reworked new `format` APIs to return a proper Result and error code.
This commit is contained in:
Kang Seonghoon
parent
aebcedf37b
commit
9768b57494
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@ -9,6 +9,7 @@
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use std::fmt;
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use std::iter;
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use std::usize;
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use std::error::Error;
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use {Datelike, Timelike};
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use Weekday;
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@ -276,8 +277,75 @@ pub fn format<'a, I>(w: &mut fmt::Formatter, date: Option<&NaiveDate>, time: Opt
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Ok(())
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}
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/// An error from the `parse` function.
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#[derive(Debug, Clone, PartialEq, Copy)]
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pub struct ParseError(ParseErrorKind);
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#[derive(Debug, Clone, PartialEq, Copy)]
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enum ParseErrorKind {
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/// Given field is out of permitted range.
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OutOfRange,
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/// There is no possible date and time value with given set of fields.
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///
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/// This does not include the out-of-range conditions, which are trivially invalid.
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/// It includes the case that there are one or more fields that are inconsistent to each other.
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Impossible,
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/// Given set of fields is not enough to make a requested date and time value.
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///
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/// Note that there *may* be a case that given fields constrain the possible values so much
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/// that there is a unique possible value. Chrono only tries to be correct for
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/// most useful sets of fields however, as such constraint solving can be expensive.
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NotEnough,
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/// The input string has some invalid character sequence for given formatting items.
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Invalid,
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/// The input string has been prematurely ended.
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TooShort,
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/// All formatting items have been read but there is a remaining input.
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TooLong,
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/// There was an error on the formatting string, or there were non-supported formating items.
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BadFormat,
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}
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/// Same to `Result<T, ParseError>`.
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pub type ParseResult<T> = Result<T, ParseError>;
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impl fmt::Display for ParseError {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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self.description().fmt(f)
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}
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}
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impl Error for ParseError {
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fn description(&self) -> &str {
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match self.0 {
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ParseErrorKind::OutOfRange => "input is out of range",
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ParseErrorKind::Impossible => "no possible date and time matching input",
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ParseErrorKind::NotEnough => "input is not enough for unique date and time",
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ParseErrorKind::Invalid => "input contains invalid characters",
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ParseErrorKind::TooShort => "premature end of input",
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ParseErrorKind::TooLong => "trailing input",
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ParseErrorKind::BadFormat => "bad or unsupported format string",
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}
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}
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}
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// to be used in this module and submodules
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const OUT_OF_RANGE: ParseError = ParseError(ParseErrorKind::OutOfRange);
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const IMPOSSIBLE: ParseError = ParseError(ParseErrorKind::Impossible);
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const NOT_ENOUGH: ParseError = ParseError(ParseErrorKind::NotEnough);
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const INVALID: ParseError = ParseError(ParseErrorKind::Invalid);
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const TOO_SHORT: ParseError = ParseError(ParseErrorKind::TooShort);
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const TOO_LONG: ParseError = ParseError(ParseErrorKind::TooLong);
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const BAD_FORMAT: ParseError = ParseError(ParseErrorKind::BadFormat);
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/// Tries to parse given string into `parsed` with given formatting items.
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/// Returns true when the entire string has been parsed (otherwise `parsed` should not be used).
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/// Returns `Ok` when the entire string has been parsed (otherwise `parsed` should not be used).
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/// There should be no trailing string after parsing; use a stray `Item::Space` to trim whitespaces.
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///
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/// This particular date and time parser is:
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@ -288,7 +356,7 @@ pub fn format<'a, I>(w: &mut fmt::Formatter, date: Option<&NaiveDate>, time: Opt
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/// - Padding-agnostic (for numeric items). The `Pad` field is completely ignored,
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/// so one can prepend any number of whitespace then any number of zeroes before numbers.
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/// - (Still) obeying the intrinsic parsing width. This allows, for example, parsing `HHMMSS`.
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pub fn parse<'a, I>(parsed: &mut Parsed, mut s: &str, items: I) -> bool
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pub fn parse<'a, I>(parsed: &mut Parsed, mut s: &str, items: I) -> ParseResult<()>
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where I: Iterator<Item=Item<'a>> {
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// lowercased month and weekday names
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static LONG_MONTHS: [&'static str; 12] =
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@ -298,64 +366,63 @@ pub fn parse<'a, I>(parsed: &mut Parsed, mut s: &str, items: I) -> bool
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["monday", "tuesday", "wednesday", "thursday", "friday", "saturday", "sunday"];
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// tries to parse the month index (0 through 11) with the first three ASCII letters.
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fn parse_short_month(s: &str) -> Option<u8> {
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if s.len() < 3 { return None; }
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fn parse_short_month(s: &str) -> ParseResult<u8> {
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if s.len() < 3 { return Err(TOO_SHORT); }
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let s = s.as_bytes();
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match [s[0] | 32, s[1] | 32, s[2] | 32] {
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[b'j',b'a',b'n'] => Some(0),
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[b'f',b'e',b'b'] => Some(1),
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[b'm',b'a',b'r'] => Some(2),
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[b'a',b'p',b'r'] => Some(3),
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[b'm',b'a',b'y'] => Some(4),
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[b'j',b'u',b'n'] => Some(5),
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[b'j',b'u',b'l'] => Some(6),
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[b'a',b'u',b'g'] => Some(7),
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[b's',b'e',b'p'] => Some(8),
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[b'o',b'c',b't'] => Some(9),
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[b'n',b'o',b'v'] => Some(10),
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[b'd',b'e',b'c'] => Some(11),
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_ => None
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[b'j',b'a',b'n'] => Ok(0),
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[b'f',b'e',b'b'] => Ok(1),
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[b'm',b'a',b'r'] => Ok(2),
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[b'a',b'p',b'r'] => Ok(3),
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[b'm',b'a',b'y'] => Ok(4),
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[b'j',b'u',b'n'] => Ok(5),
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[b'j',b'u',b'l'] => Ok(6),
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[b'a',b'u',b'g'] => Ok(7),
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[b's',b'e',b'p'] => Ok(8),
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[b'o',b'c',b't'] => Ok(9),
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[b'n',b'o',b'v'] => Ok(10),
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[b'd',b'e',b'c'] => Ok(11),
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_ => Err(INVALID)
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}
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}
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// tries to parse the weekday with the first three ASCII letters.
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fn parse_short_weekday(s: &str) -> Option<Weekday> {
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if s.len() < 3 { return None; }
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fn parse_short_weekday(s: &str) -> ParseResult<Weekday> {
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if s.len() < 3 { return Err(TOO_SHORT); }
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let s = s.as_bytes();
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match [s[0] | 32, s[1] | 32, s[2] | 32] {
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[b'm',b'o',b'n'] => Some(Weekday::Mon),
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[b't',b'u',b'e'] => Some(Weekday::Tue),
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[b'w',b'e',b'd'] => Some(Weekday::Wed),
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[b't',b'h',b'u'] => Some(Weekday::Thu),
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[b'f',b'r',b'i'] => Some(Weekday::Fri),
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[b's',b'a',b't'] => Some(Weekday::Sat),
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[b's',b'u',b'n'] => Some(Weekday::Sun),
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_ => None
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[b'm',b'o',b'n'] => Ok(Weekday::Mon),
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[b't',b'u',b'e'] => Ok(Weekday::Tue),
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[b'w',b'e',b'd'] => Ok(Weekday::Wed),
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[b't',b'h',b'u'] => Ok(Weekday::Thu),
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[b'f',b'r',b'i'] => Ok(Weekday::Fri),
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[b's',b'a',b't'] => Ok(Weekday::Sat),
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[b's',b'u',b'n'] => Ok(Weekday::Sun),
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_ => Err(INVALID)
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}
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}
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// tries to consume `\s*[-+]\d\d[\s:]*\d\d` and return an offset in seconds
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fn parse_timezone_offset(mut s: &str, allow_zulu: bool) -> Option<(&str, i32)> {
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fn parse_timezone_offset(mut s: &str, allow_zulu: bool) -> ParseResult<(&str, i32)> {
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s = s.trim_left();
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// + or -, or Z/z if `allow_zulu` is true
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let negative = if s.starts_with("+") {
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false
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} else if s.starts_with("-") {
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true
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} else if allow_zulu && (s.starts_with("z") || s.starts_with("Z")) {
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return Some((&s[1..], 0));
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} else {
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return None;
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let negative = match s.as_bytes().first() {
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Some(&b'+') => false,
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Some(&b'-') => true,
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Some(&b'z') | Some(&b'Z') if allow_zulu => return Ok((&s[1..], 0)),
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Some(_) => return Err(INVALID),
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None => return Err(TOO_SHORT),
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};
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s = &s[1..];
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// hours (00--24, where 24 is allowed only with 24:00)
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// the range check happens later for this reason.
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let hours = match s.as_bytes() {
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[h1 @ b'0'...b'2', h2 @ b'0'...b'9', ..] =>
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(h1 - b'0') as i32 * 10 + (h2 - b'0') as i32,
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_ => return None
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[h1 @ b'0'...b'2', h2 @ b'0'...b'9', ..] => ((h1 - b'0') * 10 + (h2 - b'0')) as i32,
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[b'3'...b'9', b'0'...b'9', ..] => return Err(OUT_OF_RANGE),
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[] | [_] => return Err(TOO_SHORT),
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_ => return Err(INVALID),
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};
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s = &s[2..];
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@ -364,15 +431,16 @@ pub fn parse<'a, I>(parsed: &mut Parsed, mut s: &str, items: I) -> bool
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// minutes (00--59)
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let minutes = match s.as_bytes() {
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[m1 @ b'0'...b'5', m2 @ b'0'...b'9', ..] =>
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(m1 - b'0') as i32 * 10 + (m2 - b'0') as i32,
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_ => return None
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[m1 @ b'0'...b'5', m2 @ b'0'...b'9', ..] => ((m1 - b'0') * 10 + (m2 - b'0')) as i32,
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[b'6'...b'9', b'0'...b'9', ..] => return Err(OUT_OF_RANGE),
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[] | [_] => return Err(TOO_SHORT),
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_ => return Err(INVALID),
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};
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s = &s[2..];
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let seconds = hours * 3600 + minutes * 60;
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if seconds > 86400 { return None; } // range check for hours
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Some((s, if negative {-seconds} else {seconds}))
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if seconds > 86400 { return Err(OUT_OF_RANGE); } // range check for hours
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Ok((s, if negative {-seconds} else {seconds}))
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}
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// compares two slice case-insensitively (in ASCII).
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@ -386,7 +454,8 @@ pub fn parse<'a, I>(parsed: &mut Parsed, mut s: &str, items: I) -> bool
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for item in items {
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match item {
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Item::Literal(prefix) => {
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if !s.starts_with(prefix) { return false; }
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if s.len() < prefix.len() { return Err(TOO_SHORT); }
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if !s.starts_with(prefix) { return Err(INVALID); }
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s = &s[prefix.len()..];
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}
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@ -397,23 +466,24 @@ pub fn parse<'a, I>(parsed: &mut Parsed, mut s: &str, items: I) -> bool
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Item::Numeric(spec, _pad) => {
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use self::Numeric::*;
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fn set_weekday_with_num_days_from_sunday(p: &mut Parsed, v: i64) -> bool {
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fn set_weekday_with_num_days_from_sunday(p: &mut Parsed,
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v: i64) -> ParseResult<()> {
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p.set_weekday(match v {
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0 => Weekday::Sun, 1 => Weekday::Mon, 2 => Weekday::Tue,
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3 => Weekday::Wed, 4 => Weekday::Thu, 5 => Weekday::Fri,
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6 => Weekday::Sat, _ => return false
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6 => Weekday::Sat, _ => return Err(OUT_OF_RANGE)
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})
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}
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fn set_weekday_with_number_from_monday(p: &mut Parsed, v: i64) -> bool {
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fn set_weekday_with_number_from_monday(p: &mut Parsed, v: i64) -> ParseResult<()> {
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p.set_weekday(match v {
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1 => Weekday::Mon, 2 => Weekday::Tue, 3 => Weekday::Wed,
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4 => Weekday::Thu, 5 => Weekday::Fri, 6 => Weekday::Sat,
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7 => Weekday::Sun, _ => return false
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7 => Weekday::Sun, _ => return Err(OUT_OF_RANGE)
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})
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}
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let (width, set): (usize, fn(&mut Parsed, i64) -> bool) = match spec {
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let (width, set): (usize, fn(&mut Parsed, i64) -> ParseResult<()>) = match spec {
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Year => (4, Parsed::set_year),
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YearDiv100 => (2, Parsed::set_year_div_100),
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YearMod100 => (2, Parsed::set_year_mod_100),
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@ -443,15 +513,15 @@ pub fn parse<'a, I>(parsed: &mut Parsed, mut s: &str, items: I) -> bool
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let mut win = s.as_bytes();
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if win.len() > width { win = &win[..width]; }
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let upto = win.iter().position(|&c| c < b'0' || b'9' < c).unwrap_or(win.len());
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if upto == 0 { return false; } // no digits detected
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if let Ok(v) = s[..upto].parse() {
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if !set(parsed, v) { return false; }
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s = &s[upto..];
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} else {
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// overflow. this is possible with `Timestamp` for example
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return false;
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if upto == 0 { // no digits detected
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return Err(if win.is_empty() {TOO_SHORT} else {INVALID});
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}
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// overflow is possible with `Timestamp` for example
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// we have no other error cause, and can safely replace the error to our version
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let v = try!(s[..upto].parse().map_err(|_| OUT_OF_RANGE));
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try!(set(parsed, v));
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s = &s[upto..];
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}
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Item::Fixed(spec) => {
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@ -459,91 +529,79 @@ pub fn parse<'a, I>(parsed: &mut Parsed, mut s: &str, items: I) -> bool
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match spec {
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ShortMonthName => {
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if let Some(month0) = parse_short_month(s) {
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if !parsed.set_month(month0 as i64 + 1) { return false; }
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s = &s[3..];
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} else {
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return false;
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}
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let month0 = try!(parse_short_month(s));
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try!(parsed.set_month(month0 as i64 + 1));
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s = &s[3..];
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}
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LongMonthName => {
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if let Some(month0) = parse_short_month(s) {
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// three-letter abbreviation is a prefix of the corresponding long name
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let long = LONG_MONTHS[month0 as usize];
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if s.len() >= long.len() && equals_ascii_nocase(&s[3..long.len()],
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&long[3..]) {
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// *optionally* consume the long form if possible
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s = &s[long.len()..];
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} else {
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s = &s[3..];
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}
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if !parsed.set_month(month0 as i64 + 1) { return false; }
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let month0 = try!(parse_short_month(s));
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let long = LONG_MONTHS[month0 as usize];
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// three-letter abbreviation is a prefix of the corresponding long name
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if s.len() >= long.len() && equals_ascii_nocase(&s[3..long.len()],
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&long[3..]) {
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// *optionally* consume the long form if possible
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s = &s[long.len()..];
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} else {
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return false;
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s = &s[3..];
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}
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try!(parsed.set_month(month0 as i64 + 1));
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}
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ShortWeekdayName => {
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if let Some(weekday) = parse_short_weekday(s) {
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if !parsed.set_weekday(weekday) { return false; }
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s = &s[3..];
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} else {
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return false;
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}
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let weekday = try!(parse_short_weekday(s));
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try!(parsed.set_weekday(weekday));
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s = &s[3..];
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}
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LongWeekdayName => {
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if let Some(weekday) = parse_short_weekday(s) {
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// three-letter abbreviation is a prefix of the corresponding long name
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let long = LONG_WEEKDAYS[weekday.num_days_from_monday() as usize];
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if s.len() >= long.len() && equals_ascii_nocase(&s[3..long.len()],
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&long[3..]) {
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// *optionally* consume the long form if possible
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s = &s[long.len()..];
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} else {
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s = &s[3..];
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}
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if !parsed.set_weekday(weekday) { return false; }
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let weekday = try!(parse_short_weekday(s));
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let long = LONG_WEEKDAYS[weekday.num_days_from_monday() as usize];
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// three-letter abbreviation is a prefix of the corresponding long name
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if s.len() >= long.len() && equals_ascii_nocase(&s[3..long.len()],
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&long[3..]) {
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// *optionally* consume the long form if possible
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s = &s[long.len()..];
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} else {
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return false;
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s = &s[3..];
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}
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try!(parsed.set_weekday(weekday));
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}
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LowerAmPm | UpperAmPm => {
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if s.len() < 2 { return false; }
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if s.len() < 2 { return Err(TOO_SHORT); }
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let ampm = match [s.as_bytes()[0] | 32, s.as_bytes()[1] | 32] {
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[b'a',b'm'] => false,
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[b'p',b'm'] => true,
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_ => return false
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_ => return Err(INVALID)
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};
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if !parsed.set_ampm(ampm) { return false; }
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try!(parsed.set_ampm(ampm));
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s = &s[2..];
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}
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// not supported in the parser
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TimezoneName => return false,
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TimezoneName => return Err(BAD_FORMAT),
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TimezoneOffset | TimezoneOffsetZ => {
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let allow_zulu = spec == TimezoneOffsetZ;
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if let Some((s_, offset)) = parse_timezone_offset(s, allow_zulu) {
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s = s_;
|
||||
if !parsed.set_offset(offset as i64) { return false; }
|
||||
} else {
|
||||
return false;
|
||||
}
|
||||
let (s_, offset) = try!(parse_timezone_offset(s, allow_zulu));
|
||||
s = s_;
|
||||
try!(parsed.set_offset(offset as i64));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Item::Error => {
|
||||
return false;
|
||||
return Err(BAD_FORMAT);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// if there are trailling chars, it is an error
|
||||
s.is_empty()
|
||||
if !s.is_empty() {
|
||||
Err(TOO_LONG)
|
||||
} else {
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
/// A *temporary* object which can be used as an argument to `format!` or others.
|
||||
|
|
@ -589,66 +647,66 @@ pub mod strftime;
|
|||
#[test]
|
||||
fn test_parse() {
|
||||
macro_rules! check {
|
||||
($fmt:expr, $items:expr; _) => ({
|
||||
assert!(!parse(&mut Parsed::new(), $fmt, $items.iter().cloned()));
|
||||
($fmt:expr, $items:expr; $err:expr) => ({
|
||||
assert_eq!(parse(&mut Parsed::new(), $fmt, $items.iter().cloned()), Err($err));
|
||||
});
|
||||
|
||||
($fmt:expr, $items:expr; $($k:ident: $v:expr),*) => ({
|
||||
let mut parsed = Parsed::new();
|
||||
assert!(parse(&mut parsed, $fmt, $items.iter().cloned()));
|
||||
assert_eq!(parse(&mut parsed, $fmt, $items.iter().cloned()), Ok(()));
|
||||
assert_eq!(parsed, Parsed { $($k: Some($v),)* ..Parsed::new() });
|
||||
});
|
||||
}
|
||||
|
||||
// empty string
|
||||
check!("", []; );
|
||||
check!(" ", []; _);
|
||||
check!("a", []; _);
|
||||
check!(" ", []; TOO_LONG);
|
||||
check!("a", []; TOO_LONG);
|
||||
|
||||
// whitespaces
|
||||
check!("", [sp!("")]; );
|
||||
check!(" ", [sp!("")]; );
|
||||
check!("\t", [sp!("")]; );
|
||||
check!(" \n\r \n", [sp!("")]; );
|
||||
check!("a", [sp!("")]; _);
|
||||
check!("a", [sp!("")]; TOO_LONG);
|
||||
|
||||
// literal
|
||||
check!("", [lit!("a")]; _);
|
||||
check!(" ", [lit!("a")]; _);
|
||||
check!("", [lit!("a")]; TOO_SHORT);
|
||||
check!(" ", [lit!("a")]; INVALID);
|
||||
check!("a", [lit!("a")]; );
|
||||
check!("aa", [lit!("a")]; _);
|
||||
check!("A", [lit!("a")]; _);
|
||||
check!("aa", [lit!("a")]; TOO_LONG);
|
||||
check!("A", [lit!("a")]; INVALID);
|
||||
check!("xy", [lit!("xy")]; );
|
||||
check!("xy", [lit!("x"), lit!("y")]; );
|
||||
check!("x y", [lit!("x"), lit!("y")]; _);
|
||||
check!("x y", [lit!("x"), lit!("y")]; INVALID);
|
||||
check!("xy", [lit!("x"), sp!(""), lit!("y")]; );
|
||||
check!("x y", [lit!("x"), sp!(""), lit!("y")]; );
|
||||
|
||||
// numeric
|
||||
check!("1987", [num!(Year)]; year_div_100: 19, year_mod_100: 87);
|
||||
check!("1987 ", [num!(Year)]; _);
|
||||
check!("0x12", [num!(Year)]; _);
|
||||
check!("2015", [num!(Year)]; year_div_100: 20, year_mod_100: 15);
|
||||
check!("0000", [num!(Year)]; year_div_100: 0, year_mod_100: 0);
|
||||
check!("9999", [num!(Year)]; year_div_100: 99, year_mod_100: 99);
|
||||
check!(" \t987", [num!(Year)]; year_div_100: 9, year_mod_100: 87);
|
||||
check!("5", [num!(Year)]; year_div_100: 0, year_mod_100: 5);
|
||||
check!("-42", [num!(Year)]; _);
|
||||
check!("+42", [num!(Year)]; _);
|
||||
check!("5\0", [num!(Year)]; _);
|
||||
check!("\05", [num!(Year)]; _);
|
||||
check!("", [num!(Year)]; _);
|
||||
check!("12345", [num!(Year), lit!("5")]; year_div_100: 12, year_mod_100: 34);
|
||||
check!("12345", [nums!(Year), lit!("5")]; year_div_100: 12, year_mod_100: 34);
|
||||
check!("12345", [num0!(Year), lit!("5")]; year_div_100: 12, year_mod_100: 34);
|
||||
check!("12341234", [num!(Year), num!(Year)]; year_div_100: 12, year_mod_100: 34);
|
||||
check!("1234 1234", [num!(Year), num!(Year)]; year_div_100: 12, year_mod_100: 34);
|
||||
check!("1234 1235", [num!(Year), num!(Year)]; _);
|
||||
check!("1234 1234", [num!(Year), lit!("x"), num!(Year)]; _);
|
||||
check!("1234x1234", [num!(Year), lit!("x"), num!(Year)];
|
||||
year_div_100: 12, year_mod_100: 34);
|
||||
check!("1234xx1234", [num!(Year), lit!("x"), num!(Year)]; _);
|
||||
check!("1234 x 1234", [num!(Year), lit!("x"), num!(Year)]; _);
|
||||
check!("1987", [num!(Year)]; year_div_100: 19, year_mod_100: 87);
|
||||
check!("1987 ", [num!(Year)]; TOO_LONG);
|
||||
check!("0x12", [num!(Year)]; TOO_LONG); // `0` is parsed
|
||||
check!("x123", [num!(Year)]; INVALID);
|
||||
check!("2015", [num!(Year)]; year_div_100: 20, year_mod_100: 15);
|
||||
check!("0000", [num!(Year)]; year_div_100: 0, year_mod_100: 0);
|
||||
check!("9999", [num!(Year)]; year_div_100: 99, year_mod_100: 99);
|
||||
check!(" \t987", [num!(Year)]; year_div_100: 9, year_mod_100: 87);
|
||||
check!("5", [num!(Year)]; year_div_100: 0, year_mod_100: 5);
|
||||
check!("-42", [num!(Year)]; INVALID);
|
||||
check!("+42", [num!(Year)]; INVALID);
|
||||
check!("5\0", [num!(Year)]; TOO_LONG);
|
||||
check!("\05", [num!(Year)]; INVALID);
|
||||
check!("", [num!(Year)]; TOO_SHORT);
|
||||
check!("12345", [num!(Year), lit!("5")]; year_div_100: 12, year_mod_100: 34);
|
||||
check!("12345", [nums!(Year), lit!("5")]; year_div_100: 12, year_mod_100: 34);
|
||||
check!("12345", [num0!(Year), lit!("5")]; year_div_100: 12, year_mod_100: 34);
|
||||
check!("12341234", [num!(Year), num!(Year)]; year_div_100: 12, year_mod_100: 34);
|
||||
check!("1234 1234", [num!(Year), num!(Year)]; year_div_100: 12, year_mod_100: 34);
|
||||
check!("1234 1235", [num!(Year), num!(Year)]; IMPOSSIBLE);
|
||||
check!("1234 1234", [num!(Year), lit!("x"), num!(Year)]; INVALID);
|
||||
check!("1234x1234", [num!(Year), lit!("x"), num!(Year)]; year_div_100: 12, year_mod_100: 34);
|
||||
check!("1234xx1234", [num!(Year), lit!("x"), num!(Year)]; INVALID);
|
||||
check!("1234 x 1234", [num!(Year), lit!("x"), num!(Year)]; INVALID);
|
||||
|
||||
// various numeric fields
|
||||
check!("1234 5678",
|
||||
|
|
@ -674,32 +732,32 @@ fn test_parse() {
|
|||
check!("Apr", [fix!(ShortMonthName)]; month: 4);
|
||||
check!("APR", [fix!(ShortMonthName)]; month: 4);
|
||||
check!("ApR", [fix!(ShortMonthName)]; month: 4);
|
||||
check!("April", [fix!(ShortMonthName)]; _);
|
||||
check!("A", [fix!(ShortMonthName)]; _);
|
||||
check!("Sol", [fix!(ShortMonthName)]; _);
|
||||
check!("April", [fix!(ShortMonthName)]; TOO_LONG); // `Apr` is parsed
|
||||
check!("A", [fix!(ShortMonthName)]; TOO_SHORT);
|
||||
check!("Sol", [fix!(ShortMonthName)]; INVALID);
|
||||
check!("Apr", [fix!(LongMonthName)]; month: 4);
|
||||
check!("Apri", [fix!(LongMonthName)]; _);
|
||||
check!("Apri", [fix!(LongMonthName)]; TOO_LONG); // `Apr` is parsed
|
||||
check!("April", [fix!(LongMonthName)]; month: 4);
|
||||
check!("Aprill", [fix!(LongMonthName)]; _);
|
||||
check!("Aprill", [fix!(LongMonthName)]; TOO_LONG);
|
||||
check!("Aprill", [fix!(LongMonthName), lit!("l")]; month: 4);
|
||||
check!("Aprl", [fix!(LongMonthName), lit!("l")]; month: 4);
|
||||
check!("April", [fix!(LongMonthName), lit!("il")]; _); // do not backtrack
|
||||
check!("April", [fix!(LongMonthName), lit!("il")]; TOO_SHORT); // do not backtrack
|
||||
check!("thu", [fix!(ShortWeekdayName)]; weekday: Weekday::Thu);
|
||||
check!("Thu", [fix!(ShortWeekdayName)]; weekday: Weekday::Thu);
|
||||
check!("THU", [fix!(ShortWeekdayName)]; weekday: Weekday::Thu);
|
||||
check!("tHu", [fix!(ShortWeekdayName)]; weekday: Weekday::Thu);
|
||||
check!("Thursday", [fix!(ShortWeekdayName)]; _);
|
||||
check!("T", [fix!(ShortWeekdayName)]; _);
|
||||
check!("The", [fix!(ShortWeekdayName)]; _);
|
||||
check!("Nop", [fix!(ShortWeekdayName)]; _);
|
||||
check!("Thursday", [fix!(ShortWeekdayName)]; TOO_LONG); // `Thu` is parsed
|
||||
check!("T", [fix!(ShortWeekdayName)]; TOO_SHORT);
|
||||
check!("The", [fix!(ShortWeekdayName)]; INVALID);
|
||||
check!("Nop", [fix!(ShortWeekdayName)]; INVALID);
|
||||
check!("Thu", [fix!(LongWeekdayName)]; weekday: Weekday::Thu);
|
||||
check!("Thur", [fix!(LongWeekdayName)]; _);
|
||||
check!("Thurs", [fix!(LongWeekdayName)]; _);
|
||||
check!("Thur", [fix!(LongWeekdayName)]; TOO_LONG); // `Thu` is parsed
|
||||
check!("Thurs", [fix!(LongWeekdayName)]; TOO_LONG); // ditto
|
||||
check!("Thursday", [fix!(LongWeekdayName)]; weekday: Weekday::Thu);
|
||||
check!("Thursdays", [fix!(LongWeekdayName)]; _);
|
||||
check!("Thursdays", [fix!(LongWeekdayName)]; TOO_LONG);
|
||||
check!("Thursdays", [fix!(LongWeekdayName), lit!("s")]; weekday: Weekday::Thu);
|
||||
check!("Thus", [fix!(LongWeekdayName), lit!("s")]; weekday: Weekday::Thu);
|
||||
check!("Thursday", [fix!(LongWeekdayName), lit!("rsday")]; _); // do not backtrack
|
||||
check!("Thursday", [fix!(LongWeekdayName), lit!("rsday")]; TOO_SHORT); // do not backtrack
|
||||
|
||||
// fixed: am/pm
|
||||
check!("am", [fix!(LowerAmPm)]; hour_div_12: 0);
|
||||
|
|
@ -711,13 +769,13 @@ fn test_parse() {
|
|||
check!("AM", [fix!(UpperAmPm)]; hour_div_12: 0);
|
||||
check!("PM", [fix!(UpperAmPm)]; hour_div_12: 1);
|
||||
check!("Am", [fix!(LowerAmPm)]; hour_div_12: 0);
|
||||
check!(" Am", [fix!(LowerAmPm)]; _);
|
||||
check!("ame", [fix!(LowerAmPm)]; _);
|
||||
check!("a", [fix!(LowerAmPm)]; _);
|
||||
check!("p", [fix!(LowerAmPm)]; _);
|
||||
check!("x", [fix!(LowerAmPm)]; _);
|
||||
check!("xx", [fix!(LowerAmPm)]; _);
|
||||
check!("", [fix!(LowerAmPm)]; _);
|
||||
check!(" Am", [fix!(LowerAmPm)]; INVALID);
|
||||
check!("ame", [fix!(LowerAmPm)]; TOO_LONG); // `am` is parsed
|
||||
check!("a", [fix!(LowerAmPm)]; TOO_SHORT);
|
||||
check!("p", [fix!(LowerAmPm)]; TOO_SHORT);
|
||||
check!("x", [fix!(LowerAmPm)]; TOO_SHORT);
|
||||
check!("xx", [fix!(LowerAmPm)]; INVALID);
|
||||
check!("", [fix!(LowerAmPm)]; TOO_SHORT);
|
||||
|
||||
// fixed: timezone offsets
|
||||
check!("+00:00", [fix!(TimezoneOffset)]; offset: 0);
|
||||
|
|
@ -730,33 +788,35 @@ fn test_parse() {
|
|||
check!("-04:56", [fix!(TimezoneOffset)]; offset: -296 * 60);
|
||||
check!("+24:00", [fix!(TimezoneOffset)]; offset: 24 * 60 * 60);
|
||||
check!("-24:00", [fix!(TimezoneOffset)]; offset: -24 * 60 * 60);
|
||||
check!("+24:01", [fix!(TimezoneOffset)]; _);
|
||||
check!("-24:01", [fix!(TimezoneOffset)]; _);
|
||||
check!("+24:01", [fix!(TimezoneOffset)]; OUT_OF_RANGE);
|
||||
check!("-24:01", [fix!(TimezoneOffset)]; OUT_OF_RANGE);
|
||||
check!("+00:59", [fix!(TimezoneOffset)]; offset: 59 * 60);
|
||||
check!("+00:60", [fix!(TimezoneOffset)]; _);
|
||||
check!("+00:99", [fix!(TimezoneOffset)]; _);
|
||||
check!("+99:00", [fix!(TimezoneOffset)]; _);
|
||||
check!("#12:34", [fix!(TimezoneOffset)]; _);
|
||||
check!("12:34", [fix!(TimezoneOffset)]; _);
|
||||
check!("+12:34 ", [fix!(TimezoneOffset)]; _);
|
||||
check!("+00:60", [fix!(TimezoneOffset)]; OUT_OF_RANGE);
|
||||
check!("+00:99", [fix!(TimezoneOffset)]; OUT_OF_RANGE);
|
||||
check!("+99:00", [fix!(TimezoneOffset)]; OUT_OF_RANGE);
|
||||
check!("#12:34", [fix!(TimezoneOffset)]; INVALID);
|
||||
check!("12:34", [fix!(TimezoneOffset)]; INVALID);
|
||||
check!("+12:34 ", [fix!(TimezoneOffset)]; TOO_LONG);
|
||||
check!(" +12:34", [fix!(TimezoneOffset)]; offset: 754 * 60);
|
||||
check!("\t -12:34", [fix!(TimezoneOffset)]; offset: -754 * 60);
|
||||
check!("+", [fix!(TimezoneOffset)]; _);
|
||||
check!("+1", [fix!(TimezoneOffset)]; _);
|
||||
check!("+12", [fix!(TimezoneOffset)]; _);
|
||||
check!("+123", [fix!(TimezoneOffset)]; _);
|
||||
check!("", [fix!(TimezoneOffset)]; TOO_SHORT);
|
||||
check!("+", [fix!(TimezoneOffset)]; TOO_SHORT);
|
||||
check!("+1", [fix!(TimezoneOffset)]; TOO_SHORT);
|
||||
check!("+12", [fix!(TimezoneOffset)]; TOO_SHORT);
|
||||
check!("+123", [fix!(TimezoneOffset)]; TOO_SHORT);
|
||||
check!("+1234", [fix!(TimezoneOffset)]; offset: 754 * 60);
|
||||
check!("+12345", [fix!(TimezoneOffset)]; _);
|
||||
check!("+12345", [fix!(TimezoneOffset)]; TOO_LONG);
|
||||
check!("+12345", [fix!(TimezoneOffset), num!(Day)]; offset: 754 * 60, day: 5);
|
||||
check!("Z", [fix!(TimezoneOffset)]; _);
|
||||
check!("Z", [fix!(TimezoneOffset)]; INVALID);
|
||||
check!("z", [fix!(TimezoneOffset)]; INVALID);
|
||||
check!("Z", [fix!(TimezoneOffsetZ)]; offset: 0);
|
||||
check!("z", [fix!(TimezoneOffsetZ)]; offset: 0);
|
||||
check!("Y", [fix!(TimezoneOffsetZ)]; _);
|
||||
check!("Y", [fix!(TimezoneOffsetZ)]; INVALID);
|
||||
check!("Zulu", [fix!(TimezoneOffsetZ), lit!("ulu")]; offset: 0);
|
||||
check!("zulu", [fix!(TimezoneOffsetZ), lit!("ulu")]; offset: 0);
|
||||
check!("+1234ulu", [fix!(TimezoneOffsetZ), lit!("ulu")]; offset: 754 * 60);
|
||||
check!("+12:34ulu", [fix!(TimezoneOffsetZ), lit!("ulu")]; offset: 754 * 60);
|
||||
check!("???", [fix!(TimezoneName)]; _); // not allowed
|
||||
check!("???", [fix!(TimezoneName)]; BAD_FORMAT); // not allowed
|
||||
|
||||
// some practical examples
|
||||
check!("2015-02-04T14:37:05+09:00",
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load Diff
Loading…
Reference in New Issue