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| From | Chet Ramey <chet.ramey@case.edu> |
| Newsgroups | gnu.bash.bug |
| Subject | Re: Q: Is there a way to tell why DEBUG trap was triggered? |
| Date | Mon, 16 Mar 2020 13:57:30 -0400 |
| Lines | 28 |
| Approved | bug-bash@gnu.org |
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On 3/16/20 1:00 PM, Greg Wooledge wrote: > On Mon, Mar 16, 2020 at 09:47:44AM -0400, Chet Ramey wrote: >> On 3/15/20 7:41 AM, Šimon Let wrote: >>> Hi All, >>> >>> I'm using PROMPT_COMMAND and DEBUG trap to emulate "PRE" and "POST" hooks >>> in bash. I have run into the issue where the DEBUG trap gets triggered when >>> any custom readline widget/function is executed. I would like to >>> programmatically determine if the DEBUG trap was triggered for a "real" >>> interactive command or if it was triggered for a custom readline widget. >> Since the DEBUG trap happens before the command executes, it's not a real >> `post-command' hook. > > I think they simply stated things backwards. The DEBUG trap is a > pre-command hook, and PROMPT_COMMAND is post-command. Sort of/close > enough. Yes, apparently. > That said, I'm not sure what a "custom readline widget" is. A binding to a shell function or other program installed with `bind -x'. -- ``The lyf so short, the craft so long to lerne.'' - Chaucer ``Ars longa, vita brevis'' - Hippocrates Chet Ramey, UTech, CWRU chet@case.edu http://tiswww.cwru.edu/~chet/
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Re: Q: Is there a way to tell why DEBUG trap was triggered? Chet Ramey <chet.ramey@case.edu> - 2020-03-16 13:57 -0400
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