/**
* Generate an XSL stylesheet based on given rendering configuration
*
* @param Rendering $rendering
* @return string
*/
public function getXSL(Rendering $rendering)
{
$groupedTemplates = [];
$prefixes = [];
$templates = $rendering->getTemplates();
// Replace simple templates if there are at least 3 of them
TemplateHelper::replaceHomogeneousTemplates($templates, 3);
// Group tags with identical templates together
foreach ($templates as $tagName => $template) {
$template = $this->optimizer->optimizeTemplate($template);
$groupedTemplates[$template][] = $tagName;
// Record the tag's prefix if applicable
$pos = strpos($tagName, ':');
if ($pos !== false) {
$prefixes[substr($tagName, 0, $pos)] = 1;
}
}
// Declare all the namespaces in use at the top
$xsl = '<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"';
// Append the namespace declarations to the stylesheet
$prefixes = array_keys($prefixes);
sort($prefixes);
foreach ($prefixes as $prefix) {
$xsl .= ' xmlns:' . $prefix . '="urn:s9e:TextFormatter:' . $prefix . '"';
}
/**
* Exclude those prefixes to keep the HTML neat
*
* @link http://lenzconsulting.com/namespaces-in-xslt/#exclude-result-prefixes
*/
if (!empty($prefixes)) {
$xsl .= ' exclude-result-prefixes="' . implode(' ', $prefixes) . '"';
}
// Start the stylesheet with the boilerplate stuff
$xsl .= '><xsl:output method="html" encoding="utf-8" indent="no"';
$xsl .= '/>';
// Add stylesheet parameters
foreach ($rendering->getAllParameters() as $paramName => $paramValue) {
$xsl .= '<xsl:param name="' . htmlspecialchars($paramName) . '"';
if ($paramValue === '') {
$xsl .= '/>';
} else {
$xsl .= '>' . htmlspecialchars($paramValue) . '</xsl:param>';
}
}
// Add templates
foreach ($groupedTemplates as $template => $tagNames) {
// Open the template element
$xsl .= '<xsl:template match="' . implode('|', $tagNames) . '"';
// Make it a self-closing element if the template is empty
if ($template === '') {
$xsl .= '/>';
} else {
$xsl .= '>' . $template . '</xsl:template>';
}
}
$xsl .= '</xsl:stylesheet>';
return $xsl;
}
public function getXSL(Rendering $rendering)
{
$groupedTemplates = array();
$prefixes = array();
$templates = $rendering->getTemplates();
TemplateHelper::replaceHomogeneousTemplates($templates, 3);
foreach ($templates as $tagName => $template) {
$template = $this->optimizer->optimizeTemplate($template);
$groupedTemplates[$template][] = $tagName;
$pos = \strpos($tagName, ':');
if ($pos !== \false) {
$prefixes[\substr($tagName, 0, $pos)] = 1;
}
}
$xsl = '<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"';
$prefixes = \array_keys($prefixes);
\sort($prefixes);
foreach ($prefixes as $prefix) {
$xsl .= ' xmlns:' . $prefix . '="urn:s9e:TextFormatter:' . $prefix . '"';
}
if (!empty($prefixes)) {
$xsl .= ' exclude-result-prefixes="' . \implode(' ', $prefixes) . '"';
}
$xsl .= '><xsl:output method="html" encoding="utf-8" indent="no"';
$xsl .= '/>';
foreach ($rendering->getAllParameters() as $paramName => $paramValue) {
$xsl .= '<xsl:param name="' . \htmlspecialchars($paramName) . '"';
if ($paramValue === '') {
$xsl .= '/>';
} else {
$xsl .= '>' . \htmlspecialchars($paramValue) . '</xsl:param>';
}
}
foreach ($groupedTemplates as $template => $tagNames) {
$xsl .= '<xsl:template match="' . \implode('|', $tagNames) . '"';
if ($template === '') {
$xsl .= '/>';
} else {
$xsl .= '>' . $template . '</xsl:template>';
}
}
$xsl .= '</xsl:stylesheet>';
return $xsl;
}
/**
* Generate the source for a PHP class that renders an intermediate representation according to
* given rendering configuration
*
* @param Rendering $rendering
* @return string
*/
public function generate(Rendering $rendering)
{
// Copy some options to the serializer
$this->serializer->useMultibyteStringFunctions = $this->useMultibyteStringFunctions;
// Gather templates and optimize simple templates
$templates = $rendering->getTemplates();
// Group templates by content to deduplicate them
$groupedTemplates = [];
foreach ($templates as $tagName => $template) {
$groupedTemplates[$template][] = $tagName;
}
// Record whether the template has a <xsl:apply-templates/> with a select attribute
$hasApplyTemplatesSelect = false;
// Assign a branch number to each unique template and record the value for each tag
$tagBranch = 0;
$tagBranches = [];
// Store the compiled template for each branch
$compiledTemplates = [];
// Other branch tables
$branchTables = [];
// Parse each template and serialize it to PHP
foreach ($groupedTemplates as $template => $tagNames) {
// Parse the template
$ir = TemplateParser::parse($template);
// Test whether this template uses an <xsl:apply-templates/> element with a select
if (!$hasApplyTemplatesSelect) {
foreach ($ir->getElementsByTagName('applyTemplates') as $applyTemplates) {
if ($applyTemplates->hasAttribute('select')) {
$hasApplyTemplatesSelect = true;
}
}
}
// Serialize the representation to PHP
$templateSource = $this->serializer->serialize($ir->documentElement);
if (isset($this->optimizer)) {
$templateSource = $this->optimizer->optimize($templateSource);
}
// Record the branch tables used in this template
$branchTables += $this->serializer->branchTables;
// Record the source for this branch number and assign this number to each tag
$compiledTemplates[$tagBranch] = $templateSource;
foreach ($tagNames as $tagName) {
$tagBranches[$tagName] = $tagBranch;
}
++$tagBranch;
}
// Unset the vars we don't need anymore
unset($groupedTemplates, $ir, $quickRender);
// Store the compiled template if we plan to create a Quick renderer
$quickSource = false;
if ($this->enableQuickRenderer) {
$quickRender = [];
foreach ($tagBranches as $tagName => $tagBranch) {
$quickRender[$tagName] = $compiledTemplates[$tagBranch];
}
$quickSource = Quick::getSource($quickRender);
unset($quickRender);
}
// Coalesce all the compiled templates
$templatesSource = Quick::generateConditionals('$tb', $compiledTemplates);
unset($compiledTemplates);
// Test whether any templates needs an XPath engine
if ($hasApplyTemplatesSelect) {
$needsXPath = true;
} elseif (strpos($templatesSource, '$this->getParamAsXPath') !== false) {
$needsXPath = true;
} elseif (strpos($templatesSource, '$this->xpath') !== false) {
$needsXPath = true;
} else {
$needsXPath = false;
}
// Start the code right after the class name, we'll prepend the header when we're done
$php = [];
$php[] = ' extends \\s9e\\TextFormatter\\Renderer';
$php[] = '{';
$php[] = ' protected $params=' . self::export($rendering->getAllParameters()) . ';';
$php[] = ' protected static $tagBranches=' . self::export($tagBranches) . ';';
foreach ($branchTables as $varName => $branchTable) {
$php[] = ' protected static $' . $varName . '=' . self::export($branchTable) . ';';
}
if ($needsXPath) {
$php[] = ' protected $xpath;';
}
$php[] = ' public function __sleep()';
$php[] = ' {';
$php[] = ' $props = get_object_vars($this);';
$php[] = "\t\tunset(\$props['out'], \$props['proc'], \$props['source']" . ($needsXPath ? ", \$props['xpath']" : '') . ');';
$php[] = ' return array_keys($props);';
$php[] = ' }';
$php[] = ' public function renderRichText($xml)';
$php[] = ' {';
if ($quickSource !== false) {
// Try the Quick renderer first and if anything happens just keep going with the normal
// rendering
$php[] = ' if (!isset($this->quickRenderingTest) || !preg_match($this->quickRenderingTest, $xml))';
$php[] = ' {';
$php[] = ' try';
$php[] = ' {';
$php[] = ' return $this->renderQuick($xml);';
$php[] = ' }';
$php[] = ' catch (\\Exception $e)';
$php[] = ' {';
$php[] = ' }';
$php[] = ' }';
}
$php[] = ' $dom = $this->loadXML($xml);';
if ($needsXPath) {
$php[] = ' $this->xpath = new \\DOMXPath($dom);';
}
$php[] = "\t\t\$this->out = '';";
$php[] = ' $this->at($dom->documentElement);';
if ($needsXPath) {
$php[] = ' $this->xpath = null;';
}
$php[] = ' return $this->out;';
$php[] = ' }';
if ($hasApplyTemplatesSelect) {
$php[] = ' protected function at(\\DOMNode $root, $xpath = null)';
} else {
$php[] = ' protected function at(\\DOMNode $root)';
}
$php[] = ' {';
$php[] = ' if ($root->nodeType === 3)';
$php[] = ' {';
$php[] = ' $this->out .= htmlspecialchars($root->textContent,' . ENT_NOQUOTES . ');';
$php[] = ' }';
$php[] = ' else';
$php[] = ' {';
if ($hasApplyTemplatesSelect) {
$php[] = ' foreach (isset($xpath) ? $this->xpath->query($xpath, $root) : $root->childNodes as $node)';
} else {
$php[] = ' foreach ($root->childNodes as $node)';
}
$php[] = ' {';
$php[] = ' if (!isset(self::$tagBranches[$node->nodeName]))';
$php[] = ' {';
$php[] = ' $this->at($node);';
$php[] = ' }';
$php[] = ' else';
$php[] = ' {';
$php[] = ' $tb = self::$tagBranches[$node->nodeName];';
$php[] = ' ' . $templatesSource;
$php[] = ' }';
$php[] = ' }';
$php[] = ' }';
$php[] = ' }';
// Add the getParamAsXPath() method if necessary
if (strpos($templatesSource, '$this->getParamAsXPath') !== false) {
$php[] = ' protected function getParamAsXPath($k)';
$php[] = ' {';
$php[] = ' if (!isset($this->params[$k]))';
$php[] = ' {';
$php[] = ' return "\'\'";';
$php[] = ' }';
$php[] = ' $str = $this->params[$k];';
$php[] = ' if (strpos($str, "\'") === false)';
$php[] = ' {';
$php[] = ' return "\'$str\'";';
$php[] = ' }';
$php[] = ' if (strpos($str, \'"\') === false)';
$php[] = ' {';
$php[] = ' return "\\"$str\\"";';
$php[] = ' }';
$php[] = ' $toks = [];';
$php[] = ' $c = \'"\';';
$php[] = ' $pos = 0;';
$php[] = ' while ($pos < strlen($str))';
$php[] = ' {';
$php[] = ' $spn = strcspn($str, $c, $pos);';
$php[] = ' if ($spn)';
$php[] = ' {';
$php[] = ' $toks[] = $c . substr($str, $pos, $spn) . $c;';
$php[] = ' $pos += $spn;';
$php[] = ' }';
$php[] = ' $c = ($c === \'"\') ? "\'" : \'"\';';
$php[] = ' }';
$php[] = ' return \'concat(\' . implode(\',\', $toks) . \')\';';
$php[] = ' }';
}
// Append the Quick renderer if applicable
if ($quickSource !== false) {
$php[] = $quickSource;
}
// Close the class definition
$php[] = '}';
// Assemble the source
$php = implode("\n", $php);
// Finally, optimize the control structures
if (isset($this->controlStructuresOptimizer)) {
$php = $this->controlStructuresOptimizer->optimize($php);
}
// Generate a name for that class if necessary, and save it
$className = isset($this->className) ? $this->className : $this->defaultClassPrefix . sha1($php);
$this->lastClassName = $className;
// Prepare the header
$header = "\n" . "/**\n" . "* @package s9e\\TextFormatter\n" . "* @copyright Copyright (c) 2010-2015 The s9e Authors\n" . "* @license http://www.opensource.org/licenses/mit-license.php The MIT License\n" . "*/\n";
// Declare the namespace and class name
$pos = strrpos($className, '\\');
if ($pos !== false) {
$header .= 'namespace ' . substr($className, 0, $pos) . ";\n\n";
$className = substr($className, 1 + $pos);
}
// Prepend the header and the class name
$php = $header . 'class ' . $className . $php;
return $php;
}
public function generate(Rendering $rendering)
{
$this->serializer->useMultibyteStringFunctions = $this->useMultibyteStringFunctions;
$templates = $rendering->getTemplates();
$groupedTemplates = array();
foreach ($templates as $tagName => $template) {
$groupedTemplates[$template][] = $tagName;
}
$hasApplyTemplatesSelect = \false;
$tagBranch = 0;
$tagBranches = array();
$compiledTemplates = array();
$branchTables = array();
foreach ($groupedTemplates as $template => $tagNames) {
$ir = TemplateParser::parse($template);
if (!$hasApplyTemplatesSelect) {
foreach ($ir->getElementsByTagName('applyTemplates') as $applyTemplates) {
if ($applyTemplates->hasAttribute('select')) {
$hasApplyTemplatesSelect = \true;
}
}
}
$templateSource = $this->serializer->serialize($ir->documentElement);
if (isset($this->optimizer)) {
$templateSource = $this->optimizer->optimize($templateSource);
}
$branchTables += $this->serializer->branchTables;
$compiledTemplates[$tagBranch] = $templateSource;
foreach ($tagNames as $tagName) {
$tagBranches[$tagName] = $tagBranch;
}
++$tagBranch;
}
unset($groupedTemplates, $ir, $quickRender);
$quickSource = \false;
if ($this->enableQuickRenderer) {
$quickRender = array();
foreach ($tagBranches as $tagName => $tagBranch) {
$quickRender[$tagName] = $compiledTemplates[$tagBranch];
}
$quickSource = Quick::getSource($quickRender);
unset($quickRender);
}
$templatesSource = Quick::generateConditionals('$tb', $compiledTemplates);
unset($compiledTemplates);
if ($hasApplyTemplatesSelect) {
$needsXPath = \true;
} elseif (\strpos($templatesSource, '$this->getParamAsXPath') !== \false) {
$needsXPath = \true;
} elseif (\strpos($templatesSource, '$this->xpath') !== \false) {
$needsXPath = \true;
} else {
$needsXPath = \false;
}
$php = array();
$php[] = ' extends \\s9e\\TextFormatter\\Renderer';
$php[] = '{';
$php[] = ' protected $params=' . self::export($rendering->getAllParameters()) . ';';
$php[] = ' protected static $tagBranches=' . self::export($tagBranches) . ';';
foreach ($branchTables as $varName => $branchTable) {
$php[] = ' protected static $' . $varName . '=' . self::export($branchTable) . ';';
}
if ($needsXPath) {
$php[] = ' protected $xpath;';
}
$php[] = ' public function __sleep()';
$php[] = ' {';
$php[] = ' $props = get_object_vars($this);';
$php[] = "\t\tunset(\$props['out'], \$props['proc'], \$props['source']" . ($needsXPath ? ", \$props['xpath']" : '') . ');';
$php[] = ' return array_keys($props);';
$php[] = ' }';
$php[] = ' public function renderRichText($xml)';
$php[] = ' {';
if ($quickSource !== \false) {
$php[] = ' if (!isset($this->quickRenderingTest) || !preg_match($this->quickRenderingTest, $xml))';
$php[] = ' {';
$php[] = ' try';
$php[] = ' {';
$php[] = ' return $this->renderQuick($xml);';
$php[] = ' }';
$php[] = ' catch (\\Exception $e)';
$php[] = ' {';
$php[] = ' }';
$php[] = ' }';
}
$php[] = ' $dom = $this->loadXML($xml);';
if ($needsXPath) {
$php[] = ' $this->xpath = new \\DOMXPath($dom);';
}
$php[] = "\t\t\$this->out = '';";
$php[] = ' $this->at($dom->documentElement);';
if ($needsXPath) {
$php[] = ' $this->xpath = null;';
}
$php[] = ' return $this->out;';
$php[] = ' }';
if ($hasApplyTemplatesSelect) {
$php[] = ' protected function at(\\DOMNode $root, $xpath = null)';
} else {
$php[] = ' protected function at(\\DOMNode $root)';
}
$php[] = ' {';
$php[] = ' if ($root->nodeType === 3)';
$php[] = ' {';
$php[] = ' $this->out .= htmlspecialchars($root->textContent,' . \ENT_NOQUOTES . ');';
$php[] = ' }';
$php[] = ' else';
$php[] = ' {';
if ($hasApplyTemplatesSelect) {
$php[] = ' foreach (isset($xpath) ? $this->xpath->query($xpath, $root) : $root->childNodes as $node)';
} else {
$php[] = ' foreach ($root->childNodes as $node)';
}
$php[] = ' {';
$php[] = ' if (!isset(self::$tagBranches[$node->nodeName]))';
$php[] = ' {';
$php[] = ' $this->at($node);';
$php[] = ' }';
$php[] = ' else';
$php[] = ' {';
$php[] = ' $tb = self::$tagBranches[$node->nodeName];';
$php[] = ' ' . $templatesSource;
$php[] = ' }';
$php[] = ' }';
$php[] = ' }';
$php[] = ' }';
if (\strpos($templatesSource, '$this->getParamAsXPath') !== \false) {
$php[] = ' protected function getParamAsXPath($k)';
$php[] = ' {';
$php[] = ' if (!isset($this->params[$k]))';
$php[] = ' {';
$php[] = ' return "\'\'";';
$php[] = ' }';
$php[] = ' $str = $this->params[$k];';
$php[] = ' if (strpos($str, "\'") === false)';
$php[] = ' {';
$php[] = ' return "\'$str\'";';
$php[] = ' }';
$php[] = ' if (strpos($str, \'"\') === false)';
$php[] = ' {';
$php[] = ' return "\\"$str\\"";';
$php[] = ' }';
$php[] = ' $toks = array();';
$php[] = ' $c = \'"\';';
$php[] = ' $pos = 0;';
$php[] = ' while ($pos < strlen($str))';
$php[] = ' {';
$php[] = ' $spn = strcspn($str, $c, $pos);';
$php[] = ' if ($spn)';
$php[] = ' {';
$php[] = ' $toks[] = $c . substr($str, $pos, $spn) . $c;';
$php[] = ' $pos += $spn;';
$php[] = ' }';
$php[] = ' $c = ($c === \'"\') ? "\'" : \'"\';';
$php[] = ' }';
$php[] = ' return \'concat(\' . implode(\',\', $toks) . \')\';';
$php[] = ' }';
}
if ($quickSource !== \false) {
$php[] = $quickSource;
}
$php[] = '}';
$php = \implode("\n", $php);
if (isset($this->controlStructuresOptimizer)) {
$php = $this->controlStructuresOptimizer->optimize($php);
}
$className = isset($this->className) ? $this->className : $this->defaultClassPrefix . \sha1($php);
$this->lastClassName = $className;
$header = "\n/**\n* @package s9e\\TextFormatter\n* @copyright Copyright (c) 2010-2016 The s9e Authors\n* @license http://www.opensource.org/licenses/mit-license.php The MIT License\n*/\n";
$pos = \strrpos($className, '\\');
if ($pos !== \false) {
$header .= 'namespace ' . \substr($className, 0, $pos) . ";\n\n";
$className = \substr($className, 1 + $pos);
}
$php = $header . 'class ' . $className . $php;
return $php;
}