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Re: History !# substitutions
- X-seq: zsh-workers 1218
- From: Peter Stephenson <pws@xxxxxx>
- To: zsh-workers@xxxxxxxxxxxxxxx
- Subject: Re: History !# substitutions
- Date: Wed, 29 May 1996 10:19:06 +0200
- In-reply-to: "schaefer@xxxxxxxxxxxxxxxxxxxxxxx"'s message of "Tue, 28 May 1996 22:33:03 MET." <960528223307.ZM2584@xxxxxxxxxxxxxxxxxxxxxxx>
> The !# substitution, which shuffles words from the current command line,
> has always been a bit flaky in zsh, but now it seems to be broken entirely.
>
> zagzig% echo foo bar !#:1
> zsh: no words available from current command
Profuse apologies: this no doubt came in why I upgraded the
word-selection part of the history mechanism and didn't know enough
about !# to make it work.
The following seems to do the trick; do let me know of unforeseen
behaviour. (I've deleted that particular error message since `no such
word in event' seems to describe the remaining occasions when there is
an error entirely adequately.) I hope flakiness can now be avoided
entirely.
*** Src/hist.c.curhist Fri May 10 22:22:30 1996
--- Src/hist.c Wed May 29 10:12:15 1996
***************
*** 1111,1131 ****
getargs(Histent elist, int arg1, int arg2)
{
char *ret;
! int pos1;
! if (arg1 >= elist->nwords || arg2 >= elist->nwords) {
/* remember, argN is indexed from 0, nwords is total no. of words */
inerrflush();
! if (!elist->nwords)
! zerr("no words available from current command", NULL, 0);
! else
! zerr("no such word in event", NULL, 0);
return NULL;
}
! pos1 = elist->words[2*arg1];
ret = dupstring(elist->text + pos1);
! ret[elist->words[2*arg2+1] - pos1] = '\0';
return ret;
}
--- 1111,1137 ----
getargs(Histent elist, int arg1, int arg2)
{
char *ret;
! short *words;
! int pos1, nwords;
! if (elist == curhistent) {
! words = chwords;
! nwords = chwordpos/2;
! } else {
! words = elist->words;
! nwords = elist->nwords;
! }
!
! if (arg1 >= nwords || arg2 >= nwords) {
/* remember, argN is indexed from 0, nwords is total no. of words */
inerrflush();
! zerr("no such word in event", NULL, 0);
return NULL;
}
! pos1 = words[2*arg1];
ret = dupstring(elist->text + pos1);
! ret[words[2*arg2+1] - pos1] = '\0';
return ret;
}
--
Peter Stephenson <pws@xxxxxx> Tel: +49 33762 77366
WWW: http://www.ifh.de/~pws/ Fax: +49 33762 77330
Deutches Electronen-Synchrotron --- Institut fuer Hochenergiephysik Zeuthen
DESY-IfH, 15735 Zeuthen, Germany.
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