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16 lines
619 B
16 lines
619 B
range-set ::= range ( logical-or range ) * |
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logical-or ::= ( ' ' ) * '||' ( ' ' ) * |
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range ::= hyphen | simple ( ' ' simple ) * | '' |
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hyphen ::= partial ' - ' partial |
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simple ::= primitive | partial | tilde | caret |
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primitive ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial |
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partial ::= xr ( '.' xr ( '.' xr qualifier ? )? )? |
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xr ::= 'x' | 'X' | '*' | nr |
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nr ::= '0' | [1-9] ( [0-9] ) * |
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tilde ::= '~' partial |
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caret ::= '^' partial |
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qualifier ::= ( '-' pre )? ( '+' build )? |
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pre ::= parts |
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build ::= parts |
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parts ::= part ( '.' part ) * |
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part ::= nr | [-0-9A-Za-z]+
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