Simple PHP script to convert UCF constraints to XDC

ucf2xdc.php

<h3>Convert UCF to XDC</h3>

<?php
$handle = isset($_POST['handle']) && !empty($_POST['handle']) ? $_POST['handle'] : null;

if ($handle === null) {
    echo '
        <form method="POST">
            <textarea name="handle" rows="20" style="width:90%; max-width: 640px"></textarea>
            <br>
            <input type="submit" value="Convert">
        </form>
    ';
    exit();
}

$buffer = $handle;

$buffer = preg_replace("/#([^\n]*)/", "", $buffer);
$buffer = preg_replace("/;([^\n]*)/", "", $buffer);
$buffer = str_replace(["LOC", "PULLUP"], ["PACKAGE_PIN", "PULLUP = true"], $buffer);

preg_match_all("/NET \"([^\"]*)\"([^\n]*)/", $buffer, $matches);

for ($i = 0; $i < count ($matches[0]); $i++) {
    $drive = trim($matches[1][$i]);
    if (strstr($drive, "[")) $drive = "{{$drive}}";
    $device = $matches[2][$i];

    $devices = explode('|', $device);

    $buffer = "set_property -dict {";

    foreach ($devices as $each) {
        $each = trim($each);
        $each = str_replace("\"", "", $each);
        preg_match("/([A-Z_]*) = ([A-Za-z0-9]*)/", $each, $match);
        if (count($match) == 0) { continue; }
        $buffer .= "{$match[1]} {$match[2]} ";
    }

    $buffer = trim($buffer);

    $buffer .= "} [get_ports {$drive}]";
    
    echo $buffer;

    echo "<br>";
}