/**
* Zkompiluje blok
*
* @param Block|string|array
* @return void
*/
protected function compileBlock($block)
{
if ($block instanceof Block) {
if (count($block->properties) == 0) {
//zahoď prázdné bloky
return;
}
if ($block instanceof Rule) {
echo implode(',' . Compiler::NL, $block->selectors);
} elseif ($block instanceof FontFace) {
echo '@font-face';
} elseif ($block instanceof Media) {
echo '@media ' . $block->media[1];
} else {
throw new \Exception("Neimplementováno");
}
echo ' {' . Compiler::NL;
foreach ($block->properties as $property) {
if ($block instanceof Media) {
$this->compileBlock($property);
continue;
}
$value = $this->compileValue($property[2], TRUE);
if ($property[0] == Compiler::$prefixes['important']) {
$value .= ' !important';
} elseif ($property[0] == Compiler::$prefixes['raw']) {
if ($property[2][0] == 'string') {
$value = Compiler::stringDecode($value);
}
}
echo $property[1] . ': ' . $value . ';' . Compiler::NL;
}
echo '}' . Compiler::NL;
} elseif (is_string($block)) {
//surové CSS
echo $block;
} elseif (is_array($block) && $block[0] == 'charset' && $block[1][0] == 'string') {
//@charset
echo '@charset ' . $block[1][1] . ';' . Compiler::NL;
} elseif (is_array($block) && $block[0] == 'import' && $block[1][0] == 'string' && $block[2][0] == 'raw') {
//@import
echo '@import ' . $block[1][1] . ' ' . $block[2][1] . ';' . Compiler::NL;
} else {
throw new \Exception("Neimplementováno");
}
}
/**
* Výchozí funkce
*
* @return void
*/
protected function prepareFunctions()
{
$this->addFunction('iergba', function (array $value) {
if (isset($value[0]) && $value[0] == 'color') {
if ($value[4] == 1) {
return array('raw', sprintf('#%02x%02x%02x', $value[1], $value[2], $value[3]));
}
return array('raw', sprintf('#%02x%02x%02x%02x', $value[4] * 255, $value[1], $value[2], $value[3]));
}
});
$this->addFunction('raw', function (array $value) {
if (isset($value[0]) && $value[0] == 'string') {
return array('raw', Compiler::stringDecode($value[1]));
}
});
}
/**
* Vložení souboru
*
* @param string
* @param string
* @return void
*/
protected function callInclude(array $include)
{
$value = $this->reduceValue($include[2]);
if ($value[0] !== 'string') {
throw new CompileException("Název vkládaného souboru musí být řetězec");
}
$file = Compiler::stringDecode($value[1]);
$path = ($this->files->isEmpty() ? '' : dirname($this->files->top()) . DIRECTORY_SEPARATOR) . $file;
$extension = pathinfo($file, PATHINFO_EXTENSION);
if (!is_file($path) || !is_readable($path)) {
throw new CompileException("Soubor '{$path}' neexistuje nebo jej nelze přečíst");
} elseif ($extension == 'iss') {
$this->addFile($path);
try {
$tree = $this->parser->parse(file_get_contents($this->getFile()));
if ($include[3] !== NULL) {
$block = new Media($include[3], $include[4]);
$block->properties = $tree->properties;
$this->reduceBlock($block);
} else {
$this->reduceBlock($tree);
}
} catch (CompileException $e) {
throw $e->setFile($this->getFile());
}
$this->removeFile($path);
return;
} elseif ($extension == 'css') {
$this->addFile($path);
$context =& $this->getReducedContext();
$context[] = file_get_contents($path);
$this->removeFile($path);
return;
}
throw new CompileException("Soubor '{$path}' nemá koncovku .css ani .iss");
}
