32e5e776c5
+ Added to the list of contributors:
Carlos Bacco (carlosbacco gmail.com)
Francesco Perillo (fperillo gmail.com)
Istvan Bisz (istvan.bisz t-online.hu)
Tamas Tevesz (ice extreme.hu)
(I accept recommendation about who else should be added,
it's be a while I updated this list)
* contrib/hbide/ideparseexpr.c
% Using hb_parldef().
341 lines
10 KiB
C
341 lines
10 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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*
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* Copyright 2009 Andy Wos
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* www - http://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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* As a special exception, the Harbour Project gives permission for
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* additional uses of the text contained in its release of Harbour.
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*
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* The exception is that, if you link the Harbour libraries with other
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* files to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the Harbour library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the Harbour
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* Project under the name Harbour. If you copy code from other
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* Harbour Project or Free Software Foundation releases into a copy of
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* Harbour, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for Harbour, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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*
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*/
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/*----------------------------------------------------------------------*/
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/*----------------------------------------------------------------------*/
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/*----------------------------------------------------------------------*/
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/*
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* EkOnkar
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* ( The LORD is ONE )
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*
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* Harbour-Qt IDE
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*
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* Code Forwarded by Andy Wos
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*
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* Pritpal Bedi <pritpal@vouchcac.com>
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* 22Nov2009
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*/
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/*----------------------------------------------------------------------*/
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/*----------------------------------------------------------------------*/
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/*----------------------------------------------------------------------*/
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#include "hbapi.h"
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#include "hbapiitm.h"
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/*----------------------------------------------------------------------*/
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static HB_ISIZ ide_linearfind( const char ** array, const char * pszText, HB_ISIZ lenarray, HB_ISIZ lentext, HB_BOOL bMatchCase )
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{
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HB_ISIZ i;
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if( bMatchCase )
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{
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for( i = 0; i < lenarray; i++ )
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{
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if( strncmp( pszText, array[ i ], lentext + 1 ) == 0 )
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return i + 1;
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}
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}
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else
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{
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for( i = 0; i < lenarray; i++ )
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{
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if( hb_strnicmp( pszText, array[ i ], lentext + 1 ) == 0 )
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return i + 1;
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}
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}
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return 0;
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}
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/*----------------------------------------------------------------------*/
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static HB_BOOL ide_strempty( const char * pszString )
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{
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HB_ISIZ i = 0;
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while( pszString[ i ] != 0 )
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{
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if( pszString[ i++ ] != ' ' )
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return HB_FALSE;
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}
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return HB_TRUE;
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}
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/*----------------------------------------------------------------------*/
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static HB_ISIZ ide_atbuff( const char * pszChars, const char * pszString, HB_ISIZ StartFrom, HB_ISIZ Target, HB_ISIZ len_chars, HB_ISIZ len )
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{
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if( len >= len_chars && StartFrom <= len - len_chars )
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{
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HB_ISIZ x;
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HB_ISIZ counter = 0;
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for( x = StartFrom; x <= ( len - len_chars ); x++ )
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{
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if( strncmp( pszString + x, pszChars, len_chars ) == 0 )
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{
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if( ++counter == Target )
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return x + 1;
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}
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}
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}
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return 0;
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}
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/*----------------------------------------------------------------------*/
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static HB_ISIZ ide_getword( const char * pszText, HB_BOOL bHonorSpacing, char * pszWord, HB_ISIZ * pnpos )
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{
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static const char s_szGood[] = "''_ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890.";
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static const char * s_szDoubleList[] = { "*/", "/*", "//", "->", "::", "||", "++", "--", "**", ":=",
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"<=", ">=", "<>", "!=", "==", "+=", "-=", "*=", "/=", "%=",
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"^=", "&&", "^^", ">>", "<<", "=>", "&=", "|=" };
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static HB_ISIZ s_lengood = HB_SIZEOFARRAY( s_szGood ) - 1;
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static HB_ISIZ s_lendouble = HB_SIZEOFARRAY( s_szDoubleList );
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HB_ISIZ maxlen = strlen( pszText );
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HB_ISIZ npos = 0;
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HB_ISIZ wordlen = 0;
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if( maxlen > 0 )
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{
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char temp;
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char ch;
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char szSingle[ 2 ];
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char szDouble[ 3 ];
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szSingle[ 1 ] = '\0';
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szDouble[ 2 ] = '\0';
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ch = pszText[ 0 ];
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if( ch == ',' ) /* lists */
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{
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pszWord[ wordlen++ ] = ch;
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npos++;
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}
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else /* literals */
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{
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if( ch == '"' || ch == '\'' )
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{
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temp = ch;
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pszWord[ wordlen++ ] = ch;
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npos++;
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ch = ' ';
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while( npos < maxlen && ch != temp )
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{
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ch = pszText[ npos ];
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pszWord[ wordlen++ ] = ch;
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npos++;
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}
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}
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else
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{
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szSingle[ 0 ] = ch;
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if( ide_atbuff( szSingle, s_szGood, 0, 1, 1, s_lengood ) ) /* ch $ s_szGood ) // variables, commands, function names */
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{
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while( npos < maxlen && ide_atbuff( szSingle, s_szGood, 0, 1, 1, s_lengood ) )
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{
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pszWord[ wordlen++ ] = ch;
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npos++;
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ch = pszText[ npos ];
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szSingle[ 0 ] = ch;
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}
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}
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else if( ch == ' ' )
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{
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while( npos < maxlen && ch == ' ' )
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{
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pszWord[ wordlen++ ] = ch;
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npos++;
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ch = pszText[ npos ];
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}
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if( ! bHonorSpacing )
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{
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pszWord[ 0 ] = ' '; /* reduce spaces to 1 */
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wordlen = 1;
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}
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}
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else /* operators, punctuation */
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{
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pszWord[ wordlen++ ]= ch;
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npos++;
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ch = pszText[ npos ];
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if( maxlen > npos )
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{
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szDouble[ 0 ] = pszWord[ 0 ];
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szDouble[ 1 ] = ch;
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if( ide_linearfind( s_szDoubleList, szDouble, s_lendouble, 2, HB_TRUE ) ) /* if( (pszWord + ch) $ s_szDoubleList) //aScan( s_szDoubleList, pszWord + ch ) > 0 */
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{
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pszWord[ wordlen++ ] = ch;
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npos++;
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}
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}
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}
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}
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}
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}
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pszWord[ wordlen ] = '\0';
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*pnpos = npos;
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return wordlen;
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}
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/*----------------------------------------------------------------------*/
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HB_FUNC( PARSEXPR ) /* ( c, bHonorSpacing, bInRemark, bUpperKeyWord, bKeepComments, bPRG, bKeepSpaces ) */
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{
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const char * pszExpr = hb_parcx( 1 );
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PHB_ITEM paExpr = hb_itemArrayNew( 0 );
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PHB_ITEM pTemp = hb_itemNew( NULL );
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HB_BOOL bHonorSpacing = hb_parl( 2 );
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HB_BOOL bInRemark = hb_parl( 3 );
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HB_BOOL bKeepComments = hb_parldef( 5, 1 );
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HB_BOOL bPRG = hb_parldef( 6, 1 );
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HB_BOOL bKeepSpaces = hb_parldef( 7, 1 );
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HB_BOOL bFirst = HB_TRUE;
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HB_ISIZ lenprocessed = 0;
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HB_ISIZ lenwords = 0;
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HB_ISIZ wordlen;
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HB_ISIZ npos;
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char szNextWord[ 2048 ];
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szNextWord[ 0 ] = '\0';
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while( ( wordlen = ide_getword( pszExpr, bHonorSpacing, szNextWord, &lenprocessed ) ) != 0 )
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{
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pszExpr += lenprocessed;
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if( strncmp( szNextWord, "*/", 3 ) == 0 ) /* remark end */
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{
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if( bKeepComments )
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{
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lenwords++;
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hb_arrayAdd( paExpr, hb_itemPutC( pTemp, szNextWord ) );
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}
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bInRemark = HB_FALSE;
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}
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else if( ( strncmp( szNextWord, "/*", 3 ) == 0 ) || bInRemark ) /* remark start */
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{
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bInRemark = ( ( npos = ide_atbuff( "*/", pszExpr, 0, 1, 2, strlen( pszExpr ) ) ) == 0 );
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if( bInRemark )
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{
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if( bKeepComments )
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{
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hb_strncat( szNextWord, pszExpr, sizeof( szNextWord ) - 1 );
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lenwords++;
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hb_arrayAdd( paExpr, hb_itemPutC( pTemp, szNextWord ) );
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}
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break;
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}
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else
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{
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if( bKeepComments )
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{
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hb_strncpy( szNextWord + wordlen, pszExpr, sizeof( szNextWord ) - 1 - wordlen );
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lenwords++;
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hb_arrayAdd( paExpr, hb_itemPutC( pTemp, szNextWord ) );
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}
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pszExpr += npos + 1;
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}
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}
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else if( strncmp( szNextWord, "//", 3 ) == 0 || ( bPRG && strncmp( szNextWord, "&&", 3 ) == 0 ) ) /* inline remark */
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{
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if( bKeepComments )
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{
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hb_strncat( szNextWord, pszExpr, sizeof( szNextWord ) - 1 );
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lenwords++;
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hb_arrayAdd( paExpr, hb_itemPutC( pTemp, szNextWord ) );
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}
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break;
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}
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else if( strncmp( szNextWord, "**", 3 ) == 0 && bFirst && bPRG )
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{
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if( bKeepComments )
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{
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hb_strncat( szNextWord, pszExpr, sizeof( szNextWord ) - 1 );
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lenwords++;
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hb_arrayAdd( paExpr, hb_itemPutC( pTemp, szNextWord ) );
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}
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break;
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}
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else
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{
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if( bKeepSpaces || ! ide_strempty( szNextWord ) )
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{
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lenwords++;
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hb_arrayAdd( paExpr, hb_itemPutC( pTemp, szNextWord ) );
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}
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}
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if( ! ide_strempty( szNextWord ) )
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bFirst = HB_FALSE;
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}
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if( ! bKeepComments && !( lenwords > 0 ) && hb_arrayGetCPtr( paExpr, lenwords ) )
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hb_arraySize( paExpr, lenwords );
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hb_storl( bInRemark, 3 );
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hb_itemRelease( pTemp );
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hb_itemReturnRelease( paExpr );
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}
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/*----------------------------------------------------------------------*/
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