diff options
Diffstat (limited to 'helix-core')
| -rw-r--r-- | helix-core/src/increment/date_time.rs | 104 |
1 files changed, 52 insertions, 52 deletions
diff --git a/helix-core/src/increment/date_time.rs b/helix-core/src/increment/date_time.rs index 195bc14b..39646a17 100644 --- a/helix-core/src/increment/date_time.rs +++ b/helix-core/src/increment/date_time.rs @@ -67,27 +67,16 @@ impl DateTimeIncrementor { let has_date = format.fields.iter().any(|f| f.unit.is_date()); let has_time = format.fields.iter().any(|f| f.unit.is_time()); + let date_time = &text[date_time.start()..date_time.end()]; let date_time = match (has_date, has_time) { - (true, true) => NaiveDateTime::parse_from_str( - &text[date_time.start()..date_time.end()], - format.fmt, - ) - .ok()?, + (true, true) => NaiveDateTime::parse_from_str(date_time, format.fmt).ok()?, (true, false) => { - let date = NaiveDate::parse_from_str( - &text[date_time.start()..date_time.end()], - format.fmt, - ) - .ok()?; + let date = NaiveDate::parse_from_str(date_time, format.fmt).ok()?; date.and_hms(0, 0, 0) } (false, true) => { - let time = NaiveTime::parse_from_str( - &text[date_time.start()..date_time.end()], - format.fmt, - ) - .ok()?; + let time = NaiveTime::parse_from_str(date_time, format.fmt).ok()?; NaiveDate::from_ymd(0, 1, 1).and_time(time) } @@ -123,22 +112,22 @@ impl Increment for DateTimeIncrementor { static FORMATS: Lazy<Vec<Format>> = Lazy::new(|| { vec![ - Format::new("%Y-%m-%d %H:%M:%S"), // 2021-11-24 07:12:23 - Format::new("%Y/%m/%d %H:%M:%S"), // 2021/11/24 07:12:23 - Format::new("%Y-%m-%d %H:%M"), // 2021-11-24 07:12 - Format::new("%Y/%m/%d %H:%M"), // 2021/11/24 07:12 - Format::new("%Y-%m-%d"), // 2021-11-24 - Format::new("%Y/%m/%d"), // 2021/11/24 - Format::new("%a %b %d %Y"), // Wed Nov 24 2021 - Format::new("%d-%b-%Y"), // 24-Nov-2021 - Format::new("%Y %b %d"), // 2021 Nov 24 - Format::new("%b %d, %Y"), // Nov 24, 2021 - Format::new("%-I:%M:%S %P"), // 7:21:53 am - Format::new("%-I:%M %P"), // 7:21 am - Format::new("%-I:%M:%S %p"), // 7:21:53 AM - Format::new("%-I:%M %p"), // 7:21 AM - Format::new("%H:%M:%S"), // 23:24:23 - Format::new("%H:%M"), // 23:24 + Format::new("%Y-%m-%d %H:%M:%S").unwrap(), // 2021-11-24 07:12:23 + Format::new("%Y/%m/%d %H:%M:%S").unwrap(), // 2021/11/24 07:12:23 + Format::new("%Y-%m-%d %H:%M").unwrap(), // 2021-11-24 07:12 + Format::new("%Y/%m/%d %H:%M").unwrap(), // 2021/11/24 07:12 + Format::new("%Y-%m-%d").unwrap(), // 2021-11-24 + Format::new("%Y/%m/%d").unwrap(), // 2021/11/24 + Format::new("%a %b %d %Y").unwrap(), // Wed Nov 24 2021 + Format::new("%d-%b-%Y").unwrap(), // 24-Nov-2021 + Format::new("%Y %b %d").unwrap(), // 2021 Nov 24 + Format::new("%b %d, %Y").unwrap(), // Nov 24, 2021 + Format::new("%-I:%M:%S %P").unwrap(), // 7:21:53 am + Format::new("%-I:%M %P").unwrap(), // 7:21 am + Format::new("%-I:%M:%S %p").unwrap(), // 7:21:53 AM + Format::new("%-I:%M %p").unwrap(), // 7:21 AM + Format::new("%H:%M:%S").unwrap(), // 23:24:23 + Format::new("%H:%M").unwrap(), // 23:24 ] }); @@ -151,55 +140,65 @@ struct Format { } impl Format { - fn new(fmt: &'static str) -> Self { + fn new(fmt: &'static str) -> Result<Self, FormatError> { let mut remaining = fmt; let mut fields = Vec::new(); let mut regex = String::new(); let mut max_len = 0; while let Some(i) = remaining.find('%') { - let mut chars = remaining[i + 1..].chars(); - let spec_len = if let Some(c) = chars.next() { - if c == '-' { - if chars.next().is_some() { - 2 - } else { - 0 - } + let after = &remaining[i + 1..]; + let mut chars = after.chars(); + let c = chars + .next() + .ok_or(FormatError::UnexpectedEndOfFormatString)?; + + let spec_len = if c == '-' { + if let Some(c) = chars.next() { + 1 + c.len_utf8() } else { - 1 + return Err(FormatError::UnexpectedEndOfFormatString); } } else { - 0 + c.len_utf8() }; if i < remaining.len() - spec_len { - let specifier = &remaining[i + 1..i + 1 + spec_len]; + let specifier = &after[..spec_len]; if let Some(field) = DateField::from_specifier(specifier) { fields.push(field); max_len += field.max_len + remaining[..i].len(); regex += &remaining[..i]; regex += &format!("({})", field.regex); - remaining = &remaining[i + spec_len + 1..]; + remaining = &after[spec_len..]; } else { - regex += &remaining[..=i]; + return Err(FormatError::UnsupportedSpecifier( + &remaining[i..i + 1 + spec_len], + )); } } else { - regex += remaining; + return Err(FormatError::UnexpectedEndOfFormatString); } } - let regex = Regex::new(®ex).unwrap(); + let regex = Regex::new(®ex).map_err(FormatError::Regex)?; - Self { + Ok(Self { fmt, fields, regex, max_len, - } + }) } } +#[derive(Clone, Debug)] +enum FormatError { + UnexpectedEndOfFormatString, + UnsupportedSpecifier(&'static str), + Regex(regex::Error), +} + impl PartialEq for Format { fn eq(&self, other: &Self) -> bool { self.fmt == other.fmt && self.fields == other.fields && self.max_len == other.max_len @@ -348,10 +347,11 @@ fn add_months(date_time: NaiveDateTime, amount: i64) -> Option<NaiveDateTime> { // Normalize month let month = month % 12; let month = if month.is_negative() { - month + 13 + month + 12 } else { - month + 1 - } as u32; + month + } as u32 + + 1; let day = cmp::min(date_time.day(), ndays_in_month(year, month)); |