* "expanding" to copy-earlier-word @ 2015-08-13 9:57 Dominik Vogt 2015-08-13 9:59 ` Dominik Vogt 2015-08-13 10:24 ` Peter Stephenson 0 siblings, 2 replies; 7+ messages in thread From: Dominik Vogt @ 2015-08-13 9:57 UTC (permalink / raw) To: Zsh Users I've bound ctrl-j to copy-earlier-word, so I can copy the last word of the previously executed command line to the current command line. Is there a way to do the same as part of the expansion process? What I'd like to have this something like this: $ make foo $ ./<copy-earlier-word> or even $ make foo; ./<copy-earlier-word> (where "<copy-earlier-word>" stands for something to be expanded to the previous word, i.e. "foo"). In the shell history the command should be stored before expansion takes place. Ciao Dominik ^_^ ^_^ -- Dominik Vogt IBM Germany ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: "expanding" to copy-earlier-word 2015-08-13 9:57 "expanding" to copy-earlier-word Dominik Vogt @ 2015-08-13 9:59 ` Dominik Vogt 2015-08-13 10:24 ` Peter Stephenson 1 sibling, 0 replies; 7+ messages in thread From: Dominik Vogt @ 2015-08-13 9:59 UTC (permalink / raw) To: Zsh Users On Thu, Aug 13, 2015 at 10:57:27AM +0100, Dominik Vogt wrote: > I've bound ctrl-j to copy-earlier-word, (Except that I'm talking about "insert-last-word" which is bound to meta-.) Ciao Dominik ^_^ ^_^ -- Dominik Vogt IBM Germany ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: "expanding" to copy-earlier-word 2015-08-13 9:57 "expanding" to copy-earlier-word Dominik Vogt 2015-08-13 9:59 ` Dominik Vogt @ 2015-08-13 10:24 ` Peter Stephenson 2015-08-13 11:45 ` Dominik Vogt 1 sibling, 1 reply; 7+ messages in thread From: Peter Stephenson @ 2015-08-13 10:24 UTC (permalink / raw) To: Zsh Users On Thu, 13 Aug 2015 10:57:27 +0100 Dominik Vogt <vogt@linux.vnet.ibm.com> wrote: > I've bound ctrl-j to copy-earlier-word, so I can copy the last word > of the previously executed command line to the current command > line. Is there a way to do the same as part of the expansion > process? Hisotry expansion allows you to select previous words, but you'll need to count from the left when retrieving words from the current line: you can use ":$" to indicate the last argument, which with !# is the previous argument, but "-" indicates a range, not a negative offset. There was some discussion about this anomaly a couple of months ago; it's potentially fixable with some new syntax (I've forgotten if there was a conclusion). > What I'd like to have this something like this: > > $ make foo > $ ./<copy-earlier-word> ./!:$ > or even > > $ make foo; ./<copy-earlier-word> make foo; ./!#:1 (remember history expansion starts with word 0). Unfortunately !#:$ gets you the ";" because while history expansion knows about dividing into words it doesn't know which words are syntactically important. pws ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: "expanding" to copy-earlier-word 2015-08-13 10:24 ` Peter Stephenson @ 2015-08-13 11:45 ` Dominik Vogt 2015-08-13 12:16 ` Peter Stephenson 0 siblings, 1 reply; 7+ messages in thread From: Dominik Vogt @ 2015-08-13 11:45 UTC (permalink / raw) To: Zsh Users On Thu, Aug 13, 2015 at 11:24:22AM +0100, Peter Stephenson wrote: > On Thu, 13 Aug 2015 10:57:27 +0100 > Dominik Vogt <vogt@linux.vnet.ibm.com> wrote: > > I've bound ctrl-j to copy-earlier-word, so I can copy the last word > > of the previously executed command line to the current command > > line. Is there a way to do the same as part of the expansion > > process? > > Hisotry expansion allows you to select previous words, but you'll need > to count from the left when retrieving words from the current line: you > can use ":$" to indicate the last argument, which with !# is the > previous argument, but "-" indicates a range, not a negative offset. > There was some discussion about this anomaly a couple of months ago; > it's potentially fixable with some new syntax (I've forgotten if there > was a conclusion). > > > What I'd like to have this something like this: > > > > $ make foo > > $ ./<copy-earlier-word> > > ./!:$ Sort of works for me after "setopt histexpand". Unfortunately, is saves "./foo" in the history instead of "./!:$". It looks like there's no option to have the unexpanded string stored in the history? According to the man page history expansion comes first, followed by alias expansion, the result of which is not stored in the history files, so I guess the sequence is 1) history expansion, 2) save command line in history, 3) alias expansion, 4) everything else. If there was a way to change that order to 1) save command line in history, 2) alias expansion, 3) history expansion, 4) everything else. one could even have history expansion in aliases: $ alias -g PW='!:$' $ make foo $ echo PW (I guess the global alias wouldn't allow "echo ./PW" anyway). Ciao Dominik ^_^ ^_^ -- Dominik Vogt IBM Germany ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: "expanding" to copy-earlier-word 2015-08-13 11:45 ` Dominik Vogt @ 2015-08-13 12:16 ` Peter Stephenson 2015-08-13 16:22 ` Bart Schaefer 0 siblings, 1 reply; 7+ messages in thread From: Peter Stephenson @ 2015-08-13 12:16 UTC (permalink / raw) To: Zsh Users On Thu, 13 Aug 2015 12:45:55 +0100 Dominik Vogt <vogt@linux.vnet.ibm.com> wrote: > Sort of works for me after "setopt histexpand". Unfortunately, is > saves "./foo" in the history instead of "./!:$". It looks like > there's no option to have the unexpanded string stored in the > history? No, that's not how history works. It's hard-wired to work only immediately on input, before anything else happens, and pass the processed output to the rest of the shell. It's not possible to get it to behave any other way. You can do this... % zmodload zsh/parameter % echo foo; print ./${${(z)history[$HISTCMD]}[-4] foo ./foo in which: $history[$HISTCMD] is the full current history line. (z) splits it into words using shell syntax. ";" is a word here, too. Hence "foo" is the fourth word from the right, [-4]. I would have thought a function with a single argument was much simpler... pws ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: "expanding" to copy-earlier-word 2015-08-13 12:16 ` Peter Stephenson @ 2015-08-13 16:22 ` Bart Schaefer 2015-08-13 16:48 ` Peter Stephenson 0 siblings, 1 reply; 7+ messages in thread From: Bart Schaefer @ 2015-08-13 16:22 UTC (permalink / raw) To: Peter Stephenson, Zsh Users On Aug 13, 1:16pm, Peter Stephenson wrote: } } I would have thought a function with a single argument was much simpler... Er, do you mean we should have a function instead of $history[HISTCMD] ? -- Barton E. Schaefer ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: "expanding" to copy-earlier-word 2015-08-13 16:22 ` Bart Schaefer @ 2015-08-13 16:48 ` Peter Stephenson 0 siblings, 0 replies; 7+ messages in thread From: Peter Stephenson @ 2015-08-13 16:48 UTC (permalink / raw) To: Zsh Users On Thu, 13 Aug 2015 09:22:09 -0700 Bart Schaefer <schaefer@brasslantern.com> wrote: > On Aug 13, 1:16pm, Peter Stephenson wrote: > } > } I would have thought a function with a single argument was much simpler... > > Er, do you mean we should have a function instead of $history[HISTCMD] ? No, I mean Dominik is probably a lot better off doing fn() { make $1 ./$1 } or something such. Arguably zsh/parmeters could provide more detail of the current command line. pws ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2015-08-13 16:49 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2015-08-13 9:57 "expanding" to copy-earlier-word Dominik Vogt 2015-08-13 9:59 ` Dominik Vogt 2015-08-13 10:24 ` Peter Stephenson 2015-08-13 11:45 ` Dominik Vogt 2015-08-13 12:16 ` Peter Stephenson 2015-08-13 16:22 ` Bart Schaefer 2015-08-13 16:48 ` Peter Stephenson
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