diff options
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | Src/builtin.c | 5 | ||||
| -rw-r--r-- | Test/.distfiles | 1 | ||||
| -rw-r--r-- | Test/A07control.ztst | 112 |
4 files changed, 123 insertions, 0 deletions
@@ -1,5 +1,10 @@ 2008-08-31 Peter Stephenson <p.w.stephenson@ntlworld.com> + * 25568: Frank Terbeck & pws: Src/builtin.c, Test/.distfiles, + Test/A07control.ztst: break and continue arguments less than + 1 are invalid (and hard errors); add some tests for control + commands. + * users/13162: Completion/Unix/Command/_module: strip "~" suffix from modules. diff --git a/Src/builtin.c b/Src/builtin.c index ee44b3776..654665bfc 100644 --- a/Src/builtin.c +++ b/Src/builtin.c @@ -4443,6 +4443,11 @@ bin_break(char *name, char **argv, UNUSED(Options ops), int func) nump = 1; } + if (nump > 0 && (func == BIN_CONTINUE || func == BIN_BREAK) && num <= 0) { + zerrnam(name, "argument is not positive: %d", num); + return 1; + } + switch (func) { case BIN_CONTINUE: if (!loops) { /* continue is only permitted in loops */ diff --git a/Test/.distfiles b/Test/.distfiles index 53d2b2dd6..740e36d96 100644 --- a/Test/.distfiles +++ b/Test/.distfiles @@ -7,6 +7,7 @@ A03quoting.ztst A04redirect.ztst A05execution.ztst A06assign.ztst +A07control.ztst B01cd.ztst B02typeset.ztst B03print.ztst diff --git a/Test/A07control.ztst b/Test/A07control.ztst new file mode 100644 index 000000000..b9b89b588 --- /dev/null +++ b/Test/A07control.ztst @@ -0,0 +1,112 @@ +# 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 + + 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 |