/*********************************************************************
* Copyright (c) 1999, Frank Warmerdam
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
********************************************************************/
package com.bbn.openmap.dataAccess.iso8211;
import com.bbn.openmap.layer.vpf.MutableInt;
public class DDFUtils {
/** ********************************************************************* */
/* DDFScanVariable() */
/* */
/* Establish the length of a variable length string in a */
/* record. */
/** ********************************************************************* */
public static int scanVariable(byte[] pszRecord, int nMaxChars,
char nDelimChar) {
int i;
for (i = 0; i < nMaxChars - 1 && pszRecord[i] != nDelimChar; i++) {
}
return i;
}
/** ********************************************************************* */
/* DDFFetchVariable() */
/* */
/* Fetch a variable length string from a record, and allocate */
/* it as a new string (with CPLStrdup()). */
/** ********************************************************************* */
public static String fetchVariable(byte[] pszRecord, int nMaxChars,
char nDelimChar1, char nDelimChar2,
MutableInt pnConsumedChars) {
int i;
for (i = 0; i < nMaxChars - 1 && pszRecord[i] != nDelimChar1
&& pszRecord[i] != nDelimChar2; i++) {
}
pnConsumedChars.value = i;
if (i < nMaxChars
&& (pszRecord[i] == nDelimChar1 || pszRecord[i] == nDelimChar2)) {
pnConsumedChars.value++;
}
byte[] pszReturnBytes = new byte[i];
System.arraycopy(pszRecord, 0, pszReturnBytes, 0, i);
return new String(pszReturnBytes);
}
}