8fd1bc92f3
fix for ^c in readline git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@133 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
324 lines
7.7 KiB
C
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
|