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FLocal/Core/Util.cs

144 lines
4.2 KiB

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace FLocal.Core {
public class Util {
private static bool? _isRunningOnMono;
public static bool isRunningOnMono {
get {
if(!_isRunningOnMono.HasValue) {
_isRunningOnMono = (Type.GetType("Mono.Runtime") != null);
}
return _isRunningOnMono.Value;
}
}
public static bool string2bool(string _val) {
switch(_val.ToLower()) {
case "y":
case "yes":
case "true":
case "enabled":
case "on":
case "1":
return true;
case "n":
case "no":
case "false":
case "disabled":
case "off":
case "0":
return false;
default:
throw new FLocalException("Cannot parse string '" + _val + "'; try to use 'n' or 'y'");
}
}
public static T string2enum<T>(string value) {
return (T)System.Enum.Parse(typeof(T), value);
}
public static void CheckEmail(string email) {
if(!email.Contains('@') || !email.Contains('.')) throw new FLocalException("Wrong email '" + email + "'");
}
public static Predicate<string> PhoneValidator {
get {
return phone => {
return true;
};
}
}
public static T EnumParse<T>(string name) {
return (T)Enum.Parse(typeof(T), name, true);
}
public static IEnumerable<int> Range(int start, int count, int step) {
if(step == 0) {
throw new FLocalException("Step could not be equal to zero");
}
for(int i=0; i<count; i++) {
yield return start + (i*count);
}
}
public static IEnumerable<int> Range(int start, int count) {
return Range(start, count, 1);
}
public static IEnumerable<T> CreateList<T>(int length, Func<int, T> creator) {
return from i in Range(0, length) select creator(i);
}
public static IEnumerable<T> CreateList<T>(int length, Func<T> creator) {
return CreateList<T>(length, num => creator());
}
private static readonly Random RandomGenerator = new Random();
public static int RandomInt(int gethan, int lessthan) {
return RandomGenerator.Next(gethan, lessthan);
}
public enum RandomSource {
LETTERS,
LETTERS_DIGITS,
CYRILLIC,
}
private static Dictionary<RandomSource, string> randoms = new Dictionary<RandomSource,string> {
{ RandomSource.LETTERS, "abcdefghijklmnopqrstuvwxyz" },
{ RandomSource.LETTERS_DIGITS, "abcdefghijklmnopqrstuvwxyz0123456789" },
{ RandomSource.CYRILLIC, "абвгдеёжзийклмнопрстуфхцчшщьыъэюя" },
};
public static string RandomString(int length, RandomSource source) {
return new String(
CreateList(length, (
(Func<string, char>)(str => str[RandomInt(0, str.Length)])
).Curry(
randoms[source]
)).ToArray()
);
}
public static string RandomString(int length) {
return RandomString(length, RandomSource.LETTERS);
}
public static int? ParseInt(string raw) {
if(raw == "") {
return null;
} else {
return int.Parse(raw);
}
}
public static DateTime? ParseDateTimeFromTimestamp(string raw) {
if(raw == "") {
return null;
} else {
long timestamp = long.Parse(raw);
if(timestamp < 1) {
return null;
} else {
return new DateTime(timestamp);
}
}
}
public static string EOL {
get {
return new string(new char[] { (char)0x0d, (char)0x0a });
}
}
}
}