1*13de33a5SJulio Merino 2*13de33a5SJulio Merinoe= q='?' a='*' t=texttext s='ast*que?non' p='/et[c]/' w='a b c' b='{{(#)}}' 3*13de33a5SJulio Merinoh='##' 4*13de33a5SJulio Merinofailures='' 5*13de33a5SJulio Merinook='' 6*13de33a5SJulio Merino 7*13de33a5SJulio Merinotestcase() { 8*13de33a5SJulio Merino code="$1" 9*13de33a5SJulio Merino expected="$2" 10*13de33a5SJulio Merino oIFS="$IFS" 11*13de33a5SJulio Merino eval "$code" 12*13de33a5SJulio Merino IFS='|' 13*13de33a5SJulio Merino result="$#|$*" 14*13de33a5SJulio Merino IFS="$oIFS" 15*13de33a5SJulio Merino if [ "x$result" = "x$expected" ]; then 16*13de33a5SJulio Merino ok=x$ok 17*13de33a5SJulio Merino else 18*13de33a5SJulio Merino failures=x$failures 19*13de33a5SJulio Merino echo "For $code, expected $expected actual $result" 20*13de33a5SJulio Merino fi 21*13de33a5SJulio Merino} 22*13de33a5SJulio Merino 23*13de33a5SJulio Merino# We follow original ash behaviour for quoted ${var+-=?} expansions: 24*13de33a5SJulio Merino# a double-quote in one switches back to unquoted state. 25*13de33a5SJulio Merino# This allows expanding a variable as a single word if it is set 26*13de33a5SJulio Merino# and substituting multiple words otherwise. 27*13de33a5SJulio Merino# It is also close to the Bourne and Korn shells. 28*13de33a5SJulio Merino# POSIX leaves this undefined, and various other shells treat 29*13de33a5SJulio Merino# such double-quotes as introducing a second level of quoting 30*13de33a5SJulio Merino# which does not do much except quoting close braces. 31*13de33a5SJulio Merino 32*13de33a5SJulio Merinotestcase 'set -- "${p+"/et[c]/"}"' '1|/etc/' 33*13de33a5SJulio Merinotestcase 'set -- "${p-"/et[c]/"}"' '1|/et[c]/' 34*13de33a5SJulio Merinotestcase 'set -- "${p+"$p"}"' '1|/etc/' 35*13de33a5SJulio Merinotestcase 'set -- "${p-"$p"}"' '1|/et[c]/' 36*13de33a5SJulio Merinotestcase 'set -- "${p+"""/et[c]/"}"' '1|/etc/' 37*13de33a5SJulio Merinotestcase 'set -- "${p-"""/et[c]/"}"' '1|/et[c]/' 38*13de33a5SJulio Merinotestcase 'set -- "${p+"""$p"}"' '1|/etc/' 39*13de33a5SJulio Merinotestcase 'set -- "${p-"""$p"}"' '1|/et[c]/' 40*13de33a5SJulio Merinotestcase 'set -- "${p+"\@"}"' '1|@' 41*13de33a5SJulio Merinotestcase 'set -- "${p+"'\''/et[c]/'\''"}"' '1|/et[c]/' 42*13de33a5SJulio Merino 43*13de33a5SJulio Merinotest "x$failures" = x 44