public static String convertNamePatternList(String patternList) {
        return convertNamePatternList(patternList, null, true);
    }
Take a string that represents a list of patterns, possibly a mixture of
regular expressions and Ant-style patterns, and return a single regular
expression that matches any of the alternatives.

To allow users to target some parts of the filter list to some fields on
the object to which the pattern is ultimately applied, it is possible to
prefix patterns in the list with fieldName=pattern, and then the pattern
can be excluded from use on unrelated fields.

@param patternList the pattern list specification to convert

@return the combined pattern, or null if there is are no patterns for
the field.

@throws PatternSyntaxException if any of the individual patterns fails
to compile as a regular expression.
src/main/java/io/fabric8/maven/docker/util/NamePatternUtil.java