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Code

Regex to TryParse

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This commit is contained in:
AVK Naidu 2018-02-13 05:45:13 +05:30
parent f20a2c29fd
commit 8ddf86d948
1 changed files with 3 additions and 4 deletions

7
Microsoft.Toolkit/Extensions/StringExtensions.cs
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@ -10,6 +10,7 @@
// THE CODE OR THE USE OR OTHER DEALINGS IN THE CODE.
// ******************************************************************
using System.Globalization;
using System.Text.RegularExpressions;
namespace Microsoft.Toolkit.Extensions
@ -19,8 +20,6 @@ namespace Microsoft.Toolkit.Extensions
/// </summary>
public static class StringExtensions
{
internal const string DecimalRegex = "^-?[0-9]{1,28}([.,][0-9]{1,28})?$";
internal const string NumberRegex = "^-?[0-9]{1,9}$";
internal const string PhoneNumberRegex = @"^\s*\+?\s*([0-9][\s-]*){9,}$";
internal const string CharactersRegex = "^[A-Za-z]+$";
internal const string EmailRegex = "(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|\"(?:[\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x21\\x23-\\x5b\\x5d-\\x7f]|\\\\[\\x01-\\x09\\x0b\\x0c\\x0e-\\x7f])*\")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x21-\\x5a\\x53-\\x7f]|\\\\[\\x01-\\x09\\x0b\\x0c\\x0e-\\x7f])+)\\])";
@ -41,7 +40,7 @@ public static bool IsEmail(this string str)
/// <returns><c>true</c> for valid decimal number.<c>false</c> otherwise</returns>
public static bool IsDecimal(this string str)
{
return Regex.IsMatch(str, DecimalRegex);
return decimal.TryParse(str, NumberStyles.Number, CultureInfo.InvariantCulture, out decimal _decimal);
}
/// <summary>
@ -50,7 +49,7 @@ public static bool IsDecimal(this string str)
/// <returns><c>true</c> for valid integer.<c>false</c> otherwise</returns>
public static bool IsNumeric(this string str)
{
return Regex.IsMatch(str, NumberRegex);
return int.TryParse(str, out int _integer);
}
/// <summary>