From: Vin Shelton <acs@alumni.princeton.edu>
To: Peter Stephenson <p.stephenson@samsung.com>
Cc: "Zsh Hackers' List" <zsh-workers@zsh.org>
Subject: Re: capturing output of !! not working
Date: Thu, 19 Mar 2015 08:27:56 -0400 [thread overview]
Message-ID: <CACeGjnUxt0fZN2ArpV_8ECVF-_1KTtorO6rb11DzmOkOy3Xp4g@mail.gmail.com> (raw)
In-Reply-To: <20150319105716.620cd931@pwslap01u.europe.root.pri>
But it still doesn't work. The !! command now appears inside the $(),
but the output is not captured:
$ mkdir foo
$ cd foo
$ touch a
$ echo abc > b
$ grep -l abc ?
b
$ ls -l $(!!)
ls -l $(grep -l abc ?)
total 4
-rw-r--r-- 1 acs acs 0 Mar 19 08:25 a
-rw-r--r-- 1 acs acs 4 Mar 19 08:25 b
- Vin
On Thu, Mar 19, 2015 at 6:57 AM, Peter Stephenson
<p.stephenson@samsung.com> wrote:
> On Wed, 18 Mar 2015 21:49:37 -0400
> Vin Shelton <acs@alumni.princeton.edu> wrote:
>> $ ls -l $(!!)
>> ls -l $()
>
> This is due to special code for handling aliases inside command
> substitutions that got applied too widely because the flag that
> indicates aliases also indicates history expansion; however, there's a
> discriminator in another bit. I suspect restricting application of
> INP_ALIAS is a better fix overall, but it needs a lot more code tracking
> down plus safety checks.
>
> Another case where we need a framework for testing interactive shells.
>
> pws
>
> diff --git a/Src/hist.c b/Src/hist.c
> index aa07ce8..b7ef522 100644
> --- a/Src/hist.c
> +++ b/Src/hist.c
> @@ -338,7 +338,8 @@ ihwaddc(int c)
> * fashion as we never need the expansion in the history
> * line, only in the lexer and above.
> */
> - !((histactive & HA_INWORD) && (inbufflags & INP_ALIAS))) {
> + !((histactive & HA_INWORD) &&
> + (inbufflags & (INP_ALIAS|INP_HIST)) == INP_ALIAS)) {
> /* Quote un-expanded bangs in the history line. */
> if (c == bangchar && stophist < 2 && qbang)
> /* If qbang is not set, we do not escape this bangchar as it's *
> @@ -901,7 +902,8 @@ ihungetc(int c)
> zlemetall--;
> exlast++;
> }
> - if (!(histactive & HA_INWORD) || !(inbufflags & INP_ALIAS)) {
> + if (!(histactive & HA_INWORD) ||
> + (inbufflags & (INP_ALIAS|INP_HIST)) != INP_ALIAS) {
> DPUTS(hptr <= chline, "BUG: hungetc attempted at buffer start");
> hptr--;
> DPUTS(*hptr != (char) c, "BUG: wrong character in hungetc() ");
next prev parent reply other threads:[~2015-03-19 12:28 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-19 1:49 Vin Shelton
2015-03-19 2:28 ` Bart Schaefer
2015-03-19 10:57 ` Peter Stephenson
2015-03-19 12:27 ` Vin Shelton [this message]
2015-03-19 12:53 ` Peter Stephenson
2015-03-20 10:57 ` Peter Stephenson
2015-03-20 16:04 ` Bart Schaefer
2015-03-22 18:35 ` Peter Stephenson
2015-03-22 19:18 ` Peter Stephenson
2015-03-22 23:22 ` Bart Schaefer
2015-03-23 21:34 ` Peter Stephenson
2015-03-24 0:54 ` Testing interactive features (Re: capturing output of !! not working) Bart Schaefer
2015-03-24 4:12 ` Bart Schaefer
2015-03-24 4:45 ` Bart Schaefer
2015-03-24 16:09 ` Bart Schaefer
2016-05-23 14:53 ` Mikael Magnusson
2015-03-25 15:48 ` PATCH: Removing aliases from history, 2015 style (was " Peter Stephenson
2015-03-25 17:57 ` PATCH: Removing aliases from history, 2015 style Peter Stephenson
2015-03-25 18:42 ` Mikael Magnusson
2015-03-27 10:06 ` Peter Stephenson
2015-03-27 15:25 ` Bart Schaefer
2015-03-27 15:41 ` Peter Stephenson
2015-03-27 17:17 ` Bart Schaefer
2015-03-27 17:47 ` Peter Stephenson
2015-03-29 18:38 ` Peter Stephenson
2015-03-25 18:58 ` Bart Schaefer
2015-03-25 19:40 ` PATCH: Removing aliases from history, 2015 style (was capturing output of !! not working) Bart Schaefer
2015-03-26 3:43 ` Word breaks around aliased tokens (was Re: PATCH: Removing aliases from history, 2015 style (was capturing output of !! not working)) Bart Schaefer
2015-03-30 18:04 ` Daniel Shahaf
2015-03-30 20:05 ` Mikael Magnusson
2015-03-30 18:08 ` Daniel Shahaf
2015-03-26 9:41 ` PATCH: Removing aliases from history, 2015 style (was capturing output of !! not working) Peter Stephenson
2015-03-26 15:22 ` Bart Schaefer
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