public function optimize(Renderer $renderer, Filter $node, $options)
{
$inserts = array();
$content = '';
foreach ($node->getChilds() as $child) {
foreach ($child->getContent()->getChilds() as $item) {
if ($item instanceof Text) {
$content .= $item->getContent();
} else {
$hash = md5(mt_rand());
$inserts[$hash] = $item;
$content .= $hash;
}
}
$content .= "\n";
}
$string = new InterpolatedString(array());
$result = $this->filter($content, array(), array());
foreach ($inserts as $hash => $insert) {
$parts = explode($hash, $result, 2);
$string->addChild(new Text(array(), $parts[0]));
$string->addChild($insert);
$result = $parts[1];
}
$string->addChild(new Text(array(), $result));
$string->accept($renderer);
}
protected function mergeInto(InterpolatedString $dest, $src)
{
if ($src instanceof InterpolatedString) {
foreach ($src->getChilds() as $child) {
$dest->addChild($child);
}
} elseif ($src instanceof Text || $src instanceof Insert) {
$dest->addChild($src);
} else {
return false;
}
}
public function enterInterpolatedStringChilds(InterpolatedString $node)
{
$n = 0;
foreach ($node->getChilds() as $child) {
if (0 !== $n) {
$this->betweenInterpolatedStringChilds($node);
}
$child->accept($this);
++$n;
}
return false;
}
protected function parseInterpolatedString($buf, $quoted = true)
{
if ($quoted && !$buf->match('/"/A', $match)) {
$this->syntaxErrorExpected($buf, 'double quoted string');
}
$node = new InterpolatedString($buf->getPosition());
if ($quoted) {
$stringRegex = '/(
[^\\#"\\\\]+ # anything without hash or " or \\
|\\\\["\\\\] # or escaped quote slash
|\\#(?!\\{) # or hash, but not followed by {
)+/Ax';
} else {
$stringRegex = '/(
[^\\#]+ # anything without hash
|\\#(?!\\{) # or hash, but not followed by {
)+/Ax';
}
do {
if ($buf->match($stringRegex, $match)) {
$text = $match[0];
if ($quoted) {
// strip slashes
$text = preg_replace('/\\\\(["\\\\])/', '\\1', $match[0]);
}
$text = new Text($match['pos'][0], $text);
$node->addChild($text);
} else {
if ($expr = $this->parseInterpolation($buf)) {
$node->addChild($expr);
} else {
if ($quoted && $buf->match('/"/A')) {
break;
} else {
if (!$quoted && $buf->match('/$/A')) {
break;
} else {
$this->syntaxErrorExpected($buf, 'string or #{...}');
}
}
}
}
} while (true);
// ensure that the InterpolatedString has at least one child
if (0 === count($node->getChilds())) {
$text = new Text($buf->getPosition(), '');
$node->addChild($text);
}
return $node;
}
public function leaveInterpolatedString(InterpolatedString $node)
{
if (!$this->isEchoMode() && 1 < count($node->getChilds())) {
$this->raw(')');
}
}
protected function parseInterpolatedString(InterpolatedString $node)
{
$content = '';
foreach ($node->getChilds() as $child) {
if ($child instanceof Text) {
$content .= $child->getContent();
} else {
throw new SnipCallerAttriSyntaxException(sprintf('attri InterpolatedString type value should be made of Text (InlineSnipCaller is subclass of Text), %s given ', get_class($child)));
}
}
return $content;
}