php_to_swig

<?php

echo "----------------------------------\n";
echo "| PHP to Swig Template Converter |\n";
echo "|                                |\n";
echo "| @yasinaydin @edigu             |\n";
echo "----------------------------------\n";

// User settings

$regexPrefix = '/';
$regexSuffix = '/m';
$pageStartContent = "{% extends '../index.html' %}" . PHP_EOL . "{% block page %}" . PHP_EOL;
$pageEndContent = PHP_EOL . "{% endblock %}";

$rules = array(
	'echo_var' => array(
		'<\?php\s+echo\s+\$(.*?)\?>',
		'{{ $1 }}',
	),
	'include_with_space' => array(
		'(<\?php\s+)include(|_once)\s+"templates\/(.*)\.php"?;?\s+(\?>)',
		'{% include "../$3.html" %}',
	),
	'include_function' => array(
		'(<\?php\s+)include(|_once)\("templates\/(.*)\.php"\)?;?\s+(\?>)',
		'{% include "../$3.html" %}',
	), 
	'include_multiline_with_variable' => array(
		'(<\?php(\n|\r)\s+\$)(.*)(;)(\n|\r)\s+include\s+\"(templates)(.*).php\";(\n|\r|\s+)\?>',
		'{% set $3 %}'.PHP_EOL.'{% include "..$7.html" %}',
	),
	'for' => array(
		'<\?php\s*for\s*\(\s*\$(\w*)\s*=\s*(\d*)\s*;\s*\$\w*\s*<[=]?\s*[\$]?(.*)\s*;\s*(.*):\s*\?>',
		'{% for $1 in range($2,$3) -%}',
	),
	'endfor' => array(
		'<\?php\s+endfor(\;)?\s*(\;)?\?>',
		'{%- endfor %}',
	),
	'if' => array(
		'(\n*|\r*|\s*)<\?php\s+if\s*\(\$(.*)\)\s*:\s*\?>',
		'$1{% if $2 %}',
	),
	'else' => array(
		'<\?php\s+else:\s*\?>',
		'{% else %}',
	),
	'endif' => array(
		'<\?php\s+endif[\;]*\s*\?>',
		'{% endif %}',
	),
	'set_with_microtime' => array(
		'<\?php\n*\s*\r*\$(\w*)\s*=\s*"(.*)"\s*.\s*microtime\s*\(true\)\s*;*\n*\s*\r*\?>',
		'{% set $1 = "$2"+microtime %}',
	),
	'equals_to_microtime' => array(
		'<\?php\n*\s*\r*\$([\_\w]+)\s*=\s*microtime\s*\(true\).*\?>',
		'{% set $1 = microtime %}'
	),
	'two_var_one_include' => array(
		'<\?php\n*\r*(\s*)\$(\w*)\s*=\s*"(.*)";\n*\r*\s*\$(\w*)\s*=\s*"(.*)";\n*\r*\s*include\s*"templates(.*).php"(;)?\n*\r*\s*\?>',
		PHP_EOL.'{% set $2 = "$3" %}'.PHP_EOL.'{% set $4 = "$5" %}'.PHP_EOL.'{% include "..$6.html" %}'
	),
	'three_var' => array(
		'<\?php\n*\r*\s*\$(.*)\s*=\s*(.*);\n*\r*\s*\$(.*)\s*=\s*(.*);\n*\r*\s*\$(.*)\s*=\s*(.*);\n*\r*\s*\?>',
		PHP_EOL.'{% set $1 = $2 %}'.PHP_EOL.'{% set $3 = $4 %}'.PHP_EOL.'{% set $5 = $6 %}'
	),
	'echo_isset' => array(
		'<\?php\s*echo\s*isset\(\$(\w*)\)\s*\?\s*\$(\w*)\s*:\s*""\s*\?>',
		'{{ $2 }}'
	),
	'one_var_one_include' => array(
		'.*<\?php\s*\$([a-zA-Z1-9\-ÇŞĞÜÖİçşğüöı]+)\s*=\s*(["?]*)([a-zA-Z1-9\-\' ÇŞĞÜÖİçşğüöı]+)(["?]*)\s*;[\n\s]*include\s*"templates\/(\w*)\/([a-zA-Z1-9\-]+).php"[;?]*\s*\?>',
		'{% set $1 = $2$3$4 %}{% include "../$5/$6.html" %}'
	),
	'set_var' => array(
		'.*<\?php\s*\$(\w*\d*)\s*=\s*"(\w*\d*)"\s*;\s*\?>',
		'{% set $1 = "$2" %}'
	)
);

// DO NOT CHANGE BELOW

// Initializing regex patterns

$patterns = array();
$replaces = array();

// Creating regex patterns

foreach ($rules as $rule) {
	array_push($patterns, $regexPrefix . $rule[0] . $regexSuffix);
	array_push($replaces, $rule[1]);
}

// Getting CLI arg[1] for source directory

if (count($argv) != 2 ) {
	echo "Error! Please provide directory name as path (absolute or relative).\n";
	echo "Exiting.\n";
	exit(0);
}

// Loading iterator for files

$dir = new RecursiveDirectoryIterator($argv[1]);
$rec = new RecursiveIteratorIterator($dir);
$pattern = new RegexIterator($rec, '/^.+\.php$/i', RecursiveRegexIterator::GET_MATCH);

// Processing files

echo "Converting files...\t";
foreach ($pattern as $name => $file) {
	$contents = file_get_contents($name);

	if ( explode("/",$name)[1] === "pages" ) {
		$contents = $pageStartContent . $contents . $pageEndContent;
	}
    
    $newContent = preg_replace($patterns, $replaces, $contents);
    $newFilename = str_replace('.php', '.html', $name);
    file_put_contents($newFilename, $newContent);
    unlink($name);
}
echo "Done!\n";

/*
// @TODO: will add PHP check after complete
// @TODO: tests
// @TODO: will replace \n with .PHP_EOL. in regex replaces()
*/