/**
* Parses the float types by looking for float expression.
*
* @param ezcTemplateCursor $cursor
* @return bool
*/
protected function parseCurrent(ezcTemplateCursor $cursor)
{
if (!$cursor->atEnd()) {
$matches = $cursor->pregMatch("#^(?:[0-9]+(([eE][+-]?[0-9]+)|((\\.[0-9]+)([eE][+-]?[0-9]+)?)))#");
if ($matches !== false) {
$float = new ezcTemplateLiteralTstNode($this->parser->source, $this->startCursor, $cursor);
$float->value = (double) $matches;
$this->value = $float->value;
$this->element = $float;
$this->appendElement($float);
return true;
}
}
return false;
}
/**
* Parses the integer types by looking for numerical characters.
*
* @param ezcTemplateCursor $cursor
* @return bool
*/
protected function parseCurrent(ezcTemplateCursor $cursor)
{
if (!$cursor->atEnd()) {
$matches = $cursor->pregMatch("#^-?[0-9]+#");
if ($matches !== false) {
$integer = new ezcTemplateLiteralTstNode($this->parser->source, $this->startCursor, $cursor);
$integer->value = (int) $matches;
$this->value = $integer->value;
$this->element = $integer;
$this->appendElement($integer);
return true;
}
}
return false;
}
/**
* Parses the identifier types by looking for allowed characters.
*
* @param ezcTemplateCursor $cursor
* @return bool
*/
protected function parseCurrent(ezcTemplateCursor $cursor)
{
if (!$cursor->atEnd()) {
$matches = $cursor->pregMatch("#^[a-zA-Z_][a-zA-Z0-9_]*#");
if ($matches !== false) {
$identifier = new ezcTemplateIdentifierTstNode($this->parser->source, $this->startCursor, $cursor);
$identifier->value = (string) $matches;
$this->identifierName = $identifier->value;
$this->element = $identifier;
$this->appendElement($identifier);
return true;
}
}
return false;
}
/**
* Parses the array types by looking for 'array(...)' and then using the
* generic expression parser (ezcTemplateExpressionSourceToTstParser) to fetch the
* keys and values.
*
* @param ezcTemplateCursor $cursor
* @return bool
*/
protected function parseCurrent(ezcTemplateCursor $cursor)
{
// skip whitespace and comments
if (!$this->findNextElement()) {
return false;
}
$name = $cursor->pregMatch("#^array[^\\w]#i", false);
if ($name === false) {
return false;
}
$lower = strtolower($name);
if ($name !== $lower) {
$this->findNonLowercase();
throw new ezcTemplateParserException($this->parser->source, $this->startCursor, $this->currentCursor, ezcTemplateSourceToTstErrorMessages::MSG_ARRAY_NOT_LOWERCASE);
}
$cursor->advance(5);
// skip whitespace and comments
$this->findNextElement();
if (!$cursor->match('(')) {
throw new ezcTemplateParserException($this->parser->source, $this->startCursor, $this->currentCursor, ezcTemplateSourceToTstErrorMessages::MSG_EXPECT_ROUND_BRACKET_OPEN);
}
$currentArray = array();
$currentKeys = array();
$expectItem = true;
$elementNumber = 0;
while (true) {
// skip whitespace and comments
if (!$this->findNextElement()) {
throw new ezcTemplateParserException($this->parser->source, $this->startCursor, $this->currentCursor, ezcTemplateSourceToTstErrorMessages::MSG_EXPECT_ROUND_BRACKET_CLOSE);
}
if ($cursor->current() == ')') {
$cursor->advance();
$array = new ezcTemplateLiteralArrayTstNode($this->parser->source, $this->startCursor, $cursor);
$array->keys = $currentKeys;
$array->value = $currentArray;
$this->element = $array;
$this->appendElement($array);
return true;
}
if (!$expectItem) {
throw new ezcTemplateParserException($this->parser->source, $this->startCursor, $this->currentCursor, ezcTemplateSourceToTstErrorMessages::MSG_EXPECT_ROUND_BRACKET_CLOSE_OR_COMMA);
}
// Check for type
if (!$expectItem || !$this->parseRequiredType('Expression')) {
throw new ezcTemplateParserException($this->parser->source, $this->startCursor, $this->currentCursor, ezcTemplateSourceToTstErrorMessages::MSG_EXPECT_LITERAL);
}
$this->findNextElement();
if ($cursor->match('=>')) {
// Found the array key. Store it, and continue with the search for the value.
$currentKeys[$elementNumber] = $this->lastParser->rootOperator;
$this->findNextElement();
// We have the key => value syntax so we need to find the value
if (!$this->parseRequiredType('Expression')) {
throw new ezcTemplateParserException($this->parser->source, $this->startCursor, $this->currentCursor, ezcTemplateSourceToTstErrorMessages::MSG_EXPECT_LITERAL);
}
// Store the value.
$currentArray[$elementNumber] = $this->lastParser->rootOperator;
$elementNumber++;
} else {
// Store the value.
$currentArray[$elementNumber] = $this->lastParser->rootOperator;
$elementNumber++;
}
if ($this->lastParser->rootOperator instanceof ezcTemplateModifyingOperatorTstNode) {
throw new ezcTemplateParserException($this->parser->source, $this->startCursor, $this->currentCursor, ezcTemplateSourceToTstErrorMessages::MSG_MODIFYING_EXPRESSION_NOT_ALLOWED);
}
$this->findNextElement();
// We allow a comma after the key/value even if there are no more
// entries. This is compatible with PHP syntax.
if ($cursor->match(',')) {
$this->findNextElement();
$expectItem = true;
} else {
$expectItem = false;
}
}
}
/**
* Parse a parameter
*
* @param ezcTemplateCursor $cursor
* @return bool
*/
protected function parseParameter($cursor)
{
// Without this, the expression parser keeps on reading.
if ($cursor->match(')', false)) {
return false;
}
$this->readingParameter = true;
$startCursor = clone $cursor;
$namedParameter = $cursor->pregMatch("#^[a-zA-Z_][a-zA-Z0-9_]*#");
if ($namedParameter !== false) {
$this->findNextElement();
if (!$cursor->match("=")) {
$namedParameter = false;
}
}
if ($namedParameter === false) {
$cursor->copy($startCursor);
}
// Check for expression, the parser will call self::atEnd() to check for end of expression.
$expressionStartCursor = clone $cursor;
$expressionParser = new ezcTemplateExpressionSourceToTstParser($this->parser, $this, null);
$expressionParser->allowIdentifier = true;
if (!$this->parseRequiredType($expressionParser) || $this->lastParser->currentOperator === null) {
return false;
}
$rootOperator = $this->lastParser->currentOperator;
if ($rootOperator instanceof ezcTemplateOperatorTstNode) {
$rootOperator = $rootOperator->getRoot();
}
if ($rootOperator instanceof ezcTemplateModifyingOperatorTstNode) {
throw new ezcTemplateParserException($this->parser->source, $this->startCursor, $this->currentCursor, sprintf(ezcTemplateSourceToTstErrorMessages::MSG_PARAMETER_CANNOT_BE_MODIFYING_BLOCK, $this->parameterCount));
}
if ($namedParameter !== false) {
if (isset($this->functionCall->parameters[$namedParameter])) {
throw new ezcTemplateParserException($this->parser->source, $this->startCursor, $this->currentCursor, sprintf(ezcTemplateSourceToTstErrorMessages::MSG_NAMED_PARAMETER_ALREADY_ASSIGNED, $namedParameter));
}
$this->functionCall->parameters[$namedParameter] = $rootOperator;
} else {
$this->functionCall->appendParameter($rootOperator);
}
$this->readingParameter = false;
return true;
}
