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sh: Add testcases for double-quotes within quoted ${var+-...} (non-POSIX).

POSIX leaves things like "${var+"word"}" undefined.
We follow traditional ash behaviour here.
Hence, these testcases also work on stable/8.
This commit is contained in:
Jilles Tjoelker 2010-04-18 22:13:45 +00:00
parent b28889a2fc
commit 348c81a032
Notes: svn2git 2020-12-20 02:59:44 +00:00
svn path=/head/; revision=206817

View File

@ -0,0 +1,44 @@
# $FreeBSD$
e= q='?' a='*' t=texttext s='ast*que?non' p='/et[c]/' w='a b c' b='{{(#)}}'
h='##'
failures=''
ok=''
testcase() {
code="$1"
expected="$2"
oIFS="$IFS"
eval "$code"
IFS='|'
result="$#|$*"
IFS="$oIFS"
if [ "x$result" = "x$expected" ]; then
ok=x$ok
else
failures=x$failures
echo "For $code, expected $expected actual $result"
fi
}
# We follow original ash behaviour for quoted ${var+-=?} expansions:
# a double-quote in one switches back to unquoted state.
# This allows expanding a variable as a single word if it is set
# and substituting multiple words otherwise.
# It is also close to the Bourne and Korn shells.
# POSIX leaves this undefined, and various other shells treat
# such double-quotes as introducing a second level of quoting
# which does not do much except quoting close braces.
testcase 'set -- "${p+"/et[c]/"}"' '1|/etc/'
testcase 'set -- "${p-"/et[c]/"}"' '1|/et[c]/'
testcase 'set -- "${p+"$p"}"' '1|/etc/'
testcase 'set -- "${p-"$p"}"' '1|/et[c]/'
testcase 'set -- "${p+"""/et[c]/"}"' '1|/etc/'
testcase 'set -- "${p-"""/et[c]/"}"' '1|/et[c]/'
testcase 'set -- "${p+"""$p"}"' '1|/etc/'
testcase 'set -- "${p-"""$p"}"' '1|/et[c]/'
testcase 'set -- "${p+"\@"}"' '1|@'
testcase 'set -- "${p+"'\''/et[c]/'\''"}"' '1|/et[c]/'
test "x$failures" = x