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-rw-r--r--libX11/nls/compose-check.pl156
1 files changed, 156 insertions, 0 deletions
diff --git a/libX11/nls/compose-check.pl b/libX11/nls/compose-check.pl
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+#! /usr/bin/perl
+#
+# Copyright 2009 Sun Microsystems, Inc. All rights reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice (including the next
+# paragraph) shall be included in all copies or substantial portions of the
+# Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+# DEALINGS IN THE SOFTWARE.
+#
+
+#
+# Check a compose file for duplicate/conflicting entries and other common errors
+#
+
+# Compose file grammar is defined in modules/im/ximcp/imLcPrs.c
+
+use strict;
+use warnings;
+
+my $error_count = 0;
+
+if (scalar(@ARGV) == 0) {
+ push @ARGV, "Compose";
+}
+
+foreach my $cf (@ARGV) {
+ $error_count += check_compose_file($cf);
+}
+
+exit($error_count);
+
+sub check_compose_file {
+ my ($filename) = @_;
+ my $errors = 0;
+
+ my %compose_table = ();
+ my $line = 0;
+ my $pre_file = ($filename =~ m{\.pre$}) ? 1 : 0;
+ my $in_c_comment = 0;
+
+ open my $COMPOSE, '<', $filename or die "Could not open $filename: $!";
+
+ COMPOSE_LINE:
+ while (my $cl = <$COMPOSE>) {
+ $line++;
+ chomp($cl);
+ my $original_line = $cl;
+
+ # Special handling for changes cpp makes to .pre files
+ if ($pre_file == 1) {
+ if ($in_c_comment) { # Look for end of multi-line C comment
+ if ($cl =~ m{\*/(.*)$}) {
+ $cl = $1;
+ $in_c_comment = 0;
+ } else {
+ next;
+ }
+ }
+ $cl =~ s{/\*.\**/}{}; # Remove single line C comments
+ if ($cl =~ m{^(.*)/\*}) { # Start of a multi-line C comment
+ $cl = $1;
+ $in_c_comment = 1;
+ }
+ next if $cl =~ m{^\s*XCOMM}; # Skip pre-processing comments
+ }
+
+ $cl =~ s{#.*$}{}; # Remove comments
+ next if $cl =~ m{^\s*$}; # Skip blank (or comment-only) lines
+ chomp($cl);
+
+ if ($cl =~ m{^(STATE\s+|END_STATE)}) { # Sun extension to compose file syntax
+ %compose_table = ();
+ }
+ elsif ($cl =~ m{^([^:]+)\s*:\s*(.+)$}) {
+ my ($seq, $action) = ($1, $2);
+ $seq =~ s{\s+$}{};
+
+ my @keys = grep { $_ !~ m/^\s*$/ } split /[\s\<\>]+/, $seq;
+
+ my $final_key = pop @keys;
+ my $keytable = \%compose_table;
+
+ foreach my $k (@keys) {
+ if ($k =~ m{^U([[:xdigit:]]+)$}) {
+ $k = 'U' . lc($1);
+ }
+ if (exists $keytable->{$k}) {
+ $keytable = $keytable->{$k};
+ if (ref($keytable) ne 'HASH') {
+ print
+ "Clash with existing sequence in $filename on line $line: $seq\n";
+ print_sequences([$line, $original_line]);
+ print_sequences($keytable);
+ $errors++;
+ next COMPOSE_LINE;
+ }
+ } else {
+ my $new_keytable = {};
+ $keytable->{$k} = $new_keytable;
+ $keytable = $new_keytable;
+ }
+ }
+
+ if (exists $keytable->{$final_key}) {
+ print "Clash with existing sequence in $filename on line $line: $seq\n";
+ print_sequences([$line, $original_line]);
+ print_sequences($keytable->{$final_key});
+ $errors++;
+ } else {
+ $keytable->{$final_key} = [$line, $original_line];
+ }
+ } elsif ($cl =~ m{^(STATE_TYPE:|\@StartDeadKeyMap|\@EndDeadKeyMap)}) {
+ # ignore
+ } elsif ($cl =~ m{^include "(.*)"}) {
+ my $incpath = $1;
+ if (($pre_file == 1) && ($incpath !~ m{^X11_LOCALEDATADIR/})) {
+ print "Include path starts with $incpath instead of X11_LOCALEDATADIR\n",
+ " -- may not find include files when installed in alternate paths\n\n";
+ }
+ } else {
+ print 'Unrecognized pattern in ', $filename, ' on line #', $line, ":\n ",
+ $cl, "\n";
+ }
+ }
+ close $COMPOSE;
+
+ return $errors;
+}
+
+sub print_sequences {
+ my ($entry_ref) = @_;
+
+ if (ref($entry_ref) eq 'HASH') {
+ foreach my $h (values %{$entry_ref}) {
+ print_sequences($h);
+ }
+ } else {
+ my ($line, $seq) = @{$entry_ref};
+
+ print " line #", $line, ": ", $seq, "\n";
+ }
+}