introduce node autofill

and so gets a +1 from me.

How do you see this being used?

I wonder if developers will want further restrictions on returned nodes like type=x, for example.

I don't think that Moshes wanted the user to make this the selection, but the programmer that calls this function. Event.module would want to only get titles for node types that are event enabled, etc.

I suggest an optional second argument to the function, that accepts a comma delimited string. thus you could search in all node titles that have node types that occur in that string.

function node_autocomplete($string, $node_types = NULL) {
$matches = array();
if ($node_types) {
$result = db_query_range(db_rewrite_sql('SELECT title FROM {node} WHERE type IN ('%s') AND LOWER(title) LIKE LOWER("%%%s%%")'), %node_types, $string, 0, 10);
}
else {
$result = db_query_range(db_rewrite_sql('SELECT title FROM {node} WHERE LOWER(title) LIKE LOWER("%%%s%%")'), $string, 0, 10);
}
while ($node = db_fetch_object($result)) {
$matches[$node->title] = check_plain($node->title);
}
print drupal_implode_autocomplete($matches);
exit();
}

Patch doesn't apply anymore. I like the idea, though.

freelinking does this, so perhaps look at that code, as well as the wiki module code.

This is a feature that belongs in contrib.
Anyway, it's already implemented in http://drupal.org/project/auto_nodetitle .