#ifndef DOS_DOSASL_H
#define DOS_DOSASL_H
/*
**
**      $Filename: dos/dosasl.h $
**      $Release: 2.04 Includes, V37.4 $
**      $Revision: 36.16 $
**      $Date: 91/05/02 $
**
**      Pattern-matching structure definitions
**
**      (C) Copyright 1989-1999 Amiga, Inc.
**          All Rights Reserved
**
*/

#ifndef EXEC_LIBRARIES_H
#include <exec/libraries.h>
#endif

#ifndef EXEC_LISTS_H
#include <exec/lists.h>
#endif

#ifndef DOS_DOS_H
#include <dos/dos.h>
#endif


/***********************************************************************
************************ PATTERN MATCHING ******************************
************************************************************************

* structure expected by MatchFirst, MatchNext.
* Allocate this structure and initialize it as follows:
*
* Set ap_BreakBits to the signal bits (CDEF) that you want to take a
* break on, or NULL, if you don't want to convenience the user.
*
* If you want to have the FULL PATH NAME of the files you found,
* allocate a buffer at the END of this structure, and put the size of
* it into ap_Strlen.  If you don't want the full path name, make sure
* you set ap_Strlen to zero.  In this case, the name of the file, and stats
* are available in the ap_Info, as per usual.
*
* Then call MatchFirst() and then afterwards, MatchNext() with this structure.
* You should check the return value each time (see below) and take the
* appropriate action, ultimately calling MatchEnd() when there are
* no more files and you are done.  You can tell when you are done by
* checking for the normal AmigaDOS return code ERROR_NO_MORE_ENTRIES.
*
*/

struct AnchorPath {
       struct AChain   *ap_Base;       /* pointer to first anchor */
#define        ap_First ap_Base
       struct AChain   *ap_Last;       /* pointer to last anchor */
#define ap_Current ap_Last
       LONG    ap_BreakBits;   /* Bits we want to break on */
       LONG    ap_FoundBreak;  /* Bits we broke on. Also returns ERROR_BREAK */
       BYTE    ap_Flags;       /* New use for extra word. */
       BYTE    ap_Reserved;
       WORD    ap_Strlen;      /* This is what ap_Length used to be */
#define        ap_Length ap_Flags      /* Old compatability for LONGWORD ap_Length */
       struct  FileInfoBlock ap_Info;
        UBYTE   ap_Buf[1];      /* Buffer for path name, allocated by user */
        /* FIX! */
};


#define        APB_DOWILD      0       /* User option ALL */
#define APF_DOWILD      1

#define        APB_ITSWILD     1       /* Set by MatchFirst, used by MatchNext  */
#define APF_ITSWILD     2       /* Application can test APB_ITSWILD, too */
                                /* (means that there's a wildcard        */
                                /* in the pattern after calling          */
                                /* MatchFirst).                          */

#define        APB_DODIR       2       /* Bit is SET if a DIR node should be */
#define APF_DODIR       4       /* entered. Application can RESET this */
                                /* bit after MatchFirst/MatchNext to AVOID */
                                /* entering a dir. */

#define        APB_DIDDIR      3       /* Bit is SET for an "expired" dir node. */
#define APF_DIDDIR      8

#define        APB_NOMEMERR    4       /* Set on memory error */
#define APF_NOMEMERR    16

#define        APB_DODOT       5       /* If set, allow conversion of '.' to */
#define APF_DODOT       32      /* CurrentDir */

#define APB_DirChanged 6       /* ap_Current->an_Lock changed */
#define APF_DirChanged  64      /* since last MatchNext call */

#define APB_FollowHLinks 7      /* follow hardlinks on DODIR - defaults   */
#define APF_FollowHLinks 128   /* to not following hardlinks on a DODIR. */


struct AChain {
      struct AChain *an_Child;
      struct AChain *an_Parent;
        BPTR    an_Lock;
        struct FileInfoBlock an_Info;
      BYTE    an_Flags;
      UBYTE   an_String[1];   /* FIX!! */
};

#define       DDB_PatternBit  0
#define       DDF_PatternBit  1
#define       DDB_ExaminedBit 1
#define       DDF_ExaminedBit 2
#define       DDB_Completed   2
#define       DDF_Completed   4
#define DDB_AllBit      3
#define DDF_AllBit      8
#define DDB_Single      4
#define DDF_Single      16

/*
 * Constants used by wildcard routines, these are the pre-parsed tokens
 * referred to by pattern match.  It is not necessary for you to do
 * anything about these, MatchFirst() MatchNext() handle all these for you.
 */

#define P_ANY         0x80    /* Token for '*' or '#?  */
#define P_SINGLE      0x81    /* Token for '?' */
#define P_ORSTART     0x82    /* Token for '(' */
#define P_ORNEXT      0x83    /* Token for '|' */
#define P_OREND       0x84    /* Token for ')' */
#define P_NOT         0x85    /* Token for '~' */
#define P_NOTEND      0x86    /* Token for */
#define P_NOTCLASS    0x87    /* Token for '^' */
#define P_CLASS 0x88    /* Token for '[]' */
#define P_REPBEG        0x89    /* Token for '[' */
#define P_REPEND        0x8A    /* Token for ']' */
#define P_STOP                0x8B    /* token to force end of evaluation */

/* Values for an_Status, NOTE: These are the actual bit numbers */

#define COMPLEX_BIT     1       /* Parsing complex pattern */
#define EXAMINE_BIT     2       /* Searching directory */

/*
 * Returns from MatchFirst(), MatchNext()
 * You can also get dos error returns, such as ERROR_NO_MORE_ENTRIES,
 * these are in the dos.h file.
 */

#define ERROR_BUFFER_OVERFLOW   303     /* User or internal buffer overflow */
#define ERROR_BREAK             304     /* A break character was received */
#define ERROR_NOT_EXECUTABLE    305     /* A file has E bit cleared */

#endif /* DOS_DOSASL_H */