antlr-language-limit-n-regexpantlr-language-limit-n-regexp is a variable defined in `
antlr-mode.el'. Its value is
(8192 . "language[ ]*=[ ]*\\(\"?[A-Z][A-Za-z_]*\"?\\)")Documentation: Used to set a reasonable value for `antlr-language'. Looks like (LIMIT . REGEXP). Search for REGEXP from the beginning of the buffer to LIMIT and use the first group in the matched string to set the language according to `antlr-language-alist'. You can customize this variable.