/* 

 * tclRegexp.h --

 *

 * 	This file contains definitions used internally by Henry

 *	Spencer's regular expression code.

 *

 * Copyright (c) 1998 by Sun Microsystems, Inc.

 * Copyright (c) 1998-1999 by Scriptics Corporation.

 *

 * See the file "license.terms" for information on usage and redistribution

 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.

 *

 * RCS: @(#) $Id: tclRegexp.h,v 1.11 1999/08/02 17:45:38 redman Exp $

 */

#ifndef _TCLREGEXP

#define _TCLREGEXP

#include "regex.h"

#ifdef BUILD_tcl

# undef TCL_STORAGE_CLASS

# define TCL_STORAGE_CLASS DLLEXPORT

#endif

/*

 * The TclRegexp structure encapsulates a compiled regex_t,

 * the flags that were used to compile it, and an array of pointers

 * that are used to indicate subexpressions after a call to Tcl_RegExpExec.

 * Note that the string and objPtr are mutually exclusive.  These values

 * are needed by Tcl_RegExpRange in order to return pointers into the

 * original string.

 */

typedef struct TclRegexp {

    int flags;			/* Regexp compile flags. */

    regex_t re;			/* Compiled re, includes number of

				 * subexpressions. */

    CONST char *string;		/* Last string passed to Tcl_RegExpExec. */

    Tcl_Obj *objPtr;		/* Last object passed to Tcl_RegExpExecObj. */

    regmatch_t *matches;	/* Array of indices into the Tcl_UniChar

				 * representation of the last string matched

				 * with this regexp to indicate the location

				 * of subexpressions. */

    rm_detail_t details;	/* Detailed information on match (currently

				 * used only for REG_EXPECT). */

    int refCount;		/* Count of number of references to this

				 * compiled regexp. */

} TclRegexp;

#endif /* _TCLREGEXP */