grammar scpi;
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terminatedProgramMessage
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: programMessage NL? EOF
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;
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programMessage
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: programMessageUnit (SEMICOLON programMessageUnit)*
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;
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programMessageUnit
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: WS* programHeader QUESTION? (WS programData (COMMA programData)*)?
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;
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programHeader
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: compoundProgramHeader
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| commonProgramHeader
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;
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compoundProgramHeader
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: COLON? PROGRAM_MNEMONIC (COLON PROGRAM_MNEMONIC)*
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;
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commonProgramHeader
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: STAR PROGRAM_MNEMONIC
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;
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programDataSeparator
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: WS*
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;
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programData
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: WS* programDataType WS*
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;
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programDataType
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: nondecimalNumericProgramData
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| characterProgramData
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| decimalNumericProgramData
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| stringProgramData
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// | arbitraryBlockProgramData
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| expressionProgramData
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// | suffixProgramData
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;
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nondecimalNumericProgramData
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: HEXNUM
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| OCTNUM
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| BINNUM
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;
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characterProgramData
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: PROGRAM_MNEMONIC
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;
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decimalNumericProgramData
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: DECIMAL_NUMERIC_PROGRAM_DATA_WITH_SUFFIX
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;
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//suffixProgramData
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// : PROGRAM_MNEMONIC//SUFFIX_PROGRAM_DATA
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// ;
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stringProgramData
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: SINGLE_QUOTE_PROGRAM_DATA
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| DOUBLE_QUOTE_PROGRAM_DATA
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;
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expressionProgramData
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: PROGRAM_EXPRESSION
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;
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PROGRAM_MNEMONIC : ALPHA (ALPHA | DIGIT | UNDERSCORE)*;
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HEXNUM : SHARP H HEXDIGIT*;
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BINNUM : SHARP Q OCTDIGIT*;
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OCTNUM : SHARP B BINDIGIT*;
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UNDERSCORE : '_';
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SEMICOLON : ';';
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QUESTION : '?';
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COLON : ':';
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COMMA : ',';
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STAR : '*';
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NL : '\r'? '\n' ;
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WS : (SPACE | TAB);
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DECIMAL_NUMERIC_PROGRAM_DATA_WITH_SUFFIX : DECIMAL_NUMERIC_PROGRAM_DATA WS* (SUFFIX_PROGRAM_DATA)?;
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fragment DECIMAL_NUMERIC_PROGRAM_DATA : MANTISA WS* (EXPONENT)?;
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SINGLE_QUOTE_PROGRAM_DATA : SINGLE_QUOTE ( (NON_SINGLE_QUOTE) | (SINGLE_QUOTE SINGLE_QUOTE))* SINGLE_QUOTE;
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DOUBLE_QUOTE_PROGRAM_DATA : DOUBLE_QUOTE ( (NON_DOUBLE_QUOTE) | (DOUBLE_QUOTE DOUBLE_QUOTE))* DOUBLE_QUOTE;
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//SUFFIX_PROGRAM_DATA : SLASH? (ALPHA+ (MINUS? DIGIT)?) ((SLASH | DOT) (ALPHA+ (MINUS? DIGIT)?))*;
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fragment SUFFIX_PROGRAM_DATA : SLASH? ALPHA+ ((SLASH | DOT) ALPHA+)*;
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//fragment SUFFIX_PROGRAM_DATA : ALPHA+;
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fragment PROGRAM_EXPRESSION_CHARACTER : (SPACE | '!' | '$'..'&' | '*'..':' | '<' ..'~');
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PROGRAM_EXPRESSION : LBRACKET PROGRAM_EXPRESSION_CHARACTER RBRACKET;
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fragment PLUSMN : (PLUS | MINUS);
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fragment MANTISA : PLUSMN? ( (NUMBER) | (NUMBER DOT NUMBER?) | (DOT NUMBER));
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//fragment EXPONENT : WS* E WS* PLUSMN? NUMBER;
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fragment EXPONENT : E WS* PLUSMN? NUMBER;
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fragment NUMBER : DIGIT+;
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fragment LBRACKET : '(';
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fragment RBRACKET : ')';
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fragment ALPHA : ('a'..'z'|'A'..'Z');
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fragment DIGIT : ('0'..'9');
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fragment HEXDIGIT : (DIGIT | 'a'..'f' | 'A'..'F');
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fragment OCTDIGIT : ('0'..'7');
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fragment BINDIGIT : ('0' | '1');
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fragment SHARP : '#';
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fragment E : ('E'|'e');
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fragment H : ('H'|'h');
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fragment Q : ('Q'|'q');
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fragment B : ('B'|'b');
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fragment SPACE : ' ';
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fragment TAB : '\t';
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fragment PLUS : '+';
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fragment MINUS : '-';
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fragment DOT : '.';
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fragment SLASH : '/';
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fragment SINGLE_QUOTE : '\'';
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fragment DOUBLE_QUOTE : '"';
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fragment NON_SINGLE_QUOTE : ~SINGLE_QUOTE;
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fragment NON_DOUBLE_QUOTE : ~DOUBLE_QUOTE;
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