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yap-6.3/H/yapio.h
vsc 8fd1bc92f3 support trace
fix for ^c in readline


git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@133 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
2001-08-08 21:17:27 +00:00

324 lines
7.7 KiB
C

/*************************************************************************
* *
* YAP Prolog %W% %G%
* *
* Yap Prolog was developed at NCCUP - Universidade do Porto *
* *
* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
* *
**************************************************************************
* *
* File: io.h *
* Last rev: 19/2/88 *
* mods: *
* comments: Input/Output information *
* *
*************************************************************************/
#ifdef SIMICS
#undef HAVE_LIBREADLINE
#endif
#include <stdio.h>
#ifndef YAP_STDIO
#define YP_printf printf
#define YP_putchar putchar
#define YP_getc getc
#define YP_fgetc fgetc
#define YP_getchar getchar
#define YP_fgets fgets
#define YP_clearerr clearerr
#define YP_feof feof
#define YP_ferror ferror
#if _MSC_VER || defined(__MINGW32__)
#define YP_fileno _fileno
#else
#define YP_fileno fileno
#endif
#define YP_fopen fopen
#define YP_fclose fclose
#define YP_ftell ftell
#define YP_fseek fseek
#define YP_setbuf setbuf
#define YP_fputs fputs
#define YP_ungetc ungetc
#define YP_fdopen fdopen
#define init_yp_stdio()
#if _MSC_VER || defined(__MINGW32__)
#define open _open
#define close _close
#define popen _popen
#define pclose _pclose
#define read _read
#define write _write
#define isatty _isatty
#define putenv(S) _putenv(S)
#define chdir(P) _chdir(P)
#define getcwd(B,S) _getcwd(B,S)
#endif
#define YP_FILE FILE
extern int YP_stdin;
extern int YP_stdout;
extern int YP_stderr;
int STD_PROTO(YP_fprintf,(int, char *, ...));
int STD_PROTO(YP_putc,(int, int));
int STD_PROTO(YP_fflush,(int));
#else
#ifdef putc
#undef putc
#undef getc
#undef putchar
#undef getchar
#undef stdin
#undef stdout
#undef stderr
#endif
#define printf ERR_printf
#define fprintf ERR_fprintf
#define putchar ERR_putchar
#define putc ERR_putc
#define getc ERR_getc
#define fgetc ERR_fgetc
#define getchar ERR_getchar
#define fgets ERR_fgets
#define clearerr ERR_clearerr
#define feof ERR_feof
#define ferror ERR_ferror
#define fileno ERR_fileno
#define fopen ERR_fopen
#define fclose ERR_fclose
#define fflush ERR_fflush
/* flags for files in IOSTREAM struct */
#define _YP_IO_WRITE 1
#define _YP_IO_READ 2
#define _YP_IO_ERR 0x04
#define _YP_IO_EOF 0x08
#define _YP_IO_FILE 0x10
#define _YP_IO_SOCK 0x20
typedef struct IOSTREAM {
int check;
int fd; /* file descriptor */
int flags;
int cnt;
int buflen;
char buf[2];
char *ptr;
char *base;
int (*close)(int fd); /* close file */
int (*read)(int fd, char *b, int n); /* read bytes */
int (*write)(int fd, char *b, int n);/* write bytes */
} YP_FILE;
#define YP_stdin &yp_iob[0]
#define YP_stdout &yp_iob[1]
#define YP_stderr &yp_iob[2]
#define YP_getc(f) (--(f)->cnt < 0 ? YP_fillbuf(f) : *((unsigned char *) ((f)->ptr++)))
#define YP_fgetc(f) YP_fgetc(f)
#define YP_putc(c,f) (--(f)->cnt < 0 ? YP_flushbuf(c,f) : (unsigned char) (*(f)->ptr++ = (char) c))
#define YP_putchar(cc) YP_putc(cc,YP_stdout)
#define YP_getchar() YP_getc(YP_stdin)
int YP_fillbuf(YP_FILE *f);
int YP_flushbuf(int c, YP_FILE *f);
int YP_printf(char *, ...);
int YP_fprintf(YP_FILE *, char *, ...);
char* YP_fgets(char *, int, YP_FILE *);
char* YP_gets(char *);
YP_FILE *YP_fopen(char *, char *);
int YP_fclose(YP_FILE *);
int YP_fileno(YP_FILE *);
int YP_fflush(YP_FILE *);
int YP_feof(YP_FILE *);
int YP_ftell(YP_FILE *);
int YP_fseek(YP_FILE *, int, int);
int YP_clearerr(YP_FILE *);
void init_yp_stdio(void);
int YP_fputs(char *s, YP_FILE *f);
int YP_puts(char *s);
int YP_setbuf(YP_FILE *f, char *buf);
#define YP_MAX_FILES 40
extern YP_FILE yp_iob[YP_MAX_FILES];
#endif /* YAP_STDIO */
#if defined(FILENAME_MAX) && !defined(__hpux)
#define YAP_FILENAME_MAX FILENAME_MAX
#else
#define YAP_FILENAME_MAX 1024 /* This is ok for Linux, should be ok for everyone */
#endif
extern char FileNameBuf[YAP_FILENAME_MAX], FileNameBuf2[YAP_FILENAME_MAX];
typedef YP_FILE *YP_File;
enum TokenKinds
{ Name_tok, Number_tok, Var_tok, String_tok, Ponctuation_tok,
eot_tok };
typedef struct TOKEN {
unsigned char Tok;
Term TokInfo;
int TokPos;
struct TOKEN *TokNext;
} TokEntry;
#define Ord(X) ((int) X)
#define NextToken GNextToken()
typedef struct VARSTRUCT {
Term VarAdr;
CELL hv;
struct VARSTRUCT *VarLeft, *VarRight;
char VarRep[1];
} VarEntry;
/* Character types for tokenizer and write.c */
#define UC 1 /* Upper case */
#define UL 2 /* Underline */
#define LC 3 /* Lower case */
#define NU 4 /* digit */
#define QT 5 /* single quote */
#define DC 6 /* double quote */
#define SY 7 /* Symbol character */
#define SL 8 /* Solo character */
#define BK 9 /* Brackets & friends */
#define BS 10 /* Blank */
#define EF 11 /* End of File marker */
#define CC 12 /* comment char % */
#define EOFCHAR EOF
#if USE_SOCKET
/****************** defines for sockets *********************************/
typedef enum{ /* in YAP, sockets may be in one of 4 possible status */
new_socket,
server_socket,
client_socket,
server_session_socket
} socket_info;
typedef enum{ /* we accept two domains for the moment, IPV6 may follow */
af_inet, /* IPV4 */
af_unix /* or AF_FILE */
} socket_domain;
/* info on aliases */
typedef struct AliasDescS {
Atom name;
int alias_stream;
} * AliasDesc;
Term STD_PROTO(InitSocketStream,(int, socket_info, socket_domain));
int STD_PROTO(CheckSocketStream,(Term, char *));
socket_domain STD_PROTO(GetSocketDomain,(int));
socket_info STD_PROTO(GetSocketStatus,(int));
void STD_PROTO(UpdateSocketStream,(int, socket_info, socket_domain));
/* routines in ypsocks.c */
Int CloseSocket(int, socket_info, socket_domain);
#endif /* USE_SOCKET */
/****************** character definition table **************************/
#define NUMBER_OF_CHARS 256
extern char *chtype;
/*************** variables concerned with parsing *********************/
extern TokEntry *tokptr, *toktide;
extern VarEntry *VarTable, *AnonVarTable;
extern int eot_before_eof;
/* parser stack, used to be AuxSp, now is ASP */
#define ParserAuxSp (TR)
/* routines in parser.c */
VarEntry STD_PROTO(*LookupVar,(char *));
Term STD_PROTO(VarNames,(VarEntry *,Term));
/* routines ins scanner.c */
TokEntry STD_PROTO(*tokenizer,(int (*)(int), int (*)(int)));
TokEntry STD_PROTO(*fast_tokenizer,(void));
Term STD_PROTO(scan_num,(int (*)(int)));
/* routines in iopreds.c */
void STD_PROTO(syntax_error,(TokEntry *));
void STD_PROTO(FirstLineInParse,(void));
int STD_PROTO(CheckIOStream,(Term, char *));
int STD_PROTO(GetStreamFd,(int));
void STD_PROTO(CloseStream,(int));
int STD_PROTO(PlGetchar,(void));
int STD_PROTO(PlFGetchar,(void));
int STD_PROTO(StreamToFileNo,(Term));
extern int c_input_stream, c_output_stream, c_error_stream;
#define YAP_INPUT_STREAM 0x01
#define YAP_OUTPUT_STREAM 0x02
#define YAP_APPEND_STREAM 0x04
#define YAP_PIPE_STREAM 0x08
#define YAP_TTY_STREAM 0x10
#define YAP_POPEN_STREAM 0x20
#define YAP_BINARY_STREAM 0x40
#define YAP_SEEKABLE_STREAM 0x80
Term STD_PROTO(OpenStream,(FILE *,char *,Term,int));
/* routines in sysbits.c */
char *STD_PROTO(pfgets,(char *,int,YP_File));
/* write.c */
void STD_PROTO(plwrite,(Term,int (*)(int, int),int));
/* grow.c */
int STD_PROTO(growstack_in_parser, (tr_fr_ptr *, TokEntry **, VarEntry **));
#if HAVE_ERRNO_H
#include <errno.h>
#else
extern int errno;
#endif
#if DEBUG
#if COROUTINING
extern int Portray_delays;
#endif
#endif
#define HashFunction(CHP,OUT) { (OUT)=0; while(*(CHP) != '\0') (OUT) += *(CHP)++; (OUT) %= MaxHash; }
extern jmp_buf IOBotch;
extern int in_getc;
#ifdef HAVE_LIBREADLINE
extern sigjmp_buf readline_jmpbuf;
#endif