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<?php
function sassy_compass__blank($object) {
if (is_object($object)) {
$object = $object->value;
}
$result = false;
if (is_bool($object)) {
$result = !$object;
}
if (is_string($object)) {
$result = strlen(trim($object, ' ,')) === 0;
}
return new SassBoolean($result);
}
function sassy_compass__compact() {
$sep = ', ';
$args = func_get_args();
$list = array();
foreach ($args as $k => $v) {
if (is_object($v)) {
$string = isset($v->value) ? $v->value : FALSE;
}
else {
$string = (string) $v;
}
if (empty($string) || $string == 'false') {
unset($args[$k]);
continue;
}
$list[] = $string;
}
return new SassString(implode($sep, $list));
}
function sassy_compass___compass_nth() {
$args = func_get_args();
$place = array_pop($args);
$list = array();
foreach ($args as $arg) {
$list = array_merge($list, sassy_compass__list($arg));
}
if ($place == 'first') {
$place = 0;
}
if ($place == 'last') {
$place = count($list) - 1;
}
if (isset($list[$place])) {
return current(SassScriptLexer::$instance
->lex($list[$place], new SassContext()));
}
return new SassBoolean(false);
}
function sassy_compass___compass_list() {
$args = func_get_args();
$list = array();
foreach ($args as $arg) {
$list = array_merge($list, sassy_compass__list($arg));
}
return new SassString(implode(', ', $list));
}
function sassy_compass___compass_space_list() {
$args = func_get_args();
$list = sassy_compass__list($args, ',');
return new SassString(implode(' ', $list));
}
function sassy_compass___compass_list_size() {
$args = func_get_args();
$list = sassy_compass__list($args, ',');
return new SassNumber(count($list));
}
function sassy_compass___compass_list_slice($list, $start, $end) {
$args = func_get_args();
$end = array_pop($args);
$start = array_pop($args);
$list = sassy_compass__list($args, ',');
return implode(',', array_slice($list, $start, $end));
}
function sassy_compass__first_value_of() {
$args = array();
$args[] = 'first';
return call_user_func_array('sassy_compass___compass_nth', $args);
}
function sassy_compass__list($list, $seperator = ',') {
if (is_object($list)) {
$list = $list->value;
}
if (is_array($list)) {
$newlist = array();
foreach ($list as $listlet) {
$newlist = array_merge($newlist, sassy_compass__list($listlet, $seperator));
}
$list = implode(', ', $newlist);
}
$out = array();
$size = 0;
$braces = 0;
$stack = '';
for ($i = 0; $i < strlen($list); $i++) {
$char = substr($list, $i, 1);
switch ($char) {
case '(':
$braces++;
$stack .= $char;
break;
case ')':
$braces--;
$stack .= $char;
break;
case $seperator:
if ($braces === 0) {
$out[] = $stack;
$stack = '';
$size++;
break;
}
default:
$stack .= $char;
}
}
$out[] = $stack;
return $out;
}
