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Simplify lexer rule for typed integers

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This commit is contained in:
Mikhail Zarechenskiy
2018-06-27 17:34:48 +03:00
parent e149cbe852
commit 173bcd90df
1 changed files with 4 additions and 3 deletions
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compiler/psi/src/org/jetbrains/kotlin/lexer/Kotlin.flex
+4 -3
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@@ -92,11 +92,12 @@ EOL_COMMENT="/""/"[^\n]*
SHEBANG_COMMENT="#!"[^\n]*
INTEGER_LITERAL={DECIMAL_INTEGER_LITERAL}|{HEX_INTEGER_LITERAL}|{BIN_INTEGER_LITERAL}
DECIMAL_INTEGER_LITERAL=(0|([1-9]({DIGIT_OR_UNDERSCORE})*))({UNSIGNED_SUFFIX}?{LONG_SUFFIX}?)?
HEX_INTEGER_LITERAL=0[Xx]({HEX_DIGIT_OR_UNDERSCORE})*({UNSIGNED_SUFFIX}?{LONG_SUFFIX}?)?
BIN_INTEGER_LITERAL=0[Bb]({DIGIT_OR_UNDERSCORE})*({UNSIGNED_SUFFIX}?{LONG_SUFFIX}?)?
DECIMAL_INTEGER_LITERAL=(0|([1-9]({DIGIT_OR_UNDERSCORE})*)){TYPED_INTEGER_SUFFIX}
HEX_INTEGER_LITERAL=0[Xx]({HEX_DIGIT_OR_UNDERSCORE})*{TYPED_INTEGER_SUFFIX}
BIN_INTEGER_LITERAL=0[Bb]({DIGIT_OR_UNDERSCORE})*{TYPED_INTEGER_SUFFIX}
LONG_SUFFIX=[Ll]
UNSIGNED_SUFFIX=[Uu]
TYPED_INTEGER_SUFFIX = {UNSIGNED_SUFFIX}?{LONG_SUFFIX}?
//FLOAT_LITERAL=(({FLOATING_POINT_LITERAL1})[Ff])|(({FLOATING_POINT_LITERAL2})[Ff])|(({FLOATING_POINT_LITERAL3})[Ff])|(({FLOATING_POINT_LITERAL4})[Ff])
//DOUBLE_LITERAL=(({FLOATING_POINT_LITERAL1})[Dd]?)|(({FLOATING_POINT_LITERAL2})[Dd]?)|(({FLOATING_POINT_LITERAL3})[Dd]?)|(({FLOATING_POINT_LITERAL4})[Dd])