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Re^4: simplifying substitution

by Polyglot (Chaplain)
on Mar 08, 2021 at 14:18 UTC ( [id://11129333]=note: print w/replies, xml ) Need Help??


in reply to Re^3: simplifying substitution
in thread simplifying substitution

I get this output from that command (I'm not on Windows):

Bareword found where operator expected at -e line 1, near "s/ /v/r"
Unquoted string "r" may clash with future reserved word at -e line 1.
Can't modify string in substitution (s///) at -e line 1, near "s/ /v/r
"
syntax error at -e line 1, near "s/ /v/r
"
Execution of -e aborted due to compilation errors.

[download]

When I check the version, I get this:

perl -v

This is perl 5, version 12, subversion 4 (v5.12.4) built for darwin-th
+read-multi-2level
(with 2 registered patches, see perl -V for more detail)

Copyright 1987-2010, Larry Wall

[download]

Blessings,

~Polyglot~

Replies are listed 'Best First'.
Re^5: simplifying substitution
by choroba (Cardinal) on Mar 08, 2021 at 14:23 UTC
    OK, 5.12 doesn't have /r. So what about 
    perl -lwe '$v = qq( $]); $v =~ s/ /v/; print $v'

    [download]
    map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]
[reply]
[d/l]
[select]
      perl -lwe '$v = qq( $]); $v =~ s/ /v/; print $v'
v5.012004

      [download]

      Blessings,

      ~Polyglot~

[reply]
[d/l]
        See? Space works on the match side.

        map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]
[reply]
[d/l]

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