is_prefix : string -> bool
- SYNOPSIS
-
Tests if an identifier has prefix status.
- DESCRIPTION
-
Certain identifiers c have prefix status, meaning that combinations of the
form c f x will be parsed as c (f x) rather than the usual (c f) x. The
call is_prefix "c" tests if c is one of those identifiers.
- FAILURE CONDITIONS
-
Never fails.
- SEE ALSO
-
parse_as_prefix, prefixes, unparse_as_prefix.