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3.4 Line Terminators

Implementations next divide the sequence of Unicode input characters into lines by recognizing line terminators. This definition of lines determines the line numbers produced by a Java compiler or other system component. It also specifies the termination of the // form of a comment (§3.7).

    
   LineTerminator:
        
   the ASCII LF character, also known as "newline"
        
   the ASCII CR character, also known as "return"
        
   the ASCII CR character followed by the ASCII LF character

    
   InputCharacter:
        
   UnicodeInputCharacter 
   but not CR or LF
   

Lines are terminated by the ASCII characters CR , or LF , or CR LF . The two characters CR immediately followed by LF are counted as one line terminator, not two.

The result is a sequence of line terminators and input characters, which are the terminal symbols for the third step in the tokenization process.

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