The generated parser class qualified name.
Can be used several times in a large grammar to split parsing code into different classes and files.
Examples:
{
classHeader="license.txt"
parserClass="org.intellij.grammar.parser.GrammarParser"
parserUtilClass="org.intellij.grammar.parser.GrammarParserUtil"
}
...
// parsing code for the rest of the grammar will be in a separate file
// (semicolon is required to make this attributes global for sure)
;{
parserClass="org.intellij.grammar.parser.GrammarParser2"
}