Re: [bug] within 'eval', -e/-o errexit appears active, but is inactive
Martijn Dekker dixit: > I noticed something strange while executing some 'eval'-ed commands: the -e/-o > errexit appears to become active out of nowhere. > > $ mksh -c 'echo $-; eval '\''echo $-'\''; echo $-' > hc > ehc > hc Found to be caused by reusing bit7 of the ERREXIT flag for nefarious purposes; fixed, but we could not get completely rid of the flag. > However, both pdksh and mksh render 'set -e' ineffective for eval'ed commands, > which is a bug in itself; no other shell including ksh93 shares this > behaviour. > Thus the expected output for the last command above is 'hc' and nothing else. When run under -e of course. Fixed, this was way harder. Thanks, //mirabilos -- This space for rent. https://paypal.me/mirabilos to support my work.
[bug] within 'eval', -e/-o errexit appears active, but is inactive
I noticed something strange while executing some 'eval'-ed commands: the -e/-o errexit appears to become active out of nowhere. $ mksh -c 'echo $-; eval '\''echo $-'\''; echo $-' hc ehc hc But it looks like it's appearances only; it's not actually effective. $ mksh -c 'eval '\''echo $-; false; echo phantom e'\' ehc phantom e I tested mksh versions down to R49 and they all have this bug. However, its ancestor pdksh does not have this bug. However, both pdksh and mksh render 'set -e' ineffective for eval'ed commands, which is a bug in itself; no other shell including ksh93 shares this behaviour. Thus the expected output for the last command above is 'hc' and nothing else. Thanks, - M. -- modernish -- harness the shell https://github.com/modernish/modernish
