123 lines
3.6 KiB
Plaintext
123 lines
3.6 KiB
Plaintext
/*
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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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* CT_NUMTOKEN() and CT_TOKEN() CA-Tools function
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*
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* Copyright 2000 Phil Barnett <philb@iag.net>
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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 of the License, or
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* (at your option) any later version, with one exception:
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*
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* The exception is that if you link the Harbour Runtime Library (HRL)
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* and/or the Harbour Virtual Machine (HVM) with other files to produce
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* an executable, this does not by itself cause the resulting executable
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* to be covered by the GNU General Public License. Your use of that
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* executable is in no way restricted on account of linking the HRL
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* and/or HVM code into it.
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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 program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA (or visit
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* their web site at http://www.gnu.org/).
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*
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*/
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#include "common.ch"
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// This is used to get a count of how many tokens are in a string based
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// on the supplied delimiter. This defaults to the same delimiters as
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// used in the like named function in Clipper Tools III, so it should
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// work identically.
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function CT_NUMTOKEN( cString, cDelimiter )
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local x
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local nStrLen := len( cString )
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local nHowMany := 0
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local lFoundWord := .F.
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local retval := 0
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DEFAULT cDelimiter TO ' ,.;:!?/\<>()^#&%+-*' + chr( 0 ) + chr( 9 ) + ;
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chr( 10 ) + chr( 13 ) + ;
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chr( 26 ) + chr( 138 ) + ;
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chr( 141 )
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for x := 1 to nStrLen
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if substr( cString, x, 1 ) $ cDelimiter
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if lFoundWord
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nHowMany++
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endif
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do while x < nStrLen .and. substr( cString, x + 1, 1 ) $ cDelimiter
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x++
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enddo
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else
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lFoundWord := .T.
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endif
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next
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if nStrLen > 0
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retval := iif( right( cString, 1 ) $ cDelimiter, nHowmany, nHowMany + 1 )
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endif
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return retval
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// This is used to extract each token from the string based on the
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// delimiter and the numeric pointer which tells us which token to
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// return.
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// This defaults to the same delimiters as used in the like named
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// function in Clipper Tools III, so it should work identically.
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function CT_TOKEN( cString, cDelimiter, nPointer )
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local x
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local nStrLen := len( cString )
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local nHowMany := 0
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local nLastPointer := 0
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local cPart
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local lFoundWord := .F.
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DEFAULT cDelimiter TO ' ,.;:!?/\<>()^#&%+-*' + chr( 0 ) + chr( 9 ) + ;
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chr( 10 ) + chr( 13 ) + ;
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chr( 26 ) + chr( 138 ) + ;
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chr( 141 )
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for x := 1 to nStrLen
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if substr( cString, x, 1 ) $ cDelimiter
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if lFoundWord
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nHowMany++
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endif
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if nHowMany == nPointer
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exit
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endif
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do while x < nStrLen .and. substr( cString, x + 1, 1 ) $ cDelimiter
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x++
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enddo
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nLastPointer := x
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else
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lFoundWord := .T.
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endif
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next
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// went all the way without nHowmany == nPointer
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if x == nStrLen + 1
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// take the last word
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cPart := substr( cString, nLastPointer + 1 )
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else
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cPart := substr( cString, nLastPointer + 1, ( x - nLastPointer ) - 1 )
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endif
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return cPart
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