Adding upstream version 9.4.upstream/9.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 226 insertions, 0 deletions

diff --git a/tests/expr/expr-multibyte.pl b/tests/expr/expr-multibyte.pl
new file mode 100755
index 0000000..4d763d6
--- /dev/null
+++ b/tests/expr/expr-multibyte.pl
@@ -0,0 +1,226 @@
+#!/usr/bin/perl
+# Exercise expr with multibyte input
+
+# Copyright (C) 2017-2023 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+use strict;
+
+(my $ME = $0) =~ s|.*/||;
+
+my $limits = getlimits ();
+my $UINTMAX_OFLOW = $limits->{UINTMAX_OFLOW};
+
+(my $program_name = $0) =~ s|.*/||;
+my $prog = 'expr';
+
+my $locale = $ENV{LOCALE_FR_UTF8};
+! defined $locale || $locale eq 'none'
+  and CuSkip::skip "$ME: this test requires FR-UTF8 locale\n";
+
+
+=pod
+ἔκφρασις (ekphrasis) - "expression" in Ancient Greek.
+=cut
+my $expression = "\x{1F14}\x{3BA}\x{3C6}\x{3C1}\x{3B1}\x{3C3}\x{3B9}\x{3C2}";
+
+
+## NOTE about tests locales:
+## Tests starting with 'mb' will have {ENV=>"LC_ALL=$locale"}
+## added to them automatically - results are multibyte-aware.
+## Tests starting with 'sb' have the same input but will be
+## run under C locale and will be treated as single-bytes.
+## This enables interleaving C/UTF8 tests
+## (for easier comparison of expected results).
+
+my @Tests =
+  (
+   ### length expressions ###
+
+   # sanity check
+   ['mb-l1', 'length abcdef',   {OUT=>"6"}],
+   ['st-l1', 'length abcdef',   {OUT=>"6"}],
+
+   # A single multibyte character in the beginning of the string
+   # \xCE\xB1 is UTF-8 for "U+03B1 GREEK SMALL LETTER ALPHA"
+   ['mb-l2', "length \xCE\xB1bcdef",   {OUT=>"6"}],
+   ['st-l2', "length \xCE\xB1bcdef",   {OUT=>"7"}],
+
+   # A single multibyte character in the middle of the string
+   # \xCE\xB4 is UTF-8 for "U+03B4 GREEK SMALL LETTER DELTA"
+   ['mb-l3', "length abc\xCE\xB4ef",   {OUT=>"6"}],
+   ['st-l3', "length abc\xCE\xB4ef",   {OUT=>"7"}],
+
+   # A single multibyte character in the end of the string
+   ['mb-l4', "length fedcb\xCE\xB1",   {OUT=>"6"}],
+   ['st-l4', "length fedcb\xCE\xB1",   {OUT=>"7"}],
+
+   # A invalid multibyte sequence
+   ['mb-l5', "length \xB1aaa",   {OUT=>"4"}],
+   ['st-l5', "length \xB1aaa",   {OUT=>"4"}],
+
+   # An incomplete multibyte sequence at the end of the string
+   ['mb-l6', "length aaa\xCE",   {OUT=>"4"}],
+   ['st-l6', "length aaa\xCE",   {OUT=>"4"}],
+
+   # An incomplete multibyte sequence at the end of the string
+   ['mb-l7', "length $expression",   {OUT=>"8"}],
+   ['st-l7', "length $expression",   {OUT=>"17"}],
+
+
+
+   ### index expressions ###
+
+   # sanity check
+   ['mb-i1', 'index abcdef fb',   {OUT=>"2"}],
+   ['st-i1', 'index abcdef fb',   {OUT=>"2"}],
+
+   # Search for a single-octet
+   ['mb-i2', "index \xCE\xB1bc\xCE\xB4ef b",   {OUT=>"2"}],
+   ['st-i2', "index \xCE\xB1bc\xCE\xB4ef b",   {OUT=>"3"}],
+   ['mb-i3', "index \xCE\xB1bc\xCE\xB4ef f",   {OUT=>"6"}],
+   ['st-i3', "index \xCE\xB1bc\xCE\xB4ef f",   {OUT=>"8"}],
+
+   # Search for multibyte character.
+   # In the C locale, the search string is treated as two octets.
+   # the first of them (\xCE) matches the first octet of the input string.
+   ['mb-i4', "index \xCE\xB1bc\xCE\xB4ef \xCE\xB4",   {OUT=>"4"}],
+   ['st-i4', "index \xCE\xB1bc\xCE\xB4ef \xCE\xB4",   {OUT=>"1"}],
+
+   # Invalid multibyte sequence in the input string, treated as a single octet.
+   ['mb-i5', "index \xCEbc\xCE\xB4ef \xCE\xB4",   {OUT=>"4"}],
+   ['st-i5', "index \xCEbc\xCE\xB4ef \xCE\xB4",   {OUT=>"1"}],
+
+   # Invalid multibyte sequence in the search string, treated as a single octet.
+   # In multibyte locale, there should be no match, expr returns and prints
+   # zero, and terminates with exit-code 1 (as per POSIX).
+   ['mb-i6', "index \xCE\xB1bc\xCE\xB4ef \xB4",   {OUT=>"0"}, {EXIT=>1}],
+   ['st-i6', "index \xCE\xB1bc\xCE\xB4ef \xB4",   {OUT=>"6"}],
+
+   # Edge-case: invalid multibyte sequence BOTH in the input string
+   # and in the search string: expr should find a match.
+   ['mb-i7', "index \xCE\xB1bc\xB4ef \xB4",       {OUT=>"4"}],
+
+
+   ### substr expressions ###
+
+   # sanity check
+   ['mb-s1', 'substr abcdef 2 3',   {OUT=>"bcd"}],
+   ['st-s1', 'substr abcdef 2 3',   {OUT=>"bcd"}],
+
+   ['mb-s2', "substr \xCE\xB1bc\xCE\xB4ef 1 1",   {OUT=>"\xCE\xB1"}],
+   ['st-s2', "substr \xCE\xB1bc\xCE\xB4ef 1 1",   {OUT=>"\xCE"}],
+
+   ['mb-s3', "substr \xCE\xB1bc\xCE\xB4ef 3 2",   {OUT=>"c\xCE\xB4"}],
+   ['st-s3', "substr \xCE\xB1bc\xCE\xB4ef 3 2",   {OUT=>"bc"}],
+
+   ['mb-s4', "substr \xCE\xB1bc\xCE\xB4ef 4 1",   {OUT=>"\xCE\xB4"}],
+   ['st-s4', "substr \xCE\xB1bc\xCE\xB4ef 4 1",   {OUT=>"c"}],
+
+   ['mb-s5', "substr \xCE\xB1bc\xCE\xB4ef 4 2",   {OUT=>"\xCE\xB4e"}],
+   ['st-s5', "substr \xCE\xB1bc\xCE\xB4ef 4 2",   {OUT=>"c\xCE"}],
+
+   ['mb-s6', "substr \xCE\xB1bc\xCE\xB4ef 6 1",   {OUT=>"f"}],
+   ['st-s6', "substr \xCE\xB1bc\xCE\xB4ef 6 1",   {OUT=>"\xB4"}],
+
+   ['mb-s7', "substr \xCE\xB1bc\xCE\xB4ef 7 1",   {OUT=>""}, {EXIT=>1}],
+   ['st-s7', "substr \xCE\xB1bc\xCE\xB4ef 7 1",   {OUT=>"e"}],
+
+   # Invalid multibyte sequences
+   ['mb-s8', "substr \xCE\xB1bc\xB4ef 3 3",   {OUT=>"c\xB4e"}],
+   ['st-s8', "substr \xCE\xB1bc\xB4ef 3 3",   {OUT=>"bc\xB4"}],
+
+
+   ### match expressions ###
+
+   # sanity check
+   ['mb-m1', 'match abcdef ab',   {OUT=>"2"}],
+   ['st-m1', 'match abcdef ab',   {OUT=>"2"}],
+   ['mb-m2', 'match abcdef "\(ab\)"',   {OUT=>"ab"}],
+   ['st-m2', 'match abcdef "\(ab\)"',   {OUT=>"ab"}],
+
+   # The regex engine should match the '.' to the first multibyte character.
+   ['mb-m3', "match \xCE\xB1bc\xCE\xB4ef .bc", {OUT=>"3"}],
+   ['st-m3', "match \xCE\xB1bc\xCE\xB4ef .bc", {OUT=>"0"}, {EXIT=>1}],
+
+   # The opposite of the previous test: two dots should only match
+   # the two octets in single-byte locale.
+   ['mb-m4', "match \xCE\xB1bc\xCE\xB4ef ..bc", {OUT=>"0"}, {EXIT=>1}],
+   ['st-m4', "match \xCE\xB1bc\xCE\xB4ef ..bc", {OUT=>"4"}],
+
+   # Match with grouping - a single dot should return the two octets
+   ['mb-m5', "match \xCE\xB1bc\xCE\xB4ef '\\(.b\\)c'", {OUT=>"\xCE\xB1b"}],
+   ['st-m5', "match \xCE\xB1bc\xCE\xB4ef '\\(.b\\)c'", {OUT=>""}, {EXIT=>1}],
+
+   # Invalid multibyte sequences - regex should not match in multibyte locale
+   # (POSIX requirement)
+   ['mb-m6', "match \xCEbc\xCE\xB4ef '\\(.\\)'", {OUT=>""}, {EXIT=>1}],
+   ['st-m6', "match \xCEbc\xCE\xB4ef '\\(.\\)'", {OUT=>"\xCE"}],
+
+
+   # Character classes: in the multibyte case, the regex engine understands
+   # there is a single multibyte character in the brackets.
+   # In the single byte case, the regex engine sees two octets in the character
+   # class ('\xCE' and '\xB1') - and it matches the first one.
+   ['mb-m7', "match \xCE\xB1bc\xCE\xB4e '\\([\xCE\xB1]\\)'", {OUT=>"\xCE\xB1"}],
+   ['st-m7', "match \xCE\xB1bc\xCE\xB4e '\\([\xCE\xB1]\\)'", {OUT=>"\xCE"}],
+
+  );
+
+
+# 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 $e->{OUT};
+      }
+  }
+
+
+# Force multibyte locale in all tests.
+#
+# NOTE about the ERR_SUBST:
+# The error tests above (e1/e2/e3/e4) expect error messages in C locale
+# having single-quote character (ASCII 0x27).
+# In UTF-8 locale, the error messages will use:
+#  'LEFT SINGLE QUOTATION MARK'  (U+2018) (UTF8: 0xE2 0x80 0x98)
+#  'RIGHT SINGLE QUOTATION MARK' (U+2019) (UTF8: 0xE2 0x80 0x99)
+# So we replace them with ascii single-quote and the results will
+# match the expected error string.
+if ($locale ne 'C')
+  {
+    my @new;
+    foreach my $t (@Tests)
+      {
+        my ($tname) = @$t;
+        if ($tname =~ /^mb/)
+          {
+            push @$t, ({ENV => "LC_ALL=$locale"},
+                       {ERR_SUBST => "s/\xe2\x80[\x98\x99]/'/g"});
+          }
+      }
+  }
+
+
+my $save_temps = $ENV{DEBUG};
+my $verbose = $ENV{VERBOSE};
+
+my $fail = run_tests ($program_name, $prog, \@Tests, $save_temps, $verbose);
+exit $fail;