/*----------------------------------------------------------------------  File    : tfscan.h  Contents: table file scanner management  Author  : Christian Borgelt  History : 04.01.1998 file created            11.03.1998 additional character flags enabled            12.08.1998 function tfs_copy added            26.11.1998 some function parameters changed to const            29.11.1998 function tfs_dup added            04.02.1999 long int changed to int            14.07.2001 tfs_sgetc modified, tfs_buf and tfs_err added            19.08.2001 tfs_delim added (last delimiter type)            11.02.2002 tfs_skip, tfs_reccnt, and tfs_reset added----------------------------------------------------------------------*/#ifndef __TFSCAN__#define __TFSCAN__#include <stdio.h>/*----------------------------------------------------------------------  Preprocessor Definitions----------------------------------------------------------------------*//* --- character flags --- */#define TFS_RECSEP   0x01       /* flag for record separator */#define TFS_FLDSEP   0x02       /* flag for field separator */#define TFS_BLANK    0x04       /* flag for blank character */#define TFS_COMMENT  0x08       /* flag for comment character */#define TFS_OTHER    0x10       /* flag for other character type *//* --- delimiter types --- */#define TFS_EOF      0          /* end of file delimiter */#define TFS_REC      1          /* record delimiter */#define TFS_FLD      2          /* field  delimiter *//* --- buffer size --- */#define TFS_SIZE   256          /* size of internal read buffer *//*----------------------------------------------------------------------  Type Definitions----------------------------------------------------------------------*/typedef struct {                /* --- error information --- */  int        code;              /* error code */  int        rec, fld;          /* record and field number */  int        exp;               /* expected number of records/fields */  char       *s;                /* a string (e.g., field contents) */} TFSERR;                       /* (error information) */typedef struct {                /* --- table file scanner --- */  char       cflags[256];       /* character flags */  const char *s;                /* string pointer for tfs_sgetc */  int        reccnt;            /* number of records read */  int        delim;             /* last delimiter read */  int        cnt;               /* number of characters read */  char       buf[TFS_SIZE+4];   /* read buffer */  TFSERR     err;               /* error information */} TFSCAN;                       /* (table file scanner) *//*----------------------------------------------------------------------  Functions----------------------------------------------------------------------*/extern TFSCAN* tfs_create (void);extern void    tfs_delete (TFSCAN *tfs);extern TFSCAN* tfs_dup    (const TFSCAN *tfs);extern void    tfs_copy   (TFSCAN *dst, const TFSCAN *src);extern int     tfs_sgetc  (TFSCAN *tfs, const char *s);extern int     tfs_chars  (TFSCAN *tfs, int type, const char *chars);extern int     tfs_istype (const TFSCAN *tfs, int type, int c);extern int     tfs_getfld (TFSCAN *tfs, FILE *file, char *buf, int len);extern int     tfs_delim  (TFSCAN *tfs);extern int     tfs_cnt    (TFSCAN *tfs);extern char*   tfs_buf    (TFSCAN *tfs);extern int     tfs_skip   (TFSCAN *tfs, FILE *file);extern int     tfs_reccnt (TFSCAN *tfs);extern void    tfs_reset  (TFSCAN *tfs);extern TFSERR* tfs_err    (TFSCAN *tfs);/*----------------------------------------------------------------------  Preprocessor Definitions----------------------------------------------------------------------*/#define tfs_delete(s)     free(s)#define tfs_istype(s,t,c) ((s)->cflags[(unsigned char)(c)] & (t))#define tfs_delim(s)      ((s)->delim)#define tfs_cnt(s)        ((s)->cnt)#define tfs_buf(s)        ((s)->buf)#define tfs_reccnt(s)     ((s)->reccnt)#define tfs_reset(s)      ((s)->reccnt = 0)#define tfs_err(s)        (&(s)->err)#endif