311 lines
7.3 KiB
C
311 lines
7.3 KiB
C
/*************************************************************************
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* *
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* YAP Prolog *
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* *
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* Yap Prolog was developed at NCCUP - Universidade do Porto *
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* *
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* Copyright L.Damas, V.S.Costa and Universidade do Porto 2015- *
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* *
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**************************************************************************
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* *
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* File: YapFlags.h *
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* Last rev: *
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* mods: *
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* comments: flag system interface. *
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* *
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*************************************************************************/
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/** @file YapFlags.h
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@ingroup Flags
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*/
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#ifndef YAP_FLAGS_H
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#define YAP_FLAGS_H 1
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// INLINE_ONLY inline EXTERN bool nat( Term inp );
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static inline bool nat(Term inp) {
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if (IsVarTerm(inp)) {
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Yap_Error(INSTANTIATION_ERROR, inp, "set_prolog_flag: value must be %s", "bound");
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return false;
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}
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if (IsIntTerm(inp)) {
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Int i = IntOfTerm(inp);
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if (i >= 0)
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return true;
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Yap_Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO, inp, "set_prolog_flag: value must be %s", ">= 0");
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return false;
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}
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Yap_Error(TYPE_ERROR_INTEGER, inp, "set_prolog_flag: value must be %s", "integer");
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return false;
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}
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static inline bool at2n(Term inp) {
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Yap_Error(PERMISSION_ERROR_READ_ONLY_FLAG, inp, "set_prolog_flag %s", "flag is read-only");
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return false;
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}
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static inline bool isfloat(Term inp) {
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if (IsVarTerm(inp)) {
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Yap_Error(INSTANTIATION_ERROR, inp, "set_prolog_flag: value must be %s", "integer");
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return false;
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}
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if (IsFloatTerm(inp)) {
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return true;
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}
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Yap_Error(TYPE_ERROR_FLOAT, inp, "set_prolog_flag: value must be %s", "floating-point");
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return false;
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}
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INLINE_ONLY inline EXTERN bool ro(Term inp);
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INLINE_ONLY inline EXTERN bool ro(Term inp) {
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if (IsVarTerm(inp)) {
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Yap_Error(INSTANTIATION_ERROR, inp, "set_prolog_flag: value must be %s", "bound");
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return false;
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}
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Yap_Error(PERMISSION_ERROR_READ_ONLY_FLAG, inp, "set_prolog_flag %s", "flag is read-only");
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return false;
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}
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INLINE_ONLY inline EXTERN bool aro(Term inp) {
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if (IsVarTerm(inp)) {
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Yap_Error(INSTANTIATION_ERROR, inp, "set_prolog_flag %s", "value must be bound");
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return false;
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}
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Yap_Error(PERMISSION_ERROR_READ_ONLY_FLAG, inp, "set_prolog_flag %s", "flag is read-only");
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return false;
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}
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// INLINE_ONLY inline EXTERN bool boolean( Term inp );
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static inline bool boolean(Term inp) {
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if (inp == TermTrue || inp == TermFalse || inp == TermOn || inp == TermOff)
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return true;
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if (IsVarTerm(inp)) {
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Yap_Error(INSTANTIATION_ERROR, inp, "set_prolog_flag %s", "value must be bound");
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;
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return false;
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}
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if (IsAtomTerm(inp)) {
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Yap_Error(DOMAIN_ERROR_OUT_OF_RANGE, inp,
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"set_prolog_flag in {true,false,on,off}");
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return false;
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}
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Yap_Error(TYPE_ERROR_ATOM, inp, "set_prolog_flag in {true,false,on,off");
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return false;
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}
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static bool synerr(Term inp) {
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if (inp == TermDec10 || inp == TermFail || inp == TermError ||
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inp == TermQuiet)
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return true;
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if (IsAtomTerm(inp)) {
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Yap_Error(DOMAIN_ERROR_OUT_OF_RANGE, inp,
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"set_prolog_flag in {dec10,error,fail,quiet}");
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return false;
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}
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Yap_Error(TYPE_ERROR_ATOM, inp,
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"set_prolog_flag in {dec10,error,fail,quiet}");
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return false;
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}
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static inline bool filler(Term inp) { return true; }
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static bool bqs(Term inp) {
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if (inp == TermCodes || inp == TermString || inp == TermSymbolChar)
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return true;
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if (IsAtomTerm(inp)) {
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Yap_Error(DOMAIN_ERROR_OUT_OF_RANGE, inp,
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"set_prolog_flag in {codes,string}");
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return false;
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}
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Yap_Error(TYPE_ERROR_ATOM, inp, "set_prolog_flag in {codes,string}");
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return false;
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}
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// INLINE_ONLY inline EXTERN bool isatom( Term inp );
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static inline bool isatom(Term inp) {
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if (IsVarTerm(inp)) {
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Yap_Error(INSTANTIATION_ERROR, inp, "set_prolog_flag %s", "value must be bound");
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return false;
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}
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if (IsAtomTerm(inp))
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return true;
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Yap_Error(TYPE_ERROR_ATOM, inp, "set_prolog_flag");
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return false;
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}
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// INLINE_ONLY inline EXTERN bool ok( Term inp );
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static inline bool ok(Term inp) { return true; }
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// a pair, obtained from x(y) -> 1,2,y)
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typedef struct x_el {
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bool used;
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Term tvalue;
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} xarg;
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typedef struct struct_param {
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char *name;
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flag_func type;
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int id;
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} param_t;
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typedef struct struct_param2 {
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char *name;
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flag_func type;
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int id;
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const char *scope;
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} param2_t;
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typedef struct {
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char *name;
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bool writable;
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flag_func def;
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const char *init;
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flag_func helper;
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} flag_info;
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typedef struct {
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char *name;
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flag_func def;
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const char *init;
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} arg_info;
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typedef union flagTerm {
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Term at;
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struct DB_TERM *DBT;
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} flag_term;
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void Yap_InitFlags(bool);
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#define YAP_FLAG(x, NAME, WRITABLE, DEF, INIT, HELPER) x
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typedef enum {
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#include "YapGFlagInfo.h"
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} global_flag_t;
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typedef enum {
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#include "YapLFlagInfo.h"
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} local_flag_t;
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#undef YAP_FLAG
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bool setYapFlag(Term tflag, Term t2);
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Term getYapFlag(Term tflag);
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static inline bool check_refs_to_ltable(void) { return true; }
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static inline void setAtomicGlobalPrologFlag(int id, Term v) {
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GLOBAL_Flags[id].at = v;
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}
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static inline void setAtomicLocalPrologFlag(int id, Term v) {
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CACHE_REGS
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check_refs_to_ltable();
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LOCAL_Flags[id].at = v;
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}
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static inline void setBooleanLocalPrologFlag(int id, bool v) {
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CACHE_REGS
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check_refs_to_ltable();
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if (v) {
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LOCAL_Flags[id].at = TermTrue;
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} else {
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LOCAL_Flags[-id].at = TermFalse;
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}
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}
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static inline void setBooleanGlobalPrologFlag(int id, bool v) {
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if (v) {
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GLOBAL_Flags[id].at = TermTrue;
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} else {
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GLOBAL_Flags[id].at = TermFalse;
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}
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}
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static inline bool trueGlobalPrologFlag(int id) {
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return GLOBAL_Flags[id].at == TermTrue;
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}
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static inline bool falseGlobalPrologFlag(int id) {
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return GLOBAL_Flags[id].at == TermFalse;
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}
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static inline bool trueLocalPrologFlag(int id) {
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CACHE_REGS
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return LOCAL_Flags[id].at == TermTrue;
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}
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static inline bool falsePrologFlag(int id) {
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CACHE_REGS
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return LOCAL_Flags[id].at == TermFalse;
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}
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static inline bool isoLanguageFlag(void) {
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return GLOBAL_Flags[ISO_FLAG].at == TermTrue;
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}
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static inline bool strictISOFlag(void) {
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return GLOBAL_Flags[STRICT_ISO_FLAG].at == TermTrue;
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}
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static inline bool silentMode(void) {
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return GLOBAL_Flags[VERBOSE_FLAG].at == TermSilent;
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}
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static inline void setVerbosity(Term val) {
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GLOBAL_Flags[VERBOSE_FLAG].at = val;
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}
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static inline bool setSyntaxErrorsFlag(Term val) {
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if (!synerr(val))
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return false;
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CACHE_REGS
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LOCAL_Flags[SYNTAX_ERRORS_FLAG].at = val;
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return true;
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}
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static inline Term getSyntaxErrorsFlag(void) {
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CACHE_REGS
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return LOCAL_Flags[SYNTAX_ERRORS_FLAG].at;
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}
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static inline bool setBackQuotesFlag(Term val) {
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if (!bqs(val))
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return false;
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if (val == TermSymbolChar)
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val = TermString;
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GLOBAL_Flags[BACKQUOTED_STRING_FLAG].at = val;
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return true;
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}
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static inline Term getBackQuotesFlag(void) {
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return GLOBAL_Flags[BACKQUOTED_STRING_FLAG].at;
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}
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static inline int indexingMode(void) { return GLOBAL_Flags[INDEX_FLAG].at; }
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static inline const char *floatFormat(void) {
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return RepAtom(AtomOfTerm(GLOBAL_Flags[FLOAT_FORMAT_FLAG].at))->rep.uStrOfAE;
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}
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static inline size_t indexingDepth(void) {
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return IntOfTerm(GLOBAL_Flags[INDEX_SUB_TERM_SEARCH_DEPTH_FLAG].at);
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}
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bool rmdot(Term inp);
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xarg *Yap_ArgListToVector(Term listl, const param_t *def, int n);
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xarg *Yap_ArgList2ToVector(Term listl, const param2_t *def, int n);
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#endif // YAP_FLAGS_H
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