common/src/main/java/com/streamsets/pipeline/lib/parser/shaded/com/google/code/regexp/Pattern.java
static private boolean isEscapedChar(String s, int pos) {
        return isSlashEscapedChar(s, pos) || isQuoteEscapedChar(s, pos);
    }
static private boolean isEscapedChar(String s, int pos) {
        return isSlashEscapedChar(s, pos) || isQuoteEscapedChar(s, pos);
    }
Determines if the character at the specified position
of a string is escaped

@param s string to evaluate
@param pos the position of the character to evaluate
@return true if the character is escaped; otherwise false