egghelp/eggheads community

String comparison

2003-04-07T14:47:29-04:00

the best way to determine if two strings are equal is...drumroll... 'string equal' ..it even has a -nocase option

Statistics: Posted by user — Mon Apr 07, 2003 2:47 pm

String comparison

2003-04-06T16:38:45-04:00

Read the Tcl man pages for the usage of the "string match" command.

it uses the format

string match [-nocase]

The mask is the first item, not the second. Thus, because $channel isn't escaped, and is being passed as the mask potion, it is failing.

Statistics: Posted by ppslim — Sun Apr 06, 2003 4:38 pm

String comparison

2003-04-05T03:47:16-04:00

Ok... the mask is $channel

The text is "#\[ms\]"

See, you escaped the [ ] in the text, but not the mask.

Solution: use "string compare" instead of "string match" (look it up in the man page) because it doesn't use a mask, and hence doesn't need to be escaped.

Statistics: Posted by stdragon — Sat Apr 05, 2003 3:47 am

String comparison

2003-04-05T03:45:50-04:00

:s well i just tried:

Code:

if {[string match -nocase $channel "#\[ms\]"]} {putquick "PRIVMSG $channel :Test(1)"}if {[string match -nocase $channel "#\[ms]"]} {putquick "PRIVMSG $channel :Test(2)"}

and neither appeared in the channel. :/ The compare thing works though. Thnx for ur time guys.

Statistics: Posted by Massacre — Sat Apr 05, 2003 3:45 am

String comparison

2003-04-05T03:28:02-04:00

Evidently that will not. I did a test: .tcl putlog "#\[ms\]" and got as result: #[ms] Test yourself.. Oh and also it works if you use only one \ like: #\[ms]

Statistics: Posted by caesar — Sat Apr 05, 2003 3:28 am

String comparison

2003-04-05T03:19:21-04:00

Isn't "#\[ms\]" excaping the []?

Statistics: Posted by Massacre — Sat Apr 05, 2003 3:19 am

String comparison

2003-04-04T18:37:05-04:00

Escaping [ ] would get around it, but you didn't escape it (in the mask).

Using string compare like I said will get around it just fine.

Statistics: Posted by stdragon — Fri Apr 04, 2003 6:37 pm

String comparison

2003-04-04T18:21:40-04:00

Doesn't escaping (eg, '\[') get round that? And if not, do you or anyone else know how i can get round it?

Statistics: Posted by Massacre — Fri Apr 04, 2003 6:21 pm

String comparison

2003-04-04T18:16:02-04:00

I believe [ ] has special meaning when used as a mask in string match. It means basically "any of the enclosed chars." Solution: use [string compare] instead.

% string match {[abc]} "a"
1
% string match {[abc]} "b"
1
% string match {[abc]} "e"
0
% string compare {[abc]} "a"
-1
% string compare {[abc]} {[abc]}
0 <-- correct

Statistics: Posted by stdragon — Fri Apr 04, 2003 6:16 pm

String comparison

2003-04-04T17:40:37-04:00

i've tried it with other channels there too, but it only failes on #[ms] :/

Statistics: Posted by Massacre — Fri Apr 04, 2003 5:40 pm

String comparison

2003-04-04T17:39:01-04:00

I just don't get it. I've spent the best part of 2 hours fiddling with this and I just can't see why it's not working. If I join our clan channel, #[ms], the following, which is in a proc that's bound to 'join' (and i know it works), results in false

Code:

if {[string match -nocase $channel "#\[ms\]"]} {

or, from my debugging:

Code:

putquick "PRIVMSG $channel :$channel [string match -nocase $channel "#\[ms\]"]"

gives the output: #[ms] 0

If i replace #[ms] with our private channel then join the private channel, the if results in true, but otherwise, it just doesn't work. It's not in any other if's, it's just there and it isn't working :S can anyone see something i'm doing wrong? i'd be very greatful!

Statistics: Posted by Massacre — Fri Apr 04, 2003 5:39 pm