/**
* Convert template to PHP code
*
* @throws CompileException
*/
public function compile()
{
$end = $pos = 0;
foreach ($this->_fenom->getPreFilters() as $filter) {
$this->_src = call_user_func($filter, $this, $this->_src);
}
while (($start = strpos($this->_src, '{', $pos)) !== false) {
// search open-symbol of tags
switch (substr($this->_src, $start + 1, 1)) {
// check next character
case "\n":
case "\r":
case "\t":
case " ":
case "}":
// ignore the tag
$this->_appendText(substr($this->_src, $pos, $start - $pos + 2));
$end = $start + 1;
break;
case "*":
// comment block
$end = strpos($this->_src, '*}', $start);
// find end of the comment block
if ($end === false) {
throw new CompileException("Unclosed comment block in line {$this->_line}", 0, 1, $this->_name, $this->_line);
}
$end++;
$this->_appendText(substr($this->_src, $pos, $start - $pos));
$comment = substr($this->_src, $start, $end - $start);
// read the comment block for processing
$this->_line += substr_count($comment, "\n");
// count lines in comments
unset($comment);
// cleanup
break;
default:
$this->_appendText(substr($this->_src, $pos, $start - $pos));
$end = $start + 1;
do {
$need_more = false;
$end = strpos($this->_src, '}', $end + 1);
// search close-symbol of the tag
if ($end === false) {
// if unexpected end of template
throw new CompileException("Unclosed tag in line {$this->_line}", 0, 1, $this->_name, $this->_line);
}
$tag = substr($this->_src, $start + 1, $end - $start - 1);
if ($this->_ignore) {
// check ignore
if ($tag === '/' . $this->_ignore) {
// turn off ignore
$this->_ignore = false;
} else {
// still ignore
$this->_appendText('{' . $tag . '}');
continue;
}
}
if ($this->_tag_filters) {
foreach ($this->_tag_filters as $filter) {
$tag = call_user_func($filter, $tag, $this);
}
}
$tokens = new Tokenizer($tag);
// tokenize the tag
if ($tokens->isIncomplete()) {
// all strings finished?
$need_more = true;
} else {
$this->_appendCode($this->parseTag($tokens), '{' . $tag . '}');
// start the tag lexer
if ($tokens->key()) {
// if tokenizer have tokens - throws exceptions
throw new CompileException("Unexpected token '" . $tokens->current() . "' in {$this} line {$this->_line}, near '{" . $tokens->getSnippetAsString(0, 0) . "' <- there", 0, E_ERROR, $this->_name, $this->_line);
}
}
} while ($need_more);
unset($tag);
// cleanup
break;
}
$pos = $end + 1;
// move search-pointer to end of the tag
}
gc_collect_cycles();
$this->_appendText(substr($this->_src, $end ? $end + 1 : 0));
// append tail of the template
if ($this->_stack) {
$_names = array();
foreach ($this->_stack as $scope) {
$_names[] = '{' . $scope->name . '} opened on line ' . $scope->line;
}
/* @var Tag $scope */
$message = "Unclosed tag" . (count($_names) > 1 ? "s" : "") . ": " . implode(", ", $_names);
throw new CompileException($message, 0, 1, $this->_name, $scope->line);
}
$this->_src = "";
// cleanup
if ($this->_post) {
foreach ($this->_post as $cb) {
call_user_func_array($cb, array($this, &$this->_body));
}
}
$this->addDepend($this);
// for 'verify' performance
foreach ($this->_fenom->getPostFilters() as $filter) {
$this->_body = call_user_func($filter, $this, $this->_body);
}
}
