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Fix lexing of π with unit afterwards

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e.g `πm`
This commit is contained in:
Kasper 2021-07-06 19:59:20 +02:00
parent 10f79dc78f
commit c3f7166d28
1 changed files with 4 additions and 1 deletions
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5
src/lexer.rs
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@ -127,6 +127,7 @@ pub fn parse_token(c: &str, lexer: &mut Lexer) -> Result<(), String> {
// right_paren_count += 1;
tokens.push(Token::Operator(RightParen));
},
"π" => tokens.push(Token::Constant(Pi)),
"'" => tokens.push(Token::Unit(Foot)),
"\"" | "“" | "”" | "″" => tokens.push(Token::LexerKeyword(DoubleQuotes)),
"Ω" | "Ω" => tokens.push(Token::Unit(Ohm)),
@ -167,7 +168,7 @@ pub fn parse_word(word: &str, lexer: &mut Lexer) -> Result<(), String> {
"centillion" => Token::NamedNumber(Centillion),
"googol" => Token::NamedNumber(Googol),
"π" | "pi" => Token::Constant(Pi),
"pi" => Token::Constant(Pi),
"e" => Token::Constant(E),
"plus" => Token::Operator(Plus),
@ -961,5 +962,7 @@ mod tests {
run_lex("(2 + 3) * 4", vec![Token::Operator(LeftParen), numtok!(2), Token::Operator(Plus), numtok!(3), Token::Operator(RightParen), Token::Operator(Multiply), numtok!(4)]);
run_lex("52 weeks * (12 hrs + 12 hours)", vec![numtok!(52), Token::Unit(Week), Token::Operator(Multiply), Token::Operator(LeftParen), numtok!(12), Token::Unit(Hour), Token::Operator(Plus), numtok!(12), Token::Unit(Hour), Token::Operator(RightParen)]);
run_lex("12 pound+", vec![numtok!(12), Token::Unit(Pound), Token::Operator(Plus)]);
run_lex("5 π m", vec![numtok!(5), Token::Constant(Pi), Token::Unit(Meter)]);
}
}