sashakoshka
/
arf
Archived
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fixed lexing digraph tokens 

Lexer gave wrong token locations and would skip an extra rune when digraph was
not found.
This commit is contained in:
Sasha Koshka 2022-08-16 20:26:06 -04:00
parent 9e01eef45b
commit 3407aa7c59
1 changed files with 11 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
lexer/lexer.go
View File

@ -175,9 +175,9 @@ func (lexer *LexingOperation) tokenizeSymbolBeginning () (err error) {
lexer.addToken(token)
err = lexer.nextRune()
case '.':
token := lexer.newToken()
err = lexer.nextRune()
if err != nil { return }
token := lexer.newToken()
token.kind = TokenKindDot
if lexer.char == '.' {
token.kind = TokenKindElipsis
@ -210,15 +210,15 @@ func (lexer *LexingOperation) tokenizeSymbolBeginning () (err error) {
lexer.addToken(token)
err = lexer.nextRune()
case '+':
token := lexer.newToken()
err = lexer.nextRune()
if err != nil { return }
token := lexer.newToken()
token.kind = TokenKindPlus
if lexer.char == '+' {
token.kind = TokenKindIncrement
err = lexer.nextRune()
}
lexer.addToken(token)
err = lexer.nextRune()
case '-':
err = lexer.tokenizeDashBeginning()
case '*':
@ -252,45 +252,45 @@ func (lexer *LexingOperation) tokenizeSymbolBeginning () (err error) {
lexer.addToken(token)
err = lexer.nextRune()
case '<':
token := lexer.newToken()
err = lexer.nextRune()
if err != nil { return }
token := lexer.newToken()
token.kind = TokenKindLessThan
if lexer.char == '<' {
token.kind = TokenKindLShift
err = lexer.nextRune()
}
lexer.addToken(token)
err = lexer.nextRune()
case '>':
token := lexer.newToken()
err = lexer.nextRune()
if err != nil { return }
token := lexer.newToken()
token.kind = TokenKindGreaterThan
if lexer.char == '>' {
token.kind = TokenKindRShift
err = lexer.nextRune()
}
lexer.addToken(token)
err = lexer.nextRune()
case '|':
token := lexer.newToken()
err = lexer.nextRune()
if err != nil { return }
token := lexer.newToken()
token.kind = TokenKindBinaryOr
if lexer.char == '|' {
token.kind = TokenKindLogicalOr
err = lexer.nextRune()
}
lexer.addToken(token)
err = lexer.nextRune()
case '&':
token := lexer.newToken()
err = lexer.nextRune()
if err != nil { return }
token := lexer.newToken()
token.kind = TokenKindBinaryAnd
if lexer.char == '&' {
token.kind = TokenKindLogicalAnd
err = lexer.nextRune()
}
lexer.addToken(token)
err = lexer.nextRune()
default:
err = file.NewError (
lexer.file.Location(1),