private function prepareAttribute(PHPTAL_Php_CodeWriter $codewriter, $qname, $expression)
{
$tales_code = $this->extractEchoType($expression);
$code = $codewriter->evaluateExpression($tales_code);
// XHTML boolean attribute does not appear when empty or false
if (PHPTAL_Dom_Defs::getInstance()->isBooleanAttribute($qname)) {
// I don't want to mix code for boolean with chained executor
// so compile it again to simple expression
if (is_array($code)) {
$code = PHPTAL_Php_TalesInternal::compileToPHPExpression($tales_code);
}
return $this->prepareBooleanAttribute($codewriter, $qname, $code);
}
// if $code is an array then the attribute value is decided by a
// tales chained expression
if (is_array($code)) {
return $this->prepareChainedAttribute($codewriter, $qname, $code);
}
// i18n needs to read replaced value of the attribute, which is not possible if attribute is completely replaced with conditional code
if ($this->phpelement->hasAttributeNS('http://xml.zope.org/namespaces/i18n', 'attributes')) {
$this->prepareAttributeUnconditional($codewriter, $qname, $code);
} else {
$this->prepareAttributeConditional($codewriter, $qname, $code);
}
}
/**
* compile TALES expression according to current talesMode
* @return string with PHP code
*/
private function compileTalesToPHPExpression($expression)
{
if ($this->getTalesMode() === 'php') {
return PHPTAL_Php_TalesInternal::php($expression);
}
return PHPTAL_Php_TalesInternal::compileToPHPExpression($expression, false);
}
/**
* @param key - unescaped string (not PHP code) for the key
*/
private function _getTranslationCode(PHPTAL_Php_CodeWriter $codewriter, $key)
{
$code = '';
if (preg_match_all('/\\$\\{(.*?)\\}/', $key, $m)) {
array_shift($m);
$m = array_shift($m);
foreach ($m as $name) {
$code .= "\n" . '$_translator->setVar(' . $codewriter->str($name) . ',' . PHPTAL_Php_TalesInternal::compileToPHPExpression($name) . ');';
// allow more complex TAL expressions
}
$code .= "\n";
}
// notice the false boolean which indicate that the html is escaped
// elsewhere looks like an hack doesn't it ? :)
$code .= 'echo ' . $codewriter->escapeCode('$_translator->translate(' . $codewriter->str($key) . ', false)');
return $code;
}
/**
* translates TALES expression with alternatives into single PHP expression.
* Identical to phptal_tales() for singular expressions.
*
* Please use this function rather than PHPTAL_Php_TalesInternal methods.
*
* @see PHPTAL_Php_TalesInternal::compileToPHPStatements()
* @return string
*/
function phptal_tale($expression, $nothrow = false)
{
return PHPTAL_Php_TalesInternal::compileToPHPExpression($expression, $nothrow);
}
