PHP code example of tmilos / lexer

1. Go to this page and download the library: Download tmilos/lexer library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php.

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

tmilos / lexer example snippets

 php

$config = new LexerArrayConfig([
            '\\s' => '',
            '\\d+' => 'number',
            '\\+' => 'plus',
            '-' => 'minus',
            '\\*' => 'mul',
            '/' => 'div',
        ]);

// static scan method that returns an array of
$tokens = Lexer::scan($config, '2 + 3');
array_map(function ($t) { return $t->getName(); }, $tokens); // ['number', 'plus', 'number']

// lexer instance
$lexer = new Lexer($config);
$lexer->setInput('2 + 3');
$lexer->moveNext();
while ($lexer->getLookahead()) {
    print $lexer->getLookahead()->getName();
    $lexer->moveNext();
}