attempting to break within function Post: 67319

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Top Forums UNIX for Dummies Questions & Answers attempting to break within function Post 67319 by google on Tuesday 22nd of March 2005 01:36:22 PM

03-22-2005

Registered User

You can build a valid list programmatically of direcoties to display rather than have the user input a directory. Alternatively, you can build the list of directories to display and allow the user to enter a directory. If you programmatically build the list then all you have to worry about is validating input from your user. Can you elaborate more on what it is you are trying to build?

Code:

testf () {
dir=$reply

if [ -x /main/$dir ]
 then
    echo dir $dir exists
    #useless use of the command break here #
    FLAG=1
 else
    echo "no dir $dir exists, try again"
    bflag=n
    FLAG=0
fi
}
FLAG=0
typeset -u reply
while [ $FLAG -eq 0 ]
do
echo " a b "
echo " Enter one of the directories from above: \c"
read reply

case $reply in
A) testf 
    break
    ;;
B) testf
    break
    ;;
*) echo $reply is not valid dir to choose - try again
esac
done

Last edited by google; 03-22-2005 at 02:43 PM..

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LEARN ABOUT DEBIAN

break

break(3tcl)						       Tcl Built-In Commands						       break(3tcl)

__________________________________________________________________________________________________________________________________________________

NAME

       break - Abort looping command

SYNOPSIS

       break
_________________________________________________________________

DESCRIPTION

       This command is typically invoked inside the body of a looping command such as for or foreach or while.	It returns a TCL_BREAK code, which
       causes a break exception to occur.  The exception causes the current script to be aborted out to the  innermost	containing  loop  command,
       which  then aborts its execution and returns normally.  Break exceptions are also handled in a few other situations, such as the catch com-
       mand, Tk event bindings, and the outermost scripts of procedure bodies.

EXAMPLE

       Print a line for each of the integers from 0 to 5:
	      for {set x 0} {$x<10} {incr x} {
		 if {$x > 5} {
		    break
		 }
		 puts "x is $x"
	      }

SEE ALSO

       catch(3tcl), continue(3tcl), for(3tcl), foreach(3tcl), return(3tcl), while(3tcl)

KEYWORDS

       abort, break, loop

Tcl																       break(3tcl)