@param s_nullValue The special string to be defined as (truly) null, when the <I>first line</I> of a value is equal to it. May not be null or zero characters in length. See <A HREF="#getNullValue()">getNullValue</A>.
@param b_1stLineWSIsEmptyString If the first line of a variable's value is nothing but whitespace, should it be considered as empty string? See <A HREF="#is1stLineWSEmptyString()">is1stLineWSEmptyString</A>.
**/
public CRCVariable(CRCVTrim crcv_trim, CRCVUnescape crcv_unescape, String s_nullValue, boolean b_1stLineWSIsEmptyString) {
SOBString ssNV = new SOBString(s_nullValue);
ZCICharErr cice = new ZCICharErr();
try {
if(crcv_trim.doUseESChar()) {
cice.ciCharErr(crcv_trim.getESChar(), "crcv_trim.getESChar()", crcv_unescape, ssNV);