Problem with string match.

[awyeah]

Hi,

I have this small piece of code, I am trying to detect if a variable $banlistremove has any number, from like the 0 to 9 range, 0, 1, 2, 3......, 9, 0 in it, or not.

Code: Select all

  if {(([string match *[0-9]* $banlistremove]) || ([string match *[0-9][0-9]* $banlistremove])) && (![string equal -nocase $banlistremove "all"])} { banlist:clean:specific $chan }

But it, gives me an error.

Code: Select all

[03:35] Tcl error [banlist:type]: invalid command name "0-9"

I have also tried "*[0-9]*", with quotations, but doesn't work.
What could be the reason?

[greenbear]

Just escape the brackets and it should work

Code: Select all

string match *\[0-9\]* $banlistremove

[awyeah]

Ah thanks alot gb.
I am not sure why it didnt work without the \'s.

Because with regexp, regsub you can use [0-9] or [A-Z] directly.
My mistake I guess.

[DayCuts]

Because special charactors such as [ and ] have different meanings in refular expression. Also i tend to put any regular expression inside {} brackets to avoid any clashes with tcl interpretations of anything.

[]'s in general tcl code are treated as a command. a \ before a special charactor (such as those []'s) is an 'escape'. Basically tells the tcl engine to treat the proceeding charactor as plain text and not interpret it as a special charactor like it normally would.

[awyeah]

Yeah, thanks I am familiar with the last paragraph.
I myself, use { } braces when using regexp or regsub.