ComponentOne VSFlexGrid 8.0
Pattern Property

Returns or sets the regular expression used for matching against the Text string.

Syntax

[form!]VSFlexString.Pattern[ = value As String ]

Remarks

The regular expression syntax recognized by VSFlexString is based on the following special characters:

 

Char

Description

^

Beginning of a string.

$

End of a string.

.

Any character.

[list]

Any character in list. For example, "[AEIOU]" matches any single uppercase vowel.

[^list]

Any character not in list. For example, "[^ ]" matches any character except a space.

[A-Z]

Any character between 'A' and 'Z'. For example, "[0-9]" matches any single digit.

?

Repeat previous character zero or one time. For example, "10?" matches "1" and "10".

*

Repeat previous character zero or more times. For example, "10*" matches "1", "10", "1000", etc.

+

Repeat previous character one or more times. For example, "10+" matches "10", "1000", etc.

\

Escape next character. This is required to any of the special characters that are part of the syntax. For example "\.\*\+\\" matches ".*+\". It is also required to encode some special non-printable characters (such as tabs) listed below.

{tag}

Tag this part of the match so you can refer to it later using the TagString property.

 

In addition to the characters listed above, there are seven special characters encoded using the backslash. These are listed below:

 

Code

Description

ASCII Code

VB Symbol

\a

Bell (alert)

7

N/A

\b

Backspace

8

N/A

\f

Formfeed

12

N/A

\n

New line

10

VbLf

\r

Carriage return

13

VbCr

\t

Horizontal tab

9

VbTab

\v

Vertical tab

11

N/A

 

For some examples and more details, see the Regular Expressions topic.

Data Type

String

 

 


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