Date: Fri, 29 Oct 2010 13:42:18 +0000 (UTC) From: Jilles Tjoelker <jilles@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/bin/sh expand.c expand.h mksyntax.c parser.c parser.h src/tools/regression/bin/sh/expansion plus-minus6.0 Message-ID: <201010291342.o9TDgm7Y057841@repoman.freebsd.org>
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jilles 2010-10-29 13:42:18 UTC
FreeBSD src repository
Modified files:
bin/sh expand.c expand.h mksyntax.c parser.c
parser.h
Added files:
tools/regression/bin/sh/expansion plus-minus6.0
Log:
SVN rev 214512 on 2010-10-29 13:42:18Z by jilles
sh: Do IFS splitting on word in ${v+word} and ${v-word}.
The code is inspired by NetBSD sh somewhat, but different because we
preserve the old Almquist/Bourne/Korn ability to have an unquoted part in a
quoted ${v+word}. For example, "${v-"*"}" expands to $v as a single field if
v is set, but generates filenames otherwise.
Note that this is the only place where we split text literally from the
script (the similar ${v=word} assigns to v and then expands $v). The parser
must now add additional markers to allow the expansion code to know whether
arbitrary characters in substitutions are quoted.
Example:
for i in ${$+a b c}; do echo $i; done
Exp-run done by: pav (with some other sh(1) changes)
Revision Changes Path
1.72 +27 -10 src/bin/sh/expand.c
1.14 +2 -0 src/bin/sh/expand.h
1.33 +1 -0 src/bin/sh/mksyntax.c
1.95 +12 -4 src/bin/sh/parser.c
1.15 +1 -0 src/bin/sh/parser.h
1.1 +34 -0 src/tools/regression/bin/sh/expansion/plus-minus6.0 (new)
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