48 lines
1.6 KiB
PHP
48 lines
1.6 KiB
PHP
<?php
|
|
|
|
class Klein {
|
|
private $code;
|
|
|
|
function compile($html) {
|
|
$arg = function($name) {
|
|
$list = explode(".", $name);
|
|
$first = array_shift($list);
|
|
return "$first" . implode("", array_map(function($x) { return "['$x']"; }, $list));
|
|
};
|
|
|
|
$rx = function ($grammar) use ($arg) {
|
|
list($pattern, $result) = $grammar;
|
|
$body = strtr($pattern, [" " => "\s*", "+" => "\s+", ":v" => "(\w+(\s*\.\s*\w+)*)", ":x" => "(\w+)"]);
|
|
return ["/$body/",
|
|
function ($x) use ($result, $arg) {
|
|
$body = preg_replace_callback("/#(\d+)/", function ($s) use($x, $arg) {
|
|
return $arg($x[$s[1]]);
|
|
}, $result);
|
|
return "<?php $body ?>";
|
|
}];
|
|
};
|
|
|
|
$pattern = array_map($rx, [
|
|
["{% for+:v+in+:v %}", "foreach(\$#3 as \$n => \$#1): \$loop = ['first' => \$n == 0];"],
|
|
["{% endfor %}", "endforeach;"],
|
|
["{% if+:v %}", "if(isset(\$#1) && \$#1 ):"],
|
|
["{% endif %}", "endif;"],
|
|
["{{ :v }}", "echo \$#1;"],
|
|
["{{ :v\|:x }}", "echo #3(\$#1);"]
|
|
]);
|
|
|
|
$result = file_get_contents($html);
|
|
foreach($pattern as $arg) {
|
|
list($key, $value) = $arg;
|
|
$result = preg_replace_callback($key, $value, $result);
|
|
}
|
|
$this->code = $result;
|
|
}
|
|
|
|
function render($vars) {
|
|
extract($vars);
|
|
ob_start();
|
|
eval(" ?>".$this->code."<?php ");
|
|
return ob_get_clean();
|
|
}
|
|
}
|