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#! /usr/bin/perl
#
# Copyright (c) 2009, Oracle and/or its affiliates.
#
# 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) {
if ( -f 'Compose' ) {
push @ARGV, 'Compose';
} else {
push @ARGV, glob '*/Compose';
}
}
foreach my $cf (@ARGV) {
# print "Checking $cf\n";
$error_count += check_compose_file($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";
}
}
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