On Fri, Dec 8, 2023 at 2:03 PM Bart Schaefer <schaefer@brasslantern.com>
wrote:

> The test is confirming that zexpandtabs() doesn't infinite-loop on broken
> multibyte input which might include nul bytes.  Could replace the "tr" with
> something else.
>

E.g. (not bothering to worry about gmail wrapping here)

diff --git a/Test/B03print.ztst b/Test/B03print.ztst
index 4d2cf9764..93a9669b0 100644
--- a/Test/B03print.ztst
+++ b/Test/B03print.ztst
@@ -305,8 +305,9 @@
  foo+=$'\tone\ttwo\tthree\tfour\n'
  foo+=$'\t\tone\t\ttwo\t\tthree\t\tfour'
  foo+='\0' # regression test for multibyte tab expand
- print -x4 $foo | tr '\0' Z # avoid raw nul byte in expected output below
- print -X4 $foo | tr '\0' Z
+ # avoid raw nul byte in expected output below
+ print ${"$(print -x4 $foo)"/$'\0'/Z}
+ print ${"$(print -X4 $foo)"/$'\0'/Z}
 0:Tab expansion by print
 >one two three four
 >    one two three four