/**
* @testdox minify() tests
* @dataProvider getMinifyTests
*/
public function testMinify($original, $expected)
{
if ($expected instanceof Exception) {
$this->setExpectedException(get_class($expected), $expected->getMessage());
}
$this->assertSame($expected, XPathHelper::minify($original));
}
/**
* Remove extraneous space in XPath expressions used in XSL elements
*
* @param DOMElement $template <xsl:template/> node
* @return void
*/
public function normalize(DOMElement $template)
{
$xpath = new DOMXPath($template->ownerDocument);
// Get all the "match", "select" and "test" attributes of XSL elements, whose value contains
// a space
$query = '//xsl:*/@*[contains(., " ")][contains("matchselectest", name())]';
foreach ($xpath->query($query) as $attribute) {
$attribute->parentNode->setAttribute($attribute->nodeName, XPathHelper::minify($attribute->nodeValue));
}
// Get all the attributes of non-XSL elements, whose value contains a space
$query = '//*[namespace-uri() != "' . self::XMLNS_XSL . '"]' . '/@*[contains(., " ")]';
foreach ($xpath->query($query) as $attribute) {
AVTHelper::replace($attribute, function ($token) {
if ($token[0] === 'expression') {
$token[1] = XPathHelper::minify($token[1]);
}
return $token;
});
}
}
/**
* Generate the dynamic template that renders all emoticons
*
* @return string
*/
public function getTemplate()
{
// Build the <xsl:choose> node
$xsl = '<xsl:choose>';
// First, test whether the emoticon should be rendered as text if applicable
if (!empty($this->notIfCondition)) {
$xsl .= '<xsl:when test="' . htmlspecialchars($this->notIfCondition) . '">' . '<xsl:value-of select="."/>' . '</xsl:when>' . '<xsl:otherwise>' . '<xsl:choose>';
}
// Iterate over codes, create an <xsl:when> for each emote
foreach ($this->collection as $code => $template) {
$xsl .= '<xsl:when test=".=' . htmlspecialchars(XPathHelper::export($code)) . '">' . $template . '</xsl:when>';
}
// Finish it with an <xsl:otherwise> that displays the unknown codes as text
$xsl .= '<xsl:otherwise><xsl:value-of select="."/></xsl:otherwise>';
// Close the emote switch
$xsl .= '</xsl:choose>';
// Close the "notIf" condition if applicable
if (!empty($this->notIfCondition)) {
$xsl .= '</xsl:otherwise></xsl:choose>';
}
return $xsl;
}
public function getTemplate()
{
$xsl = '<xsl:choose>';
if (!empty($this->notIfCondition)) {
$xsl .= '<xsl:when test="' . \htmlspecialchars($this->notIfCondition) . '"><xsl:value-of select="."/></xsl:when><xsl:otherwise><xsl:choose>';
}
foreach ($this->collection as $code => $template) {
$xsl .= '<xsl:when test=".=' . \htmlspecialchars(XPathHelper::export($code)) . '">' . $template . '</xsl:when>';
}
$xsl .= '<xsl:otherwise><xsl:value-of select="."/></xsl:otherwise>';
$xsl .= '</xsl:choose>';
if (!empty($this->notIfCondition)) {
$xsl .= '</xsl:otherwise></xsl:choose>';
}
return $xsl;
}
/**
* {@inheritdoc}
*/
protected function isExpressionSafe($expr)
{
return XPathHelper::isExpressionNumeric($expr);
}
/**
* Return a list of parameters in use in given XSL
*
* @param string $xsl XSL source
* @return array Alphabetically sorted list of unique parameter names
*/
public static function getParametersFromXSL($xsl)
{
$paramNames = [];
// Wrap the XSL in boilerplate code because it might not have a root element
$xsl = '<xsl:stylesheet xmlns:xsl="' . self::XMLNS_XSL . '">' . '<xsl:template>' . $xsl . '</xsl:template>' . '</xsl:stylesheet>';
$dom = new DOMDocument();
$dom->loadXML($xsl);
$xpath = new DOMXPath($dom);
// Start by collecting XPath expressions in XSL elements
$query = '//xsl:*/@match | //xsl:*/@select | //xsl:*/@test';
foreach ($xpath->query($query) as $attribute) {
foreach (XPathHelper::getVariables($attribute->value) as $varName) {
// Test whether this is the name of a local variable
$varQuery = 'ancestor-or-self::*/' . 'preceding-sibling::xsl:variable[@name="' . $varName . '"]';
if (!$xpath->query($varQuery, $attribute)->length) {
$paramNames[] = $varName;
}
}
}
// Collecting XPath expressions in attribute value templates
$query = '//*[namespace-uri() != "' . self::XMLNS_XSL . '"]' . '/@*[contains(., "{")]';
foreach ($xpath->query($query) as $attribute) {
$tokens = AVTHelper::parse($attribute->value);
foreach ($tokens as $token) {
if ($token[0] !== 'expression') {
continue;
}
foreach (XPathHelper::getVariables($token[1]) as $varName) {
// Test whether this is the name of a local variable
$varQuery = 'ancestor-or-self::*/' . 'preceding-sibling::xsl:variable[@name="' . $varName . '"]';
if (!$xpath->query($varQuery, $attribute)->length) {
$paramNames[] = $varName;
}
}
}
}
// Dedupe and sort names
$paramNames = array_unique($paramNames);
sort($paramNames);
return $paramNames;
}
