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Gecko/20030225

Description of problem:
GNU sed ver. 4.x-4.0.6 have bugs of numbered match substitution.


Version-Release number of selected component (if applicable):
sed-4.0.5-1

How reproducible:
Always

Steps to Reproduce:
1.     echo "x" | sed -n 's/x/SUBST/2p'

Actual Results:  Substitution is not occured.
But the pattern space is "p"rinted as follows:

[prompt]$ echo "x" | sed -n 's/x/SUBST/2p'
x
[prompt]$

Expected Results:  Substitution is not occured, and the patten space
is not printed.

[prompt]$ echo "x" | sed -n 's/x/SUBST/2p'
[prompt]$


Additional info:

This problem was fixed by 4.0.7 release.
From Changelog of 4.0.9 release:

2003-03-23  Paolo Bonzini  <bonzini>

        * sed/execute.c (do_subst): fix several bugs with
        numbered matches
        * testsuite/numsub2.good, testsuite/numsub2.inp,
        testsuite/numsub2.sed, testsuite/numsub3.good,
        testsuite/numsub3.inp, testsuite/numsub3.sed,
        testsuite/numsub4.good, testsuite/numsub4.inp,
        testsuite/numsub4.sed, testsuite/numsub5.good,
        testsuite/numsub5.inp, testsuite/numsub5.sed:
        regression tests for the bugs