202 lines
5.3 KiB
C
202 lines
5.3 KiB
C
/*************************************************************************
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* *
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* YAP Prolog %W% %G%
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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 1985-2003 *
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* *
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**************************************************************************
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* *
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* File: yapio.h *
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* Last rev: 22/1/03 *
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* mods: *
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* comments: Input/Output information *
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* *
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*************************************************************************/
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#ifndef YAPIO_H
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#define YAPIO_H 1
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#ifdef SIMICS
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#undef HAVE_LIBREADLINE
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#endif
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#include <stdio.h>
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#include <wchar.h>
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#include <Yatom.h>
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#include "os/YapIOConfig.h"
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#ifndef _PL_WRITE_
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#define EOFCHAR EOF
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#endif
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/* info on aliases */
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typedef struct AliasDescS {
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Atom name;
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int alias_stream;
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} * AliasDesc;
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#define MAX_ISO_LATIN1 255
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/****************** character definition table **************************/
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#define NUMBER_OF_CHARS 256
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extern char *Yap_chtype;
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#include "inline-only.h"
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INLINE_ONLY EXTERN inline int chtype(Int);
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int Yap_wide_chtype(Int);
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INLINE_ONLY EXTERN inline int
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chtype(Int ch)
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{
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if (ch < NUMBER_OF_CHARS)
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return Yap_chtype[ch];
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return Yap_wide_chtype(ch);
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}
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/* parser stack, used to be AuxSp, now is ASP */
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#define ParserAuxSp LOCAL_ScannerStack
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/* routines in parser.c */
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VarEntry *Yap_LookupVar(const char *);
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Term Yap_VarNames(VarEntry *,Term);
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Term Yap_Variables(VarEntry *,Term);
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Term Yap_Singletons(VarEntry *,Term);
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/* routines in scanner.c */
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TokEntry *Yap_tokenizer( struct stream_desc *, bool, Term *d);
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void Yap_clean_tokenizer(TokEntry *, VarEntry *, VarEntry *);
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char *Yap_AllocScannerMemory(unsigned int);
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/* routines in iopreds.c */
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FILE *Yap_FileDescriptorFromStream(Term);
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Int Yap_FirstLineInParse(void);
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int Yap_CheckIOStream(Term, char *);
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#if defined(YAPOR) || defined(THREADS)
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void Yap_LockStream(void *);
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void Yap_UnLockStream(void *);
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#else
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#define Yap_LockStream(X)
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#define Yap_UnLockStream(X)
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#endif
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Int Yap_GetStreamFd(int);
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void Yap_CloseStreams(int);
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void Yap_FlushStreams(void);
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void Yap_ReleaseStream(int);
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void Yap_CloseStream(int);
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int Yap_PlGetchar(void);
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int Yap_PlGetWchar(void);
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int Yap_PlFGetchar(void);
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int Yap_GetCharForSIGINT(void);
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Int Yap_StreamToFileNo(Term);
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int Yap_OpenStream(FILE *,char *,Term,int);
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char *Yap_TermToString(Term t, char *s, size_t sz, size_t *length, encoding_t encoding, int flags);
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char *Yap_HandleToString(yhandle_t l, size_t sz, size_t *length, encoding_t encoding, int flags);
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int Yap_GetFreeStreamD(void);
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int Yap_GetFreeStreamDForReading(void);
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Term Yap_WStringToList(wchar_t *);
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Term Yap_WStringToListOfAtoms(wchar_t *);
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Atom Yap_LookupWideAtom( const wchar_t * );
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#define Quote_illegal_f 0x01
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#define Ignore_ops_f 0x02
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#define Handle_vars_f 0x04
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#define Use_portray_f 0x08
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#define To_heap_f 0x10
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#define Unfold_cyclics_f 0x20
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#define Use_SWI_Stream_f 0x40
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#define BackQuote_String_f 0x80
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#define AttVar_None_f 0x100
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#define AttVar_Dots_f 0x200
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#define AttVar_Portray_f 0x400
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#define Blob_Portray_f 0x800
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#define No_Escapes_f 0x1000
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#define No_Brace_Terms_f 0x2000
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#define Fullstop_f 0x4000
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#define New_Line_f 0x8000
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/* grow.c */
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int Yap_growheap_in_parser(tr_fr_ptr *, TokEntry **, VarEntry **);
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int Yap_growstack_in_parser(tr_fr_ptr *, TokEntry **, VarEntry **);
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int Yap_growtrail_in_parser(tr_fr_ptr *, TokEntry **, VarEntry **);
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bool Yap_IsAbsolutePath(const char *p);
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Atom Yap_TemporaryFile( const char *prefix, int *fd);
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char *Yap_AbsoluteFile(const char *spec, char *tmp);
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typedef enum mem_buf_source {
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MEM_BUF_CODE=1,
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MEM_BUF_MALLOC=2,
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MEM_BUF_USER=4
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} memBufSource;
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struct mem_desc *Yap_MemExportStreamPtrs( int sno );
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extern Term Yap_StringToTerm(const char *s, size_t len, encoding_t enc, int prio, Term *bindings_p);
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extern Term Yap_StringToNumberTerm(char *s, encoding_t encp);
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int Yap_FormatFloat(Float f, const char *s, size_t sz);
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int Yap_open_buf_read_stream(const char *nbuf, size_t nchars, encoding_t enc, memBufSource src);
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Term Yap_ReadFromAtom(Atom a, Term opts);
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int Yap_open_buf_write_stream(char **nbufp, size_t * szp);
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FILE *Yap_GetInputStream(Term t, const char *m);
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FILE *Yap_GetOutputStream(Term t,const char *m);
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char * Yap_guessFileName(int f, int sno, char *nameb, size_t max);
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void Yap_plwrite(Term t, struct stream_desc *mywrite, int max_depth, int flags, int priority);
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int Yap_CheckSocketStream(Term stream, const char * error);
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void Yap_init_socks(char *host, long interface_port);
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#ifdef HAVE_ERRNO_H
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#include <errno.h>
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#else
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extern int errno;
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#endif
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INLINE_ONLY EXTERN UInt inline HashFunction(const char *);
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INLINE_ONLY EXTERN UInt inline WideHashFunction(wchar_t *);
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INLINE_ONLY EXTERN inline UInt
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HashFunction(const char *CHP)
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{
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/* djb2 */
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UInt hash = 5381;
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UInt c;
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while ((c = (UInt)(*CHP++)) != '\0') {
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/* hash = ((hash << 5) + hash) + c; hash * 33 + c */
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hash = hash * 33 ^ c;
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}
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return hash;
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/*
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UInt OUT=0, i = 1;
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while(*CHP != '\0') { OUT += (UInt)(*CHP++); }
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return OUT;
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*/
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}
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INLINE_ONLY EXTERN UInt inline
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WideHashFunction(wchar_t *CHP)
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{
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UInt hash = 5381;
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UInt c;
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while ((c = *CHP++) != '\0') {
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hash = hash * 33 ^ c;
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}
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return hash;
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}
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#endif
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