break — Abort looping command
break
This command is typically invoked inside the body of a looping
command such as for or
foreach or while. It returns a 3 (TCL_BREAK) result 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 command, Tk event bindings, and
the outermost scripts of procedure bodies.
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"
}
catch, continue, for, foreach, return, while
abort, break, loop
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University of California.
Copyright © 1994-1996 Sun Microsystems, Inc.