public function make_column($name, $errors)
{
foreach (self::$registered as $col) {
if (strcasecmp($col->formula->name, $name) == 0) {
return $col;
}
}
if (substr($name, 0, 4) === "edit") {
return null;
}
$formula = new Formula($name);
if (!$formula->check()) {
if ($errors && strpos($name, "(") !== false) {
self::make_column_error($errors, $formula->error_html(), 1);
}
return null;
}
$fdef = new FormulaPaperColumn("formulax" . (count(self::$registered) + 1), $formula);
self::register($fdef);
return $fdef;
}
private function _search_formula($word, &$qt, $quoted)
{
if (preg_match('/\\A[^(){}\\[\\]]+\\z/', $word) && !$quoted && ($result = Dbl::qe("select * from Formula where name=?", $word)) && ($row = $result->fetch_object())) {
$formula = new Formula($row);
Dbl::free($result);
} else {
$formula = new Formula($word);
}
if ($formula->check()) {
$qt[] = new SearchTerm("formula", self::F_XVIEW, $formula);
} else {
$this->warn($formula->error_html());
$qt[] = new SearchTerm("f");
}
}
