Line data    Source code

       1             : /******************************************************************************
       2             :  *
       3             :  * Project:  ISO 8211 Access
       4             :  * Purpose:  Various utility functions.
       5             :  * Author:   Frank Warmerdam, warmerdam@pobox.com
       6             :  *
       7             :  ******************************************************************************
       8             :  * Copyright (c) 1999, Frank Warmerdam
       9             :  *
      10             :  * Permission is hereby granted, free of charge, to any person obtaining a
      11             :  * copy of this software and associated documentation files (the "Software"),
      12             :  * to deal in the Software without restriction, including without limitation
      13             :  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      14             :  * and/or sell copies of the Software, and to permit persons to whom the
      15             :  * Software is furnished to do so, subject to the following conditions:
      16             :  *
      17             :  * The above copyright notice and this permission notice shall be included
      18             :  * in all copies or substantial portions of the Software.
      19             :  *
      20             :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
      21             :  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      22             :  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
      23             :  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      24             :  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
      25             :  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
      26             :  * DEALINGS IN THE SOFTWARE.
      27             :  ****************************************************************************/
      28             : 
      29             : #include "cpl_port.h"
      30             : #include "iso8211.h"
      31             : 
      32             : #include <cstdlib>
      33             : #include <cstring>
      34             : 
      35             : #include "cpl_conv.h"
      36             : 
      37             : /************************************************************************/
      38             : /*                             DDFScanInt()                             */
      39             : /*                                                                      */
      40             : /*      Read up to nMaxChars from the passed string, and interpret      */
      41             : /*      as an integer.                                                  */
      42             : /************************************************************************/
      43             : 
      44       24112 : int DDFScanInt(const char *pszString, int nMaxChars)
      45             : 
      46             : {
      47       24112 :     char szWorking[33] = {};
      48             : 
      49       24112 :     if (nMaxChars > 32 || nMaxChars == 0)
      50           0 :         nMaxChars = 32;
      51             : 
      52       24112 :     memcpy(szWorking, pszString, nMaxChars);
      53       24112 :     szWorking[nMaxChars] = '\0';
      54             : 
      55       24112 :     return atoi(szWorking);
      56             : }
      57             : 
      58             : /************************************************************************/
      59             : /*                          DDFScanVariable()                           */
      60             : /*                                                                      */
      61             : /*      Establish the length of a variable length string in a           */
      62             : /*      record.                                                         */
      63             : /************************************************************************/
      64             : 
      65           0 : int DDFScanVariable(const char *pszRecord, int nMaxChars, int nDelimChar)
      66             : 
      67             : {
      68           0 :     int i = 0;  // Used after for.
      69             : 
      70           0 :     for (; i < nMaxChars - 1 && pszRecord[i] != nDelimChar; i++)
      71             :     {
      72             :     }
      73             : 
      74           0 :     return i;
      75             : }
      76             : 
      77             : /************************************************************************/
      78             : /*                          DDFFetchVariable()                          */
      79             : /*                                                                      */
      80             : /*      Fetch a variable length string from a record, and allocate      */
      81             : /*      it as a new string (with CPLStrdup()).                          */
      82             : /************************************************************************/
      83             : 
      84        5868 : char *DDFFetchVariable(const char *pszRecord, int nMaxChars, int nDelimChar1,
      85             :                        int nDelimChar2, int *pnConsumedChars)
      86             : 
      87             : {
      88        5868 :     int i = 0;  // Used after for.
      89      139383 :     for (; i < nMaxChars - 1 && pszRecord[i] != nDelimChar1 &&
      90      133515 :            pszRecord[i] != nDelimChar2;
      91             :          i++)
      92             :     {
      93             :     }
      94             : 
      95        5868 :     *pnConsumedChars = i;
      96        5868 :     if (i < nMaxChars &&
      97        5527 :         (pszRecord[i] == nDelimChar1 || pszRecord[i] == nDelimChar2))
      98        5527 :         (*pnConsumedChars)++;
      99             : 
     100        5868 :     char *pszReturn = static_cast<char *>(CPLMalloc(i + 1));
     101        5868 :     pszReturn[i] = '\0';
     102        5868 :     strncpy(pszReturn, pszRecord, i);
     103             : 
     104        5868 :     return pszReturn;
     105             : }