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tclRegexp.h

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00001 /* 
00002  * tclRegexp.h --
00003  *
00004  *      This file contains definitions used internally by Henry
00005  *      Spencer's regular expression code.
00006  *
00007  * Copyright (c) 1998 by Sun Microsystems, Inc.
00008  * Copyright (c) 1998-1999 by Scriptics Corporation.
00009  *
00010  * See the file "license.terms" for information on usage and redistribution
00011  * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
00012  *
00013  * RCS: @(#) $Id: tclRegexp.h,v 1.1 2001/08/18 00:48:55 fmk Exp $
00014  */
00015 
00016 #ifndef _TCLREGEXP
00017 #define _TCLREGEXP
00018 
00019 #include "regex.h"
00020 
00021 #ifdef BUILD_tcl
00022 # undef TCL_STORAGE_CLASS
00023 # define TCL_STORAGE_CLASS DLLEXPORT
00024 #endif
00025 
00026 /*
00027  * The TclRegexp structure encapsulates a compiled regex_t,
00028  * the flags that were used to compile it, and an array of pointers
00029  * that are used to indicate subexpressions after a call to Tcl_RegExpExec.
00030  * Note that the string and objPtr are mutually exclusive.  These values
00031  * are needed by Tcl_RegExpRange in order to return pointers into the
00032  * original string.
00033  */
00034 
00035 typedef struct TclRegexp {
00036     int flags;                  /* Regexp compile flags. */
00037     regex_t re;                 /* Compiled re, includes number of
00038                                  * subexpressions. */
00039     CONST char *string;         /* Last string passed to Tcl_RegExpExec. */
00040     Tcl_Obj *objPtr;            /* Last object passed to Tcl_RegExpExecObj. */
00041     regmatch_t *matches;        /* Array of indices into the Tcl_UniChar
00042                                  * representation of the last string matched
00043                                  * with this regexp to indicate the location
00044                                  * of subexpressions. */
00045     rm_detail_t details;        /* Detailed information on match (currently
00046                                  * used only for REG_EXPECT). */
00047     int refCount;               /* Count of number of references to this
00048                                  * compiled regexp. */
00049 } TclRegexp;
00050 
00051 #endif /* _TCLREGEXP */

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