Added support for binary literals
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77f3c590c6
commit
8f38203684
@ -58,6 +58,7 @@ func (lexer *LexingOperation) tokenize () (err error) {
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return
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return
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}
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}
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// tokenizeSymbolBeginning lexes a token that starts with a number.
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func (lexer *LexingOperation) tokenizeNumberBeginning (negative bool) (err error) {
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func (lexer *LexingOperation) tokenizeNumberBeginning (negative bool) (err error) {
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if lexer.char == '0' {
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if lexer.char == '0' {
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lexer.nextRune()
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lexer.nextRune()
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@ -88,7 +89,7 @@ func (lexer *LexingOperation) tokenizeNumberBeginning (negative bool) (err error
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return
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return
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}
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}
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// tokenizeDecimalNumber Reads and tokenizes a hexidecimal number.
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// tokenizeHexidecimalNumber Reads and tokenizes a hexidecimal number.
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func (lexer *LexingOperation) tokenizeHexidecimalNumber (negative bool) (err error) {
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func (lexer *LexingOperation) tokenizeHexidecimalNumber (negative bool) (err error) {
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var number uint64
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var number uint64
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@ -124,6 +125,38 @@ func (lexer *LexingOperation) tokenizeHexidecimalNumber (negative bool) (err err
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return
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return
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}
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}
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// tokenizeBinaryNumber Reads and tokenizes a binary number.
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func (lexer *LexingOperation) tokenizeBinaryNumber (negative bool) (err error) {
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var number uint64
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for {
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if lexer.char == '0' {
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number *= 2
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} else if lexer.char == '1' {
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number *= 2
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number += 1
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} else {
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break
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}
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err = lexer.nextRune()
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if err != nil { return }
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}
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token := Token { }
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if negative {
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token.kind = TokenKindInt
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token.value = int64(number) * -1
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} else {
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token.kind = TokenKindUInt
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token.value = uint64(number)
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}
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lexer.addToken(token)
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return
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}
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func (lexer *LexingOperation) tokenizeAlphaBeginning () (err error) {
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func (lexer *LexingOperation) tokenizeAlphaBeginning () (err error) {
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got := ""
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got := ""
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