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BASH PATCH REPORT
=================
Bash-Release: 3.1
Patch-ID: bash31-010
Bug-Reported-by: vw@vonwolff.de
Bug-Reference-ID: <20060123135234.1AC2F1D596@wst07.vonwolff.de>
Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2006-01/msg00090.html
Bug-Description:
There is a difference in behavior between bash-3.0 and bash-3.1 involving
parsing of single- and double-quoted strings occurring in old-style
command substitution. The difference has to do with how backslashes are
processed. This patch restores a measure of backwards compatibility while
the question of POSIX conformance and ultimately correct behavior is discussed.
Patch:
*** ../bash-3.1/parse.y Fri Nov 11 23:14:18 2005
--- parse.y Wed Jan 25 14:55:18 2006
***************
*** 2899,2903 ****
else if MBTEST(qc == '`' && (ch == '"' || ch == '\'') && in_comment == 0)
{
! nestret = parse_matched_pair (0, ch, ch, &nestlen, rflags);
goto add_nestret;
}
--- 2901,2909 ----
else if MBTEST(qc == '`' && (ch == '"' || ch == '\'') && in_comment == 0)
{
! /* Add P_ALLOWESC so backslash quotes the next character and
! shell_getc does the right thing with \<newline>. We do this for
! a measure of backwards compatibility -- it's not strictly the
! right POSIX thing. */
! nestret = parse_matched_pair (0, ch, ch, &nestlen, rflags|P_ALLOWESC);
goto add_nestret;
}
*** ../bash-3.1/patchlevel.h Wed Jul 20 13:58:20 2005
--- patchlevel.h Wed Dec 7 13:48:42 2005
***************
*** 26,30 ****
looks for to find the patch level (for the sccs version string). */
! #define PATCHLEVEL 9
#endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
looks for to find the patch level (for the sccs version string). */
! #define PATCHLEVEL 10
#endif /* _PATCHLEVEL_H_ */
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