Treetop always want more, but I am out of stock!

[EternalFury]

No matter what I try, I always get something like:

Consumed 0 characters.

Line: 19

Column: 1

, ason: Expected one of ,, any character, 

, " at line 19, column 1 (byte 394) after Chapter: "The beginning of the end"

  Action: unlock_grate

    Terms:

      "unlock grate, open grate"

    Processor:

      {{{

        if !player_in?('depression')

          ['There is no grate here.', {}]

        elsif !player_has?('keys')

          ['You have no keys!', {}]

        else

          ['The grate is now unlocked.', {:grate_unlocked => true}]

        end

      }}}

  end

end

Sample input:

Chapter: "The beginning of the end"

  Action: unlock_grate

    Terms:

      "unlock grate, open grate"

    Processor:

      {{{

        if !player_in?('depression')

          ['There is no grate here.', {}]

        elsif !player_has?('keys')

          ['You have no keys!', {}]

        else

          ['The grate is now unlocked.', {:grate_unlocked => true}]

        end

      }}}

  end

end

grammar TheFates

  #

  # Interactive Fiction

  #

  rule interactive_fiction

    chapter (white_space chapter)*

  end

  #

  # Chapter

  #

  rule chapter

    chapter_header white_space actions 'end' !not_space_or_tab

  end

  rule chapter_header

    'Chapter:' space_or_tab quoted_string end_of_line

  end

  #

  # Actions

  #

  rule actions

    action white_space+ actions white_space+ 'end' !not_space_or_tab

  end

  rule action

    action_header white_space+ terms white_space+ processor

  end

  rule action_header

    'Action:' space_or_tab+ identifier end_of_line

  end

  rule terms

    'Terms:' white_space+ term_list

  end

  rule processor

    'Processor:' white_space+ '{{{' code '}}}'

  end

  rule code

    !'}}}'

    (. / white_space)+

  end

  # Low-level constructs

  rule alphanumeric_character

    alphabetical_character / [0-9]

  end

  rule alphabetical_character

    [A-Za-z_]

  end

  rule comment_to_end_of_line

    '#' characters_to_end_of_line

  end

  rule characters_to_end_of_line

    (!end_of_line .)*

  end

  rule description

    'Description:' white_space+ quoted_string

  end

  rule identifier

    [a-zA-Z] [a-zA-Z0-9_]*

  end

  rule quoted_string

    single_quoted_string / double_quoted_string

  end

  rule double_quoted_string

    '"' (!'"' ("\\\\" / '\"' / .))* '"'

  end

  rule single_quoted_string

    "'" (!"'" ("\\\\" / "\\'" / .))* "'"

  end

  rule term_list

    '"' term  (white_space* ',' white_space* term)*  '"'

  end

  rule term

    (!',' .)+

  end

  # White space

  rule white_space

    (space_or_tab / end_of_line)+

  end

  rule not_space_or_tab

    !space_or_tab .

  end

  rule space_or_tab

    [ \t]

  end

  rule end_of_line

    ("\r" "\n"?) / "\n"

  end

end

[Justin Collins]

#SNIP

>   rule not_space_or_tab
>     !space_or_tab .
>   end
>
>   rule space_or_tab
>     [ \t]
>   end
>
>   rule end_of_line
>     ("\r" "\n"?) / "\n"
>   end
>
> end

The double negation of "!not_space_or_tab" makes me suspicious. It
looks
like it is expecting a space or a tab?

I would start there. Either add a space to the end of your file or
remove the negation, and see what happens.

Good luck.

-Justin