Program options syntax highlighting

[alx741]

More+Less present options with a (nice) highlighting so vim-man should too, here are some observations about the default vim man.vim syntax file.

• Default man.vim issues:
  • A lot of double hyphen options are not matched
  • Options in Synopsis and other sections are not matched (surrounded by [])
  • Options in the middle of other options description text are not matched
  • Commas after options are included in the match
• (For implement this in vim-man) Take into count:
  • Options are denoted by one or tho hyphens -
  • If any alphanumerical symbol precedes the hyphen it's probably not an
    Options but a two-components word
  • Possible characters in an Option: Upper and lower case letters,
    numbers, -, _, ? (See :Man man for and example of the last one)
  • alone - or -- are commands too (common for read from stdin )
• There is no special cases for man sections (?)

I'd like to know if I miss something or if something here is wrong; if this is correct an appropriate syntax match regex will do the job (?)