#!/bin/rc
echo T.misc: miscellaneous buglets now watched for >[1=2]

echo 'The big brown over the lazy doe
The big brown over the lazy dog
x
The big brown over the lazy dog' >foo
echo 'failed
succeeded
failed
succeeded' >foo1
$awk '{ if (match($0, /^The big brown over the lazy dog/) == 0) {
		printf("failed\n")
	} else {
		printf("succeeded\n")
	}
} ' foo >foo2
cmp -s foo1 foo2 || echo 'BAD: T.misc: ghosh RE bug' >[1=2]

echo '123
1234567890
12345678901' >foo
echo '12345678901' >foo1
$awk 'length($0) > 10' foo >foo2
cmp -s foo1 foo2 || echo 'BAD: T.misc: last number bug' >[1=2]

# check some \ sequences in strings (ascii)
echo HIJKL >foo1
echo foo | $awk '{ print "H\x49\x4a\x4BL" }' >foo2
cmp -s foo1 foo2 || echo 'BAD: T.misc: hex string cvt' >[1=2]

echo 012x45 >foo1
$awk 'BEGIN { print "0\061\62x\0645" }' >foo2
cmp -s foo1 foo2 || echo 'BAD: T.misc: oct string cvt' >[1=2]

# $i++ means ($i)++
echo 3 5 | $awk '{ i = 1; print $i++ ; print $1, i }' >foo1
echo '3
4 1' >foo2
cmp -s foo1 foo2 || echo 'BAD: T.misc: bad field increment' >[1=2]

# makes sure that fields are recomputed even if self-assignment
# take into account that subtracting from NF now rebuilds the record
echo 'a b c
s p q r
x y z' >foo
echo 'a
s p
x' >foo1
$awk '{ NF -= 2; $1 = $1; print }' <foo >foo2
diff foo1 foo2 || echo >[1=2] 'BAD: T.misc: bad field self-assignment' >[1=2]

echo '1
1' >foo1
$awk 'BEGIN {x = 1; print x; x = x; print x}' >foo2
diff foo1 foo2 || echo >[1=2] 'BAD: T.misc: bad self-assignment' >[1=2]

echo 573109312 | $awk '{print $1*4}' >foo1
echo 2292437248 >foo2
diff foo1 foo2 || echo >[1=2] 'BAD: T.misc: bad overflow' >[1=2]

# note that there are 8-bit characters in the echo
# some shells will probably screw this up.
echo '#
code € 1
code € 2' |
$awk '/^#/' >foo1
echo '#' >foo2
diff foo1 foo2 || echo >[1=2] 'BAD: T.misc: bad match of 8-bit char' >[1=2]

sed 1000q /lib/ucd/UnicodeData.txt >foo.txt

echo hello |
$awk 'BEGIN	{ FILENAME = "foo.txt" }
	{ print $0 }' >foo >[2=1]
if(grep suicide foo)
	echo >[1=2] 'BAD: T.misc: foo.txt dropped core' >[1=2]

echo hello |
$awk '  function foo(foo) {
                foo = 1
                foo()
        }
	{ foo(bar) }
' >foo >[2=1]
if(grep suicide foo)
	echo >[1=2] 'BAD: T.misc: function foo(foo) dropped core' >[1=2]

echo '2
10' |
$awk '{ x[NR] = $0 }	# test whether $0 is NUM as well as STR
END { if (x[1] > x[2]) print "BAD: T.misc: $0 is not NUM" >"/fd/2" }'

$awk 'BEGIN {
	npad = substr("alexander" "           ",1,15)
	print npad
	}' >foo
grep '\\' foo && echo >[1=2] 'BAD: T.misc: alexander fails' >[1=2]

# This should give an error about function arguments
$awk '
function foo(x) { print "x is" x }
BEGIN { foo(foo) }
' >[2]foo
grep 'can''t use function foo' foo >/dev/null || echo >[1=2] 'BAD: T.misc: fcn args' >[1=2]


# gawk defref test; should give error about undefined function
$awk 'BEGIN { foo() }' >[2]foo
grep 'calling undefined function foo' foo >/dev/null || echo >[1=2] 'BAD: T.misc: undefined function' >[1=2]


# gawk arrayparm test; should give error about function 
$awk '
BEGIN {
    foo[1]=1;
    foo[2]=2;
    bug1(foo);
}
function bug1(i) {
    for (i in foo) {
	bug2(i);
	delete foo[i];
	print i,1,bot[1];
    }
}
function bug2(arg) {
    bot[arg]=arg;
}
' >[2]foo
grep 'can.t assign to foo' foo >/dev/null || echo >[1=2] 'BAD: T.misc: foo bug' >[1=2]


# This should be a syntax error
$awk '
!x = y
' >[2]foo
grep 'syntax error' foo >/dev/null || echo >[1=2] 'BAD: T.misc: syntax error !x=y fails' >[1=2]

# This should print bbb
$awk '
BEGIN { up[1] = "a"
	for (i in up) gsub("a", "A", x)
	print x x "bbb"
	exit
      }
' >foo
grep bbb foo >/dev/null || echo >[1=2] 'BAD: T.misc: gsub failed' >[1=2]

echo yes |
$awk '
BEGIN {
	printf "push return" >"/dev/null"
	getline ans <"/dev/null"
} ' >foo >[2=1]
if(grep suicide foo)
	echo >[1=2] 'BAD: T.misc: getline ans dropped core' >[1=2]

$awk 'BEGIN { unireghf() }
function unireghf(hfeed) { hfeed[1] = 0 }' >foo >[2=1]
if(grep suicide foo)
	echo >[1=2] 'BAD: T.misc: unireghf dropped core' >[1=2]

$awk '
function f() { return 12345 }
BEGIN { printf "<%s>\n", f() }
' >foo
grep '<12345>' foo >/dev/null || echo 'BAD: T.misc: <12345> fails' >[1=2]

echo 'abc
def

ghi
jkl' >foo
$awk '
BEGIN {	RS = ""
	while (getline <"foo")
		print
}' >foo1
$awk 'END {print NR}' foo1 | grep 4 >/dev/null || echo 'BAD: T.misc: abcdef fails' >[1=2]

# The following should not produce a warning about changing a constant
# nor about a curdled tempcell list
$awk 'function f(x) { x = 2 }
BEGIN { f(1) }' >foo
grep '^' foo && echo 'BAD: test constant change fails' >[1=2]

# The following should not produce a warning about a curdled tempcell list
$awk 'function f(x) { x }
BEGIN { f(1) }' >foo
grep '^' foo && echo 'BAD: test tempcell list fails' >[1=2]

$awk 'BEGIN { print 9, a=10, 11; print a; exit }' >foo1
echo '9 10 11
10' >foo2
diff foo1 foo2 || echo 'BAD: T.misc: embedded expression' >[1=2]

echo 'abc defgh ijkl' | $awk '
  { $1 = ""; line = $0; print line; print $0; $0 = line; print $0 }' >foo1
echo ' defgh ijkl
 defgh ijkl
 defgh ijkl' >foo2
diff foo1 foo2 || echo 'BAD: T.misc: assignment to $0' >[1=2]

$awk '
function min(a, b)
{
	if (a < b)
		return a
	else
		return b
}
BEGIN { exit }
' >foo >[2=1]
if(grep suicide foo)
	echo >[1=2] 'BAD: T.misc: function min dropped core' >[1=2]

# The following should not give a syntax error message:
$awk '
function expand(chart) {
	getline chart < "CHAR.ticks"
}
' >foo
grep '^' foo >/dev/null && echo 'BAD: T.misc: expand error' >[1=2]

$awk 'BEGIN { print 1e40 }' >foo >[2=1]
if(grep suicide foo)
	echo >[1=2] 'BAD: T.misc: 1E40 dropped core' >[1=2]

# The following syntax error should not dump core:
$awk '
$NF==3	{first=1}
$NF==2 && first==0 && (abs($1-o1)>120||abs($2-o2)>120)	{print $0}
$NF==2	{o1=%1; o2=$2; first=0}
' >/dev/null >[2=1]
if(grep suicide foo)
	echo >[1=2] 'BAD: T.misc: first/abs dropped core' >[1=2]

# The following syntax error should not dump core:
$awk '{ n = split($1, address, !); print address[1] }' >[2]foo
grep 'illegal statement' foo >/dev/null || echo 'BAD: T.misc: split error' >[1=2]

# The following should cause a syntax error message
$awk 'BEGIN {"hello"}' >[2]foo
grep 'illegal statement' foo >/dev/null || echo 'BAD: T.misc: hello error' >[1=2]

# The following should give a syntax error message:
$awk '
function pile(c,     r) {
	r = ++pile[c]
}

{ pile($1) }
' >[2]foo
grep 'context is' foo >/dev/null || echo 'BAD: T.misc: pile error' >[1=2]

# This should complain about missing atan2 argument:
$awk 'BEGIN { atan2(1) }' >[2]foo
grep 'requires two arg' foo >/dev/null || echo 'BAD: T.misc: atan2 error' >[1=2]

# This should not core dump:
$awk 'BEGIN { f() }
function f(A) { delete A[1] }
' >/dev/null >[2=1]
if(grep suicide foo)
	echo >[1=2] 'BAD: T.misc: delete dropped core' >[1=2]

# nasty one:  should not be able to overwrite constants
$awk 'BEGIN { gsub(/ana/,"anda","banana")
		printf "the monkey ate a %s\n", "banana" }
' >/dev/null >[2]foo
grep 'syntax error' foo >/dev/null || echo 'BAD: T.misc: gsub banana error' >[1=2]

# nasty one:  should not be able to overwrite constants
$awk 'BEGIN { sub(/ana/,"anda","banana")
		printf "the monkey ate a %s\n", "banana" }
' >/dev/null >[2]foo
grep 'syntax error' foo >/dev/null || echo 'BAD: T.misc: sub banana error' >[1=2]

# line numbers used to double-count comments
$awk '#
#
#
/x
' >/dev/null >[2]foo
grep 'line [45]' foo >/dev/null || echo 'BAD: T.misc: lineno' >[1=2]

echo 'x
\y' >foo1
$awk 'BEGIN { print "x\f\r\b\v\a\\y" }' >foo2
cmp -s foo1 foo2 || echo 'BAD: T.misc: weird chars' >[1=2]

echo 0 >foo1
$awk '	BEGIN { exit }
	{ print }
	END { print NR }' >foo2
cmp -s foo1 foo2 || echo 'BAD: T.misc: BEGIN exit' >[1=2]

echo 1 >foo1
$awk '	{ exit }
	END { print NR }' foo.txt >foo2
cmp -s foo1 foo2 || echo 'BAD: T.misc: immmediate exit' >[1=2]

echo 1 >foo1
$awk '	{i = 1; while (i <= NF) {if (i == NF) exit; i++ } }
	END { print NR }' foo.txt >foo2
cmp -s foo1 foo2 || echo 'BAD: T.misc: immmediate exit 2' >[1=2]

echo 1 >foo1
$awk '	function f() {
		i = 1; while (i <= NF) {if (i == NF) return NR; i++ }
	}
	{ if (f() == 1) exit }
	END { print NR }' foo.txt >foo2
cmp -s foo1 foo2 || echo 'BAD: T.misc: while return' >[1=2]

echo 1 >foo1
$awk '	function f() {
		split("a b c", arr)
		for (i in arr) {if (i == 3) return NR; i++ }
	}
	{ if (f() == 1) exit }
	END { print NR }' foo.txt >foo2
cmp -s foo1 foo2 || echo 'BAD: T.misc: while return' >[1=2]

echo 1 >foo1
$awk '	{i = 1; do { if (i == NF) exit; i++ } while (i <= NF) }
	END { print NR }' foo.txt >foo2
cmp -s foo1 foo2 || echo 'BAD: T.misc: immmediate exit 3' >[1=2]

echo 1 >foo1
$awk '	function f() {
		i = 1; do { if (i == NF) return NR; i++ } while (i <= NF)
	}
	{ if (f() == 1) exit }
	END { print NR }' foo.txt >foo2
cmp -s foo1 foo2 || echo 'BAD: T.misc: do return' >[1=2]

echo 1 >foo1
$awk '	{i = 1; do { if (i == NF) break; i++ } while (i <= NF); exit }
	END { print NR }' foo.txt >foo2
cmp -s foo1 foo2 || echo 'BAD: T.misc: immmediate exit 4' >[1=2]

echo 1 >foo1
$awk '	{ n = split($0, x)
	  for (i in x) {
	 	if (i == 1)
			exit } }
	END { print NR }' foo.txt >foo2
cmp -s foo1 foo2 || echo 'BAD: T.misc: immmediate exit 5' >[1=2]

echo XXXXXXXX >foo1
$awk 'BEGIN { s = "ab\fc\rd\be"
	t = s; 	gsub("[" s "]", "X", t); print t }' >foo2
cmp -s foo1 foo2 || echo 'BAD: T.misc: weird escapes in char class' >[1=2]

$awk '{}' foo.txt glop/glop >foo >[2]foo2
grep 'can''t open.*glop' foo2 >/dev/null || echo 'BAD: T.misc: can''t open' >[1=2]

echo '


a
aa

b


c

' >foo
echo 3 >foo1
$awk 'BEGIN { RS = "" }; END { print NR }' foo >foo2
cmp -s foo1 foo2 || echo 'BAD: T.misc: RS botch' >[1=2]

# These should be syntax errors
$awk . >[2]foo
grep 'syntax error' foo >/dev/null || echo >[1=2] 'BAD: T.misc: syntax error . fails' >[1=2]

$awk .. >[2]foo
grep 'syntax error' foo >/dev/null || echo >[1=2] 'BAD: T.misc: syntax error .. fails' >[1=2]

$awk .E. >[2]foo
grep 'syntax error' foo >/dev/null || echo >[1=2] 'BAD: T.misc: syntax error .E. fails' >[1=2]

$awk .++. >[2]foo
grep 'syntax error' foo >/dev/null || echo >[1=2] 'BAD: T.misc: syntax error .++. fails' >[1=2]

# These should be syntax errors
$awk '"' >[2]foo
grep 'non-terminated' foo >/dev/null || echo >[1=2] 'BAD: T.misc: bare quote fails' >[1=2]

# %c of 0 is explicit null byte

echo '3' >foo1
$awk 'BEGIN {printf("%c%c\n", 0, 0) }' | wc | $awk '{print $3}' >foo2
cmp -s foo1 foo2 || echo 'BAD: T.misc: null byte' >[1=2]

# non-terminated RE

# FIXME
#$awk /xyz >foo >[2=1]
grep 'non-terminated' foo >/dev/null || echo >[1=2] 'BAD: T.misc: non-terminated RE' >[1=2]

# next several were infinite loops, found by brian tsang.
# this is his example:

# FIXME
#$awk 'BEGIN {
#    switch (substr("x",1,1)) {
#    case /ask.com/:
#	break
#    case "google":
#	break
#    }
#}' >foo >[2=1]
#grep 'illegal statement' foo >/dev/null || echo >[1=2] 'BAD: T.misc: looping syntax error 1' >[1=2]

# FIXME
#$awk 'BEGIN { s { c /./ } }' >foo >[2=1]
#grep 'illegal statement' foo >/dev/null || echo >[1=2] 'BAD: T.misc: looping syntax error 2' >[1=2]

# FIXME
#$awk 'BEGIN { s { c /../ } }' >foo >[2=1]
#grep 'illegal statement' foo >/dev/null || echo >[1=2] 'BAD: T.misc: looping syntax error 3' >[1=2]

echo '' >foo0
$awk 'END { print NF, $0 }' foo0 >foo1
awk '{ print NF, $0 }' foo0| tail -1 >foo2
cmp -s foo1 foo2 || echo 'BAD: T.misc: END must preserve $0 (3)' >[1=2]

# Check for nonzero exit status on I/O error.
#echo 'E 2' >foo1
#(trap '' PIPE; "$awk" 'BEGIN { print "hi"; }' >[2]/dev/null; echo "E $?" >foo2) | :
#cmp -s foo1 foo2 || echo 'BAD: T.misc: exit status on I/O error' >[1=2]

# Check for clobbering of the lexer's regular expression buffer.
# If the output is "a1" instead of "1b", /b/ clobbered /a/.
echo 1b >foo1
echo ab | $awk '{ sub(/a/, "b" ~ /b/); print }' >foo2
cmp -s foo1 foo2 || echo 'BAD: T.misc: lexer regex buffer clobbered' >[1=2]