Citrix Systems 9.2 Operations for Calculating the Length of a String, Operations for Controlling Case Sensitivity

Chapter 4 Advanced Expressions: Evaluating Text 87
Operations for Calculating the Length of a String
The following operation returns a numeric value that shows the number of
characters (not bytes) of a string:
text.LENGTH
For example, you may want to identify request URLs that exceed a particular
length. Following is the expression that implements this example:
HTTP.REQ.URL.LENGTH < 500
After taking a count of the characters or elements in a string, you can apply
numeric operations to them. For more information, see “Advanced Expressions:
Working with Dates, Times, and Numbers,” on page 95.
Operations for Controlling Case Sensitivity
The following operation turns case sensitivity on or off for an expression.
text.EQ("string") Returns a Boolean TRUE value if the target is an exact
match with string.
For example, the following expression returns a
Boolean TRUE for a URL with a host name of
“myhostabc”:
http.req.url.hostname.eq("myhostabc")
text.
STARTSWITH("string") Returns a Boolean TRUE value if the target begins
with string.
For example, the following expression returns a
Boolean TRUE for a URL with a host name of
“myhostabc”:
http.req.url.hostname.
startswith("myhost")
text.ENDSWITH("string") Returns a Boolean TRUE value if the target ends with
string.
For example, the following expression returns a
Boolean TRUE for a URL with a host name of
“myhostabc”:
http.req.url.hostname.endswith("abc")
Operations on Case Sensitivity of Text
Case Operation Description
text.SET_TEXT_
MODE(IGNORECASE|
NOIGNORECASE)
This operation turns case sensitivity on or off
for all text operations.
Basic Operations on Text
Basic Text Operation Description