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| From | Chet Ramey <chet.ramey@case.edu> |
| Newsgroups | gnu.bash.bug |
| Subject | Re: "shell-expand-line" wrongly(?) expanded $'foo' to $foo |
| Date | Wed, 1 Jul 2020 15:38:59 -0400 |
| Organization | ITS, Case Western Reserve University |
| Lines | 29 |
| Approved | bug-bash@gnu.org |
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| To | Clark Wang <dearvoid@gmail.com>, "bash.bug list" <bug-bash@gnu.org> |
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On 7/1/20 8:48 AM, Clark Wang wrote: > See the following example (tested with bash 5.0.7): > > > # bind -q shell-expand-line > shell-expand-line can be invoked via "\e\C-e". > > # echo $PWD # press ESC C-e > # echo /root > > # echo $( pwd ) # press ESC C-e > # echo /root > > # echo $'foo' # press ESC C-e > # echo $foo > > > Is this a bug? I suppose it is. $'...' isn't a word expansion, it's a form of quoting that gets translated and transformed into '...' by the parser. When the word expansion code sees $'...', unexpectedly, it just performs the usual quote removal. -- ``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: "shell-expand-line" wrongly(?) expanded $'foo' to $foo Chet Ramey <chet.ramey@case.edu> - 2020-07-01 15:38 -0400
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