Possible issue with gawk 5.0.1-1: Getting new warnings
Houder
houder@xs4all.nl
Fri Jul 12 10:48:00 GMT 2019
Hi,
Apparently Corinna V. (the maintainer of gawk) is not available at the moment.
On Thu, 11 Jul 2019 11:51:09, Vipul P wrote:
> Hello,
>
> Here is a sample script to invoke awk:
>
> $ cat ./gawk_error.sh
> #!/bin/sh
> echo "This:is:a:colon:separated:line:%%%:" | awk '{
> gsub("\\%", "%25", $0);
> gsub("\\:", "%3A", $0);
> print
> }'
?????
gsub(regexp, replacement[, target])
echo "This:is:a:colon:separated:line:%%%:" | awk '{
gsub(/%/, "%25");
gsub(/:/, "%3A");
print
}'
> ----
>
> If I invoke it with gawk 5.0.1-1, I see warnings as below:
>
> $ uname -a
> CYGWIN_NT-10.0 MyPC 3.0.7(0.338/5/3) 2019-04-30 18:08 x86_64 Cygwin
>
> $ awk -V
> GNU Awk 5.0.1, API: 2.0 (GNU MPFR 4.0.2, GNU MP 6.1.2)
> Copyright (C) 1989, 1991-2019 Free Software Foundation.
> ...
>
> $ ./gawk_error.sh
> awk: cmd. line:2: (FILENAME=- FNR=1) warning: regexp escape sequence `\%'
> is not a known regexp operator
> awk: cmd. line:3: (FILENAME=- FNR=1) warning: regexp escape sequence `\:'
> is not a known regexp operator
> This%3Ais%3Aa%3Acolon%3Aseparated%3Aline%3A%25%25%25%3A
I am not surprised to see these specific warnings ...
See 3.2 (esacpe sequences) of GAWK: Effective AWK programming.
> -----
> This script runs without any warnings with older versions of gawk:
[snip]
https://cygwin.com/ml/cygwin/2019-04/msg00095.html
( [ANNOUNCEMENT] gawk 5.0.0-1 )
Item 3
> ----
>
> The script runs without any warnings on Linux and other Unix variants.
Using version 5 of gawk?
>
> Is this a regression in gawk 5.0.1-1 on Cygwin ?
Not very likely, as Corinna V. uses the tarball provided by Arnold R.
Regards,
Henri
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