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get predicates.

This commit is contained in:
ubu32 2011-02-14 11:39:23 -08:00
parent 67d23051c2
commit a851c56e3d
3 changed files with 20 additions and 94 deletions
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47
C/iopreds.c
View File

@ -113,9 +113,6 @@ STATIC_PROTO (Int p_write2, (void));
STATIC_PROTO (Int p_set_read_error_handler, (void));
STATIC_PROTO (Int p_get_read_error_handler, (void));
STATIC_PROTO (Int p_read, (void));
STATIC_PROTO (Int p_get, (void));
STATIC_PROTO (Int p_get0, (void));
STATIC_PROTO (Int p_get_byte, (void));
STATIC_PROTO (Int p_peek, (void));
STATIC_PROTO (Int p_past_eof, (void));
STATIC_PROTO (Int p_put, (void));
@ -2692,26 +2689,6 @@ p_get (void)
return (Yap_unify_constant (ARG2, MkIntegerTerm (ch)));
}
static Int
p_get0 (void)
{ /* get0(Stream,-N) */
int sno = CheckStream (ARG1, Input_Stream_f, "get0/2");
Int status;
Int out;
if (sno < 0)
return(FALSE);
status = Stream[sno].status;
if (status & Binary_Stream_f) {
UNLOCK(Stream[sno].streamlock);
Yap_Error(PERMISSION_ERROR_INPUT_BINARY_STREAM, ARG1, "get0/2");
return FALSE;
}
UNLOCK(Stream[sno].streamlock);
out = Stream[sno].stream_wgetc(sno);
return (Yap_unify_constant (ARG2, MkIntegerTerm (out)) );
}
static Term
read_line(int sno)
{
@ -2756,27 +2733,6 @@ p_get0_line_codes (void)
return Yap_unify(out,ARG2);
}
static Int
p_get_byte (void)
{ /* '$get_byte'(Stream,-N) */
int sno = CheckStream (ARG1, Input_Stream_f, "get_byte/2");
Int status;
Term out;
if (sno < 0)
return(FALSE);
status = Stream[sno].status;
if (!(status & Binary_Stream_f) &&
yap_flags[STRICT_ISO_FLAG]) {
UNLOCK(Stream[sno].streamlock);
Yap_Error(PERMISSION_ERROR_INPUT_TEXT_STREAM, ARG1, "get_byte/2");
return(FALSE);
}
out = MkIntTerm(Stream[sno].stream_getc(sno));
UNLOCK(Stream[sno].streamlock);
return Yap_unify_constant (ARG2, out);
}
static Int
p_put (void)
{ /* '$put'(Stream,N) */
@ -4307,10 +4263,7 @@ Yap_InitIOPreds(void)
Stream = (StreamDesc *)Yap_AllocCodeSpace(sizeof(StreamDesc)*MaxStreams);
/* here the Input/Output predicates */
Yap_InitCPred ("$close", 1, p_close, SafePredFlag|SyncPredFlag|HiddenPredFlag);
Yap_InitCPred ("get", 2, p_get, SafePredFlag|SyncPredFlag|HiddenPredFlag);
Yap_InitCPred ("get0", 2, p_get0, SafePredFlag|SyncPredFlag|HiddenPredFlag);
Yap_InitCPred ("$get0_line_codes", 2, p_get0_line_codes, SafePredFlag|SyncPredFlag|HiddenPredFlag);
Yap_InitCPred ("$get_byte", 2, p_get_byte, SafePredFlag|SyncPredFlag|HiddenPredFlag);
Yap_InitCPred ("$access", 1, p_access, SafePredFlag|SyncPredFlag|HiddenPredFlag);
Yap_InitCPred ("exists_directory", 1, p_exists_directory, SafePredFlag|SyncPredFlag);
Yap_InitCPred ("$file_expansion", 2, p_file_expansion, SafePredFlag|SyncPredFlag|HiddenPredFlag);

20
pl/boot.yap
View File

@ -1439,3 +1439,23 @@ ttyflush :-
swi_ttyflush.
get(C) :-
swi_get(C).
get(Stream, C) :-
swi_get(Stream, C).
get0(C) :-
swi_get0(C).
get0(Stream, C) :-
swi_get0(Stream, C).
get_byte(C) :-
swi_get_byte(C).
get_byte(Stream, C) :-
swi_get_byte(Stream, C).
get_char(C) :-
swi_get_char(C).
get_char(Stream, C) :-
swi_get_char(Stream, C).
get_code(C) :-
swi_get_code(C).
get_code(Stream, C) :-
swi_get_code(Stream, C).

47
pl/yio.yap
View File

@ -416,21 +416,6 @@ format(T) :-
/* character I/O */
get(N) :- current_input(S), get(S,N).
get_byte(V) :-
\+ var(V), (\+ integer(V) ; V < -1 ; V > 256), !,
'$do_error'(type_error(in_byte,V),get_byte(V)).
get_byte(V) :-
current_input(S),
'$get_byte'(S,V).
get_byte(S,V) :-
\+ var(V), (\+ integer(V) ; V < -1 ; V > 256), !,
'$do_error'(type_error(in_byte,V),get_byte(S,V)).
get_byte(S,V) :-
'$get_byte'(S,V).
peek_byte(V) :-
\+ var(V), (\+ integer(V) ; V < -1 ; V > 256), !,
'$do_error'(type_error(in_byte,V),get_byte(V)).
@ -444,23 +429,6 @@ peek_byte(S,V) :-
peek_byte(S,V) :-
'$peek_byte'(S,V).
get_char(V) :-
\+ var(V),
( atom(V) -> atom_codes(V,[_,_|_]), V \= end_of_file ; true ), !,
'$do_error'(type_error(in_character,V),get_char(V)).
get_char(V) :-
current_input(S),
get0(S,I),
( I = -1 -> V = end_of_file ; atom_codes(V,[I])).
get_char(S,V) :-
\+ var(V),
( atom(V) -> atom_codes(V,[_,_|_]), V \= end_of_file ; true ), !,
'$do_error'(type_error(in_character,V),get_char(S,V)).
get_char(S,V) :-
get0(S,I),
( I = -1 -> V = end_of_file ; atom_codes(V,[I])).
peek_char(V) :-
\+ var(V),
( atom(V) -> atom_codes(V,[_,_|_]), V \= end_of_file ; true ), !,
@ -478,19 +446,6 @@ peek_char(S,V) :-
'$peek'(S,I),
( I = -1 -> V = end_of_file ; atom_codes(V,[I])).
get_code(S,V) :-
\+ var(V), (\+ integer(V)), !,
'$do_error'(type_error(in_character_code,V),get_code(S,V)).
get_code(S,V) :-
get0(S,V).
get_code(V) :-
\+ var(V), (\+ integer(V)), !,
'$do_error'(type_error(in_character_code,V),get_code(V)).
get_code(V) :-
current_input(S),
get0(S,V).
peek_code(S,V) :-
\+ var(V), (\+ integer(V)), !,
'$do_error'(type_error(in_character_code,V),get_code(S,V)).
@ -561,8 +516,6 @@ put_code(S,V) :-
get0(N) :- current_input(S), get0(S,N).
put(N) :- current_output(S), N1 is N, '$put'(S,N1).
put(Stream,N) :- N1 is N, '$put'(Stream,N1).