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document ::= (header NEWLINE)? (comment | record | empty-line) (NEWLINE (comment | record | empty-line))* NEWLINE? | header
header ::= OPENBRACK NOTCRLF*
comment ::= SEMICOLON NOTCRLF*
empty-line ::= WHITESPACE*
record ::= field (PIPE field)*
field ::= WHITESPACE* field-data WHITESPACE*
field-data ::= escaped | unescaped
escaped ::= DQUOTE (TEXTDATA | WHITESPACE | NEWLINE | PIPE | DQUOTE DQUOTE)* DQUOTE
unescaped ::= (TEXTDATA (WHITESPACE* (TEXTDATA | DQUOTE))*)?
HTAB ::= #x09
LF ::= #x0A
VTAB ::= #x0B
FF ::= #x0C
CR ::= #x0D
SPACE ::= #x20
DQUOTE ::= #x22
SEMICOLON ::= #x3B
OPENBRACK ::= #x5B
PIPE ::= #x7C
WHITESPACE ::= SPACE | FF | HTAB | VTAB
NOTCRLF ::= [#x00-#x09#x0B-#x0C#x0E-#x10FFFF]
TEXTDATA ::= [#x00-#x08#x0E-#x1F#x21#x23-#x5A#x5C-#x7B#x7D-#x10FFFF]
NEWLINE ::= CR LF?
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