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

{

/**//// <summary>
/// A utility class containing frequently used Regular Expression Patterns
/// and two utility methods to see if a passed string conforms to the designated
/// pattern.
/// </summary>
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})?$" ;


/**//// <summary>
/// Permissive US Telephone Regex. Does not allow extensions.
/// </summary>
/// <example>
/// Allows: 324-234-3433, 3242343434, (234)234-234, (234) 234-2343
/// </example>
public const string US_TELEPHONE = @"^([/(]{1}[0-9]{3}[/)]{1}[/.| |/-]{0,1}|^[0-9]{3}[/.|/-| ]?)?[0-9]{3}(/.|/-| )?[0-9]{4}$";


/**//// <summary>
/// This matches a url in the generic format
/// scheme://authority/path?query#fragment
/// </summary>
/// <example>
/// Allows: http://www.yahoo.com, https://www.yahoo.com, ftp://www.yahoo.com
/// </example>
public const string URL = @"^(?<Protocol>/w+):////(?<Domain>[/w.]+//?)/S*$";


/**//// <summary>
/// This matches an ip address in the format xxx-xxx-xxx-xxx
/// each group of xxx must be less than or equal to 255
/// </summary>
/// <example>
/// Allows: 123.123.123.123, 192.168.1.1
/// </example>
public const string IP_ADDRESS = @"^(?<First>2[0-4]/d|25[0-5]|[01]?/d/d?)/.(?<Second>2[0-4]/d|25[0-5]|[01]?/d/d?)/.(?<Third>2[0-4]/d|25[0-5]|[01]?/d/d?)/.(?<Fourth>2[0-4]/d|25[0-5]|[01]?/d/d?)$";


/**//// <summary>
/// This matches a date in the format mm/dd/yy
/// </summary>
/// <example>
/// Allows: 01/05/05, 12/30/99, 04/11/05
/// Does not allow: 01/05/2000, 2/2/02
/// </example>
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)$";



/**//// <summary>
/// This matches a date in the format mm/yy
/// </summary>
/// <example>
/// Allows: 01/05, 11/05, 04/99
/// Does not allow: 1/05, 13/05, 00/05
/// </example>
public const string DATE_MM_YY = @"^((0[1-9])|(1[0-2]))//(/d{2})$";


/**//// <summary>
/// This matches only numbers(no decimals)
/// </summary>
/// <example>
/// Allows: 0, 1, 123, 4232323, 1212322
/// </example>
public const string IS_NUMBER_ONLY = @"^([1-9]/d*)$|^0$";

/**//// <summary>
/// This matches any string with only alpha characters upper or lower case(A-Z)
/// </summary>
/// <example>
/// Allows: abc, ABC, abCd, AbCd
/// Does not allow: A C, abc!, (a,b)
/// </example>
public const string IS_ALPHA_ONLY = @"^[a-zA-Z]+$";


/**//// <summary>
/// This matches any string with only upper case alpha character(A-Z)
/// </summary>
public const string IS_UPPER_CASE = @"^[A-Z]+$";

/**//// <summary>
/// This matches any string with only lower case alpha character(A-Z)
/// </summary>
public const string IS_LOWER_CASE = @"^[a-z]+$";

/**//// <summary>
/// Ensures the string only contains alpha-numeric characters, and
/// not punctuation, spaces, line breaks, etc.
/// </summary>
/// <example>
/// Allows: ab2c, 112ABC, ab23Cd
/// Does not allow: A C, abc!, a.a
/// </example>
public const string IS_ALPHA_NUMBER_ONLY = @"^[a-zA-Z0-9]+$";


/**//// <summary>
/// Validates US Currency. Requires $ sign
/// Allows for optional commas and decimal.
/// No leading zeros.
/// </summary>
/// <example>Allows: $100,000 or $10000.00 or $10.00 or $.10 or $0 or $0.00
/// Does not allow: $0.10 or 10.00 or 10,000</example>
public const string IS_US_CURRENCY = @"^/$(([1-9]/d*|([1-9]/d{0,2}(/,/d{3})*))(/./d{1,2})?|(/./d{1,2}))$|^/$[0](.00)?$";


/**//// <summary>
/// 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.
/// </summary>
public const string CREDIT_CARD = @"^(?:(?<Visa>4/d{3})|(?<Mastercard>5[1-5]/d{2})|(?<Discover>6011)|(?<DinersClub>(?:3[68]/d{2})|(?:30[0-5]/d))|(?<AmericanExpress>3[47]/d{2}))([ -]?)(?(DinersClub)(?:/d{6}/1/d{4})|(?(AmericanExpress)(?:/d{6}/1/d{5})|(?:/d{4}/1/d{4}/1/d{4})))$";


/**//// <summary>
/// Matches social security in the following format xxx-xx-xxxx
/// where x is a number
/// </summary>
/// <example>
/// Allows: 123-45-6789, 232-432-1212
/// </example>
public const string SOCIAL_SECURITY = @"^/d{3}-/d{2}-/d{4}$";


/**//// <summary>
/// Matches x,x where x is a name, spaces are only allowed between comma and name
/// </summary>
/// <example>
/// Allows: christophersen,eric; christophersen, eric
/// Not allowed: christophersen ,eric;
/// </example>
public const string NAME_COMMA_NAME = @"^[a-zA-Z]+,/s?[a-zA-Z]+$";
private Patterns()

{
}


/**//// <summary>
/// Checks to see if the passed input has the passed pattern
/// </summary>
/// <param name="pattern">The pattern to use</param>
/// <param name="input">The input to check</param>
/// <returns>True if the input has the pattern, false otherwise</returns>
public static bool HasPattern( string pattern, string input )

{
Regex regEx = new Regex(pattern);
return regEx.IsMatch(input);
}


/**//// <summary>
/// Checks the passed input to make sure it has all the patterns in the
/// passed patterns array
/// </summary>
/// <param name="patterns">Array of patterns</param>
/// <param name="input">String value to check</param>
/// <returns>True if the input has all of the patterns, false otherwise.</returns>
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;
}
}
代码如下




















































































































































































































http://www.cnblogs.com/aspnetx/archive/2006/10/01/519875.html