improve command parsing * lex.ll (COMMAND_START): Now exclusive. Make all debug strings match patterns for COMMAND_START patterns. (<COMMAND_START>[\(\[\{]*): Match zero or more, not one or more. (<COMMAND_START>[\)\]\}]*): Likewise. (<COMMAND_START>{S}*): Likewise. (<COMMAND_START>([\.]|[^#% \t\r\n\.\,\;\"\'\(\[\{\}\]\)]*): Likewise. * command.tst: New file.

gnulib-hg = gnulib-hg