slash.php

<?php
$opts = getopt('lhc:v::', ['convert:','loop','ls', 'help']);
$helpstr = <<<EOT
Slash will convert strings/paths with / to \ and vice versa.
ie. try 
C:\\Users\\relipse\\AppData\\Local\\JetBrains\\Toolbox\\apps\\PhpStorm\\ch-0\\221.5080.224\\bin\\phpstorm64.exe
or 
/c/path/to/file
php {$argv[0]}
Options:
 -c, --convert   Convert directly from 
 -l, --loop      Loop (Keep prompting and converting)
 -h, --help      Show this help screen.
 --ls            List files in directory
EOT;

if (isset($opts['help']) || isset($opts['h'])){
    die($helpstr);
}
//ls files (list files in path, if it exists)
enum Verbosity: int{
    case NONE = 0;
    case VERBOSE = 1;
    case VERY_VERBOSE = 2;
    case SUPER_VERBOSE = 3;
}

$verbosity = Verbosity::NONE;

if (isset($opts['v'])){
    $verbosity = match($opts['v']){
        false => Verbosity::VERBOSE,
        'v' => Verbosity::VERY_VERBOSE,
        'vv' => Verbosity::SUPER_VERBOSE,
        default => Verbosity::NONE,
    };

    if ($verbosity === Verbosity::NONE){
        echo "Invalid verbosity value: {$opts['v']}\n";
        exit;
    }else{
        echo "Verbosity Level: ".$verbosity->value." (".$verbosity->name.")\n\n";
    }
}

$ls = match($verbosity){
    Verbosity::SUPER_VERBOSE => true,
    default => isset($opts['ls']),
};

$convert = null;
if (!empty($opts['convert'])){
    $convert = $opts['convert'];
}
if (!empty($opts['c'])){
    $convert = $opts['c'];
}

if (isset($convert)){
    showconvertshow($convert, $ls);
    exit;
}



echo 'Welcome to slash which will convert / to \\ and \\ to /. Enter a path:'."\n";
while(true) {
    $line = readline();
    if ($line) {
        $s = $line;
    }else{
        //echo "Exiting...\n";
        exit;
    }
    showconvertshow($s, $ls);
    if (!isset($opts['l']) && !isset($opts['loop'])){
        //break if not a loop
        break;
    }
}

function convert(string $s): string{
    if (strpos($s, '\\') !== false){
        if (strpos($s, ':\\') === 1){
            $s = '/'.strtolower($s[0]).substr($s, 1);
            $s = str_replace(':\\', '\\', $s);
        }
        $s = str_replace('\\','/', $s);
    }else if (strpos($s, '/') !== false){
        if (preg_match('#^/([a-z])/#i', $s, $matches)){
            $s = $matches[1].':\\'.substr($s, 3);
        }
        $s = str_replace('/', '\\', $s);
    }
    return $s;
}

function showconvertshow(string $s, bool $ls): void{
    global $verbosity;
    if ($verbosity->value > 0) {
        echo "Before: $s\n";
    }
    $s1exists = false;
    if (file_exists($s)){
        $s1exists = true;
        if ($verbosity->value > 0) {
            echo "(Path exists)\n";
        }
        if ($ls){
            $files = array_diff(scandir($s), array('.', '..'));
            print_r($files);
        }
    }else{
        if ($verbosity->value > 0) {
            echo "(Path does not exist)\n";
        }
    }
    //echo "Realpath: ".realpath($s)."\n";
    if ($verbosity->value > 0) {
        echo "After: ";
    }
    $s2 = convert($s);
    echo $s2."\n";
    if (file_exists($s2)){
        if ($verbosity->value > 0) {
            echo "(Path exists now)\n";
            if ($verbosity->value > 1) {
                echo "Actual Path: " . realpath($s2);
            }
        }
        if (!$s1exists && $ls){
            echo "\n";
            $files = array_diff(scandir($s2), array('.', '..'));
            print_r($files);
        }
    }else{
        if ($verbosity->value > 0) {
            echo "(Path does not exist)\n";
        }
    }

}