AutomatonParserSpec.java 文件源码

private void initAutomataWithCustomHeader(String body, boolean allowMatchingEmptySequences, String header) {
    try {

        body = header + body;

        CharStream input = CharStreams.fromString(body);
        UimaTokenRegexParser parser = initListenerAndGetParser(input, new URL("file://dynamic.text"));
        parser.removeErrorListeners();
        parser.addErrorListener(new ThrowingErrorListener(new URL("file://dynamic.text")));

        listener.setAllowMatchingEmptySequences(allowMatchingEmptySequences);
        ParseTreeWalker.DEFAULT.walk(listener, parser.ruleList());
        this.rules = listener.getRules();
    } catch(MalformedURLException e) {
        throw new RuntimeException(e);
    }
}