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#!/bin/sh
# -*-perl-*-

: ${PERL=perl}
: ${srcdir=.}

$PERL -e 1 > /dev/null 2>&1 || {
  echo 1>&2 "$0: configure didn't find a usable version of Perl," \
    "so can't run this test"
  exit 77
}

d=$srcdir/..
exec $PERL -w -I$d -MCoreutils -- - << \EOF
require 5.003;
use strict;

(my $program_name = $0) =~ s|.*/||;

# Turn off localisation of executable's ouput.
@ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;

my $prog = $ENV{PROG} || die "$0: \$PROG not specified in environment\n";

my @Tests =
    (
     ['a', '5 + 6', {OUT => '11'}],
     ['b', '5 - 6', {OUT => '-1'}],
     ['c', '5 \* 6', {OUT => '30'}],
     ['d', '100 / 6', {OUT => '16'}],
     ['e', '100 % 6', {OUT => '4'}],
     ['f', '3 + -2', {OUT => '1'}],
     ['g', '-2 + -2', {OUT => '-4'}],

     ['paren1', '\( 100 % 6 \)', {OUT => '4'}],
     ['paren2', '\( 100 % 6 \) - 8', {OUT => '-4'}],
     ['paren3', '9 / \( 100 % 6 \) - 8', {OUT => '-6'}],
     ['paren4', '9 / \( \( 100 % 6 \) - 8 \)', {OUT => '-2'}],
     ['paren5', '9 + \( 100 % 6 \)', {OUT => '13'}],

     # Before 2.0.12, this would output `1'.
     ['0bang', '00 \< 0!', {OUT => '0'}, {EXIT => 1}],

     # In 5.1.3 and earlier, these would exit with status 0.
     ['00', '00', {OUT => '00'}, {EXIT => 1}],
     ['minus0', '-0', {OUT => '-0'}, {EXIT => 1}],

     # In 5.1.3 and earlier, these would report errors.
     ['andand', '0 \& 1 / 0', {OUT => '0'}, {EXIT => 1}],
     ['oror', '1 \| 1 / 0', {OUT => '1'}, {EXIT => 0}],

     # In 5.1.3 and earlier, this would output the empty string.
     ['orempty', '"" \| ""', {OUT => '0'}, {EXIT => 1}],

     # This evoked a syntax error diagnostic before 2.0.12.
     ['minus2', '-- 2 + 2', {OUT => '4'}],

     # This erroneously succeeded and output `3' before 2.0.12.
     ['fail-a', '3 + -', {ERR => "$prog: non-numeric argument\n"},
      {EXIT => 2}],

     # This erroneously succeeded before 5.3.1.
     ['bigcmp', '-- -2417851639229258349412352 \< 2417851639229258349412352',
      {OUT => '1'}, {EXIT => 0}],

     # In 5.94 and earlier, anchors incorrectly matched newlines.
     ['anchor', "'a\nb' : 'a\$'", {OUT => '0'}, {EXIT => 1}],

     # These tests are taken from grep/tests/bre.tests.
     ['bre1', '"abc" : "a\\(b\\)c"', {OUT => 'b'}],
     ['bre2', '"a(" : "a("', {OUT => '2'}],
     ['bre3', '_ : "a\\("',
      {ERR => "$prog: Unmatched ( or \\(\n"}, {EXIT => 2}],
     ['bre4', '_ : "a\\(b"',
      {ERR => "$prog: Unmatched ( or \\(\n"}, {EXIT => 2}],
     ['bre5', '"a(b" : "a(b"', {OUT => '3'}],
     ['bre6', '"a)" : "a)"', {OUT => '2'}],
     ['bre7', '_ : "a\\)"',
      {ERR => "$prog: Unmatched ) or \\)\n"}, {EXIT => 2}],
     ['bre8', '_ : "\\)"',
      {ERR => "$prog: Unmatched ) or \\)\n"}, {EXIT => 2}],
     ['bre9', '"ab" : "a\\(\\)b"', {OUT => ''}, {EXIT => 1}],
     ['bre10', '"a^b" : "a^b"', {OUT => '3'}],
     ['bre11', '"a\$b" : "a\$b"', {OUT => '3'}],
     ['bre12', '"" : "\\($\\)\\(^\\)"', {OUT => ''}, {EXIT => 1}],
     ['bre13', '"b" : "a*\\(^b\$\\)c*"', {OUT => 'b'}],
     ['bre14', '"X|" : "X\\(|\\)" : "(" "X|" : "X\\(|\\)" ")"', {OUT => '1'}],
     ['bre15', '"X*" : "X\\(*\\)" : "(" "X*" : "X\\(*\\)" ")"', {OUT => '1'}],
     ['bre16', '"abc" : "\\(\\)"', {OUT => ''}, {EXIT => 1}],
     ['bre17', '"{1}a" : "\\(\\{1\\}a\\)"', {OUT => '{1}a'}],
     ['bre18', '"X*" : "X\\(*\\)" : "^*"', {OUT => '1'}],
     ['bre19', '"{1}" : "^\\{1\\}"', {OUT => '3'}],
     ['bre20', '"{" : "{"', {OUT => '1'}],
     ['bre21', '"abbcbd" : "a\\(b*\\)c\\1d"', {OUT => ''}, {EXIT => 1}],
     ['bre22', '"abbcbbbd" : "a\\(b*\\)c\\1d"', {OUT => ''}, {EXIT => 1}],
     ['bre23', '"abc" : "\\(.\\)\\1"', {OUT => ''}, {EXIT => 1}],
     ['bre24', '"abbccd" : "a\\(\\([bc]\\)\\2\\)*d"', {OUT => 'cc'}],
     ['bre25', '"abbcbd" : "a\\(\\([bc]\\)\\2\\)*d"',
      {OUT => ''}, {EXIT => 1}],
     ['bre26', '"abbbd" : "a\\(\\(b\\)*\\2\\)*d"', {OUT => 'bbb'}],
     ['bre27', '"aabcd" : "\\(a\\)\\1bcd"', {OUT => 'a'}],
     ['bre28', '"aabcd" : "\\(a\\)\\1bc*d"', {OUT => 'a'}],
     ['bre29', '"aabd" : "\\(a\\)\\1bc*d"', {OUT => 'a'}],
     ['bre30', '"aabcccd" : "\\(a\\)\\1bc*d"', {OUT => 'a'}],
     ['bre31', '"aabcccd" : "\\(a\\)\\1bc*[ce]d"', {OUT => 'a'}],
     ['bre32', '"aabcccd" : "\\(a\\)\\1b\\(c\\)*cd\$"', {OUT => 'a'}],
     ['bre33', '"a*b" : "a\\(*\\)b"', {OUT => '*'}],
     ['bre34', '"ab" : "a\\(**\\)b"', {OUT => ''}, {EXIT => 1}],
     ['bre35', '"ab" : "a\\(***\\)b"', {OUT => ''}, {EXIT => 1}],
     ['bre36', '"*a" : "*a"', {OUT => '2'}],
     ['bre37', '"a" : "**a"', {OUT => '1'}],
     ['bre38', '"a" : "***a"', {OUT => '1'}],
     ['bre39', '"ab" : "a\\{1\\}b"', {OUT => '2'}],
     ['bre40', '"ab" : "a\\{1,\\}b"', {OUT => '2'}],
     ['bre41', '"aab" : "a\\{1,2\\}b"', {OUT => '3'}],
     ['bre42', '_ : "a\\{1"',
      {ERR => "$prog: Unmatched \\{\n"}, {EXIT => 2}],
     ['bre43', '_ : "a\\{1a"',
      {ERR => "$prog: Unmatched \\{\n"}, {EXIT => 2}],
     ['bre44', '_ : "a\\{1a\\}"',
      {ERR => "$prog: Invalid content of \\{\\}\n"}, {EXIT => 2}],
     ['bre45', '"a" : "a\\{,2\\}"', {OUT => '1'}],
     ['bre46', '"a" : "a\\{,\\}"', {OUT => '1'}],
     ['bre47', '_ : "a\\{1,x\\}"',
      {ERR => "$prog: Invalid content of \\{\\}\n"}, {EXIT => 2}],
     ['bre48', '_ : "a\\{1,x"',
      {ERR => "$prog: Unmatched \\{\n"}, {EXIT => 2}],
     ['bre49', '_ : "a\\{32768\\}"',
      {ERR => "$prog: Invalid content of \\{\\}\n"}, {EXIT => 2}],
     ['bre50', '_ : "a\\{1,0\\}"',
      {ERR => "$prog: Invalid content of \\{\\}\n"}, {EXIT => 2}],
     ['bre51', '"acabc" : ".*ab\\{0,0\\}c"', {OUT => '2'}],
     ['bre52', '"abcac" : "ab\\{0,1\\}c"', {OUT => '3'}],
     ['bre53', '"abbcac" : "ab\\{0,3\\}c"', {OUT => '4'}],
     ['bre54', '"abcac" : ".*ab\\{1,1\\}c"', {OUT => '3'}],
     ['bre55', '"abcac" : ".*ab\\{1,3\\}c"', {OUT => '3'}],
     ['bre56', '"abbcabc" : ".*ab\{2,2\}c"', {OUT => '4'}],
     ['bre57', '"abbcabc" : ".*ab\{2,4\}c"', {OUT => '4'}],
     ['bre58', '"aa" : "a\\{1\\}\\{1\\}"', {OUT => '1'}],
     ['bre59', '"aa" : "a*\\{1\\}"', {OUT => '2'}],
     ['bre60', '"aa" : "a\\{1\\}*"', {OUT => '2'}],
     ['bre61', '"acd" : "a\\(b\\)?c\\1d"', {OUT => ''}, {EXIT => 1}],
     ['bre62', '-- "-5" : "-\\{0,1\\}[0-9]*\$"', {OUT => '2'}],

     ['fail-b', '9 9', {ERR => "$prog: syntax error\n"},
      {EXIT => 2}],
     ['fail-c', {ERR => "$prog: missing operand\n"
		 . "Try `$prog --help' for more information.\n"},
      {EXIT => 2}],
    );

# Append a newline to end of each expected `OUT' string.
my $t;
foreach $t (@Tests)
  {
    my $arg1 = $t->[1];
    my $e;
    foreach $e (@$t)
      {
	$e->{OUT} .= "\n"
	  if ref $e eq 'HASH' and exists $e->{OUT};
      }
  }

my $save_temps = $ENV{SAVE_TEMPS};
my $verbose = $ENV{VERBOSE};

my $fail = run_tests ($program_name, $prog, \@Tests, $save_temps, $verbose);
exit $fail;
EOF