CLI for the PHP version of CSSTidy

csstidy

#!/usr/bin/env php
<?php
/**
 * CSSTidy - Command Line Interface (CLI)
 *
 * Command Line Interface that try to mimic as much as possible the C++ CLI
 * version of csstidy. It should be a drop in replacment for the C++ CLI that is
 * no longuer maintain. New settings like css_level are added.
 *
 * Copyright 2005, 2006, 2007 Florian Schmitz
 *
 * This file is part of CSSTidy.
 *
 *   CSSTidy is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Lesser General Public License as published by
 *   the Free Software Foundation; either version 2.1 of the License, or
 *   (at your option) any later version.
 *
 *   CSSTidy is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public License
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * @license http://opensource.org/licenses/lgpl-license.php GNU Lesser General Public License
 * @package csstidy
 * @author Florian Schmitz (floele at gmail dot com) 2005-2007
 * @author Brett Zamir (brettz9 at yahoo dot com) 2007
 * @author Nikolay Matsievsky (speed at webo dot name) 2009-2010
 * @author Cedric Morin (cedric at yterium dot com) 2010-2012
 * @author Christopher Finke (cfinke at gmail.com) 2012
 * @author Etienne Desautels (etienne dot desautels at gmail dot com) 2012
 */

/**
 * Contains the Parser class
 *
 * @version 1.4
 */
include('class.csstidy.php');

/**
 * Return the usage message to sdterr and exit with return code 1
 * @access private
 * @version 1.0
 */
function _show_usage() {
    file_put_contents('php://stderr', "Usage:

csstidy input_filename [
 --compress_colors=[true|false] |
 --compress_font-weight=[true|false] |
 --discard_invalid_properties=[false|true] |
 --discard_invalid_selectors=[false|true] |
 --lowercase_s=[false|true] |
 --preserve_css=[false|true] |
 --remove_bslash=[true|false] |
 --remove_last_;=[false|true] |
 --sort_properties=[false|true] |
 --sort_selectors=[false|true] |
 --timestamp=[false|true] |
 --merge_selectors=[2|1|0] |
 --case_properties=[0|1|2] |
 --optimise_shorthands=[1|2|0] |
 --template=[default|filename|low|high|highest] |
 --css_level=[CSS3.0|CSS2.1|CSS2.0|CSS1.0] |
 output_filename ]*\n");
    exit(1);
}


// Check if there's at least one argument
if ($argc < 2) {
    _show_usage();
}

// Get the first argument, the input filename
$input = $argv[1];

// Set the input to stdin if filename is -
if ($input == "-") {
    $input = 'php://stdin';
// Check that the filename is not a setting
} else if (strpos($input, '-') === 0) {
    _show_usage();
}

// Get the data
$css_code = file_get_contents($input);

// Exit on error when reading the data
if ($css_code === false) {
    file_put_contents('php://stderr', "The file \"" . $input . "\" does not exist.\n");
    exit(1);
}

// Get the output file
if ($argc > 2) {
    $output = $argv[$argc - 1];
    if (strpos($output, '-') === 0) {
        $output = 'php://stdout';
    }
} else {
    $output = 'php://stdout';
}

$css = new csstidy();

// Reset some default settings to match csstidy CLI (C++) defaults
$css->set_cfg('remove_last_;', false);
$css->set_cfg('case_properties', 0);
$css->set_cfg('merge_selectors', 2);

// Set the settings defined on the CLI
$settings = array(  'compress_colors' => 'bool',
                    'compress_font-weight' => 'bool',
                    'discard_invalid_properties' => 'bool',
                    'discard_invalid_selectors' => 'bool',
                    'lowercase_s' => 'bool',
                    'preserve_css' => 'bool',
                    'remove_bslash' => 'bool',
                    'remove_last_;' => 'bool',
                    'sort_properties' => 'bool',
                    'sort_selectors' => 'bool',
                    'timestamp' => 'bool',
                    'merge_selectors' => 'int',
                    'case_properties' => 'int',
                    'optimise_shorthands' => 'int',
                    'template' => 'str',
                    'css_level' => 'str',
                );

// Can't use getopt here because too limited and broken
foreach ($argv as $arg) {
    // Check if it's a settings
    if (strpos($arg, '--') === 0 && strpos($arg, '=') !== false) {
        // Remove the -- and split the setting name and the value
        $arg = explode('=', substr($arg, 2), 2);
        $setting = $arg[0];
        $value = $arg[1];
        if (array_key_exists($setting, $settings)) {
            switch ($settings[$setting]) {
                case 'bool':
                    if ($value === 'true') {
                        $value = true;
                    } else if ($value === 'false') {
                        $value = false;
                    } else {
                        _show_usage();
                    }
                    // Cast it to int for sort_selectors,
                    // there's a mismatch between the PHP and C++ versions
                    if ($setting === 'sort_selectors') {
                        $value = intval($value);
                    }
                    break;
                case 'int':
                    if (in_array($value, array('0', '1', '2'))) {
                        $value = intval($value);
                    } else {
                        _show_usage();
                    }
                    break;
            }
            $css->set_cfg($setting, $value);
        }
    }
}

// Parse the CSS
$css->parse($css_code);

// Optimize and output the CSS file
if (file_put_contents($output, $css->print->plain()) === false) {
    file_put_contents('php://stderr', "There's a problem writing to this file \"" . $output . "\".\n");
    exit(1);
}


?>