mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/Scribunto
synced 2024-12-25 22:33:02 +00:00
a630e3d129
The main benefit of these operators is that they avoid repeating parts of the code. Change-Id: I86ea0eb02715ad5b7c62a71849309ed7095c5972
159 lines
4.3 KiB
PHP
Executable file
159 lines
4.3 KiB
PHP
Executable file
#!/usr/bin/php
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<?php
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if ( PHP_SAPI !== 'cli' && PHP_SAPI !== 'phpdbg' ) {
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die( "This script may only be executed from the command line.\n" );
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}
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$chars = [];
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for ( $i = 0; $i <= 0x10ffff; $i++ ) {
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// Skip UTF-16 surrogates
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if ( $i < 0xd800 || $i > 0xdfff ) {
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$chars[$i] = mb_convert_encoding( pack( 'N', $i ), 'UTF-8', 'UTF-32BE' );
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}
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}
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### Uppercase and Lowercase mappings
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echo "Creating upper and lower tables...\n";
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$L = fopen( __DIR__ . '/lower.lua', 'w' );
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if ( !$L ) {
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die( "Failed to open lower.lua\n" );
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}
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$U = fopen( __DIR__ . '/upper.lua', 'w' );
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if ( !$U ) {
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die( "Failed to open upper.lua\n" );
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}
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fprintf( $L, "-- This file is automatically generated by make-tables.php\n" );
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fprintf( $L, "return {\n" );
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fprintf( $U, "-- This file is automatically generated by make-tables.php\n" );
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fprintf( $U, "return {\n" );
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foreach ( $chars as $i => $c ) {
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$l = mb_strtolower( $c, 'UTF-8' );
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$u = mb_strtoupper( $c, 'UTF-8' );
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if ( $c !== $l ) {
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fprintf( $L, "\t[\"%s\"] = \"%s\",\n", $c, $l );
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}
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if ( $c !== $u ) {
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fprintf( $U, "\t[\"%s\"] = \"%s\",\n", $c, $u );
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}
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}
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fprintf( $L, "}\n" );
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fprintf( $U, "}\n" );
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fclose( $L );
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fclose( $U );
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### Pattern code mappings
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echo "Creating charsets table...\n";
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$fh = fopen( __DIR__ . '/charsets.lua', 'w' );
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if ( !$fh ) {
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die( "Failed to open charsets.lua\n" );
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}
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$pats = [
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// These should match the expressions in UstringLibrary::patternToRegex()
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'a' => [ '\p{L}', 'lu' ],
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'c' => [ '\p{Cc}', null ],
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'd' => [ '\p{Nd}', null ],
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'l' => [ '\p{Ll}', null ],
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'p' => [ '\p{P}', null ],
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's' => [ '\p{Xps}', null ],
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'u' => [ '\p{Lu}', null ],
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# '[\p{L}\p{Nd}]' exactly matches 'a' + 'd'
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'w' => [ null, 'da' ],
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'x' => [ '[0-9A-Fa-f０-９Ａ-Ｆａ-ｆ]', null ],
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'z' => [ '\0', null ],
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];
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$ranges = [];
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/**
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* @param string $k
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* @param int $start
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* @param int $end
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*/
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function addRange( $k, $start, $end ) { // phpcs:ignore MediaWiki.NamingConventions.PrefixedGlobalFunctions
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// phpcs:ignore MediaWiki.NamingConventions.ValidGlobalName
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global $fh, $ranges;
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// Speed/memory tradeoff
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if ( !( $start >= 0x20 && $start < 0x7f ) && $end - $start >= 10 ) {
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$ranges[$k][] = sprintf( "c >= 0x%06x and c < 0x%06x", $start, $end );
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} else {
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for ( $i = $start; $i < $end; $i++ ) {
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fprintf( $fh, "\t\t[0x%06x] = 1,\n", $i );
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}
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}
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}
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fprintf( $fh, "-- This file is automatically generated by make-tables.php\n" );
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fprintf( $fh, "local pats = {\n" );
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foreach ( $pats as $k => $pp ) {
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$ranges[$k] = [];
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$re = $pp[0];
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if ( !$re ) {
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fprintf( $fh, "\t[0x%02x] = {},\n", ord( $k ) );
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continue;
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}
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$re2 = 'fail';
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if ( $pp[1] ) {
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$re2 = [];
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foreach ( str_split( $pp[1] ) as $p ) {
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$re2[] = $pats[$p][0];
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}
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$re2 = implode( '|', $re2 );
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}
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fprintf( $fh, "\t[0x%02x] = {\n", ord( $k ) );
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$rstart = null;
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foreach ( $chars as $i => $c ) {
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if ( preg_match( "/^$re$/u", $c ) && !preg_match( "/^$re2$/u", $c ) ) {
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$rstart ??= $i;
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} elseif ( $rstart !== null ) {
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addRange( $k, $rstart, $i );
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$rstart = null;
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}
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}
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if ( $rstart !== null ) {
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addRange( $k, $rstart, 0x110000 );
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}
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fprintf( $fh, "\t},\n" );
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}
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foreach ( $pats as $k => $pp ) {
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$kk = strtoupper( $k );
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fprintf( $fh, "\t[0x%02x] = {},\n", ord( $kk ) );
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}
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fprintf( $fh, "}\n" );
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foreach ( $pats as $k => $pp ) {
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$body = '';
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$check = [];
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if ( $pp[1] ) {
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foreach ( str_split( $pp[1] ) as $p ) {
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$check[] = sprintf( "pats[0x%02x][k]", ord( $p ) );
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}
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}
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// @phan-suppress-next-line PhanImpossibleConditionInGlobalScope
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if ( $ranges[$k] ) {
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$body = "\tlocal c = tonumber( k ) or 0/0;\n";
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$check = array_merge( $check, $ranges[$k] );
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}
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if ( $check ) {
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$body .= "\treturn " . implode( " or\n\t\t", $check );
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fprintf( $fh, "setmetatable( pats[0x%02x], { __index = function ( t, k )\n%s\nend } )\n",
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ord( $k ), $body );
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}
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}
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foreach ( $pats as $k => $pp ) {
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fprintf( $fh, "setmetatable( pats[0x%02x], { ", ord( strtoupper( $k ) ) );
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fprintf( $fh, "__index = function ( t, k ) return k and not pats[0x%02x][k] end", ord( $k ) );
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fprintf( $fh, " } )\n" );
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}
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fprintf( $fh, "\n-- For speed, cache printable ASCII characters in main tables\n" );
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fprintf( $fh, "for k, t in pairs( pats ) do\n" );
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fprintf( $fh, "\tif k >= 0x61 then\n" );
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fprintf( $fh, "\t\tfor i = 0x20, 0x7e do\n" );
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fprintf( $fh, "\t\t\tt[i] = t[i] or false\n" );
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fprintf( $fh, "\t\tend\n" );
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fprintf( $fh, "\tend\n" );
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fprintf( $fh, "end\n" );
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fprintf( $fh, "\nreturn pats\n" );
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fclose( $fh );
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