Jumping to one proc after another

Tristam · Post by **Tristam** » Fri Nov 14, 2003 8:29 pm

Yello! I would like to ask if there is a command in tcl similiar to "go to" or "then"..? Let me explain:

I have a simple script:

Code: Select all

proc topic_set { nick host hand chan text } { 
set fileid [open tristam-topic_theme.txt r]
gets $fileid topic_theme
close $fileid
  if {$topic_theme == "1"} {
set t_start "7,1.::"
set t_colour "15"
set t_middle "7::"
set t_end "7::."
  } elseif {$topic_theme == "2"} {
set t_start "1,14.::"
set t_colour "0"
set t_middle "1::"
set t_end "1::."
  } elseif {$topic_theme == "3"} {
set t_start "7,1» 0» 7»"
set t_colour "7"
set t_middle "7«0?7»"
set t_end "7« 0« 7«"
 } }

See, it opens up a file and reads the value (which is set with a different command before, and sets the t_xxx variables according to what the value in the file is, understood? good

) So, I want it to "move" along with the script, or just "move" to another proc, which does the rest. I could fix it by typing the rest of it after each 1,2,3 varible chack commands, but that would make my code 47834786 lines long and stupid

So what I really want to know it: Is there a way to "jump" or "move" to another proc after finished the other? Or a command like "then". I hope you understand

Here is the rest of the code btw, if anyone is interested what am I trying to do :>

Code: Select all

set fileid [open tristam-topic_sections.txt r]
gets $fileid topic_sections
  if {$topic_sections == "0"} {
puthelp "PRIVMSG $chan :There is no topic set in $chan!"
 } elseif {$topic_sections == "1"} {
set fileid [open tristam-topic_1.txt r]
gets $fileid topic_section_1
putserv "TOPIC $chan :$t_start $t_colour $topic_section_1 $t_end"
close $fileid
 } elseif {$topic_sections == "2"} {
set fileid [open tristam-topic_1.txt r]
gets $fileid topic_section_1
close $fileid
set fileid [open tristam-topic_2.txt r]
gets $fileid topic_section_2
putserv "TOPIC $chan :$t_start $t_colour $topic_section_1 $t_middle $t_colour $topic_section_2 $t_end"
close $fileid
 } elseif {$topic_sections == "3"} {
set fileid [open tristam-topic_1.txt r]
gets $fileid topic_section_1
close $fileid
set fileid [open tristam-topic_2.txt r]
gets $fileid topic_section_2
close $fileid
set fileid [open tristam-topic_3.txt r]
gets $fileid topic_section_3
putserv "TOPIC $chan :$t_start $t_colour $topic_section_1 $t_middle $t_colour $topic_section_2 $t_middle $t_colour $topic_section_3 $t_end"
close $fileid
 } elseif {$topic_sections == "4"} {
set fileid [open tristam-topic_1.txt r]
gets $fileid topic_section_1
close $fileid
set fileid [open tristam-topic_2.txt r]
gets $fileid topic_section_2
close $fileid
set fileid [open tristam-topic_3.txt r]
gets $fileid topic_section_3
close $fileid
set fileid [open tristam-topic_4.txt r]
gets $fileid topic_section_4
putserv "TOPIC $chan :$t_start $t_colour $topic_section_1 $t_middle $t_colour $topic_section_2 $t_middle $t_colour $topic_section_3 $t_middle $t_colour $topic_section_4 $t_end"
close $fileid
 } elseif {$topic_sections == "5"} {
set fileid [open tristam-topic_1.txt r]
gets $fileid topic_section_1
close $fileid
set fileid [open tristam-topic_2.txt r]
gets $fileid topic_section_2
close $fileid
set fileid [open tristam-topic_3.txt r]
gets $fileid topic_section_3
close $fileid
set fileid [open tristam-topic_4.txt r]
gets $fileid topic_section_4
close $fileid
set fileid [open tristam-topic_5.txt r]
gets $fileid topic_section_5
putserv "TOPIC $chan :$t_start $t_colour $topic_section_1 $t_middle $t_colour $topic_section_2 $t_middle $t_colour $topic_section_3 $t_middle $t_colour $topic_section_4 $t_middle $t_colour $topic_section_5 $t_end"
close $fileid
 } else {
puthelp "PRIVMSG $chan :ERROR :P"
 } }

Post by **caesar** » Sat Nov 15, 2003 3:55 am

Instead of a lot ifs and elses use the switch command.

TALES · Post by **TALES** » Sat Nov 15, 2003 6:44 am

could be something like this ??

example:

Code: Select all

if {$topic_sections == "0"} { 
puthelp "PRIVMSG $chan :There is no topic set in $chan!" 
 } elseif {$topic_sections == "1"} {
  #your code
  set topic_sections "2"
 } elseif {$topic_sections == "2"} {
  #your code
  set topic_sections "1"
 } else {
  #your code
  set topic_section "1"
 }
}

Tristam · Post by **Tristam** » Sun Nov 16, 2003 4:12 pm

Hmm...

No TALES, that's what I can do already. The problem is, when I use if's and elseif's, that it stops after making all the commands. And if I use one if or elseif to make commands, I cant use if or elseif in the commands again..

caesar, I tried to look for an "switch" command, here it is: http://www.tcl.tk/man/tcl8.4/TclCmd/switch.htm. The only problem is that I dont understand it

Could you please help me out and make a _simple_ example of the usage? (I really dont understand how that command would help me with my problem..)

help a noobi, thanks :>

EDIT:// I'll try to explain the problem again: First, I take a number from a text file, check it with if and elseif commands to set up few variables depending what's the number in the text file. After that, I want it to continue with a code, which gives different output depending which variables were set. I hope you understand it

Post by **caesar** » Sun Nov 16, 2003 4:51 pm

Code: Select all

set number 1
switch -- $number {
  "1" {
    # do something with this number
  }
  "2" {
    # do something with this number
  }
  "3" {
    # do something with this number
  }
}

Tristam · Post by **Tristam** » Sun Nov 16, 2003 4:55 pm

uuuuh now it all makes sense

thanks a lot once again! :>