metadata->settings in drscheme:language:language<%>

• (send a-drscheme:language:language metadata->settings metadata) -> settings
     metadata : string

  This method is only called when get-reader-module returns an sexp.

  When a file is opened in DrScheme, if this language's get-reader-module returns an sexp, the prefix of the file (the first N lines, where N is the number returned by get-metadata-lines) is scanned for "#reader" followed by the result of get-reader-module. If that pattern is found, the language is set to this language. Also, the entire prefix is passed, as a string, to this method which returns a settings value, used as the settings for this language.