又是在www.asp.net上找到的.因为其很简单并且作者也是直接了当把代码拿上来了,所以就不翻译了
代码如下
using System;
using System.Collections.Generic;
using System.Text;
using System.Text.RegularExpressions;
namespace CoreWebLibrary.Text.RegularExpressions
{
/**////
/// A utility class containing frequently used Regular Expression Patterns
/// and two utility methods to see if a passed string conforms to the designated
/// pattern.
///
public class Patterns
{
public const string EMAIL = @"^([0-9a-zA-Z]+[-._+&])*[0-9a-zA-Z]+@([-0-9a-zA-Z]+[.])+[a-zA-Z]{2,6}$" ;
public const string US_ZIPCODE = @"^\d{5}$" ;
public const string US_ZIPCODE_PLUS_FOUR = @"^\d{5}((-|\s)?\d{4})$";
public const string US_ZIPCODE_PLUS_FOUR_OPTIONAL = @"^\d{5}((-|\s)?\d{4})?$" ;
/**////
/// Permissive US Telephone Regex. Does not allow extensions.
///
///
/// Allows: 324-234-3433, 3242343434, (234)234-234, (234) 234-2343
///
public const string US_TELEPHONE = @"^([\(]{1}[0-9]{3}[\)]{1}[\.| |\-]{0,1}|^[0-9]{3}[\.|\-| ]?)?[0-9]{3}(\.|\-| )?[0-9]{4}$";
/**////
/// This matches a url in the generic format
/// scheme://authority/path?query#fragment
///
///
/// Allows: http://www.yahoo.com, https://www.yahoo.com, ftp://www.yahoo.com
///
public const string URL = @"^(?
/**////
/// This matches an ip address in the format xxx-xxx-xxx-xxx
/// each group of xxx must be less than or equal to 255
///
///
/// Allows: 123.123.123.123, 192.168.1.1
///
public const string IP_ADDRESS = @"^(?
/**////
/// This matches a date in the format mm/dd/yy
///
///
/// Allows: 01/05/05, 12/30/99, 04/11/05
/// Does not allow: 01/05/2000, 2/2/02
///
public const string DATE_MM_DD_YY = @"^(1[0-2]|0[1-9])/(([1-2][0-9]|3[0-1]|0[1-9])/\d\d)$";
/**////
/// This matches a date in the format mm/yy
///
///
/// Allows: 01/05, 11/05, 04/99
/// Does not allow: 1/05, 13/05, 00/05
///
public const string DATE_MM_YY = @"^((0[1-9])|(1[0-2]))\/(\d{2})$";
/**////
/// This matches only numbers(no decimals)
///
///
/// Allows: 0, 1, 123, 4232323, 1212322
///
public const string IS_NUMBER_ONLY = @"^([1-9]\d*)$|^0$";
/**////
/// This matches any string with only alpha characters upper or lower case(A-Z)
///
///
/// Allows: abc, ABC, abCd, AbCd
/// Does not allow: A C, abc!, (a,b)
///
public const string IS_ALPHA_ONLY = @"^[a-zA-Z]+$";
/**////
/// This matches any string with only upper case alpha character(A-Z)
///
public const string IS_UPPER_CASE = @"^[A-Z]+$";
/**////
/// This matches any string with only lower case alpha character(A-Z)
///
public const string IS_LOWER_CASE = @"^[a-z]+$";
/**////
/// Ensures the string only contains alpha-numeric characters, and
/// not punctuation, spaces, line breaks, etc.
///
///
/// Allows: ab2c, 112ABC, ab23Cd
/// Does not allow: A C, abc!, a.a
///
public const string IS_ALPHA_NUMBER_ONLY = @"^[a-zA-Z0-9]+$";
/**////
/// Validates US Currency. Requires $ sign
/// Allows for optional commas and decimal.
/// No leading zeros.
///
///
/// Does not allow: $0.10 or 10.00 or 10,000
public const string IS_US_CURRENCY = @"^\$(([1-9]\d*|([1-9]\d{0,2}(\,\d{3})*))(\.\d{1,2})?|(\.\d{1,2}))$|^\$[0](.00)?$";
/**////
/// Matches major credit cards including: Visa (length 16, prefix 4);
/// Mastercard (length 16, prefix 51-55);
/// Diners Club/Carte Blanche (length 14, prefix 36, 38, or 300-305);
/// Discover (length 16, prefix 6011);
/// American Express (length 15, prefix 34 or 37).
/// Saves the card type as a named group to facilitate further validation
/// against a "card type" checkbox in a program.
/// All 16 digit formats are grouped 4-4-4-4 with an optional hyphen or space
/// between each group of 4 digits.
/// The American Express format is grouped 4-6-5 with an optional hyphen or space
/// between each group of digits.
/// Formatting characters must be consistant, i.e. if two groups are separated by a hyphen,
/// all groups must be separated by a hyphen for a match to occur.
///
public const string CREDIT_CARD = @"^(?:(?
/**////
/// Matches social security in the following format xxx-xx-xxxx
/// where x is a number
///
///
/// Allows: 123-45-6789, 232-432-1212
///
public const string SOCIAL_SECURITY = @"^\d{3}-\d{2}-\d{4}$";
/**////
/// Matches x,x where x is a name, spaces are only allowed between comma and name
///
///
/// Allows: christophersen,eric; christophersen, eric
/// Not allowed: christophersen ,eric;
///
public const string NAME_COMMA_NAME = @"^[a-zA-Z]+,\s?[a-zA-Z]+$";
private Patterns()
{
}
/**////
/// Checks to see if the passed input has the passed pattern
///
/// The pattern to use
/// The input to check
///
public static bool HASPattern( string pattern, string input )
{
Regex regEx = new Regex(pattern);
return regEx.IsMatch(input);
}
/**////
/// Checks the passed input to make sure it has all the patterns in the
/// passed patterns array
///
/// Array of patterns
/// String value to check
///
public static bool HASPatterns(string[] patterns, string input)
{
for (int i = 0; i < patterns.Length; i++)
{
if (Patterns.HASPattern(patterns[i], input) == false)
return false;
}
return true;
}
}