public boolean isHeading() {
            return tag.length() == 2 && tag.startsWith("h");
        }
Determines if character run should be included in the extraction.

@param cr character run.
@return true if character run should be included in extraction.
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-microsoft-module/src/main/java/org/apache/tika/parser/microsoft/WordExtractor.java