@param c_escape The escape character.
@param ac_toEscape The array of charcters that can be escaped by c_escape (in addition to c_escape). Must be non-null. If at least one element in length, it must be ordered ascending, and its elements must be unique and not equal to c_escape. If zero elements in length, then c_escape may only escape itself.
**/
public ESConfig(char c_escape, char[] ac_toEscape) {
PACChar pacc = new PACChar(ac_toEscape,
new PARChar(
new PARDupNullLen(false),
new PAROrderDir(true),
new char[] {c_escape}));
pacc.crashIfBad("xbn.string.escape.UnescapeString.constructor", "ac_toEscape");