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<?php
namespace Gettext\Extractors;
use Gettext\Translations;
use Gettext\Utils\PhpFunctionsScanner;
/**
* Class to get gettext strings from php files returning arrays.
*/
class PhpCode extends Extractor implements ExtractorInterface
{
public static $options = [
// - false: to not extract comments
// - empty string: to extract all comments
// - non-empty string: to extract comments that start with that string
// - array with strings to extract comments format.
'extractComments' => false,
'constants' => [],
'functions' => [
'gettext' => 'gettext',
'__' => 'gettext',
'ngettext' => 'ngettext',
'n__' => 'ngettext',
'pgettext' => 'pgettext',
'p__' => 'pgettext',
'dgettext' => 'dgettext',
'd__' => 'dgettext',
'dngettext' => 'dngettext',
'dn__' => 'dngettext',
'dpgettext' => 'dpgettext',
'dp__' => 'dpgettext',
'npgettext' => 'npgettext',
'np__' => 'npgettext',
'dnpgettext' => 'dnpgettext',
'dnp__' => 'dnpgettext',
'noop' => 'noop',
'noop__' => 'noop',
],
];
/**
* {@inheritdoc}
*/
public static function fromString($string, Translations $translations, array $options = [])
{
$options += static::$options;
$functions = new PhpFunctionsScanner($string);
if ($options['extractComments'] !== false) {
$functions->enableCommentsExtraction($options['extractComments']);
}
$functions->saveGettextFunctions($translations, $options);
}
/**
* Decodes a T_CONSTANT_ENCAPSED_STRING string.
*
* @param string $value
*
* @return string
*/
public static function convertString($value)
{
if (strpos($value, '\\') === false) {
return substr($value, 1, -1);
}
if ($value[0] === "'") {
return strtr(substr($value, 1, -1), ['\\\\' => '\\', '\\\'' => '\'']);
}
$value = substr($value, 1, -1);
return preg_replace_callback(
'/\\\(n|r|t|v|e|f|\$|"|\\\|x[0-9A-Fa-f]{1,2}|u{[0-9a-f]{1,6}}|[0-7]{1,3})/',
function ($match) {
switch ($match[1][0]) {
case 'n':
return "\n";
case 'r':
return "\r";
case 't':
return "\t";
case 'v':
return "\v";
case 'e':
return "\e";
case 'f':
return "\f";
case '$':
return '$';
case '"':
return '"';
case '\\':
return '\\';
case 'x':
return chr(hexdec(substr($match[0], 1)));
case 'u':
return self::unicodeChar(hexdec(substr($match[0], 1)));
default:
return chr(octdec($match[0]));
}
},
$value
);
}
//http://php.net/manual/en/function.chr.php#118804
private static function unicodeChar($dec)
{
if ($dec < 0x80) {
return chr($dec);
}
if ($dec < 0x0800) {
return chr(0xC0 + ($dec >> 6))
.chr(0x80 + ($dec & 0x3f));
}
if ($dec < 0x010000) {
return chr(0xE0 + ($dec >> 12))
.chr(0x80 + (($dec >> 6) & 0x3f))
.chr(0x80 + ($dec & 0x3f));
}
if ($dec < 0x200000) {
return chr(0xF0 + ($dec >> 18))
.chr(0x80 + (($dec >> 12) & 0x3f))
.chr(0x80 + (($dec >> 6) & 0x3f))
.chr(0x80 + ($dec & 0x3f));
}
}
}
|