Twiggify

php2twig.php

#!/usr/bin/env php
<?php

$file = $argv[1];
$contents = file_get_contents($file);

/** @var $patterns */
$patterns = [
    /** @lang PhpRegExp */
    '~<\?= ([^?]+);? \?>~m' => '{{ $1 }}',
    /** @lang PhpRegExp */
    '~<\?(php)? ?([^?]+);? ?\?>~s' => '{% $2 %}',
    /** @lang PhpRegExp */
    '~->~' => '.',
    '~=>~' => ':',
    /** @lang PhpRegExp */
    '~\$~' => '',
    //    '~this~' => '',
    /** @lang PhpRegExp */
    '~\{\{ this\.t\(([\'"][^\'"]*[\'"])\) \}\}~' => '{{ $1|t }}',
    /** @lang PhpRegExp */
    '~\{\{ this\.p\(([^)]*)\) \}\}~' => '{{ $1|p }}',
    '~\{% if \((.*)\) *: *%}~' => '{% if $1 %}',
    '~\{% else *: *%}~' => '{% else %}',
    '~\{% elseif \((.*)\) *: *%}~' => '{% elseif $1 %}',
    '~\{% foreach \((.*)\) *: *%}~' => '{% for $1 %}',
    '~\{% endforeach *%}~' => '{% endfor %}',
    /** @lang PhpRegExp */
    '~\{\{ D3R::page\(\)\.renderPartial\(~' => '{{ partial(',
    '~\{\% D3R::page\(\)\.addJavascript\(~' => '{% javascript(',
    '~\{\% this\.page\.addJavascript\(~' => '{% javascript(',
    '~\{\% D3R::page\(\)\.addScript\(~' => '{% script(',
    '~\{\% this\.page\.addScript\(~' => '{% script(',
    '~\{\% D3R::page\(\)\.addOnLoad\(~' => '{% onload(',
    '~\{\% this\.page\.addOnLoad\(~' => '{% onload(',
    '~\{\% D3R::page\(\)\.addStylesheet\(~' => '{% stylesheet(',
    '~\{\% this\.page\.addStylesheet\(~' => '{% stylesheet(',
    '~D3R::page\(\)~' => 'D3R.page()',
    '~\/\**? (.*) */~' => '{# $1 #}',
    '~\&\&~' => 'and',
    '~\|\|~' => 'or',
    '~; +([}%]})~' => ' $1',
];

$contents = preg_replace(array_keys($patterns), array_values($patterns), $contents);
$outputFile = preg_replace('~\.html$~', '.twig', $file);
echo 'Writing to ' . $outputFile;
file_put_contents($outputFile, $contents);