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support for real numbers

This commit is contained in:
Zachary Snow 2019-03-26 15:21:06 -04:00
parent 39f6bbb3d8
commit 6cc4654ad6
1 changed files with 6 additions and 0 deletions
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6
src/Language/SystemVerilog/Parser/Lex.x
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@ -27,12 +27,17 @@ $decimalDigit = [0-9]
@unsignedNumber = $decimalDigit ("_" | $decimalDigit)* @unsignedNumber = $decimalDigit ("_" | $decimalDigit)*
@sign = [\-\+]
@fixedPointNumber = @unsignedNumber "." @unsignedNumber
@floatingPointNumber = @unsignedNumber ("." @unsignedNumber)? [eE] @sign? @unsignedNumber
@size = @unsignedNumber " "? @size = @unsignedNumber " "?
@decimalNumber = @size? @decimalBase " "? @unsignedNumber @decimalNumber = @size? @decimalBase " "? @unsignedNumber
@binaryNumber = @size? @binaryBase " "? @binaryValue @binaryNumber = @size? @binaryBase " "? @binaryValue
@octalNumber = @size? @octalBase " "? @octalValue @octalNumber = @size? @octalBase " "? @octalValue
@hexNumber = @size? @hexBase " "? @hexValue @hexNumber = @size? @hexBase " "? @hexValue
@realNumber = @fixedPointNumber | @floatingPointNumber
@unbasedUnsizedLiteral = "'" ( 0 | 1 | x | X | z | Z ) @unbasedUnsizedLiteral = "'" ( 0 | 1 | x | X | z | Z )
@ -43,6 +48,7 @@ $decimalDigit = [0-9]
| @binaryNumber | @binaryNumber
| @hexNumber | @hexNumber
| @unbasedUnsizedLiteral | @unbasedUnsizedLiteral
| @realNumber
-- Strings -- Strings