Register Register Member Login Member Login Member Login Forgot Password ??
PHP , ASP , ASP.NET, VB.NET, C#, Java , jQuery , Android , iOS , Windows Phone
 

Registered : 108,415

HOME > VBScript Manual > Pattern Property





Bookmark.
Microsoft® Visual Basic® Scripting Edition
Pattern Property
 Language Reference 
Version 5 

See Also                    Applies to


Description
Sets or returns the regular expression pattern being searched for.
Syntax
object.Pattern [= "searchstring"]

The Pattern property syntax has these parts:

Part Description
object Required. Always a RegExp object variable.
searchstring Optional. Regular string expression being searched for. May include any of the regular expression characters defined in the table in the Settings section.

Settings
Special characters and sequences are used in writing patterns for regular expressions. The following table describes and gives an example of the characters and sequences that can be used.

Character Description
\ Marks the next character as either a special character or a literal. For example, "n" matches the character "n". "\n" matches a newline character. The sequence "\\" matches "\" and "\(" matches "(".
^ Matches the beginning of input.
$ Matches the end of input.
* Matches the preceding character zero or more times. For example, "zo*" matches either "z" or "zoo".
+ Matches the preceding character one or more times. For example, "zo+" matches "zoo" but not "z".
? Matches the preceding character zero or one time. For example, "a?ve?" matches the "ve" in "never".
. Matches any single character except a newline character.
(pattern) Matches pattern and remembers the match. The matched substring can be retrieved from the resulting Matches collection, using Item [0]...[n]. To match parentheses characters ( ), use "\(" or "\)".
x|y Matches either x or y. For example, "z|food" matches "z" or "food". "(z|f)oo" matches "zoo" or "food".
{n} n is a nonnegative integer. Matches exactly n times. For example, "o{2}" does not match the "o" in "Bob," but matches the first two o's in "foooood".
{n,} n is a nonnegative integer. Matches at least n times. For example, "o{2,}" does not match the "o" in "Bob" and matches all the o's in "foooood." "o{1,}" is equivalent to "o+". "o{0,}" is equivalent to "o*".
{n,m} m and n are nonnegative integers. Matches at least n and at most m times. For example, "o{1,3}" matches the first three o's in "fooooood." "o{0,1}" is equivalent to "o?".
[xyz] A character set. Matches any one of the enclosed characters. For example, "[abc]" matches the "a" in "plain".
[^xyz] A negative character set. Matches any character not enclosed. For example, "[^abc]" matches the "p" in "plain".
[a-z] A range of characters. Matches any character in the specified range. For example, "[a-z]" matches any lowercase alphabetic character in the range "a" through "z".
[^m-z] A negative range characters. Matches any character not in the specified range. For example, "[m-z]" matches any character not in the range "m" through "z".
\b Matches a word boundary, that is, the position between a word and a space. For example, "er\b" matches the "er" in "never" but not the "er" in "verb".
\B Matches a nonword boundary. "ea*r\B" matches the "ear" in "never early".
\d Matches a digit character. Equivalent to [0-9].
\D Matches a nondigit character. Equivalent to [^0-9].
\f Matches a form-feed character.
\n Matches a newline character.
\r Matches a carriage return character.
\s Matches any white space including space, tab, form-feed, etc. Equivalent to "[ \f\n\r\t\v]".
\S Matches any nonwhite space character. Equivalent to "[^ \f\n\r\t\v]".
\t Matches a tab character.
\v Matches a vertical tab character.
\w Matches any word character including underscore. Equivalent to "[A-Za-z0-9_]".
\W Matches any nonword character. Equivalent to "[^A-Za-z0-9_]".
\num Matches num, where num is a positive integer. A reference back to remembered matches. For example, "(.)\1" matches two consecutive identical characters.
\n Matches n, where n is an octal escape value. Octal escape values must be 1, 2, or 3 digits long. For example, "\11" and "\011" both match a tab character. "\0011" is the equivalent of "\001" & "1". Octal escape values must not exceed 256. If they do, only the first two digits comprise the expression. Allows ASCII codes to be used in regular expressions.
\xn Matches n, where n is a hexadecimal escape value. Hexadecimal escape values must be exactly two digits long. For example, "\x41" matches "A". "\x041" is equivalent to "\x04" & "1". Allows ASCII codes to be used in regular expressions.

Remarks
The following code illustrates the use of the Pattern property:
Function RegExpTest(patrn, strng)
  Dim regEx, Match, Matches		' Create variable.
  Set regEx = New RegExp			' Create a regular expression.
  regEx.Pattern = patrn			' Set pattern.
  regEx.IgnoreCase = True			' Set case insensitivity.
  regEx.Global = True			' Set global applicability.
  Set Matches = regEx.Execute(strng)	' Execute search.
  For Each Match in Matches		' Iterate Matches collection.
    RetStr = RetStr & "Match found at position "
    RetStr = RetStr & Match.FirstIndex & ". Match Value is '"
    RetStr = RetStr & Match.Value & "'." & vbCRLF
  Next
  RegExpTest = RetStr
End Function

MsgBox(RegExpTest("is.", "IS1 is2 IS3 is4"))


ThaiCreate.Com Forum


Comunity Forum Free Web Script
Jobs Freelance Free Uploads
Free Web Hosting Free Tools

สอน PHP ผ่าน Youtube ฟรี
สอน Android การเขียนโปรแกรม Android
สอน Windows Phone การเขียนโปรแกรม Windows Phone 7 และ 8
สอน iOS การเขียนโปรแกรม iPhone, iPad
สอน Java การเขียนโปรแกรม ภาษา Java
สอน Java GUI การเขียนโปรแกรม ภาษา Java GUI
สอน JSP การเขียนโปรแกรม ภาษา Java
สอน jQuery การเขียนโปรแกรม ภาษา jQuery
สอน .Net การเขียนโปรแกรม ภาษา .Net
Free Tutorial
สอน Google Maps Api
สอน Windows Service
สอน Entity Framework
สอน Android
สอน Java เขียน Java
Java GUI Swing
สอน JSP (Web App)
iOS (iPhone,iPad)
Windows Phone
Windows Azure
Windows Store
Laravel Framework
Yii PHP Framework
สอน jQuery
สอน jQuery กับ Ajax
สอน PHP OOP (Vdo)
Ajax Tutorials
SQL Tutorials
สอน SQL (Part 2)
JavaScript Tutorial
Javascript Tips
VBScript Tutorial
VBScript Validation
Microsoft Access
MySQL Tutorials
-- Stored Procedure
MariaDB Database
SQL Server Tutorial
SQL Server 2005
SQL Server 2008
SQL Server 2012
-- Stored Procedure
Oracle Database
-- Stored Procedure
SVN (Subversion)
แนวทางการทำ SEO
ปรับแต่งเว็บให้โหลดเร็ว


สุดยอด Source Code V2.0
 

แจ้งชำระเงิน/โอนเงิน
 

Hit Link
   







Load balance : Server 01
ThaiCreate.Com Logo
© www.ThaiCreate.Com. 2003-2020 All Rights Reserved.
ไทยครีเอทบริการ จัดทำดูแลแก้ไข Web Application ทุกรูปแบบ (PHP, .Net Application, VB.Net, C#)
[Conditions Privacy Statement] ติดต่อโฆษณา 081-987-6107 อัตราราคา คลิกที่นี่