82 lines
2.2 KiB
PHP
82 lines
2.2 KiB
PHP
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<?php
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require __DIR__ . '/phpyLang.php';
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$grammarFileToName = [
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__DIR__ . '/php5.y' => 'Php5',
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__DIR__ . '/php7.y' => 'Php7',
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];
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$tokensFile = __DIR__ . '/tokens.y';
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$tokensTemplate = __DIR__ . '/tokens.template';
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$skeletonFile = __DIR__ . '/parser.template';
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$tmpGrammarFile = __DIR__ . '/tmp_parser.phpy';
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$tmpResultFile = __DIR__ . '/tmp_parser.php';
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$resultDir = __DIR__ . '/../lib/PhpParser/Parser';
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$tokensResultsFile = $resultDir . '/Tokens.php';
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$kmyacc = getenv('KMYACC');
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if (!$kmyacc) {
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// Use phpyacc from dev dependencies by default.
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$kmyacc = __DIR__ . '/../vendor/bin/phpyacc';
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}
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$options = array_flip($argv);
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$optionDebug = isset($options['--debug']);
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$optionKeepTmpGrammar = isset($options['--keep-tmp-grammar']);
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///////////////////
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/// Main script ///
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///////////////////
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$tokens = file_get_contents($tokensFile);
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foreach ($grammarFileToName as $grammarFile => $name) {
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echo "Building temporary $name grammar file.\n";
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$grammarCode = file_get_contents($grammarFile);
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$grammarCode = str_replace('%tokens', $tokens, $grammarCode);
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$grammarCode = preprocessGrammar($grammarCode);
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file_put_contents($tmpGrammarFile, $grammarCode);
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$additionalArgs = $optionDebug ? '-t -v' : '';
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echo "Building $name parser.\n";
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$output = execCmd("$kmyacc $additionalArgs -m $skeletonFile -p $name $tmpGrammarFile");
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$resultCode = file_get_contents($tmpResultFile);
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$resultCode = removeTrailingWhitespace($resultCode);
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ensureDirExists($resultDir);
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file_put_contents("$resultDir/$name.php", $resultCode);
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unlink($tmpResultFile);
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echo "Building token definition.\n";
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$output = execCmd("$kmyacc -m $tokensTemplate $tmpGrammarFile");
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rename($tmpResultFile, $tokensResultsFile);
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if (!$optionKeepTmpGrammar) {
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unlink($tmpGrammarFile);
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}
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}
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////////////////////////////////
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/// Utility helper functions ///
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////////////////////////////////
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function ensureDirExists($dir) {
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if (!is_dir($dir)) {
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mkdir($dir, 0777, true);
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}
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}
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function execCmd($cmd) {
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$output = trim(shell_exec("$cmd 2>&1"));
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if ($output !== "") {
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echo "> " . $cmd . "\n";
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echo $output;
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}
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return $output;
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}
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