/**
* Build a training set from a directory using the following convention:
* The directory should contain one subdirectory for each class. The class
* name is the subdirectory's base name. Each subdirectory should contain
* one file for each document.
*
* @param string $dir
* @return TrainingSet
*/
public static function buildTrainingSet($dir)
{
$tok = new WhitespaceAndPunctuationTokenizer();
$tset = new TrainingSet();
foreach (new DirectoryIterator($dir) as $d) {
if ($d->isFile() || $d->isDot()) {
continue;
}
$class = $d->getBasename();
foreach (new DirectoryIterator($d->getPathname()) as $f) {
if (!$f->isFile()) {
continue;
}
$tset->addDocument($class, new TokensDocument($tok->tokenize(file_get_contents($f->getPathname()))));
}
}
return $tset;
}
<?php
include '../../../autoloader.php';
include '../../testing.php';
use NlpTools\Tokenizers\WhitespaceAndPunctuationTokenizer;
function arrays_match($a1, $a2)
{
return count(array_diff($a1, $a2)) == 0;
}
$tok = new WhitespaceAndPunctuationTokenizer();
$s = "This is a simple space delimited string\nwith new lines and many spaces between the words.\nAlso\ttabs\ttabs\ttabs\ttabs";
$tokens = array('This', 'is', 'a', 'simple', 'space', 'delimited', 'string', 'with', 'new', 'lines', 'and', 'many', 'spaces', 'between', 'the', 'words', '.', 'Also', 'tabs', 'tabs', 'tabs', 'tabs');
_assert(arrays_match($tok->tokenize($s), $tokens), "Problem tokenizing simple ASCII whitespace with ascii content");
$s = "Ελληνικό κείμενο για παράδειγμα utf-8 χαρακτήρων";
$tokens = array('Ελληνικό', 'κείμενο', 'για', 'παράδειγμα', 'utf', '-', '8', 'χαρακτήρων');
_assert(arrays_match($tok->tokenize($s), $tokens), "Problem tokenizing simple ASCII whitespace with utf-8 content");
$s = "Here exists non-breaking space ";
$tokens = array('Here', 'exists', 'non', '-', 'breaking', 'space');
_assert(arrays_match($tok->tokenize($s), $tokens), "Problem tokenizing utf-8 whitespace");