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Date:      Sun, 05 Mar 2017 01:39:26 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 217553] [patch] awk(1) assignment arguments do not accept values with a leading '='
Message-ID:  <bug-217553-8@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D217553

            Bug ID: 217553
           Summary: [patch] awk(1) assignment arguments do not accept
                    values with a leading '=3D'
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Keywords: patch
          Severity: Affects Some People
          Priority: ---
         Component: bin
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: kdrakehp@zoho.com
          Keywords: patch

Created attachment 180522
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D180522&action=
=3Dedit
Remove the second '=3D' check in `isclvar'.

awk(1) explicitly disallows command-line assignments where the
assignment value has a leading '=3D'.  This behavior is contrary to the
standard, which places no such restriction on assignment values.

>From the standard:
        The characters following the <equals-sign> shall be interpreted
        as if they appeared in the awk program preceded and followed by
        a double-quote ('"') character, as a STRING token (see Grammar),
        except that if the last character is an unescaped <backslash>,
        it shall be interpreted as a literal <backslash> rather than as
        the first character of the sequence "\"".


How to reproduce:

        $ awk 'END{print var}' var=3D'=3Dvalue=3D' < /dev/null
        awk: can't open file var=3D=3Dvalue=3D
         source line number 1

Expected output:
        =3Dvalue=3D


        $ awk -v var=3D'=3Dvalue=3D' 'BEGIN{print var}'
        awk: invalid -v option argument: var=3D=3D text

Expected output:
        =3Dvalue=3D

--=20
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