1 files changed, 130 insertions, 0 deletions
diff --git a/src/grep/tests/filename-lineno.pl b/src/grep/tests/filename-lineno.pl
new file mode 100755
index 0000000..1e84b45
--- /dev/null
+++ b/src/grep/tests/filename-lineno.pl
@@ -0,0 +1,130 @@
+#!/usr/bin/perl
+# Prior to 2.26, an invalid regexp in a -f-specified file would elicit
+# a diagnostic like "Unmatched [ or [^", with no indication of the
+# file or line number from which the offending regular expression came.
+# With 2.26, now, each such diagnostic has a "FILENAME:LINENO: " prefix.
+
+# Copyright (C) 2016-2021 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 $program_name = $0) =~ s|.*/||;
+
+my $prog = 'grep';
+my $full_prog_name = `$prog --no-such-option 2>&1`;
+$full_prog_name =~ s/:.*//s;
+$prog = $full_prog_name if $full_prog_name;
+
+# Turn off localization of executable's output.
+@ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;
+
+# There are at least two variants of one diagnostic:
+#   - Unmatched [, [^, [:, [., or [=
+#   - Unmatched [ or [^
+# Transform each to this: "Unmatched [..."
+my $err_subst = {ERR_SUBST => 's/(: Unmatched \[).*/$1.../'};
+
+my $no_pcre = "$prog: Perl matching not supported in a --disable-perl-regexp build\n";
+
+my @Tests =
+  (
+   # Show that grep now includes filename:lineno in the diagnostic:
+   ['invalid-re', '-f g', {AUX=>{g=>"1\n2\n3\n4[[\n"}}, {EXIT=>2},
+    $err_subst,
+    {ERR => "$prog: g:4: Unmatched [...\n"},
+   ],
+
+   # Show that with two or more errors, grep now prints all diagnostics:
+   ['invalid-re-2-files', '-f g -f h', {EXIT=>2},
+    {AUX=>{g=>"1\n2[[\n3\n4[[\n"}},
+    {AUX=>{h=>"5\n6\n7[[\n"}},
+    $err_subst,
+    {ERR => "$prog: g:2: Unmatched [...\n"
+         . "$prog: g:4: Unmatched [...\n"
+         . "$prog: h:3: Unmatched [...\n"
+    },
+   ],
+
+   # Like the above, but on the other lines.
+   ['invalid-re-2-files2', '-f g -f h', {EXIT=>2},
+    {AUX=>{g=>"1[[\n2\n3[[\n4\n"}},
+    {AUX=>{h=>"5[[\n6[[\n7\n"}},
+    $err_subst,
+    {ERR => "$prog: g:1: Unmatched [...\n"
+         . "$prog: g:3: Unmatched [...\n"
+         . "$prog: h:1: Unmatched [...\n"
+         . "$prog: h:2: Unmatched [...\n"
+    },
+   ],
+
+   # Make sure the line numbers are right when some regexps are duplicates.
+   ['invalid-re-line-numbers', '-f g -f h', {EXIT=>2},
+    {AUX=>{g=>"1[[\n\n3[[\n\n5[[\n"}},
+    {AUX=>{h=>"1[[\n\n\n4[[\n\n6[[\n"}},
+    $err_subst,
+    {ERR => "$prog: g:1: Unmatched [...\n"
+         . "$prog: g:3: Unmatched [...\n"
+         . "$prog: g:5: Unmatched [...\n"
+         . "$prog: h:4: Unmatched [...\n"
+         . "$prog: h:6: Unmatched [...\n"
+    },
+   ],
+
+   # Show that with two '-e'-specified erroneous regexps,
+   # there is no file name or line number.
+   ['invalid-re-2e', '-e "1[[" -e "2[["', {EXIT=>2},
+    $err_subst,
+    {ERR => "$prog: Unmatched [...\n" x 2},
+   ],
+
+   # Test unmatched ) as well.  It is OK with -E and an error with -G and -P.
+   ['invalid-re-E-paren', '-E ")"', {IN=>''}, {EXIT=>1}],
+   ['invalid-re-E-star-paren', '-E ".*)"', {IN=>''}, {EXIT=>1}],
+   ['invalid-re-G-paren', '-G "\\)"', {EXIT=>2},
+    {ERR => "$prog: Unmatched ) or \\)\n"},
+   ],
+   ['invalid-re-G-star-paren', '-G "a.*\\)"', {EXIT=>2},
+    {ERR => "$prog: Unmatched ) or \\)\n"},
+   ],
+   ['invalid-re-P-paren', '-P ")"', {EXIT=>2},
+    {ERR => $ENV{PCRE_WORKS} == 1
+       ? "$prog: unmatched parentheses\n"
+       : $no_pcre
+    },
+   ],
+   ['invalid-re-P-star-paren', '-P "a.*)"', {EXIT=>2},
+    {ERR => $ENV{PCRE_WORKS} == 1
+       ? "$prog: unmatched parentheses\n"
+       : $no_pcre
+    },
+   ],
+
+   # Prior to grep-3.6, the name of the offending file was not printed.
+   ['backtracking-with-file', '-P "((a+)*)+$"', {EXIT=>2},
+    {IN=>{f=>"a"x20 ."b"}},
+    {ERR => $ENV{PCRE_WORKS} == 1
+       ? "$prog: f: exceeded PCRE's backtracking limit\n"
+       : $no_pcre
+    },
+   ],
+
+  );
+
+my $save_temps = $ENV{DEBUG};
+my $verbose = $ENV{VERBOSE};
+
+my $fail = run_tests ($program_name, $prog, \@Tests, $save_temps, $verbose);
+exit $fail;