update from Diomidis Spinellis <dspin@leon.nrcps.ariadne-t.gr>

This commit is contained in:
cgd 1994-02-03 23:32:35 +00:00
parent 9be21c6baa
commit c9f13cff75
3 changed files with 817 additions and 0 deletions

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usr.bin/sed/TEST/hanoi.sed Normal file
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# Towers of Hanoi in sed.
#
# @(#)hanoi.sed 8.1 (Berkeley) 6/6/93
#
#
# Ex:
# Run "sed -f hanoi.sed", and enter:
#
# :abcd: : :<CR><CR>
#
# note -- TWO carriage returns, a peculiarity of sed), this will output the
# sequence of states involved in moving 4 rings, the largest called "a" and
# the smallest called "d", from the first to the second of three towers, so
# that the rings on any tower at any time are in descending order of size.
# You can start with a different arrangement and a different number of rings,
# say :ce:b:ax: and it will give the shortest procedure for moving them all
# to the middle tower. The rules are: the names of the rings must all be
# lower-case letters, they must be input within 3 fields (representing the
# towers) and delimited by 4 colons, such that the letters within each field
# are in alphabetical order (i.e. rings are in descending order of size).
#
# For the benefit of anyone who wants to figure out the script, an "internal"
# line of the form
# b:0abx:1a2b3 :2 :3x2
# has the following meaning: the material after the three markers :1, :2,
# and :3 represents the three towers; in this case the current set-up is
# ":ab : :x :". The numbers after a, b and x in these fields indicate
# that the next time it gets a chance, it will move a to tower 2, move b
# to tower 3, and move x to tower 2. The string after :0 just keeps track
# of the alphabetical order of the names of the rings. The b at the
# beginning means that it is now dealing with ring b (either about to move
# it, or re-evaluating where it should next be moved to).
#
# Although this version is "limited" to 26 rings because of the size of the
# alphabet, one could write a script using the same idea in which the rings
# were represented by arbitrary [strings][within][brackets], and in place of
# the built-in line of the script giving the order of the letters of the
# alphabet, it would accept from the user a line giving the ordering to be
# assumed, e.g. [ucbvax][decvax][hplabs][foo][bar].
#
# George Bergman
# Math, UC Berkeley 94720 USA
# cleaning, diagnostics
s/ *//g
/^$/d
/[^a-z:]/{a\
Illegal characters: use only a-z and ":". Try again.
d
}
/^:[a-z]*:[a-z]*:[a-z]*:$/!{a\
Incorrect format: use\
\ : string1 : string2 : string3 :<CR><CR>\
Try again.
d
}
/\([a-z]\).*\1/{a\
Repeated letters not allowed. Try again.
d
}
# initial formatting
h
s/[a-z]/ /g
G
s/^:\( *\):\( *\):\( *\):\n:\([a-z]*\):\([a-z]*\):\([a-z]*\):$/:1\4\2\3:2\5\1\3:3\6\1\2:0/
s/[a-z]/&2/g
s/^/abcdefghijklmnopqrstuvwxyz/
:a
s/^\(.\).*\1.*/&\1/
s/.//
/^[^:]/ba
s/\([^0]*\)\(:0.*\)/\2\1:/
s/^[^0]*0\(.\)/\1&/
:b
# outputting current state without markers
h
s/.*:1/:/
s/[123]//gp
g
:c
# establishing destinations
/^\(.\).*\1:1/td
/^\(.\).*:1[^:]*\11/s/^\(.\)\(.*\1\([a-z]\).*\)\3./\3\2\31/
/^\(.\).*:1[^:]*\12/s/^\(.\)\(.*\1\([a-z]\).*\)\3./\3\2\33/
/^\(.\).*:1[^:]*\13/s/^\(.\)\(.*\1\([a-z]\).*\)\3./\3\2\32/
/^\(.\).*:2[^:]*\11/s/^\(.\)\(.*\1\([a-z]\).*\)\3./\3\2\33/
/^\(.\).*:2[^:]*\12/s/^\(.\)\(.*\1\([a-z]\).*\)\3./\3\2\32/
/^\(.\).*:2[^:]*\13/s/^\(.\)\(.*\1\([a-z]\).*\)\3./\3\2\31/
/^\(.\).*:3[^:]*\11/s/^\(.\)\(.*\1\([a-z]\).*\)\3./\3\2\32/
/^\(.\).*:3[^:]*\12/s/^\(.\)\(.*\1\([a-z]\).*\)\3./\3\2\31/
/^\(.\).*:3[^:]*\13/s/^\(.\)\(.*\1\([a-z]\).*\)\3./\3\2\33/
bc
# iterate back to find smallest out-of-place ring
:d
s/^\(.\)\(:0[^:]*\([^:]\)\1.*:\([123]\)[^:]*\1\)\4/\3\2\4/
td
# move said ring (right, resp. left)
s/^\(.\)\(.*\)\1\([23]\)\(.*:\3[^ ]*\) /\1\2 \4\1\3/
s/^\(.\)\(.*:\([12]\)[^ ]*\) \(.*\)\1\3/\1\2\1\3\4 /
tb
s/.*/Done! Try another, or end with ^D./p
d

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#
# @(#)math.sed 8.1 (Berkeley) 6/6/93
#
# Addition and multiplication in sed.
# ++ for a limited time only do (expr) too!!!
#
# Kevin S Braunsdorf, PUCC UNIX Group, ksb@cc.purdue.edu.
#
# Ex:
# echo "4+7*3" | sed -f %f
# make sure the expression is well formed
s/[ ]//g
/[+*\/-]$/{
a\
poorly formed expression, operator on the end
q
}
/^[+*\/]/{
a\
poorly formed expression, leading operator
q
}
# fill hold space with done token
x
s/^.*/done/
x
# main loop, process operators (*, + and () )
: loop
/^\+/{
s///
b loop
}
/^\(.*\)(\([^)]*\))\(.*\)$/{
H
s//\2/
x
s/^\(.*\)\n\(.*\)(\([^()]*\))\(.*\)$/()\2@\4@\1/
x
b loop
}
/^[0-9]*\*/b mul
/^\([0-9]*\)\+\([0-9+*]*\*[0-9]*\)$/{
s//\2+\1/
b loop
}
/^[0-9]*\+/{
s/$/=/
b add
}
x
/^done$/{
x
p
d
}
/^()/{
s///
x
G
s/\(.*\)\n\([^@]*\)@\([^@]*\)@\(.*\)/\2\1\3/
x
s/[^@]*@[^@]*@\(.*\)/\1/
x
b loop
}
i\
help, stack problem
p
x
p
q
# turn mul into add until 1*x -> x
: mul
/^0*1\*/{
s///
b loop
}
/^\([0-9]*\)0\*/{
s/^\([0-9]*\)0\*\([0-9]*\)/\1*\20/
b mul
}
s/^\([0-9]*\)1\*/\10*/
s/^\([0-9]*\)2\*/\11*/
s/^\([0-9]*\)3\*/\12*/
s/^\([0-9]*\)4\*/\13*/
s/^\([0-9]*\)5\*/\14*/
s/^\([0-9]*\)6\*/\15*/
s/^\([0-9]*\)7\*/\16*/
s/^\([0-9]*\)8\*/\17*/
s/^\([0-9]*\)9\*/\18*/
s/\*\([0-9*]*\)/*\1+\1/
b mul
# get rid of a plus term until 0+x -> x
: add
/^\+\([0-9+*]*\)=/{
s//\1/
b loop
}
/^\([0-9*]*\)\+=/{
s//\1/
b loop
}
/^\([0-9]*\)\+\([0-9*+]*\)\+=/{
s//\2+\1/
b loop
}
/^\([0-9]*\)0\+\([0-9]*\)\([0-9]\)=/{
s//\1+\2=\3/
b add
}
/^\([0-9]*\)\([0-9]\)\+\([0-9]*\)0=/{
s//\1+\3=\2/
b add
}
/^\([0-9]*\)0\+\([0-9*+]*\)\+\([0-9]*\)\([0-9]\)=/{
s//\1+\2+\3=\4/
b add
}
/^\([0-9]*\)\([0-9]\)\+\([0-9*+]*\)\+\([0-9]*\)0=/{
s//\1+\3+\4=\2/
b add
}
s/^\([0-9]*\)1\+/\10+/
s/^\([0-9]*\)2\+/\11+/
s/^\([0-9]*\)3\+/\12+/
s/^\([0-9]*\)4\+/\13+/
s/^\([0-9]*\)5\+/\14+/
s/^\([0-9]*\)6\+/\15+/
s/^\([0-9]*\)7\+/\16+/
s/^\([0-9]*\)8\+/\17+/
s/^\([0-9]*\)9\+/\18+/
s/9=\([0-9]*\)$/_=\1/
s/8=\([0-9]*\)$/9=\1/
s/7=\([0-9]*\)$/8=\1/
s/6=\([0-9]*\)$/7=\1/
s/5=\([0-9]*\)$/6=\1/
s/4=\([0-9]*\)$/5=\1/
s/3=\([0-9]*\)$/4=\1/
s/2=\([0-9]*\)$/3=\1/
s/1=\([0-9]*\)$/2=\1/
/_/{
s//_0/
: inc
s/9_/_0/
s/8_/9/
s/7_/8/
s/6_/7/
s/5_/6/
s/4_/5/
s/3_/4/
s/2_/3/
s/1_/2/
s/0_/1/
s/\+_/+1/
/_/b inc
}
b add

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#!/bin/sh -
#
# Copyright (c) 1992 Diomidis Spinellis.
# Copyright (c) 1992, 1993
# The Regents of the University of California. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. All advertising materials mentioning features or use of this software
# must display the following acknowledgement:
# This product includes software developed by the University of
# California, Berkeley and its contributors.
# 4. Neither the name of the University nor the names of its contributors
# may be used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# @(#)sed.test 8.1 (Berkeley) 6/6/93
#
# sed Regression Tests
#
# The following files are created:
# lines[1-4], script1, script2
# Two directories *.out contain the test results
main()
{
BASE=/usr/old/bin/sed
BASELOG=sed.out
TEST=../obj/sed
TESTLOG=nsed.out
DICT=/usr/share/dict/words
test_error | more
awk 'END { for (i = 1; i < 15; i++) print "l1_" i}' </dev/null >lines1
awk 'END { for (i = 1; i < 10; i++) print "l2_" i}' </dev/null >lines2
exec 4>&1 5>&2
# Set these flags to get messages about known problems
BSD=1
GNU=0
SUN=0
tests $BASE $BASELOG
BSD=0
GNU=0
SUN=0
tests $TEST $TESTLOG
exec 1>&4 2>&5
diff -c $BASELOG $TESTLOG | more
}
tests()
{
SED=$1
DIR=$2
rm -rf $DIR
mkdir $DIR
MARK=100
test_args
test_addr
echo Testing commands
test_group
test_acid
test_branch
test_pattern
test_print
test_subst
}
mark()
{
MARK=`expr $MARK + 1`
exec 1>&4 2>&5
exec >"$DIR/${MARK}_$1"
echo "Test $1:$MARK"
# Uncomment this line to match tests with sed error messages
echo "Test $1:$MARK" >&5
}
test_args()
{
mark '1.1'
echo Testing argument parsing
echo First type
if [ $SUN -eq 1 ] ; then
echo SunOS sed prints only with -n
else
$SED 's/^/e1_/p' lines1
fi
mark '1.2' ; $SED -n 's/^/e1_/p' lines1
mark '1.3'
if [ $SUN -eq 1 ] ; then
echo SunOS sed prints only with -n
else
$SED 's/^/e1_/p' <lines1
fi
mark '1.4' ; $SED -n 's/^/e1_/p' <lines1
echo Second type
mark '1.4.1'
if [ $SUN -eq 1 ] ; then
echo SunOS sed fails this
fi
$SED -e '' <lines1
echo 's/^/s1_/p' >script1
echo 's/^/s2_/p' >script2
mark '1.5'
if [ $SUN -eq 1 ] ; then
echo SunOS sed prints only with -n
else
$SED -f script1 lines1
fi
mark '1.6'
if [ $SUN -eq 1 ] ; then
echo SunOS sed prints only with -n
else
$SED -f script1 <lines1
fi
mark '1.7'
if [ $SUN -eq 1 ] ; then
echo SunOS sed prints only with -n
else
$SED -e 's/^/e1_/p' lines1
fi
mark '1.8'
if [ $SUN -eq 1 ] ; then
echo SunOS sed prints only with -n
else
$SED -e 's/^/e1_/p' <lines1
fi
mark '1.9' ; $SED -n -f script1 lines1
mark '1.10' ; $SED -n -f script1 <lines1
mark '1.11' ; $SED -n -e 's/^/e1_/p' lines1
mark '1.12'
if [ $SUN -eq 1 ] ; then
echo SunOS sed prints only with -n
else
$SED -n -e 's/^/e1_/p' <lines1
fi
mark '1.13'
if [ $SUN -eq 1 ] ; then
echo SunOS sed prints only with -n
else
$SED -e 's/^/e1_/p' -e 's/^/e2_/p' lines1
fi
mark '1.14'
if [ $SUN -eq 1 ] ; then
echo SunOS sed prints only with -n
else
$SED -f script1 -f script2 lines1
fi
mark '1.15'
if [ $GNU -eq 1 -o $SUN -eq 1 ] ; then
echo GNU and SunOS sed fail this following older POSIX draft
else
$SED -e 's/^/e1_/p' -f script1 lines1
fi
mark '1.16'
if [ $SUN -eq 1 ] ; then
echo SunOS sed prints only with -n
else
$SED -e 's/^/e1_/p' lines1 lines1
fi
# POSIX D11.2:11251
mark '1.17' ; $SED p <lines1 lines1
cat >script1 <<EOF
#n
# A comment
p
EOF
mark '1.18' ; $SED -f script1 <lines1 lines1
}
test_addr()
{
echo Testing address ranges
mark '2.1' ; $SED -n -e '4p' lines1
mark '2.2' ; $SED -n -e '20p' lines1 lines2
mark '2.3' ; $SED -n -e '$p' lines1
mark '2.4' ; $SED -n -e '$p' lines1 lines2
mark '2.5' ; $SED -n -e '$a\
hello' /dev/null
mark '2.6' ; $SED -n -e '$p' lines1 /dev/null lines2
# Should not print anything
mark '2.7' ; $SED -n -e '20p' lines1
mark '2.8' ; $SED -n -e '0p' lines1
mark '2.9' ; $SED -n '/l1_7/p' lines1
mark '2.10' ; $SED -n ' /l1_7/ p' lines1
mark '2.11'
if [ $BSD -eq 1 ] ; then
echo BSD sed fails this test
fi
if [ $GNU -eq 1 ] ; then
echo GNU sed fails this
fi
$SED -n '\_l1\_7_p' lines1
mark '2.12' ; $SED -n '1,4p' lines1
mark '2.13' ; $SED -n '1,$p' lines1 lines2
mark '2.14' ; $SED -n '1,/l2_9/p' lines1 lines2
mark '2.15' ; $SED -n '/4/,$p' lines1 lines2
mark '2.16' ; $SED -n '/4/,20p' lines1 lines2
mark '2.17' ; $SED -n '/4/,/10/p' lines1 lines2
mark '2.18' ; $SED -n '/l2_3/,/l1_8/p' lines1 lines2
mark '2.19'
if [ $GNU -eq 1 ] ; then
echo GNU sed fails this
fi
$SED -n '12,3p' lines1 lines2
mark '2.20'
if [ $GNU -eq 1 ] ; then
echo GNU sed fails this
fi
$SED -n '/l1_7/,3p' lines1 lines2
}
test_group()
{
echo Brace and other grouping
mark '3.1' ; $SED -e '
4,12 {
s/^/^/
s/$/$/
s/_/T/
}' lines1
mark '3.2' ; $SED -e '
4,12 {
s/^/^/
/6/,/10/ {
s/$/$/
/8/ s/_/T/
}
}' lines1
mark '3.3' ; $SED -e '
4,12 !{
s/^/^/
/6/,/10/ !{
s/$/$/
/8/ !s/_/T/
}
}' lines1
mark '3.4' ; $SED -e '4,12!s/^/^/' lines1
}
test_acid()
{
echo Testing a c d and i commands
mark '4.1' ; $SED -n -e '
s/^/before_i/p
20i\
inserted
s/^/after_i/p
' lines1 lines2
mark '4.2' ; $SED -n -e '
5,12s/^/5-12/
s/^/before_a/p
/5-12/a\
appended
s/^/after_a/p
' lines1 lines2
mark '4.3'
if [ $GNU -eq 1 ] ; then
echo GNU sed fails this
fi
$SED -n -e '
s/^/^/p
/l1_/a\
appended
8,10N
s/$/$/p
' lines1 lines2
mark '4.4' ; $SED -n -e '
c\
hello
' lines1
mark '4.5' ; $SED -n -e '
8c\
hello
' lines1
mark '4.6' ; $SED -n -e '
3,14c\
hello
' lines1
# SunOS and GNU sed behave differently. We follow POSIX
# mark '4.7' ; $SED -n -e '
#8,3c\
#hello
#' lines1
mark '4.8' ; $SED d <lines1
}
test_branch()
{
echo Testing labels and branching
mark '5.1' ; $SED -n -e '
b label4
:label3
s/^/label3_/p
b end
:label4
2,12b label1
b label2
:label1
s/^/label1_/p
b
:label2
s/^/label2_/p
b label3
:end
' lines1
mark '5.2'
if [ $BSD -eq 1 ] ; then
echo BSD sed fails this test
fi
$SED -n -e '
s/l1_/l2_/
t ok
b
:ok
s/^/tested /p
' lines1 lines2
# SunOS sed behaves differently here. Clarification needed.
# mark '5.3' ; $SED -n -e '
#5,8b inside
#1,5 {
# s/^/^/p
# :inside
# s/$/$/p
#}
#' lines1
# Check that t clears the substitution done flag
mark '5.4' ; $SED -n -e '
1,8s/^/^/
t l1
:l1
t l2
s/$/$/p
b
:l2
s/^/ERROR/
' lines1
# Check that reading a line clears the substitution done flag
mark '5.5'
if [ $BSD -eq 1 ] ; then
echo BSD sed fails this test
fi
$SED -n -e '
t l2
1,8s/^/^/p
2,7N
b
:l2
s/^/ERROR/p
' lines1
mark '5.6' ; $SED 5q lines1
mark '5.7' ; $SED -e '
5i\
hello
5q' lines1
# Branch across block boundary
mark '5.8' ; $SED -e '
{
:b
}
s/l/m/
tb' lines1
}
test_pattern()
{
echo Pattern space commands
# Check that the pattern space is deleted
mark '6.1' ; $SED -n -e '
c\
changed
p
' lines1
mark '6.2' ; $SED -n -e '
4d
p
' lines1
# SunOS sed refused to print here
# mark '6.3' ; $SED -e '
#N
#N
#N
#D
#P
#4p
#' lines1
mark '6.4' ; $SED -e '
2h
3H
4g
5G
6x
6p
6x
6p
' lines1
mark '6.5' ; $SED -e '4n' lines1
mark '6.6' ; $SED -n -e '4n' lines1
}
test_print()
{
echo Testing print and file routines
awk 'END {for (i = 1; i < 256; i++) printf("%c", i);print "\n"}' \
</dev/null >lines3
# GNU and SunOS sed behave differently here
mark '7.1'
if [ $BSD -eq 1 ] ; then
echo 'BSD sed drops core on this one; TEST SKIPPED'
else
$SED -n l lines3
fi
mark '7.2' ; $SED -e '/l2_/=' lines1 lines2
rm -f lines4
mark '7.3' ; $SED -e '3,12w lines4' lines1
echo w results
cat lines4
mark '7.4' ; $SED -e '4r lines2' lines1
mark '7.5' ; $SED -e '5r /dev/dds' lines1
mark '7.6' ; $SED -e '6r /dev/null' lines1
mark '7.7'
if [ $BSD -eq 1 -o $GNU -eq 1 -o $SUN -eq 1 ] ; then
echo BSD, GNU and SunOS cannot pass this one
else
sed '200q' $DICT | sed 's$.*$s/^/&/w tmpdir/&$' >script1
rm -rf tmpdir
mkdir tmpdir
$SED -f script1 lines1
cat tmpdir/*
rm -rf tmpdir
fi
mark '7.8'
if [ $BSD -eq 1 ] ; then
echo BSD sed cannot pass 7.7
else
echo line1 > lines3
echo "" >> lines3
$SED -n -e '$p' lines3 /dev/null
fi
}
test_subst()
{
echo Testing substitution commands
mark '8.1' ; $SED -e 's/./X/g' lines1
mark '8.2' ; $SED -e 's,.,X,g' lines1
# GNU and SunOS sed thinks we are escaping . as wildcard, not as separator
# mark '8.3' ; $SED -e 's.\..X.g' lines1
# POSIX does not say that this should work
# mark '8.4' ; $SED -e 's/[/]/Q/' lines1
mark '8.4' ; $SED -e 's/[\/]/Q/' lines1
mark '8.5' ; $SED -e 's_\__X_' lines1
mark '8.6' ; $SED -e 's/./(&)/g' lines1
mark '8.7' ; $SED -e 's/./(\&)/g' lines1
mark '8.8' ; $SED -e 's/\(.\)\(.\)\(.\)/x\3x\2x\1/g' lines1
mark '8.9' ; $SED -e 's/_/u0\
u1\
u2/g' lines1
mark '8.10'
if [ $BSD -eq 1 -o $GNU -eq 1 ] ; then
echo 'BSD/GNU sed do not understand digit flags on s commands'
fi
$SED -e 's/./X/4' lines1
rm -f lines4
mark '8.11' ; $SED -e 's/1/X/w lines4' lines1
echo s wfile results
cat lines4
mark '8.12' ; $SED -e 's/[123]/X/g' lines1
mark '8.13' ; $SED -e 'y/0123456789/9876543210/' lines1
mark '8.14' ;
if [ $BSD -eq 1 -o $GNU -eq 1 -o $SUN -eq 1 ] ; then
echo BSD/GNU/SUN sed fail this test
else
$SED -e 'y10\123456789198765432\101' lines1
fi
mark '8.15' ; $SED -e '1N;2y/\n/X/' lines1
mark '8.16'
if [ $BSD -eq 1 ] ; then
echo 'BSD sed does not handle branch defined REs'
else
echo 'eeefff' | $SED -e 'p' -e 's/e/X/p' -e ':x' \
-e 's//Y/p' -e '/f/bx'
fi
}
test_error()
{
exec 0>&3 4>&1 5>&2
exec 0</dev/null
exec 2>&1
set -x
$TEST -x && exit 1
$TEST -f && exit 1
$TEST -e && exit 1
$TEST -f /dev/dds && exit 1
$TEST p /dev/dds && exit 1
$TEST -f /bin/sh && exit 1
$TEST '{' && exit 1
$TEST '{' && exit 1
$TEST '/hello/' && exit 1
$TEST '1,/hello/' && exit 1
$TEST -e '-5p' && exit 1
$TEST '/jj' && exit 1
$TEST 'a hello' && exit 1
$TEST 'a \ hello' && exit 1
$TEST 'b foo' && exit 1
$TEST 'd hello' && exit 1
$TEST 's/aa' && exit 1
$TEST 's/aa/' && exit 1
$TEST 's/a/b' && exit 1
$TEST 's/a/b/c/d' && exit 1
$TEST 's/a/b/ 1 2' && exit 1
$TEST 's/a/b/ 1 g' && exit 1
$TEST 's/a/b/w' && exit 1
$TEST 'y/aa' && exit 1
$TEST 'y/aa/b/' && exit 1
$TEST 'y/aa/' && exit 1
$TEST 'y/a/b' && exit 1
$TEST 'y/a/b/c/d' && exit 1
$TEST '!' && exit 1
$TEST supercalifrangolisticexprialidociussupercalifrangolisticexcius
set +x
exec 0>&3 1>&4 2>&5
}
main