currentIndex++;
currentChar = pattern.charAt(currentIndex);
switch (currentChar) {
case CLIENT_ID_CONVERSION_CHAR:
converterVector.addElement(new ClientIdFormatCommand());
break;
case CATEGORY_CONVERSION_CHAR:
CategoryFormatCommand categoryFormatCommand = new CategoryFormatCommand();
String specifier = extraxtSpecifier(pattern, currentIndex);
int specifierLength = specifier.length();