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# Test control commands for loops and functions.
%test
fn3() { return $1; print Error }
fn2() { fn3 $1 }
fn() {
print start $1
fn2 $1
return
print Error
}
for val in -1 0 1 255; do
fn $val; print $?
done
0:Passing of return values back through functions
>start -1
>-1
>start 0
>0
>start 1
>1
>start 255
>255
$ZTST_testdir/../Src/zsh -fc 'fn() {
continue
}
fn'
1:continue outside loop
?fn:continue:1: not in while, until, select, or repeat loop
for outer in 0 1 2 3; do
print outer $outer
for inner in 0 1 2 3; do
print inner $inner
continue $(( (outer & 1) ? 2 : 1 ))
print error
done
print outer end
done
0:continue with valid argument
>outer 0
>inner 0
>inner 1
>inner 2
>inner 3
>outer end
>outer 1
>inner 0
>outer 2
>inner 0
>inner 1
>inner 2
>inner 3
>outer end
>outer 3
>inner 0
for outer in 0 1; do
continue 0
print -- $outer got here, status $?
done
1:continue error case 0
?(eval):continue:2: argument is not positive: 0
for outer in 0 1; do
continue -1
print -- $outer got here, status $?
done
1:continue error case -1
?(eval):continue:2: argument is not positive: -1
fn() {
break
}
for outer in 0 1; do
print $outer
fn
done
0:break from within function (this is a feature, I disovered)
>0
for outer in 0 1 2 3; do
print outer $outer
for inner in 0 1 2 3; do
print inner $inner
break $(( (outer & 1) ? 2 : 1 ))
print error
done
print outer end
done
0:break with valid argument
>outer 0
>inner 0
>outer end
>outer 1
>inner 0
for outer in 0 1; do
break 0
print -- $outer got here, status $?
done
1:break error case 0
?(eval):break:2: argument is not positive: 0
for outer in 0 1; do
break -1
print -- $outer got here, status $?
done
1:break error case -1
?(eval):break:2: argument is not positive: -1
false
for x in; do
print nothing executed
done
0:Status 0 from for with explicit empty list
set --
false
for x; do
print nothing executed
done
0:Status 0 from for with implicit empty list
(exit 2)
for x in 1 2; do
print $?
done
0:Status from previous command propagated into for loop
>2
>0
false
for x in $(echo 1 2; (exit 3)); do
print $?
done
0:Status from expansion propagated into for loop
>3
>0
false
for x in $(exit 4); do
print not executed
done
0:Status from expansion not propagated after unexecuted for loop
false
for x in NonExistentFilePrefix*(N); do
print not executed, either
done
0:Status from before for loop not propagated if empty after expansion
for x in $(echo 1; false); do
done
0:Status reset by empty list in for loop
false
for x in $(echo 1; false); do
echo $?
(exit 4)
done
4:Last status from loop body is kept even with other funny business going on
>1
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