/**
* @throws SyntaxErrorException
*/
public function render()
{
if (!$this->_containsInterpolation($this->_text)) {
return $this->_text;
}
$pieces = array();
$glueL = $this->_phpCtx ? '.' : '<?php echo ';
$glueR = $this->_phpCtx ? '.' : ' ?>';
$encapsL = $this->_phpCtx ? '(' : '';
$encapsR = $this->_phpCtx ? ')' : ';';
$s = new StringScanner($this->_text);
$quote = $s->scan(StringScanner::rQUOTE);
while (!$s->eos) {
trim($s->scan('/(.*?)(?<!\\\\)\\#\\{/sm'));
if (!empty($s[1])) {
$pieces[] = $quote . $s[1] . $quote;
}
trim($s->scan('/(.*?)(?<!\\\\)}/sm'));
if (!empty($s[1])) {
if ($this->_containsInterpolation($s[1])) {
throw new SyntaxErrorException("Nesting interpolation is not allowed: " . $this->_text);
}
$pieces[] = $glueL;
$pieces[] = $encapsL . $s[1] . $encapsR;
$pieces[] = $glueR;
} else {
throw new SyntaxErrorException("Unclosed interpolation in: " . $this->_text);
}
if (!$this->_containsInterpolation($s->rest)) {
$rest = trim($s->scan('/.*/sm'), " {$quote}");
if (!empty($rest)) {
$pieces[] = $quote . $rest . $quote;
}
}
}
if ($this->_phpCtx) {
// can't have glue on the edges
if ($pieces[0] == $glueL) {
array_shift($pieces);
}
// can't have glue on the edges
if ($pieces[count($pieces) - 1] == $glueR) {
array_pop($pieces);
}
// don't nee the parenteses if it is only one thing
if (count($pieces) == 1) {
$pieces[0] = s($pieces[0])->trimBalanced('(', ')');
}
}
return join($pieces);
}
public function testUnscan()
{
$s = new StringScanner('test string');
$this->assertEquals('test', $s->scan('/\\w+/'));
$s->unscan();
$this->assertEquals('te', $s->scan('/../'));
$this->assertNull($s->scan('/\\d/'));
try {
$s->unscan();
# ScanError: unscan failed: previous match record not exist
} catch (Exception $e) {
}
$this->assertNotNull($e);
$s->reset();
$this->assertEquals('test ', $s->scan('/\\w+\\s/'));
$this->assertEquals('st', $s->scan('/st/'));
$this->assertEquals('ri', $s->scan('/ri/'));
$s->unscan();
$this->assertEquals(7, $s->pos);
$this->assertEquals('ri', $s->scan('/ri/'));
}
function testOtag()
{
$sc = new StringScanner("{{foo}}{{bla}}");
$res = $sc->scan("{{");
$this->assertEqual($res, "{{");
$this->assertEqual($sc->rest(), "foo}}{{bla}}");
$res = $sc->scan("[#^\\/=!<>^{]");
$this->assertEqual($res, null);
$this->assertEqual($sc->rest(), "foo}}{{bla}}");
}
/** Try to find static text. **/
public function scanText()
{
/* look for next opening tag. */
$text = $this->scanner->scanUntilExclusive(\StringScanner::escape($this->otag));
if ($text === null) {
/* Couldn't find any otag, which means the rest is just static text. */
$text = $this->scanner->rest();
$this->scanner->clear();
}
if (!empty($text)) {
$prev = end($this->result);
/* remove previous standalone section if found */
if ($prev[0] === ":standalone") {
array_pop($this->result);
}
/* split text into lines, so that indentation works. */
foreach (preg_split('/(\\n)/', $text, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY) as $str) {
if ($str === "\n") {
array_push($this->result, array(":newline"));
} else {
$this->addStatic($str);
}
}
}
}
private function _interpolate($str)
{
if (!$this->_containsInterpolation($str)) {
return $str;
}
$nStr = '';
$s = new StringScanner($str);
$quote = $s->check(StringScanner::rQUOTE);
// If it doesn't starts with a quote, it CAN'T be inside php context
if (empty($quote) || !s($str)->endsWith($quote)) {
$int = new Interpolation($str);
return $int->render();
}
$int = new Interpolation($str, true);
return $int->render();
}
