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#!/usr/bin/php

<?php

chdir(dirname(__FILE__));

require_once 'common.php';

assertCli();

/**

* @file

* Compiles all of HTML Purifier's library files into one big file

* named HTMLPurifier.standalone.php. This is usually called during the

* release process.

/**

* Global hash that tracks already loaded includes

$GLOBALS['loaded'] = array();

/**

* Custom FSTools for this script that overloads some behavior

* @warning The overloading of copy() is not necessarily global for

*          this script. Watch out!

class MergeLibraryFSTools extends FSTools

{

public function copyable($entry)

{

// Skip hidden files

if ($entry[0] == '.') {

return false;

}

return true;

}

public function copy($source, $dest)

{

copy_and_remove_includes($source, $dest);

}

$FS = new MergeLibraryFSTools();

/**

* Replaces the includes inside PHP source code with the corresponding

* source.

* @param string $text PHP source code to replace includes from

function replace_includes($text)

{

// also remove vim modelines

return preg_replace_callback(

"/require(?:_once)? ['\"]([^'\"]+)['\"];/",

'replace_includes_callback',

$text

);

}

/**

* Removes leading PHP tags from included files. Assumes that there is

* no trailing tag. Also removes vim modelines.

* @note This is safe for files that have internal <?php

* @param string $text Text to have leading PHP tag from

function remove_php_tags($text)

{

$text = preg_replace('#// vim:.+#', '', $text);

return substr($text, 5);

}

/**

* Copies the contents of a directory to the standalone directory

* @param string $dir Directory to copy

function make_dir_standalone($dir)

{

global $FS;

return $FS->copyr($dir, 'standalone/' . $dir);

}

/**

* Copies the contents of a file to the standalone directory

* @param string $file File to copy

function make_file_standalone($file)

{

global $FS;

$FS->mkdirr('standalone/' . dirname($file));

copy_and_remove_includes($file, 'standalone/' . $file);

return true;

}

/**

* Copies a file to another location recursively, if it is a PHP file

* remove includes

* @param string $file Original file

* @param string $sfile New location of file

function copy_and_remove_includes($file, $sfile)

{

$contents = file_get_contents($file);

if (strrchr($file, '.') === '.php') $contents = replace_includes($contents);

return file_put_contents($sfile, $contents);

}

/**

* @param $matches preg_replace_callback matches array, where index 1

*        is the filename to include

function replace_includes_callback($matches)

{

$file = $matches[1];

$preserve = array(

// PEAR (external)

'XML/HTMLSax3.php' => 1

);

if (isset($preserve[$file])) {

return $matches[0];

}

if (isset($GLOBALS['loaded'][$file])) return '';

$GLOBALS['loaded'][$file] = true;

return replace_includes(remove_php_tags(file_get_contents($file)));

}

echo 'Generating includes file... ';

shell_exec('php generate-includes.php');

echo "done!\n";

chdir(dirname(__FILE__) . '/../library/');

echo 'Creating full file...';

$contents = replace_includes(file_get_contents('HTMLPurifier.includes.php'));

$contents = str_replace(

// Note that bootstrap is now inside the standalone file

"define('HTMLPURIFIER_PREFIX', realpath(dirname(__FILE__) . '/..'));",

"define('HTMLPURIFIER_PREFIX', dirname(__FILE__) . '/standalone');

set_include_path(HTMLPURIFIER_PREFIX . PATH_SEPARATOR . get_include_path());",

$contents

);

file_put_contents('HTMLPurifier.standalone.php', $contents);

echo ' done!' . PHP_EOL;

echo 'Creating standalone directory...';

$FS->rmdirr('standalone'); // ensure a clean copy

// data files

$FS->mkdirr('standalone/HTMLPurifier/DefinitionCache/Serializer');

make_file_standalone('HTMLPurifier/EntityLookup/entities.ser');

make_file_standalone('HTMLPurifier/ConfigSchema/schema.ser');

// non-standard inclusion setup

make_dir_standalone('HTMLPurifier/ConfigSchema');

make_dir_standalone('HTMLPurifier/Language');

make_dir_standalone('HTMLPurifier/Filter');

make_dir_standalone('HTMLPurifier/Printer');

make_file_standalone('HTMLPurifier/Printer.php');

make_file_standalone('HTMLPurifier/Lexer/PH5P.php');

echo ' done!' . PHP_EOL;

// vim: et sw=4 sts=4

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