125 lines
3.0 KiB
Perl
125 lines
3.0 KiB
Perl
#!/usr/bin/perl -w
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# This file is part of LibParserUtils.
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# Licensed under the MIT License,
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# http://www.opensource.org/licenses/mit-license.php
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# Copyright 2010 Daniel Silverstone <dsilvers@netsurf-browser.org>
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# John-Mark Bell <jmb@netsurf-browser.org>
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use strict;
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use constant ALIAS_FILE => 'build/Aliases';
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use constant ALIAS_INC => 'src/charset/aliases.inc';
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use constant UNICODE_CHARSETS =>
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[
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qr'^ISO-10646-UCS-[24]$',
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qr'^UTF-16',
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qr'^UTF-8$',
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qr'^UTF-32'
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];
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open(INFILE, "<", ALIAS_FILE) || die "Unable to open " . ALIAS_FILE;
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my %charsets;
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while (my $line = <INFILE>) {
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last unless (defined $line);
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next if ($line =~ /^#/);
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chomp $line;
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next if ($line eq '');
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my @elements = split /\s+/, $line;
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my $canon = shift @elements;
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my $mibenum = shift @elements;
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$charsets{$canon} = [$mibenum, \@elements];
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}
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close(INFILE);
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my $unicodeexp = "";
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my $output = <<'EOH';
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/*
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* This file is part of LibParserUtils.
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* Licensed under the MIT License,
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* http://www.opensource.org/licenses/mit-license.php
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* Copyright 2010 The NetSurf Project.
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*
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* Note: This file is automatically generated by make-aliases.pl
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*
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* Do not edit file file, changes will be overwritten during build.
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*/
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static parserutils_charset_aliases_canon canonical_charset_names[] = {
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EOH
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my %aliases;
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my $canonnr = 0;
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foreach my $canon (sort keys %charsets) {
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my ($mibenum, $elements) = @{$charsets{$canon}};
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# Ordering must match struct in src/charset/aliases.h
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$output .= "\t{ " . $mibenum . ", " . length($canon) . ', "' . $canon . '" },' . "\n";
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my $isunicode = 0;
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foreach my $unirexp (@{UNICODE_CHARSETS()}) {
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$isunicode = 1 if ($canon =~ $unirexp);
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}
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if ($isunicode == 1) {
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$unicodeexp .= "((x) == $mibenum) || ";
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}
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$canon =~ y/A-Z/a-z/;
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$canon =~ s/[^a-z0-9]//g;
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$aliases{$canon} = $canonnr;
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foreach my $alias (@$elements) {
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$alias =~ y/A-Z/a-z/;
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$alias =~ s/[^a-z0-9]//g;
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$aliases{$alias} = $canonnr;
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}
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$canonnr += 1;
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}
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$output .= "};\n\nstatic const uint16_t charset_aliases_canon_count = ${canonnr};\n\n";
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$output .= <<'EOT';
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typedef struct {
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uint16_t name_len;
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const char *name;
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parserutils_charset_aliases_canon *canon;
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} parserutils_charset_aliases_alias;
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static parserutils_charset_aliases_alias charset_aliases[] = {
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EOT
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my $aliascount = 0;
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foreach my $alias (sort keys %aliases) {
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my $canonnr = $aliases{$alias};
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$output .= "\t{ " . length($alias) . ', "' . $alias . '", &canonical_charset_names[' . $canonnr . "] },\n";
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$aliascount += 1;
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}
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$output .= "};\n\n";
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# Drop the final " || "
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chop $unicodeexp;
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chop $unicodeexp;
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chop $unicodeexp;
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chop $unicodeexp;
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$output .= <<"EOS";
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static const uint16_t charset_aliases_count = ${aliascount};
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#define MIBENUM_IS_UNICODE(x) ($unicodeexp)
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EOS
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if (open(EXISTING, "<", ALIAS_INC)) {
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local $/ = undef();
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my $now = <EXISTING>;
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undef($output) if ($output eq $now);
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close(EXISTING);
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}
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if (defined($output)) {
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open(OUTF, ">", ALIAS_INC);
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print OUTF $output;
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close(OUTF);
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}
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