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diff --git a/bnfc/modelica33r1_spec.txt b/bnfc/modelica33r1_spec.txt
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-# These come directly the Modelica 3.3 Spec, Appendix B
-
-## B.1 Lexical Convetions
-
-IDENT = NONDIGIT { DIGIT | NONDIGIT } | Q-IDENT
-Q-IDENT = "’" ( Q-CHAR | S-ESCAPE ) { Q-CHAR | S-ESCAPE } "’"
-NONDIGIT = "_" | letters "a" to "z" | letters "A" to "Z"
-STRING = """ { S-CHAR | S-ESCAPE } """
-S-CHAR = any member of the Unicode character set (http://www.unicode.org; see Section 13.2.2 for storing as UTF-8 on files) except double-quote """, and backslash "\"
-Q-CHAR = NONDIGIT | DIGIT | "!" | "#" | "$" | "%" | "&" | "(" | ")" | "*" | "+" | "," | "-" | "." | "/" | ":" | ";" | "<" | ">" | "=" | "?" | "@" | "[" | "]" | "^" | "{" | "}" | "|" | "~" | " "
-S-ESCAPE = "\’" | "\"" | "\?" | "\\" | "\a" | "\b" | "\f" | "\n" | "\r" | "\t" | "\v"
-DIGIT = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9"
-UNSIGNED_INTEGER = DIGIT { DIGIT }
-UNSIGNED_NUMBER = UNSIGNED_INTEGER [ "." [ UNSIGNED_INTEGER ] ] [ ( "e" | "E" ) [ "+" | "-" ] UNSIGNED_INTEGER ]
-
-## B.2 Grammar
-
-### B.2.1 
-
-stored_definition:
-    [ within [ name ] ";" ]
-    { [ final ] class_definition ";" }
-
-### B.2.2 Class Definition
-
-class_definition :
-    [ encapsulated ] class_prefixes
-    class_specifier
-
-class_prefixes :
-    [ partial ]
-    ( class | model | [ operator ] record | block | [ expandable ] connector | type |
-    package | [ ( pure | impure ) ] [ operator ] function | operator )
-
-class_specifier :
-    long_class_specifier | short_class_specifier | der_class_specifier
-
-long_class_specifier :
-    IDENT string_comment composition end IDENT
-    | extends IDENT [ class_modification ] string_comment composition
-              end IDENT
-
-short_class_specifier :
-    IDENT "=" base_prefix name [ array_subscripts ]
-    [ class_modification ] comment
-    | IDENT "=" enumeration "(" ( [enum_list] | ":" ) ")" comment
-
-der_class_specifier :
-    IDENT "=" der "(" name "," IDENT { "," IDENT } ")" comment
-
-base_prefix :
-    type_prefix
-
-enum_list :
-    enumeration_literal { "," enumeration_literal}
-
-enumeration_literal :
-    IDENT comment
-
-composition :
-    element_list
-    { public element_list |
-    protected element_list |
-    equation_section |
-    algorithm_section
-    }
-    [ external [ language_specification ]
-    [ external_function_call ] [ annotation ] ";" ]
-    [ annotation ";" ]
-
-language_specification :
-    STRING
-
-external_function_call :
-    [ component_reference "=" ]
-    IDENT "(" [ expression_list ] ")"
-
-element_list :
-    { element ";" }
-
-element :
-    import_clause |
-    extends_clause |
-    [ redeclare ]
-    [ final ]
-    [ inner ] [ outer ]
-    ( ( class_definition | component_clause) |
-    replaceable ( class_definition | component_clause)
-    [constraining_clause comment])
-
-import_clause :
-    import ( IDENT "=" name | name ["." ( "*" | "{" import_list "}" ) ] ) comment
-
-import_list :
-    IDENT { "," IDENT }
-
-### B.2.3 Extends
-
-extends_clause :
-    extends name [ class_modification ] [annotation]
-
-constraining_clause :
-    constrainedby name [ class_modification ]
-
-### B.2.4 Component Clause
-
-component_clause:
-    type_prefix type_specifier [ array_subscripts ] component_list
-    type_prefix :
-    [ flow | stream ]
-    [ discrete | parameter | constant ] [ input | output ]
-
-type_specifier :
-    name
-
-component_list :
-    component_declaration { "," component_declaration }
-
-component_declaration :
-    declaration [ condition_attribute ] comment
-
-condition_attribute:
-    if expression
-
-declaration :
-    IDENT [ array_subscripts ] [ modification ]
-
-### B.2.5 Modification
-
-modification :
-    class_modification [ "=" expression ]
-    | "=" expression
-    | ":=" expression
-
-class_modification :
-    "(" [ argument_list ] ")"
-
-argument_list :
-    argument { "," argument }
-
-argument :
-    element_modification_or_replaceable
-    | element_redeclaration
-    element_modification_or_replaceable:
-    [ each ] [ final ] ( element_modification | element_replaceable)
-
-element_modification :
-    name [ modification ] string_comment
-
-element_redeclaration :
-    redeclare [ each ] [ final ]
-    ( ( short_class_definition | component_clause1) | element_replaceable )
-
-element_replaceable:
-    replaceable ( short_class_definition | component_clause1)
-    [constraining_clause]
-
-component_clause1 :
-    type_prefix type_specifier component_declaration1
-
-component_declaration1 :
-    declaration comment
-
-short_class_definition :
-    class_prefixes short_class_specifier
-
-### B.2.6 Equations
-
-equation_section :
-    [ initial ] equation { equation ";" }
-
-algorithm_section :
-    [ initial ] algorithm { statement ";" }
-
-equation :
-    ( simple_expression "=" expression
-    | if_equation
-    | for_equation
-    | connect_clause
-    | when_equation
-    | name function_call_args )
-    comment
-
-statement :
-    ( component_reference ( ":=" expression | function_call_args )
-    | "(" output_expression_list ")" ":=" component_reference function_call_args
-    | break
-    | return
-    | if_statement
-    | for_statement
-    | while_statement
-    | when_statement )
-    comment
-
-if_equation :
-    if expression then
-      { equation ";" }
-    { elseif expression then
-      { equation ";" }
-    }
-    [ else
-      { equation ";" }
-    ]
-    end if
-
-if_statement :
-    if expression then
-    { statement ";" }
-    { elseif expression then
-    { statement ";" }
-    }
-    [ else
-      { statement ";" }
-    ]
-    end if
-
-for_equation :
-    for for_indices loop
-    { equation ";" }
-    end for
-
-for_statement :
-    for for_indices loop
-    { statement ";" }
-    end for
-
-for_indices :
-    for_index {"," for_index}
-
-for_index:
-    IDENT [ in expression ]
-    while_statement :
-    while expression loop
-    { statement ";" }
-    end while
-
-when_equation :
-    when expression then
-    { equation ";" }
-    { elsewhen expression then
-    { equation ";" } }
-    end when
-
-when_statement :
-    when expression then
-    { statement ";" }
-    { elsewhen expression then
-    { statement ";" } }
-    end when
-
-connect_clause :
-    connect "(" component_reference "," component_reference ")"
-
-### B.2.7 Expressions
-
-expression :
-    simple_expression
-    | if expression then expression { elseif expression then expression }
-    else expression
-
-simple_expression :
-    logical_expression [ ":" logical_expression [ ":" logical_expression ] ]
-
-logical_expression :
-    logical_term { or logical_term }
-
-logical_term :
-    logical_factor { and logical_factor }
-
-logical_factor :
-    [ not ] relation
-
-relation :
-    arithmetic_expression [ rel_op arithmetic_expression ]
-
-rel_op :
-    "<" | "<=" | ">" | ">=" | "==" | "<>"
-
-arithmetic_expression :
-    [ add_op ] term { add_op term }
-
-add_op :
-    "+" | "-" | ".+" | ".-"
-
-term :
-    factor { mul_op factor }
-
-mul_op :
-    "*" | "/" | ".*" | "./"
-
-factor :
-    primary [ ("^" | ".^") primary ]
-
-primary :
-    UNSIGNED_NUMBER
-    | STRING
-    | false
-    | true
-    | ( name | der | initial ) function_call_args
-    | component_reference
-    | "(" output_expression_list ")"
-    | "[" expression_list { ";" expression_list } "]"
-    | "{" function_arguments "}"
-    | end
-
-name :
-    [ "." ] IDENT { "." IDENT }
-
-component_reference :
-    [ "." ] IDENT [ array_subscripts ] { "." IDENT [ array_subscripts ] }
-
-function_call_args :
-    "(" [ function_arguments ] ")"
-    function_arguments :
-    function_argument [ "," function_arguments | for for_indices ]
-    | named_arguments
-
-named_arguments:
-    named_argument [ "," named_arguments ]
-
-named_argument:
-    IDENT "=" function_argument
-
-function_argument :
-    function name "(" [ named_arguments ] ")" | expression
-
-output_expression_list:
-    [ expression ] { "," [ expression ] }
-
-expression_list :
-    expression { "," expression }
-
-array_subscripts :
-    "[" subscript { "," subscript } "]"
-
-subscript :
-    ":" | expression
-
-comment :
-    string_comment [ annotation ]
-
-string_comment :
-    [ STRING { "+" STRING } ]
-
-annotation :
-    annotation class_modification
-