 0,IgnoreCase? ignorecase = null) => cad.RemoveMany(search,1, fromindex,ignorecase);
public static string LeftTo(this string cad,string right,bool forceifnotfound=false,IgnoreCase? ignorecase= null)
{
return _Between(cad, null, right, false, false, forceifnotfound, ignorecase);
}
public static string RemoveOne(this string cad, string search, IgnoreCase ignorecase) => cad.RemoveMany(search, 1, 0, ignorecase);
public static bool EqualsCase(this string cad,string other,IgnoreCase? ignorecase=null)
{
if (cad == null) return (other == null);
return cad.Equals(other, new IgnoreCase(ignorecase));
}
public static string ReplaceLeft(this string cad,string search,string newstring,IgnoreCase ignorecase)
{
var Cad = cad ?? "";
if (Cad.StartsWith(search, ignorecase))
return newstring+Cad.Substring(search.Length);
else
return Cad;
}
public static string ReplaceAll(this string cad,IDictionary<string,string> dic,IgnoreCase? ignorecase= null)
{
foreach(var e in dic)
{
cad = cad.ReplaceAll(e.Key, e.Value, new IgnoreCase(ignorecase));
}
return cad;
}
public static string ReplaceRight(this string cad, string search, string newstring, IgnoreCase ignorecase)
{
var Cad = cad ?? "";
if (Cad.EndsWith(search, ignorecase))
return Cad.Substring(search.Length)+newstring;
else
return Cad;
}
public static string ReplaceOneRight(this string cad, string search, string newstring,IgnoreCase ignorecase,int fromindex=int.MaxValue)
{
if (string.IsNullOrEmpty(cad)) return cad??"";
var p = cad.LastIndexOf(search,ignorecase);
if (p >= fromindex) return cad;
if (p>=0)
return cad.Substring(0, p) + newstring + cad.Substring(p + search.Length);
else
return cad;
}
public static string RemoveRight(this string cad, string search, IgnoreCase ignorecase) => cad.ReplaceRight(search, "", ignorecase);
public static Tuple<int, string> LastIndexOfSymbol(this string cad, string symbols, IgnoreCase? ignorecase = null) => LastIndexOfSymbol(cad, new[] { symbols }, ignorecase);
public static string RemoveOneRight(this string cad, string search, IgnoreCase? ignorecase = null) => cad.ReplaceOneRight(search, "", new IgnoreCase(ignorecase));
public static bool ContainsCase(this string cad,string search,IgnoreCase? ignorecase= null)
{
var p = cad.IndexOf(search, new IgnoreCase(ignorecase));
return p >= 0;
}
public static string SafeReplace(this string cad, string search, string newstring, IgnoreCase ignorecase)
{
return ReplaceN(cad, search, newstring, int.MaxValue, 0, ignorecase);
}