Continue refactoring examples

examples/basic-docx-parser/index.php

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+<?php
+/**
+ * DocX Parser
+ *
+ * For namespaces use | instead of :
+ *
+ *
+ * @author  Emily Brand
+ * @license LGPL The GNU Lesser GPL (LGPL) or an MIT-like license.
+ * @see     http://www.urbandictionary.com/
+ */
+
+use QueryPath\CSS\ParseException;
+use QueryPath\DOMQuery;
+use QueryPath\Exception;
+
+require_once __DIR__ . '/../../vendor/autoload.php';
+
+try {
+	// Try load the test.docx file, parse for text nodes and output with basic formatting
+	foreach (qp(docx2text('test.docx'), 'w|p') as $qp) {
+		/** @var $qp DOMQuery */
+		/** @var $qr DOMQuery */
+		foreach ($qp->find('w|r') as $qr) {
+			echo format($qr);
+		}
+
+		echo '<br />';
+	}
+} catch (Exception $e) {
+	die($e->getMessage());
+}
+
+/**
+ * Get the node text and apply basic formatting, if necessary
+ *
+ * @param DOMQuery $qp
+ *
+ * @return string
+ * @throws ParseException
+ * @throws Exception
+ */
+function format(DOMQuery $qp): string
+{
+	$text = $qp->find('w|t')->text() . ' ';
+
+	$text = checkUnderline($qp) ? sprintf('<u>%s</u>', $text) : $text;
+	$text = checkBold($qp) ? sprintf('<b>%s</b>', $text) : $text;
+
+	return $text;
+}
+
+/**
+ * Look for the <w:rPr><w:b></w:rPr> node to determine if the text is bolded
+ *
+ * @param DOMQuery $qp
+ *
+ * @return bool
+ * @throws ParseException
+ * @throws Exception
+ */
+function checkBold(DOMQuery $qp): bool
+{
+	return (bool) $qp->children('w|rPr')
+		->children('w|b')
+		->count();
+}
+
+/**
+ * Look for the <w:rPr><w:u></w:rPr> node to determine if the text is underlined
+ *
+ * @param DOMQuery $qp
+ *
+ * @return bool
+ * @throws ParseException
+ * @throws Exception
+ */
+function checkUnderline(DOMQuery $qp): bool
+{
+	return (bool) $qp->children('w|rPr')
+		->children('w|u')
+		->count();
+}
+
+/**
+ * Extract the text from a docx file
+ *
+ * @param string $archiveFile The path to the .docx file to extract information from
+ * @return string
+ */
+function docx2text(string $archiveFile): string
+{
+	$dataFile = 'word/document.xml';
+
+	if (!class_exists('ZipArchive', false)) {
+		throw new RuntimeException('ZipArchive extension must be enabled to parse .docx files');
+	}
+
+	$zip = new ZipArchive();
+	// Open received archive file
+	if (true !== $zip->open($archiveFile)) {
+		throw new RuntimeException('Could not open the file using ZipArchive: ' . $zip->getStatusString());
+	}
+
+	$data = '';
+	// Search for the docx data file
+	if (($index = $zip->locateName($dataFile)) !== false) {
+		$data = $zip->getFromIndex($index);
+	}
+
+	// Close zip to prevent memory leak
+	$zip->close();
+
+	return $data;
+}