Ticket #174: parse_control.php

<?php

//$file = file_get_contents('control.file');
$file = <<< END
#Control file for some plugin
Maintainer: Rolando Espinoza La Fuente <rho@prosoftpeople.com>
Title: Elgg test plugin
Package: elggtest
Priority: optional
Version: 1.0
Depends: elgg (>=0.9)
Tags: trackback, blog, integration
Description: Brief description
 Description paragraph 1
 . 
 Description paragraph 2
Conflicts: elgg
END;

$control = parse_plugin_control($file);

print_r($control);


function parse_plugin_control($string) {
    $string = preg_replace("#\n+#", "\n", str_replace("\r", "", trim($string))); // crlf fix

    $lines = split("\n", $string);

    $control = array();
    $lastfield = '';

    foreach ($lines as $line) {
        if (preg_match("/^[\s\t]*#/", $line)) { // ignore comments
            continue;
        }
        elseif (preg_match("#^[^\t\s]#", $line)) { // not starts with space
            if (preg_match("#(\w+)\s*\:\s*(.*)\s*$#", $line, $matches)) {
                $key = $matches[1];
                $val = $matches[2];

                $control[$key] = $val;
                $lastfield = $key;
            } else {
                //error_log("Parse error: invalid plugin control file line\n$line");
            }
        }
        elseif (preg_match("#([\s\t]+)(.*)$#", $line, $matches)){ // allow multilines values
            if (empty($lastfield)) {
                //error_log("Parse error: line without previous entry\n$line");
            }
            elseif (trim($matches[2]) == '.') { // just new line?
                $control[$lastfield] .= "\n";
            }
            else {
                 // append to last field
                $control[$lastfield] .= "\n$matches[2]";
            }
        }
        else {
            // duh!
            //error_log("Parse error: invalid plugin control file line\n$line");
        }
    }

    return $control;
}

?>