update_syntax.php

<?php
/**
 * Script to gather up all native functions, classes, and interfaces from any release of
 * PHP for the purposes of updating the VIM syntax file.
 *
 * @author Paul Garvin <paul@paulgarvin.net>
 * @copyright Copyright 2009 Paul Garvin
 * @license http://www.opensource.org/licenses/mit-license.php MIT License
 *
 * @author Stan Angeloff <stanimir@angeloff.name>
 */

/**
 * This script works by loading up PHP extensions and using reflection to pull
 * the functions, classes, and constants out of those extesions. The list of extensions
 * below are ones included with PHP 5.3 source code. The ones commented out depend on
 * an external library being installed, are Unix specific, or just not commonly used.
 *
 * Add, comment, or uncomment to fit your needs or particular PHP installation.
 * Remember that some of these extensions are likely shared extensions and must be
 * enabled in your php.ini file.
 *
 * NOTE: mysqlnd is not included because it exposes no functions, classes, or constants.
 * The pdo_* extensions are not included in the list because they do not expose any
 * functions, classes, or constants themselves. The constants and methods specific
 * to that driver are exposed though the PDO extension itself. The pdo_* extensions
 * must still be enabled (compiled in or loaded as shared) for these constants to show up.
 */
$allowed_extensions = array(
	# 'calendar',
	# 'com_dotnet',
	# 'ctype',
	# 'dba',
	# 'enchant',
	# 'exif',
	# 'fileinfo',
	# 'filter',
	# 'ftp',
	# 'gmp',
	# 'imap',
	# 'interbase',
	# 'intl',
	# 'ldap',
	# 'mssql',
	# 'oci8',
	# 'oci8_11g',
	# 'odbc',
	# 'pcntl',
	# 'posix',
	# 'pspell',
	# 'readline',
	# 'recode',
	# 'shmop',
	# 'snmp',
	# 'sqlite',
	# 'sybase_ct',
	# 'sysvmsg',
	# 'sysvsem',
	# 'sysvshm',
	# 'tidy',
	# 'xmlrpc',
	# 'xsl',
	'bcmath',
	'bz2',
	'core',
	'curl',
	'date',
	'dom',
	'ereg',
	'gd',
	'gettext',
	'hash',
	'iconv',
	'json',
	'libxml',
	'mbstring',
	'mcrypt',
	'mhash',
	'mysql',
	'mysqli',
	'openssl',
	'pcre',
	'pdo',
	'pgsql',
	'phar',
	'reflection',
	'session',
	'simplexml',
	'soap',
	'sockets',
	'spl',
	'sqlite3',
	'standard',
	'tokenizer',
	'wddx',
	'xml',
	'xmlreader',
	'xmlwriter',
	'zip',
	'zlib',
);

$processed = array();

foreach ($allowed_extensions as $extension) {

	try {
		$details = array();
		$options = new ReflectionExtension($extension);

		$classes   = array();
		$functions = array_keys($options->getFunctions());
		$constants = array_keys($options->getConstants());

		foreach ($options->getClasses() as $class) {
			$classes[] = $class->getName();
			$constants = array_merge($constants, array_keys($class->getConstants()));
		}

		$constants = array_unique($constants);

		$details['name'] = $options->getName();

		if (sizeof ($functions)) {
			$details['functions'] = implode(' ', $functions);
		}
		if (sizeof ($constants)) {
			$details['constants'] = implode(' ', $constants);
		}
		if (sizeof ($classes)) {
			$details['classes'] = implode(' ', $classes);
		}

		$processed[$extension] = $details;
	} catch (Exception $e) {
		print "ERROR: '{$extension}' -- " . $e->getMessage() . "\n";
	}
}

$code = "syn case match\n\n";

foreach ($processed as $extension) {
	if (isset ($extension['constants'])) {
		$code = $code . '" ' . $extension['name'] . "\n";
		$code = $code . 'syn keyword phpConstants ' . $extension['constants'] . " contained\n\n";
	}
}

$code = $code . "syn case ignore\n\n";

foreach ($processed as $extension) {
	$code = $code . '" ' . $extension['name'] . "\n";
	if (isset ($extension['functions'])) {
		$code = $code . 'syn keyword phpFunctions ' . $extension['functions'] . " contained\n";
	}
	if (isset ($extension['classes'])) {
		$code = $code . 'syn keyword phpClasses ' . $extension['classes'] . " contained\n\n";
	}
}

file_put_contents(
	__DIR__ . '/syntax/php.vim',
	str_replace('${code}', $code, file_get_contents(__DIR__ . '/syntax/php.template')),
	LOCK_EX
);