| public static extractArgs ( $string, $include_null = TRUE, $context ) |
/**
* Lex an expression into SassScript tokens.
* @param string $string expression to lex
* @param SassContext $context the context in which the expression is lexed
* @return array tokens
*/
public function lex($string, $context)
{
// if it's already lexed, just return it as-is
if (is_object($string)) {
return array($string);
}
if (is_array($string)) {
return $string;
}
$tokens = array();
// whilst the string is not empty, split it into it's tokens.
while ($string !== false) {
if (($match = $this->isWhitespace($string)) !== false) {
$tokens[] = null;
} elseif (($match = SassScriptFunction::isa($string)) !== false) {
preg_match(SassScriptFunction::MATCH_FUNC, $match, $matches);
$args = array();
foreach (SassScriptFunction::extractArgs($matches[SassScriptFunction::ARGS], false, $context) as $key => $expression) {
$args[$key] = $this->parser->evaluate($expression, $context);
}
$tokens[] = new SassScriptFunction($matches[SassScriptFunction::NAME], $args);
} elseif (($match = SassBoolean::isa($string)) !== false) {
$tokens[] = new SassBoolean($match);
} elseif (($match = SassColour::isa($string)) !== false) {
$tokens[] = new SassColour($match);
} elseif (($match = SassNumber::isa($string)) !== false) {
$tokens[] = new SassNumber($match);
} elseif (($match = SassString::isa($string)) !== false) {
$stringed = new SassString($match);
if (strlen($stringed->quote) == 0 && SassList::isa($string) !== false && !preg_match("/^\\-\\w+\\-\\w+\$/", $stringed->value)) {
$tokens[] = new SassList($string);
} else {
$tokens[] = $stringed;
}
} elseif ($string == '()') {
$match = $string;
$tokens[] = new SassList($match);
} elseif (($match = SassScriptOperation::isa($string)) !== false) {
$tokens[] = new SassScriptOperation($match);
} elseif (($match = SassScriptVariable::isa($string)) !== false) {
$tokens[] = new SassScriptVariable($match);
} else {
$_string = $string;
$match = '';
while (strlen($_string) && !$this->isWhitespace($_string)) {
foreach (SassScriptOperation::$inStrOperators as $operator) {
if (substr($_string, 0, strlen($operator)) == $operator) {
break 2;
}
}
$match .= $_string[0];
$_string = substr($_string, 1);
}
$tokens[] = new SassString($match);
}
$string = substr($string, strlen($match));
}
return $tokens;
}
/**
* SassMixinDefinitionNode constructor.
* @param object source token
* @return SassMixinNode
*/
public function __construct($token)
{
parent::__construct($token);
preg_match(self::MATCH, $token->source, $matches);
$this->name = $matches[self::NAME];
if (isset($matches[self::ARGS])) {
$this->args = SassScriptFunction::extractArgs($matches[self::ARGS]);
}
}
/**
* SassMixinDefinitionNode constructor.
* @param object source token
* @return SassMixinDefinitionNode
*/
public function __construct($token)
{
preg_match(self::MATCH, $token->source, $matches);
parent::__construct($token);
if (empty($matches)) {
throw new SassMixinDefinitionNodeException('Invalid Mixin', $this);
}
$this->name = $matches[self::NAME];
if (isset($matches[self::ARGUMENTS])) {
$this->args = SassScriptFunction::extractArgs($matches[self::ARGUMENTS], true, new SassContext());
}
}
/**
* SassMixinDefinitionNode constructor.
* @param object source token
* @return SassMixinNode
*/
public function __construct($token)
{
parent::__construct($token);
preg_match(self::MATCH, $token->source, $matches);
if (!isset($matches[self::NAME])) {
throw new SassMixinNodeException('Invalid mixin invocation: ($token->source)', $this);
}
$this->name = $matches[self::NAME];
if (isset($matches[self::ARGS]) && strlen($matches[self::ARGS])) {
$this->args = SassScriptFunction::extractArgs($matches[self::ARGS], false);
}
}
/**
* SassMixinDefinitionNode constructor.
* @param object source token
* @return SassMixinDefinitionNode
*/
public function __construct($token)
{
// if ($token->level > 1) {
// throw new SassMixinDefinitionNodeException('Mixins can only be defined at root level. Token was set at level ' . $token->level, $token);
// }
preg_match(self::MATCH, $token->source, $matches);
parent::__construct($token);
if (empty($matches)) {
throw new SassMixinDefinitionNodeException('Invalid Mixin', $this);
}
$this->name = $matches[self::NAME];
if (isset($matches[self::ARGUMENTS])) {
$this->args = SassScriptFunction::extractArgs($matches[self::ARGUMENTS]);
}
}
/**
* Parse this node.
* Set passed arguments and any optional arguments not passed to their
* defaults, then render the children of the mixin definition.
* @param SassContext the context in which this node is parsed
* @return array the parsed node
*/
public function parse($pcontext)
{
$mixin = $pcontext->getMixin($this->name);
$context = new SassContext($pcontext);
$context->content = $this->children;
$argc = count($this->args);
$count = 0;
$args = SassScriptFunction::extractArgs($this->args, false, $context);
list($arguments) = SassScriptFunction::fill_parameters($mixin->args, $args, $context, $this);
$context->setVariables($arguments);
$children = array();
foreach ($mixin->children as $child) {
$child->parent = $this;
$children = array_merge($children, $child->parse($context));
}
// $context->merge();
return $children;
}
/**
* Lex an expression into SassScript tokens.
* @param string expression to lex
* @param SassContext the context in which the expression is lexed
* @return array tokens
*/
public function lex($string, $context)
{
$tokens = array();
while ($string !== false) {
if (($match = $this->isWhitespace($string)) !== false) {
$tokens[] = null;
} elseif (($match = SassScriptFunction::isa($string)) !== false) {
preg_match(SassScriptFunction::MATCH_FUNC, $match, $matches);
$args = array();
foreach (SassScriptFunction::extractArgs($matches[SassScriptFunction::ARGS]) as $expression) {
$args[] = $this->parser->evaluate($expression, $context);
}
$tokens[] = new SassScriptFunction($matches[SassScriptFunction::NAME], $args);
} elseif (($match = SassString::isa($string)) !== false) {
$tokens[] = new SassString($match);
} elseif (($match = SassBoolean::isa($string)) !== false) {
$tokens[] = new SassBoolean($match);
} elseif (($match = SassColour::isa($string)) !== false) {
$tokens[] = new SassColour($match);
} elseif (($match = SassNumber::isa($string)) !== false) {
$tokens[] = new SassNumber($match);
} elseif (($match = SassScriptOperation::isa($string)) !== false) {
$tokens[] = new SassScriptOperation($match);
} elseif (($match = SassScriptVariable::isa($string)) !== false) {
$tokens[] = new SassScriptVariable($match);
} else {
$_string = $string;
$match = '';
while (strlen($_string) && !$this->isWhitespace($_string)) {
foreach (SassScriptOperation::$inStrOperators as $operator) {
if (substr($_string, 0, strlen($operator)) == $operator) {
break 2;
}
}
$match .= $_string[0];
$_string = substr($_string, 1);
}
$tokens[] = new SassString($match);
}
$string = substr($string, strlen($match));
}
return $tokens;
}
