0ef0f1aab9
* harbour/include/hbapi.h
* harbour/include/hbapiitm.h
* harbour/source/vm/garbage.c
* harbour/source/vm/extend.c
* harbour/source/vm/itemapi.c
+ added hb_gcFunc(), hb_parptrGC(), hb_itemGetPtrGC()
hb_parptrGC() and hb_itemGetPtrGC() uses GC cleanup function address
to validate if pointer item points to expected memory block type
* harbour/source/common/hbhash.c
* harbour/source/compiler/hbident.c
* formatting and minor modifications
* harbour/source/pp/pplib.c
* harbour/source/pp/pplib2.c
* use hb_parptrGC() to be sure that given pointer item points
to PP structure
+ harbour/include/hbregex.h
+ harbour/source/rtl/hbregex.c
* harbour/source/rtl/Makefile
* harbour/common.mak
+ added support for regular expressions. Now it's enabled by default
only in *nixes (POSIX regex) and BCC 5.5 (PCRE regex). Setting
HB_PCRE_REGEX macro enables Perl-Compatible Regular Expressions
and HB_POSIX_REGEX - POSIX regular expressions. In xHarbour regex
support is enabled for all builds because PCRE source code is stored
in CVS. If you will want we can make the same.
+ the following C functions are available:
hb_regexCompile(), hb_regexGet(), hb_regexFree(), hb_regexMatch()
+ the following PGR functions are available:
HB_REGEXCOMP(), HB_ISREGEX(), HB_ATX(), HB_REGEX(), HB_REGEXMATCH(),
HB_REGEXSPLIT(), HB_REGEXATX(), HB_REGEXALL()
They are working in similar way to the ones in xHarbour with the
exception to some bug fixes and form of compiled regular expression.
In Harbour it's pointer item for which HB_ISREGEX() returns TRUE when
in xHarbour it's binary string.
* harbour/source/rdd/dbfcdx/dbfcdx1.c
* harbour/source/rdd/dbfntx/dbfntx1.c
* enabled code to seek in index using regular expressions
(DBOI_SKIPREGEX[BACK])
111 lines
2.9 KiB
C
111 lines
2.9 KiB
C
/*
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* $Id$
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*/
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/*
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* Harbour Project source code:
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* The cache for identifiers
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*
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* Copyright 1999 Ryszard Glab <rglab@imid.med.pl>
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* www - http://www.harbour-project.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
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*
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*/
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#include <string.h>
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#include "hbhash.h"
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#include "hbcomp.h"
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#define HB_IDENT_TABLE_SIZE 509UL
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/* create a new identifier or return the existing one
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*/
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char * hb_compIdentifierNew( HB_COMP_DECL, char * szName, int iType )
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{
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char * szIdent;
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szIdent = ( char * ) hb_hashTableFind( HB_COMP_PARAM->pIdentifiers,
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( void * ) szName );
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if( !szIdent )
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{
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/*
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* In the future we may add direct support for static identifiers
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* so it will not be necessary to allocate separate buffer for them
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*/
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if( iType == HB_IDENT_COPY || iType == HB_IDENT_STATIC )
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szIdent = hb_strdup( szName );
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else
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szIdent = szName;
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hb_hashTableAdd( HB_COMP_PARAM->pIdentifiers,
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( void * ) szIdent, ( void * ) szIdent );
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}
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else if( iType == HB_IDENT_FREE )
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hb_xfree( szName );
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return szIdent;
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}
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/* returns a hash key */
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static HB_HASH_FUNC( hb_comp_IdentKey ) /* ULONG func (void *Value, void *Cargo) */
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{
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ULONG ulSum = 0;
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char *szName = ( char * )Value;
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while( *szName )
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ulSum += *szName++;
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HB_SYMBOL_UNUSED( HashPtr );
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HB_SYMBOL_UNUSED( Cargo );
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return ulSum % HB_IDENT_TABLE_SIZE;
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}
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/* deletes an identifier */
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static HB_HASH_FUNC( hb_comp_IdentDel )
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{
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hb_xfree( Value );
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HB_SYMBOL_UNUSED( HashPtr );
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HB_SYMBOL_UNUSED( Cargo );
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return 1;
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}
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/* compares two identifiers */
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static HB_HASH_FUNC( hb_comp_IdentComp )
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{
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HB_SYMBOL_UNUSED( HashPtr );
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return strcmp( (char *)Value, (char *)Cargo );
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}
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/* initialize the hash table for identifiers */
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void hb_compIdentifierOpen( HB_COMP_DECL )
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{
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HB_COMP_PARAM->pIdentifiers = hb_hashTableCreate( HB_IDENT_TABLE_SIZE,
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hb_comp_IdentKey, hb_comp_IdentDel, hb_comp_IdentComp );
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}
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/* release identifiers table */
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void hb_compIdentifierClose( HB_COMP_DECL )
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{
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if( HB_COMP_PARAM->pIdentifiers )
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{
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hb_hashTableKill( HB_COMP_PARAM->pIdentifiers );
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HB_COMP_PARAM->pIdentifiers = NULL;
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}
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}
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