Availability:C-language interface function
int PL_chars_to_term(const
char *chars, term_t -t)Parse the string chars and put the resulting Prolog term into
t. chars may or may not be closed using a Prolog
full-stop (i.e., a dot followed by a blank). Returns FALSE
if a syntax error was encountered and TRUE
after successful
completion. In addition to returning FALSE
, the
exception-term is returned in t on a syntax error. See also term_to_atom/2.
The following example builds a goal term from a string and calls it.
int
call_chars(const char *goal)
{ fid_t fid = PL_open_foreign_frame();
term_t g = PL_new_term_ref();
BOOL rval;
if ( PL_chars_to_term(goal, g) )
rval = PL_call(goal, NULL);
else
rval = FALSE;
PL_discard_foreign_frame(fid);
return rval;
}
...
call_chars("consult(load)");
...