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Re: [mapfile]: problem reentrance with normal file

Started byChet Ramey <chet.ramey@case.edu>
First post2018-11-12 13:05 -0500
Last post2018-11-12 13:05 -0500
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  Re: [mapfile]: problem reentrance with normal file Chet Ramey <chet.ramey@case.edu> - 2018-11-12 13:05 -0500

#14800 — Re: [mapfile]: problem reentrance with normal file

FromChet Ramey <chet.ramey@case.edu>
Date2018-11-12 13:05 -0500
SubjectRe: [mapfile]: problem reentrance with normal file
Message-ID<mailman.3931.1542045976.1284.bug-bash@gnu.org>
On 11/12/18 10:48 AM, Didou Serge wrote:
> Ok, in this case, this should not work either:
> 
> mapfile -C xx -c 1 UU  < <( echo -e "Premiere ligne" A{1..45} "\nDeuxieme
> ligne" B{1..45} "\nTroisieme ligne" C{1..45})
> 
> But, this form work fine.

Because the read function underlying mapfile notes that the file descriptor
is not seekable and reads only a single line at a time rather than a full
buffer of data.

Chet

-- 
``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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