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cooler kid syntax

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rhpidfyre
2025-04-12 19:14:29 -04:00
parent 43457aae9f
commit c338f55094
1 changed files with 6 additions and 7 deletions
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13
src/shunting_yard.rs
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@ -14,22 +14,21 @@ impl ShuntingYard {
}
}
fn is_operator(&mut self, value: char) -> bool {
fn is_shift_operator(&mut self, value: char) -> bool {
match value {
'&' | '^' | '|' => {
self.stack.push(value.to_string());
true
},
'>' | '<' => {
if let Some(last) = self.stack.last_mut() {
match last.as_str() {
match self.stack.last_mut() {
None => self.stack.push(value.to_string()),
Some(last) => match last.as_str() {
">" => *last = ">>".to_owned(),
"<" => *last = "<<".to_owned(),
_ => self.stack.push(value.to_string())
}
} else {
self.stack.push(value.to_string())
};
}
true
}
_ => false
@ -40,7 +39,7 @@ impl ShuntingYard {
self.output = self.input.chars()
.collect::<Vec<char>>()
.into_iter()
.filter(|char| self.is_operator(*char))
.filter(|char| self.is_shift_operator(*char))
.map(|char_num| char_num.to_string())
.collect::<Vec<String>>();