use string command to match many digitals

besides thi ,"string is interge" and "string is digit"

 

what is the difference bewtween them

Hi Jucao,

 

 

string match doesn't accept regex syntax like anchors (^) or a repeat count for a character class (*). See this TCL wiki page for details on string is integer and is digit:

 

 

http://wiki.tcl.tk/10166

 

 

What do you mean by "filter all non-digital URIs)? Do you want to match any URI which starts with /sit/event that doesn't have two directories of numbers? Do you want to remove the numbers? Or do something else?

 

 

Aaron

hello.,Aaron

 

glad to see your reply

 

sorry for my bad question

 

 

actually what I want to achieve is:

 

 

I need to check whether one pattern is number(s) or not

 

 

for example:

 

/cjj/xx/123456/xx

 

/cjj/xx/23tz/xx

 

 

the first /cjj/xx/123456/xx is what I want because I need to do some action to this 123456

 

23tz is not I want,I need pure number in that palce

 

 

string is

 

 

digit or interger?

 

I don't know the difference between them

 

the number what I mean is 0-9 .0-9 is number I mean

 

which command should I use ? digit or interger?

 

"string is digit" can include characters outside of the standard [0-9] in unicode if they are meant to represent numbers in other languages.

 

 

"string is integer" allows only numbers that can be recognized by the system as valid integers, with a couple of restrictions. From memory (and don't take my word on this, test it for yourself):

 

 

1) It'll see negative signed numbers as integers, so if you send it "-341343" and "454255" it'll say both are integers, which they are. But it's a case you probably want to check for if you think you may see a dash in that URI field.

 

 

2) It'll only see numbers that fit into a machine word, so you're limited to checking for numbers lower than 10000000000.

 

 

3) It will see integers in C-style 0x notation, so if your string begins with "0x" you may need to check for this.

 

 

But I don't think I'd use either for what you're doing. In the other thread, I explained about the use of "getfield". I'd use that syntax, and then do a [string match [0-9] $value_from_getfield] to test for whether it's all digits or not.

hello,Joel

 

thanks for your reply

 

[string match [0-9] $value_from_getfield] seems a good method

 

but I have one question, if $value_from_getfield is 999xxyz ,what is the result of [string match [0-9] $value_from_getfield]?

If the string is all digits, then the above command would return 1 (True). If not, it'd return 0 (False). You can use it like so:

set captured_value [getfield [HTTP::uri] "/" 4]
if { [string match [0-9] $captured_value] } {
        log local0. "The URL path entry $captured_value is okay (all digits)."
} else {
        log local0. "The URL path entry $captured_value is not okay (non-digit characters were found)."
} 

Replace the log sections with your logic to do what you need with that part of the URI. Hope this helps!

oh,ok

 

but string match A B means B contains A

 

for example

 

B = 99xyz

 

A = 9

 

 

B still contains A,but B is not all digits

Replied here:

 

https://devcentral.f5.com/Community/GroupDetails/tabid/1082223/asg/50/aft/2158816/showtab/groupforums/Default.aspx

 

 

Aaron