Forum OpenACS Q&A: Help needed for a Regular expression

Posted by abbas beginner on 10/16/03 05:22 AM

Hi,

sorry , i know this is not a direct problem with OACS , i just dont know where else to ask about this.

i am having a problem trying to get a RE that will match what i need, im new with RE's and might be going about it the wrong way:

my problem ,

if i have a string - > "top/Arts/music/opera/blah"

and i am trying to strip everything upto and including the last forward slash of the string, the thing is i can any number of forward slashes before that like
../../../../../../../../../../../blah

but i still just need the "blah"

i was trying to get it stripped from the back, but unsuccessful since im not very familiar with the tcl RE syntax

if anyone knows RE's and can help i would really appreciate it .

thankyou in advance

2: Re: Help needed for a Regular expression (response to 1)

Posted by Chris Davies on 10/16/03 05:46 AM

set pathinfo "/asdfa/asdf/asdf/asdf/asdf/1234"
set endpart [lrange [split $pathinfo /] end end]

3: Re: Help needed for a Regular expression (response to 1)

Posted by abbas beginner on 10/16/03 05:48 AM

thanks alot for that

makes sense now

4: Re: Help needed for a Regular expression (response to 2)

Posted by abbas beginner on 10/16/03 05:50 AM

thanks alot for that chris

makes sense now

5: Re: Help needed for a Regular expression (response to 1)

Posted by Jamie Rasmussen on 10/16/03 06:08 AM

You may want to look at tcl's file tail command.

6: Re: Help needed for a Regular expression (response to 1)

Posted by Don Baccus on 10/16/03 10:02 AM

In other words set file_name [file tail $path_info]