public static function Compile($template)
{
// Initialization
self::$current_line = 1;
self::$tag_stack = array();
self::$literal_stack = array();
self::$capture_stack = array();
self::$errors = array();
self::$defines = array();
self::$has_nocache = false;
// Convert to Unix newline characters
$template = String::FormatNewlines($template);
// Mark with line numbers
$line_number = 0;
$marked_template = '';
foreach (explode(String::NEWLINE_UNIX, $template) as $line) {
$line_number++;
$marked_template .= preg_replace('~{([/$a-z"]+)~i', "(*{$line_number}*){\\1", $line) . String::NEWLINE_UNIX;
}
unset($template);
// Strip comment sections
$marked_template = preg_replace('~{\\*.*?\\*}~msi', '', $marked_template);
// Create regular expression
$regex = '~\\(\\*(\\d+)\\*\\)' . self::DELIMITER_START . '([/*$a-z"]+.*?)' . self::DELIMITER_END . '~msi';
// Compile the code
$compiled = preg_replace_callback($regex, array('self', 'CompileTag'), $marked_template);
// Second pass to handle {nocache} sections
$compiled = preg_replace_callback('~\\{nocache\\}(.*?)\\{/nocache\\}~msi', array('self', 'NocachePass'), $compiled);
// Check for unclosed tag(s)
foreach (self::$tag_stack as $unclosed_tag) {
self::$errors[] = 'Unclosed {' . $unclosed_tag . '} tag at end of template';
}
// Check for unclosed literal sections
foreach (self::$literal_stack as $unclosed_tag) {
self::$errors[] = 'Unclosed {' . $unclosed_tag . '} tag at end of template';
}
// Code cleanup
$compiled = preg_replace("~\n+~", "\n", trim($compiled));
if (self::$has_nocache) {
$compiled = self::PHP_START . '$this->nocache = true;' . self::PHP_END . $compiled;
}
return count(self::$errors) ? false : $compiled;
}
