parse.h

数据挖掘中的关联规则发现算法

/*----------------------------------------------------------------------
  File    : parse.h
  Contents: parser utilities
  Author  : Christian Borgelt
  History : 12.08.2004 file created
----------------------------------------------------------------------*/
#ifndef __PARSE__
#define __PARSE__
#ifndef SC_SCAN
#define SC_SCAN
#endif
#include "scan.h"

/*----------------------------------------------------------------------
  Preprocessor Definitions
----------------------------------------------------------------------*/
/* --- error codes --- */
#define E_CHREXP    (-16)       /* character expected */
#define E_STREXP    (-17)       /* string expected */
#define E_NUMEXP    (-18)       /* number expected */
#define E_ILLNUM    (-19)       /* illegal number */

#define E_ATTEXP    (-20)       /* attribute expected */
#define E_UNKATT    (-21)       /* unknown attribute */
#define E_DUPATT    (-22)       /* duplicate attribute value */
#define E_MISATT    (-23)       /* missing attribute */
#define E_ILLATT    (-24)       /* illegal attribute */
#define E_ATTYPE    (-25)       /* wrong attribute type */

#define E_VALEXP    (-26)       /* attribute value expected */
#define E_UNKVAL    (-27)       /* unknown attribute value */
#define E_DUPVAL    (-28)       /* duplicate attribute value */
#define E_MISVAL    (-29)       /* missing attribute value */

#define E_CLSEXP    (-30)       /* class value expected */
#define E_UNKCLS    (-31)       /* unknown class value */
#define E_DUPCLS    (-32)       /* duplicate class value */
#define E_MISCLS    (-33)       /* missing class value */
#define E_CLSTYPE   (-34)       /* class attribute must be symbolic */
#define E_CLSCNT    (-35)       /* class attribute has too few values */

#define E_DOMAIN    (-36)       /* illegal attribute domain */

#define E_PAREXP    (-37)       /* parameter expected */
#define E_ILLOP     (-38)       /* illegal comparison operator */
#define E_ILLMAT    (-39)       /* illegal covariance matrix */

#define E_DUPCDL    (-40)       /* duplicate candidate list */
#define E_RANGE     (-41)       /* illegal candidate range */
#define E_ILLCDD    (-42)       /* illegal candidate */
#define E_ILLINK    (-43)       /* illegal link */

#define E_LYRCNT    (-44)       /* illegal number of layers */
#define E_UNITCNT   (-45)       /* illegal number of units */

/*----------------------------------------------------------------------
  Functions
----------------------------------------------------------------------*/
extern void pa_init  (SCAN *scan);
extern int  pa_error (SCAN *scan, int code, int c, const char *s);

/*----------------------------------------------------------------------
  Preprocessor Definitions
----------------------------------------------------------------------*/
#define ERROR(c)    return pa_error(scan, c,        -1, NULL)
#define XERROR(c,s) return pa_error(scan, c,        -1, s)
#define ERR_CHR(c)  return pa_error(scan, E_CHREXP,  c, NULL)
#define ERR_STR(s)  return pa_error(scan, E_STREXP, -1, s)
#define GET_TOK()   if (sc_next(scan) < 0) \
                      return sc_error(scan, sc_token(scan))
#define GET_CHR(c)  if (sc_token(scan) != (c)) ERR_CHR(c); \
                      else GET_TOK()
#define RECOVER()   if (sc_recover(scan, ';', '{', '}', 0) == T_EOF) \
                      return 1
#endif