Citrix Systems 9.2 Benutzerhandbuch

In addition to performing simple string matching, you can configure expressions 
that examine more complex aspects of text, including examining the length of a 
string and looking within a text block for patterns rather than specific strings.

Be aware of the following for any text-based operation:

•

For any operation that takes a string argument, the string cannot exceed 255 
characters.

•

You can include white space when you specify a string in an expression.

The following operations extract strings based on a character count.

text.TO_LOWER

Converts the target to lowercase.

For example, the string “ABCd:” is converted 
to “abcd:”.

text.TO_UPPER

Converts the target to uppercase. 

For example, the string “abcD:” is converted to 
“ABCD:”.

text.TRUNCATE(count)

Returns a string after truncating the end of the 
target by the number of characters in count. 

If the entire string is shorter than count, nothing is 
returned.

text.TRUNCATE(character, 

count)

Returns a string after truncating the text after 
character by the number of characters specified in 
count.

text.PREFIX(character, 

count)

Selects the longest prefix in the target that has at 
most count occurrences of character.