function normalize($str)
{
if ($str instanceof Modyllic_Token_Reserved) {
return $str->value();
} else {
if ($str instanceof Modyllic_Token_String) {
$value = $str->unquote();
} else {
if ($str instanceof Modyllic_Token_Num) {
$value = $str->value();
} else {
if (!is_object($str)) {
$value = $str;
} else {
throw new Exception("Expected a valid string, got: {$str}");
}
}
}
}
if (isset($this->length)) {
$value = substr($value, 0, $this->length);
}
return Modyllic_SQL::quote_str($value);
}
/**
* Our string parser, this expects strings to look like <CHR>stuff<CHR>
* where <CHR> is a quote character. <CHR> can be escaped by either
* doubling it or by preceding it with a backslash. Any character
* proceeded by a backslash will be included literally.
* For example, the string: foo's test
* Could be: 'foo''s test'
* Or: 'foo\'s test'
* If the quote character is ` then it will return a quoted ident
* token rather then a string token.
*/
private function next_string()
{
$quote = $this->cmdstr[$this->pos];
$this->pos++;
$str = $quote;
while ($this->pos < $this->len) {
$chr = $this->cmdstr[$this->pos++];
if ($chr == '\\') {
$str .= $chr . $this->cmdstr[$this->pos++];
} else {
if ($chr == $quote and $this->pos < $this->len and $this->cmdstr[$this->pos] == $quote) {
$str .= $chr . $this->cmdstr[$this->pos++];
} else {
if ($chr == $quote) {
$str .= $chr;
break;
} else {
$str .= $chr;
}
}
}
}
if ($quote == '`') {
return new Modyllic_Token_Ident_Quoted($this->pos, $str);
} else {
$token = new Modyllic_Token_String($this->pos, $str);
// If we're followed by whitespace and a string, then concatenate the string
if ($this->peek_next(true) instanceof Modyllic_Token_Whitespace) {
$ws = $this->next(true);
if ($this->peek_next(true) instanceof Modyllic_Token_String) {
$token = new Modyllic_Token_String($this->pos, Modyllic_SQL::quote_str($token->unquote() . $this->next(false)->unquote()));
} else {
$this->inject($ws);
}
}
return $token;
}
}
protected function _format_replace($matches)
{
switch ($matches[1]) {
case 'id':
$result = Modyllic_SQL::quote_ident(array_shift($this->_format_args));
break;
case 'str':
$result = Modyllic_SQL::quote_str(array_shift($this->_format_args));
break;
case 'lit':
$result = array_shift($this->_format_args);
break;
default:
$result = '%' . $matches[1];
}
return $result;
return $this;
}
