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|
#!/usr/local/bin/perl
#
# $Id: ucmlint,v 2.2 2008/03/12 09:51:11 dankogai Exp $
#
use strict;
our $VERSION = do { my @r = (q$Revision: 2.2 $ =~ /\d+/g); sprintf "%d."."%02d" x $#r, @r };
use Getopt::Std;
our %Opt;
getopts("Dehfv", \%Opt);
if ($Opt{e}){
eval{ require Encode; };
$@ and die "can't load Encode : $@";
}
$Opt{h} and help();
@ARGV or help();
sub help{
print <<"";
$0 -[Dehfv] [ucm files ...]
-D debug mode on
-e test with Encode module also (requires perl 5.7.3 or higher)
-h shows this message
-f forces roundtrip check even for |[123]
-v verbose mode
}
$| = 1;
my (%Hdr, %U2E, %E2U, %Fallback);
my $in_charmap = 0;
my $nerror = 0;
my $nwarning = 0;
sub nit($;$){
my ($msg, $level) = @_;
my $lstr;
if ($level == 2){
$lstr = 'notice';
}elsif ($level == 1){
$lstr = 'warning'; $nwarning++;
}else{
$lstr = 'error'; $nerror++;
}
print "$ARGV:$lstr in line $.: $msg\n";
}
for $ARGV (@ARGV){
open UCM, $ARGV or die "$ARGV:$!";
%Hdr = %U2E = %E2U = %Fallback = ();
$in_charmap = $nerror = $nwarning = 0;
$. = 0;
while(<UCM>){
chomp;
s/\s*#.*$//o; /^$/ and next;
if ($_ eq "CHARMAP"){
$in_charmap = 1;
for my $must (qw/code_set_name mb_cur_min mb_cur_max/){
exists $Hdr{$must} or nit "<$must> nonexistent";
}
$Hdr{mb_cur_min} > $Hdr{mb_cur_max}
and nit sprintf("mb_cur_min(%d) > mb_cur_max(%d)",
$Hdr{mb_cur_min},$Hdr{mb_cur_max});
$in_charmap = 1;
next;
}
unless ($in_charmap){
my($hkey, $hvalue) = /^<(\S+)>\s+[\"\']?([^\"\']+)/o or next;
$Opt{D} and warn "$hkey => $hvalue";
if ($hkey eq "code_set_name"){ # name check
exists $Hdr{code_set_name}
and nit "Duplicate <code_set_name>: $hkey";
}
if ($hkey eq "code_set_alias"){ # alias check
$hvalue eq $Hdr{code_set_name}
and nit qq(alias "$hvalue" is already in <code_set_name>);
}
$Hdr{$hkey} = $hvalue;
}else{
my $name = $Hdr{code_set_name};
my($unistr, $encstr, $fb) = /^(\S+)\s+(\S+)\s(\S+)/o or next;
$Opt{v} and nit $_, 2;
my $uni = uniparse($unistr);
my $enc = encparse($encstr);
$fb =~ /^\|([0123])$/ or nit "malformed fallback: $fb";
$fb = $1;
$Opt{f} and $fb = 0;
unless ($fb == 3){ # check uni -> enc
if (exists $U2E{$uni}){
nit "dupe encode map: U$uni => $U2E{$uni} and $enc", 1;
}else{
$U2E{$uni} = $enc;
$Fallback{$uni}{$enc} = 1 if $fb == 1;
if ($Opt{e}) {
my $e = hex2enc($enc);
my $u = hex2uni($uni);
my $eu = Encode::encode($name, $u);
$e eq $eu
or nit qq(encode('$name', $uni) != $enc);
}
}
}
unless ($fb == 1){ # check enc -> uni
if (exists $E2U{$enc}){
nit "dupe decode map: $enc => U$E2U{$enc} and U$uni", 1;
}else{
$E2U{$enc} = $uni;
$Fallback{$enc}{$uni} = 1 if $fb == 3;
if ($Opt{e}) {
my $e = hex2enc($enc);
my $u = hex2uni($uni);
$Opt{D} and warn "$uni, $enc";
my $de = Encode::decode($name, $e);
$de eq $u
or nit qq(decode('$name', $enc) != $uni);
}
}
}
# warn "$uni, $enc, $fb";
}
}
$in_charmap or nit "Where is CHARMAP?";
checkRT();
printf ("$ARGV: %s error%s found\n",
($nerror == 0 ? 'no' : $nerror),
($nerror > 1 ? 's' : ''));
}
exit;
sub hex2enc{
pack("C*", map {hex($_)} split(",", shift));
}
sub hex2uni{
join("", map { chr(hex($_)) } split(",", shift));
}
sub checkRT{
for my $uni (keys %E2U){
my $enc = $U2E{$uni} or next; # okay
$E2U{$U2E{$uni}} eq $uni or $Fallback{$uni}{$enc} or
nit "RT failure: U$uni => $enc =>U$E2U{$U2E{$uni}}";
}
for my $enc (keys %E2U){
my $uni = $E2U{$enc} or next; # okay
$U2E{$E2U{$enc}} eq $enc or $Fallback{$enc}{$uni} or
nit "RT failure: $enc => U$uni => $U2E{$E2U{$enc}}";
}
}
sub uniparse{
my $str = shift;
my @u;
push @u, $1 while($str =~ /\G<U(.*?)>/ig);
for my $u (@u){
$u =~ /^([0-9A-Za-z]+)$/o
or nit "malformed Unicode character: $u";
}
return join(',', @u);
}
sub encparse{
my $str = shift;
my @e;
for my $e (split /\\x/io, $str){
$e or next; # first \x
$e =~ /^([0-9A-Za-z]{1,2})$/io
or nit "Hex $e in $str is bogus";
push @e, $1;
}
return join(',', @e);
}
__END__
A UCM file looks like this.
#
# Comments
#
<code_set_name> "US-ascii" # Required
<code_set_alias> "ascii" # Optional
<mb_cur_min> 1 # Required; usually 1
<mb_cur_max> 1 # Max. # of bytes/char
<subchar> \x3F # Substitution char
#
CHARMAP
<U0000> \x00 |0 # <control>
<U0001> \x01 |0 # <control>
<U0002> \x02 |0 # <control>
....
<U007C> \x7C |0 # VERTICAL LINE
<U007D> \x7D |0 # RIGHT CURLY BRACKET
<U007E> \x7E |0 # TILDE
<U007F> \x7F |0 # <control>
END CHARMAP
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