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101 lines
4 KiB
C++
101 lines
4 KiB
C++
/******************************************************************************
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* $Id: ddfutils.cpp 10645 2007-01-18 02:22:39Z warmerdam $
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*
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* Project: ISO 8211 Access
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* Purpose: Various utility functions.
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* Author: Frank Warmerdam, warmerdam@pobox.com
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*
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******************************************************************************
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* Copyright (c) 1999, Frank Warmerdam
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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****************************************************************************/
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#include "iso8211.h"
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#include "cpl_conv.h"
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CPL_CVSID("$Id: ddfutils.cpp 10645 2007-01-18 02:22:39Z warmerdam $");
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/************************************************************************/
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/* DDFScanInt() */
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/* */
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/* Read up to nMaxChars from the passed string, and interpret */
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/* as an integer. */
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/************************************************************************/
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long DDFScanInt( const char * pszString, int nMaxChars )
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{
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char szWorking[33];
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if( nMaxChars > 32 || nMaxChars == 0 )
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nMaxChars = 32;
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memcpy( szWorking, pszString, nMaxChars );
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szWorking[nMaxChars] = '\0';
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return( atoi(szWorking) );
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}
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/************************************************************************/
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/* DDFScanVariable() */
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/* */
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/* Establish the length of a variable length string in a */
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/* record. */
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/************************************************************************/
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int DDFScanVariable( const char *pszRecord, int nMaxChars, int nDelimChar )
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{
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int i;
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for( i = 0; i < nMaxChars-1 && pszRecord[i] != nDelimChar; i++ ) {}
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return i;
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}
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/************************************************************************/
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/* DDFFetchVariable() */
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/* */
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/* Fetch a variable length string from a record, and allocate */
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/* it as a new string (with CPLStrdup()). */
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/************************************************************************/
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char * DDFFetchVariable( const char *pszRecord, int nMaxChars,
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int nDelimChar1, int nDelimChar2,
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int *pnConsumedChars )
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{
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int i;
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char *pszReturn;
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for( i = 0; i < nMaxChars-1 && pszRecord[i] != nDelimChar1
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&& pszRecord[i] != nDelimChar2; i++ ) {}
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*pnConsumedChars = i;
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if( i < nMaxChars
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&& (pszRecord[i] == nDelimChar1 || pszRecord[i] == nDelimChar2) )
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(*pnConsumedChars)++;
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pszReturn = (char *) CPLMalloc(i+1);
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pszReturn[i] = '\0';
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strncpy( pszReturn, pszRecord, i );
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return pszReturn;
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}
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