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minor refactor for sanity

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russ 2017-10-31 22:10:46 -07:00
parent 6cff70f2a3
commit 6d151bc2b9
1 changed files with 11 additions and 12 deletions
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23
src/parser.rs
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@ -370,6 +370,7 @@ impl<'a> TokenIterator<'a> {
match c {
'0'...'9' => {
let mut result = Vec::new();
let mut radix_base: Option<u32> = None;
result.push(c);
while let Some(&nxt) = self.char_stream.peek() {
@ -403,10 +404,7 @@ impl<'a> TokenIterator<'a> {
_ => break,
}
}
let out: String = result.iter().cloned().skip(2).collect();
if let Ok(val) = i64::from_str_radix(&out, 16) {
return Some(Token::IntConst(val));
}
radix_base = Some(16);
}
'o' | 'O' => {
result.push(nxt);
@ -420,10 +418,7 @@ impl<'a> TokenIterator<'a> {
_ => break,
}
}
let out: String = result.iter().cloned().skip(2).collect();
if let Ok(val) = i64::from_str_radix(&out, 8) {
return Some(Token::IntConst(val));
}
radix_base = Some(8);
}
'b' | 'B' => {
result.push(nxt);
@ -437,15 +432,19 @@ impl<'a> TokenIterator<'a> {
_ => break,
}
}
let out: String = result.iter().cloned().skip(2).filter(|c| c != &'_').collect();
if let Ok(val) = i64::from_str_radix(&out, 2) {
return Some(Token::IntConst(val));
}
radix_base = Some(2);
}
_ => break,
}
}
if let Some(radix) = radix_base {
let out: String = result.iter().cloned().skip(2).filter(|c| c != &'_').collect();
if let Ok(val) = i64::from_str_radix(&out, radix) {
return Some(Token::IntConst(val));
}
}
let out: String = result.iter().cloned().collect();
if let Ok(val) = out.parse::<i64>() {