in src/main/java/org/apache/commons/csv/Lexer.java [75:86]
private void appendNextEscapedCharacterToToken(final Token token) throws IOException {
if (isEscapeDelimiter()) {
token.content.append(delimiter);
} else {
final int unescaped = readEscape();
if (unescaped == EOF) { // unexpected char after escape
token.content.append((char) escape).append((char) reader.getLastChar());
} else {
token.content.append((char) unescaped);
}
}
}