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Merge pull request #3 from markcol/match

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Convert if/else block in resolve_ymd to use match()
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bspeice 2018-06-25 21:34:55 -04:00 committed by GitHub
commit c6f753261d
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1 changed files with 45 additions and 81 deletions
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126
src/lib.rs
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@ -642,10 +642,6 @@ impl YMD {
dayfirst: bool, dayfirst: bool,
) -> ParseIResult<(Option<i32>, Option<i32>, Option<i32>)> { ) -> ParseIResult<(Option<i32>, Option<i32>, Option<i32>)> {
let len_ymd = self._ymd.len(); let len_ymd = self._ymd.len();
let mut year: Option<i32> = None;
let mut month: Option<i32> = None;
let mut day: Option<i32> = None;
let mut other: Option<i32> = None;
let mut strids: HashMap<YMDLabel, usize> = HashMap::new(); let mut strids: HashMap<YMDLabel, usize> = HashMap::new();
self.ystridx self.ystridx
@ -656,109 +652,77 @@ impl YMD {
.map(|u| strids.insert(YMDLabel::Day, u.clone())); .map(|u| strids.insert(YMDLabel::Day, u.clone()));
// TODO: More Rustiomatic way of doing this? // TODO: More Rustiomatic way of doing this?
if self._ymd.len() == strids.len() && strids.len() > 0 if len_ymd == strids.len() && strids.len() > 0
|| (self._ymd.len() == 3 && strids.len() == 2) || (len_ymd == 3 && strids.len() == 2)
{ {
return self.resolve_from_stridxs(&mut strids); return self.resolve_from_stridxs(&mut strids);
}; };
// TODO: More Rustiomatic? Too many blocks for my liking
// Also having the array unpacking syntax is nice
if len_ymd > 3 { if len_ymd > 3 {
return Err(ParseInternalError::ValueError( return Err(ParseInternalError::ValueError(
"More than three YMD values".to_owned(), "More than three YMD values".to_owned(),
)); ));
} else if len_ymd == 1 || (self.mstridx.is_some() && len_ymd == 2) { }
if self.mstridx.is_some() {
month = Some(self._ymd[self.mstridx.unwrap()]);
other = if len_ymd == 1 {
Some(self._ymd[0])
} else {
Some(self._ymd[1 - self.mstridx.unwrap()])
};
} else {
other = Some(self._ymd[0]);
}
if len_ymd > 1 || self.mstridx.is_some() { match (len_ymd, self.mstridx) {
if other.unwrap_or(0) > 31 { (1, Some(val)) |
year = other; (2, Some(val)) => {
let other = if len_ymd == 1 {
self._ymd[0]
} else { } else {
day = other; self._ymd[1 - val]
};
if other > 31 {
return Ok((Some(other), Some(self._ymd[val]), None));
}
return Ok((None, Some(self._ymd[val]), Some(other)));
},
(2, None) => {
if self._ymd[0] > 31 {
return Ok((Some(self._ymd[0]), Some(self._ymd[1]), None));
} }
}
} else if len_ymd == 2 {
if self._ymd[0] > 31 {
year = Some(self._ymd[0]);
month = Some(self._ymd[1]);
} else if self._ymd[1] > 31 {
month = Some(self._ymd[0]);
year = Some(self._ymd[1]);
} else if dayfirst && self._ymd[1] <= 12 {
day = Some(self._ymd[0]);
month = Some(self._ymd[1]);
} else {
month = Some(self._ymd[0]);
day = Some(self._ymd[1]);
}
} else if len_ymd == 3 {
if self.mstridx == Some(0) {
if self._ymd[1] > 31 { if self._ymd[1] > 31 {
month = Some(self._ymd[0]); return Ok((Some(self._ymd[1]), Some(self._ymd[0]), None));
year = Some(self._ymd[1]);
day = Some(self._ymd[2]);
} else {
month = Some(self._ymd[0]);
day = Some(self._ymd[1]);
year = Some(self._ymd[2]);
} }
} else if self.mstridx == Some(1) { if dayfirst && self._ymd[1] <= 12 {
return Ok((None, Some(self._ymd[1]), Some(self._ymd[0])));
}
return Ok((None, Some(self._ymd[0]), Some(self._ymd[1])));
},
(3, Some(0)) => {
if self._ymd[1] > 31 {
return Ok((Some(self._ymd[1]), Some(self._ymd[0]), Some(self._ymd[2])));
}
return Ok((Some(self._ymd[2]), Some(self._ymd[0]), Some(self._ymd[1])));
},
(3, Some(1)) => {
if self._ymd[0] > 31 || (yearfirst && self._ymd[2] <= 31) { if self._ymd[0] > 31 || (yearfirst && self._ymd[2] <= 31) {
year = Some(self._ymd[0]); return Ok((Some(self._ymd[0]), Some(self._ymd[1]), Some(self._ymd[2])));
month = Some(self._ymd[1]);
day = Some(self._ymd[2]);
} else {
day = Some(self._ymd[0]);
month = Some(self._ymd[1]);
year = Some(self._ymd[2]);
} }
} else if self.mstridx == Some(2) { return Ok((Some(self._ymd[2]), Some(self._ymd[1]), Some(self._ymd[0])));
},
(3, Some(2)) => {
// It was in the original docs, so: WTF!? // It was in the original docs, so: WTF!?
if self._ymd[1] > 31 { if self._ymd[1] > 31 {
day = Some(self._ymd[0]); return Ok((Some(self._ymd[2]), Some(self._ymd[1]), Some(self._ymd[0])));
year = Some(self._ymd[1]);
month = Some(self._ymd[2]);
} else {
year = Some(self._ymd[0]);
day = Some(self._ymd[1]);
month = Some(self._ymd[2]);
} }
} else { return Ok((Some(self._ymd[0]), Some(self._ymd[2]), Some(self._ymd[1])));
},
(3, None) => {
if self._ymd[0] > 31 || self.ystridx == Some(0) if self._ymd[0] > 31 || self.ystridx == Some(0)
|| (yearfirst && self._ymd[1] <= 12 && self._ymd[2] <= 31) || (yearfirst && self._ymd[1] <= 12 && self._ymd[2] <= 31)
{ {
if dayfirst && self._ymd[2] <= 12 { if dayfirst && self._ymd[2] <= 12 {
year = Some(self._ymd[0]); return Ok((Some(self._ymd[0]), Some(self._ymd[2]), Some(self._ymd[1])));
day = Some(self._ymd[1]);
month = Some(self._ymd[2]);
} else {
year = Some(self._ymd[0]);
month = Some(self._ymd[1]);
day = Some(self._ymd[2]);
} }
return Ok((Some(self._ymd[0]), Some(self._ymd[1]), Some(self._ymd[2])));
} else if self._ymd[0] > 12 || (dayfirst && self._ymd[1] <= 12) { } else if self._ymd[0] > 12 || (dayfirst && self._ymd[1] <= 12) {
day = Some(self._ymd[0]); return Ok((Some(self._ymd[2]), Some(self._ymd[1]), Some(self._ymd[0])));
month = Some(self._ymd[1]);
year = Some(self._ymd[2]);
} else {
month = Some(self._ymd[0]);
day = Some(self._ymd[1]);
year = Some(self._ymd[2]);
} }
} return Ok((Some(self._ymd[2]), Some(self._ymd[0]), Some(self._ymd[1])));
},
(_, _) => { return Ok((None, None, None)); },
} }
Ok((year, month, day))
} }
} }