Version 1.2.0

30: Handle panic from large integers r=bspeice a=gillespiecd

1. Opt to use `NaiveDate::from_ymd_opt` so that a panic can be avoided, this will handle the issue with large integers causing panics.

I added the test case from the issue (and another), which should hopefully fix #26 .

Co-authored-by: Chris Gillespie <6572184+gillespiecd@users.noreply.github.com>

.gitignore

@@ -4,4 +4,5 @@
 Cargo.lock
 .vscode
 *.pyc
-.idea/
+.idea/
+*.swp

.travis.yml

@@ -1,120 +1,40 @@
-# Based on the "trust" template v0.1.2
-# https://github.com/japaric/trust/tree/v0.1.2
-
-dist: trusty
 language: rust
-services: docker
-sudo: required
 
-env:
-  global:
-    - CRATE_NAME=dtparse
-
-matrix:
+jobs:
   include:
-    # Android
-    - env: TARGET=aarch64-linux-android DISABLE_TESTS=1
-    - env: TARGET=arm-linux-androideabi DISABLE_TESTS=1
-    - env: TARGET=armv7-linux-androideabi DISABLE_TESTS=1
-    - env: TARGET=i686-linux-android DISABLE_TESTS=1
-    - env: TARGET=x86_64-linux-android DISABLE_TESTS=1
+  - rust: stable
+    os: linux
+  - rust: 1.28.0
+    os: linux
+    env: DISABLE_TOOLS=true
+  - rust: stable
+    os: osx
+  - rust: stable-msvc
+    os: windows
+  - rust: stable
+    os: windows
 
-    # iOS
-    - env: TARGET=aarch64-apple-ios DISABLE_TESTS=1
-      os: osx
-    - env: TARGET=armv7-apple-ios DISABLE_TESTS=1
-      os: osx
-    - env: TARGET=armv7s-apple-ios DISABLE_TESTS=1
-      os: osx
-    - env: TARGET=i386-apple-ios DISABLE_TESTS=1
-      os: osx
-    - env: TARGET=x86_64-apple-ios DISABLE_TESTS=1
-      os: osx
+cache:
+  - cargo
 
-    # Linux
-    - env: TARGET=aarch64-unknown-linux-gnu
-    - env: TARGET=arm-unknown-linux-gnueabi
-    - env: TARGET=armv7-unknown-linux-gnueabihf
-    - env: TARGET=i686-unknown-linux-gnu
-    - env: TARGET=i686-unknown-linux-musl
-    - env: TARGET=mips-unknown-linux-gnu
-    - env: TARGET=mips64-unknown-linux-gnuabi64
-    - env: TARGET=mips64el-unknown-linux-gnuabi64
-    - env: TARGET=mipsel-unknown-linux-gnu
-    - env: TARGET=powerpc-unknown-linux-gnu
-    - env: TARGET=powerpc64-unknown-linux-gnu
-    - env: TARGET=powerpc64le-unknown-linux-gnu
-    - env: TARGET=s390x-unknown-linux-gnu DISABLE_TESTS=1
-    - env: TARGET=x86_64-unknown-linux-gnu
-    - env: TARGET=x86_64-unknown-linux-musl
-
-    # OSX
-    - env: TARGET=i686-apple-darwin
-      os: osx
-    - env: TARGET=x86_64-apple-darwin
-      os: osx
-
-    # *BSD
-    - env: TARGET=i686-unknown-freebsd DISABLE_TESTS=1
-    - env: TARGET=x86_64-unknown-freebsd DISABLE_TESTS=1
-    - env: TARGET=x86_64-unknown-netbsd DISABLE_TESTS=1
-
-    # Windows
-    - env: TARGET=x86_64-pc-windows-gnu
-
-    # Nightly and Beta
-    - env: TARGET=x86_64-unknown-linux-gnu
-      rust: nightly
-    - env: TARGET=x86_64-apple-darwin
-      os: osx
-      rust: nightly
-    - env: TARGET=x86_64-unknown-linux-gnu
-      rust: beta
-    - env: TARGET=x86_64-apple-darwin
-      os: osx
-      rust: beta
-
-    # Historical Rust versions
-    - env: TARGET=x86_64-unknown-linux-gnu
-      rust: 1.21.0
-    - env: TARGET=x86_64-unknown-linux-gnu
-      rust: 1.22.0
-    - env: TARGET=x86_64-unknown-linux-gnu
-      rust: 1.23.0
-    - env: TARGET=x86_64-unknown-linux-gnu
-      rust: 1.24.0
-    - env: TARGET=x86_64-unknown-linux-gnu
-      rust: 1.25.0
-    - env: TARGET=x86_64-unknown-linux-gnu
-      rust: 1.26.0
-    - env: TARGET=x86_64-unknown-linux-gnu
-      rust: 1.27.0
-    
-
-before_install:
-  - set -e
-  - rustup self update
-
-install:
-  - sh ci/install.sh
-  - source ~/.cargo/env || true
+before_script:
+  - rustup show
+  # CMake doesn't like the `sh.exe` provided by Git being in PATH
+  - if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then rm "C:/Program Files/Git/usr/bin/sh.exe"; fi
+  - if [[ "$DISABLE_TOOLS" == "" ]]; then rustup component add clippy; rustup component add rustfmt; fi
 
 script:
-  - bash ci/script.sh
+  - if [[ "$DISABLE_TOOLS" == "" ]]; then cargo clippy --all && cargo fmt --all -- --check; fi
 
-after_script: set +e
-
-cache: cargo
-before_cache:
-  # Travis can't cache files that are not readable by "others"
-  - chmod -R a+r $HOME/.cargo
+  # For default build, split up compilation and tests so we can track build times
+  - cargo test --no-run
+  - cargo test
+  - cargo test --release --no-run
+  - cargo test --release
 
 branches:
   only:
-    # release tags
-    - /^v\d+\.\d+\.\d+.*$/
     - master
-
-notifications:
-  email:
-    on_success: never
+    - staging
+    - trying
+    

CHANGELOG.md

@@ -1,3 +1,19 @@
+Version 1.0.3 (2018-09-18)
+==========================
+
+Misc
+----
+
+- Changed the default `parse` function to use a static parser
+
+Version 1.0.2 (2018-08-14)
+==========================
+
+Misc
+----
+
+- Add tests for WASM
+
 Version 1.0.1 (2018-08-11)
 ==========================
 
@@ -15,4 +31,4 @@ Version 1.0.0 (2018-08-03)
 ==========================
 
 Initial release. Passes all relevant unit tests from Python's
-`dateutil` project.
+`dateutil` project.

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "dtparse"
-version = "1.0.1"
+version = "1.2.0"
 authors = ["Bradlee Speice <bradlee@speice.io>"]
 description = "A dateutil-compatible timestamp parser for Rust"
 repository = "https://github.com/bspeice/dtparse.git"
@@ -10,7 +10,6 @@ license = "Apache-2.0"
 
 [badges]
 travis-ci = { repository = "bspeice/dtparse" }
-appveyor = { repository = "bspeice/dtparse" }
 maintenance = { status = "passively-maintained" }
 
 [lib]
@@ -18,6 +17,7 @@ name = "dtparse"
 
 [dependencies]
 chrono = "0.4"
+chrono-tz = "0.5"
 lazy_static = "1.1"
 num-traits = "0.2"
-rust_decimal = "0.10"
+rust_decimal = "^0.10.1"

README.md

@@ -1,7 +1,6 @@
 # dtparse
 
 [![travisci](https://travis-ci.org/bspeice/dtparse.svg?branch=master)](https://travis-ci.org/bspeice/dtparse)
-[![appveyor](https://ci.appveyor.com/api/projects/status/r4de76tg9utfjva1/branch/master?svg=true)](https://ci.appveyor.com/project/bspeice/dtparse/branch/master)
 [![crates.io](https://img.shields.io/crates/v/dtparse.svg)](https://crates.io/crates/dtparse)
 [![docs.rs](https://docs.rs/dtparse/badge.svg)](https://docs.rs/dtparse/)
 
@@ -67,8 +66,8 @@ Further examples can be found in the [examples](examples) directory on internati
 
 # Usage
 
-`dtparse` requires a minimum Rust version of 1.21 to build, but is tested on Windows, OSX,
-BSD, and Linux. The build is also compiled against the iOS and Android SDK's, but is not
+`dtparse` requires a minimum Rust version of 1.28 to build, but is tested on Windows, OSX,
+BSD, Linux, and WASM. The build is also compiled against the iOS and Android SDK's, but is not
 tested against them.
 
 [dateutil]: https://github.com/dateutil/dateutil

appveyor.yml

@@ -1,121 +0,0 @@
-# Appveyor configuration template for Rust using rustup for Rust installation
-# https://github.com/starkat99/appveyor-rust
-
-## Operating System (VM environment) ##
-
-# Rust needs at least Visual Studio 2013 Appveyor OS for MSVC targets.
-os: Visual Studio 2017
-
-## Build Matrix ##
-
-# This configuration will setup a build for each channel & target combination (12 windows
-# combinations in all).
-#
-# There are 3 channels: stable, beta, and nightly.
-#
-# Alternatively, the full version may be specified for the channel to build using that specific
-# version (e.g. channel: 1.5.0)
-#
-# The values for target are the set of windows Rust build targets. Each value is of the form
-#
-# ARCH-pc-windows-TOOLCHAIN
-#
-# Where ARCH is the target architecture, either x86_64 or i686, and TOOLCHAIN is the linker
-# toolchain to use, either msvc or gnu. See https://www.rust-lang.org/downloads.html#win-foot for
-# a description of the toolchain differences.
-# See https://github.com/rust-lang-nursery/rustup.rs/#toolchain-specification for description of
-# toolchains and host triples.
-#
-# Comment out channel/target combos you do not wish to build in CI.
-#
-# You may use the `cargoflags` and `RUSTFLAGS` variables to set additional flags for cargo commands
-# and rustc, respectively. For instance, you can uncomment the cargoflags lines in the nightly
-# channels to enable unstable features when building for nightly. Or you could add additional
-# matrix entries to test different combinations of features.
-environment:
-  matrix:
-
-### MSVC Toolchains ###
-
-  # Stable 64-bit MSVC
-    - channel: stable
-      target: x86_64-pc-windows-msvc
-  # Stable 32-bit MSVC
-    - channel: stable
-      target: i686-pc-windows-msvc
-  # Beta 64-bit MSVC
-    - channel: beta
-      target: x86_64-pc-windows-msvc
-  # Beta 32-bit MSVC
-    - channel: beta
-      target: i686-pc-windows-msvc
-  # Nightly 64-bit MSVC
-    - channel: nightly
-      target: x86_64-pc-windows-msvc
-      #cargoflags: --features "unstable"
-  # Nightly 32-bit MSVC
-    - channel: nightly
-      target: i686-pc-windows-msvc
-      #cargoflags: --features "unstable"
-
-### GNU Toolchains ###
-
-  # Stable 64-bit GNU
-    - channel: stable
-      target: x86_64-pc-windows-gnu
-  # Stable 32-bit GNU
-    - channel: stable
-      target: i686-pc-windows-gnu
-  # Beta 64-bit GNU
-    - channel: beta
-      target: x86_64-pc-windows-gnu
-  # Beta 32-bit GNU
-    - channel: beta
-      target: i686-pc-windows-gnu
-  # Nightly 64-bit GNU
-    - channel: nightly
-      target: x86_64-pc-windows-gnu
-      #cargoflags: --features "unstable"
-  # Nightly 32-bit GNU
-    - channel: nightly
-      target: i686-pc-windows-gnu
-      #cargoflags: --features "unstable"
-
-### Allowed failures ###
-
-# See Appveyor documentation for specific details. In short, place any channel or targets you wish
-# to allow build failures on (usually nightly at least is a wise choice). This will prevent a build
-# or test failure in the matching channels/targets from failing the entire build.
-matrix:
-  allow_failures:
-    - channel: nightly
-
-# If you only care about stable channel build failures, uncomment the following line:
-    #- channel: beta
-
-## Install Script ##
-
-# This is the most important part of the Appveyor configuration. This installs the version of Rust
-# specified by the 'channel' and 'target' environment variables from the build matrix. This uses
-# rustup to install Rust.
-#
-# For simple configurations, instead of using the build matrix, you can simply set the
-# default-toolchain and default-host manually here.
-install:
-  - appveyor DownloadFile https://win.rustup.rs/ -FileName rustup-init.exe
-  - rustup-init -yv --default-toolchain %channel% --default-host %target%
-  - set PATH=%PATH%;%USERPROFILE%\.cargo\bin
-  - rustc -vV
-  - cargo -vV
-
-## Build Script ##
-
-# 'cargo test' takes care of building for us, so disable Appveyor's build stage. This prevents
-# the "directory does not contain a project or solution file" error.
-build: false
-
-# Uses 'cargo test' to run tests and build. Alternatively, the project may call compiled programs
-#directly or perform other testing commands. Rust will automatically be placed in the PATH
-# environment variable.
-test_script:
-- cargo test --verbose %cargoflags%

bors.toml

@@ -0,0 +1,4 @@
+status = [
+  "continuous-integration/travis-ci/push",
+]
+delete_merged_branches = true

build_pycompat.py

@@ -1,3 +1,4 @@
+#!/usr/bin/python3
 from dateutil.parser import parse
 from dateutil.tz import tzutc
 from datetime import datetime
@@ -80,7 +81,7 @@ tests = {
         'Thu Sep 25 10:36:28 BRST 2003', '1996.07.10 AD at 15:08:56 PDT',
         'Tuesday, April 12, 1952 AD 3:30:42pm PST',
         'November 5, 1994, 8:15:30 am EST', '1994-11-05T08:15:30-05:00',
-        '1994-11-05T08:15:30Z', '1976-07-04T00:01:02Z',
+        '1994-11-05T08:15:30Z', '1976-07-04T00:01:02Z', '1986-07-05T08:15:30z',
         'Tue Apr 4 00:22:12 PDT 1995'
     ],
     'test_fuzzy_tzinfo': [
@@ -232,7 +233,7 @@ fn parse_and_assert(
     tzinfos: &HashMap<String, i32>,
 ) {
 
-    let mut parser = Parser::new(info);
+    let parser = Parser::new(info);
     let rs_parsed = parser.parse(
         s,
         dayfirst,
@@ -282,7 +283,7 @@ fn parse_fuzzy_and_assert(
     tzinfos: &HashMap<String, i32>,
 ) {
 
-    let mut parser = Parser::new(info);
+    let parser = Parser::new(info);
     let rs_parsed = parser.parse(
         s,
         dayfirst,

build_pycompat_tokenizer.py

@@ -1,3 +1,4 @@
+#!/usr/bin/python3
 from dateutil.parser import _timelex
 
 from build_pycompat import tests

ci/script.sh

@@ -14,7 +14,27 @@ main() {
     cross test --target $TARGET --release
 }
 
+main_web() {
+    CARGO_WEB_RELEASE="$(curl -L -s -H 'Accept: application/json' https://github.com/koute/cargo-web/releases/latest)"
+    CARGO_WEB_VERSION="$(echo $CARGO_WEB_RELEASE | sed -e 's/.*"tag_name":"\([^"]*\)".*/\1/')"
+    CARGO_WEB_URL="https://github.com/koute/cargo-web/releases/download/$CARGO_WEB_VERSION/cargo-web-x86_64-unknown-linux-gnu.gz"
+
+    echo "Downloading cargo-web from: $CARGO_WEB_URL"
+    curl -L "$CARGO_WEB_URL" | gzip -d > cargo-web
+    chmod +x cargo-web
+
+    mkdir -p ~/.cargo/bin
+    mv cargo-web ~/.cargo/bin
+
+    cargo web build --target $TARGET
+    cargo web test --target $TARGET --release
+}
+
 # we don't run the "test phase" when doing deploys
 if [ -z $TRAVIS_TAG ]; then
-    main
-fi
+    if [ -z "$USE_CARGO_WEB" ]; then
+        main
+    else
+        main_web
+    fi
+fi

examples/russian.rs

@@ -8,7 +8,6 @@ use dtparse::ParserInfo;
 use std::collections::HashMap;
 
 fn main() {
-
     // In this example, we'll just swap the default "months" parameter
     // with a version in Russian. Lovingly taken from:
     // https://github.com/dateutil/dateutil/blob/99f5770e7c63aa049b28abe465d7f1cc25b63fd2/dateutil/test/test_parser.py#L244
@@ -26,14 +25,24 @@ fn main() {
         vec!["сен", "Сентябрь"],
         vec!["окт", "Октябрь"],
         vec!["ноя", "Ноябрь"],
-        vec!["дек", "Декабрь"]
+        vec!["дек", "Декабрь"],
     ]);
 
-    let mut p = Parser::new(info);
+    let p = Parser::new(info);
 
     assert_eq!(
-        p.parse("10 Сентябрь 2015 10:20", None, None, false, false, None, false, &HashMap::new())
-            .unwrap().0,
+        p.parse(
+            "10 Сентябрь 2015 10:20",
+            None,
+            None,
+            false,
+            false,
+            None,
+            false,
+            &HashMap::new()
+        )
+        .unwrap()
+        .0,
         NaiveDate::from_ymd(2015, 9, 10).and_hms(10, 20, 0)
     );
-}
+}

src/lib.rs

@@ -1,26 +1,27 @@
 #![deny(missing_docs)]
+#![cfg_attr(test, allow(unknown_lints))]
 #![cfg_attr(test, deny(warnings))]
 
 //! # dtparse
 //! The fully-featured "even I couldn't understand that" time parser.
 //! Designed to take in strings and give back sensible dates and times.
-//! 
+//!
 //! dtparse has its foundations in the [`dateutil`](dateutil) library for
 //! Python, which excels at taking "interesting" strings and trying to make
 //! sense of the dates and times they contain. A couple of quick examples
 //! from the test cases should give some context:
-//! 
+//!
 //! ```rust,ignore (tests-dont-compile-on-old-rust)
 //! # extern crate chrono;
 //! # extern crate dtparse;
 //! use chrono::prelude::*;
 //! use dtparse::parse;
-//! 
+//!
 //! assert_eq!(
 //!     parse("2008.12.30"),
 //!     Ok((NaiveDate::from_ymd(2008, 12, 30).and_hms(0, 0, 0), None))
 //! );
-//! 
+//!
 //! // It can even handle timezones!
 //! assert_eq!(
 //!     parse("January 4, 2024; 18:30:04 +02:00"),
@@ -30,17 +31,17 @@
 //!     ))
 //! );
 //! ```
-//! 
+//!
 //! And we can even handle fuzzy strings where dates/times aren't the
 //! only content if we dig into the implementation a bit!
-//! 
+//!
 //! ```rust,ignore (tests-dont-compile-on-old-rust)
 //! # extern crate chrono;
 //! # extern crate dtparse;
 //! use chrono::prelude::*;
 //! use dtparse::Parser;
 //! # use std::collections::HashMap;
-//! 
+//!
 //! let mut p = Parser::default();
 //! assert_eq!(
 //!     p.parse(
@@ -58,15 +59,22 @@
 //!     ))
 //! );
 //! ```
-//! 
+//!
 //! Further examples can be found in the `examples` directory on international usage.
-//! 
+//!
+//! # Usage
+//!
+//! `dtparse` requires a minimum Rust version of 1.28 to build, but is tested on Windows, OSX,
+//! BSD, Linux, and WASM. The build is also compiled against the iOS and Android SDK's, but is not
+//! tested against them.
+//!
 //! [dateutil]: https://github.com/dateutil/dateutil
 
 #[macro_use]
 extern crate lazy_static;
 
 extern crate chrono;
+extern crate chrono_tz;
 extern crate num_traits;
 extern crate rust_decimal;
 
@@ -81,8 +89,10 @@ use chrono::Timelike;
 use num_traits::cast::ToPrimitive;
 use rust_decimal::Decimal;
 use rust_decimal::Error as DecimalError;
-use std::collections::HashMap;
 use std::cmp::min;
+use std::collections::HashMap;
+use std::error::Error;
+use std::fmt;
 use std::num::ParseIntError;
 use std::str::FromStr;
 use std::vec::Vec;
@@ -102,6 +112,7 @@ lazy_static! {
     static ref ONE: Decimal = Decimal::new(1, 0);
     static ref TWENTY_FOUR: Decimal = Decimal::new(24, 0);
     static ref SIXTY: Decimal = Decimal::new(60, 0);
+    static ref DEFAULT_PARSER: Parser = Parser::default();
 }
 
 impl From<DecimalError> for ParseError {
@@ -136,8 +147,18 @@ pub enum ParseError {
     /// Parser unable to make sense of year/month/day parameters in the time string;
     /// please report to maintainer as the timestring likely exposes a bug in implementation
     YearMonthDayError(&'static str),
+    /// Parser unable to find any date/time-related content in the supplied string
+    NoDate,
 }
 
+impl fmt::Display for ParseError {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "{:?}", self)
+    }
+}
+
+impl Error for ParseError {}
+
 type ParseResult<I> = Result<I, ParseError>;
 
 pub(crate) fn tokenize(parse_string: &str) -> Vec<String> {
@@ -147,16 +168,15 @@ pub(crate) fn tokenize(parse_string: &str) -> Vec<String> {
 
 /// Utility function for `ParserInfo` that helps in constructing
 /// the attributes that make up the `ParserInfo` container
-#[cfg_attr(feature = "cargo-clippy", allow(get_unwrap))] // Recommended suggestion of &vec[0] doesn't compile
 pub fn parse_info(vec: Vec<Vec<&str>>) -> HashMap<String, usize> {
     let mut m = HashMap::new();
 
     if vec.len() == 1 {
-        for (i, val) in vec.get(0).unwrap().into_iter().enumerate() {
+        for (i, val) in vec.get(0).unwrap().iter().enumerate() {
             m.insert(val.to_lowercase(), i);
         }
     } else {
-        for (i, val_vec) in vec.into_iter().enumerate() {
+        for (i, val_vec) in vec.iter().enumerate() {
             for val in val_vec {
                 m.insert(val.to_lowercase(), i);
             }
@@ -167,7 +187,7 @@ pub fn parse_info(vec: Vec<Vec<&str>>) -> HashMap<String, usize> {
 }
 
 /// Container for specific tokens to be recognized during parsing.
-/// 
+///
 /// - `jump`: Values that indicate the end of a token for parsing and can be ignored
 /// - `weekday`: Names of the days of the week
 /// - `months`: Names of the months
@@ -180,7 +200,7 @@ pub fn parse_info(vec: Vec<Vec<&str>>) -> HashMap<String, usize> {
 /// - `yearfirst`: Upon encountering an ambiguous date, treat the first value as the year
 /// - `year`: The current year
 /// - `century`: The first year in the current century
-/// 
+///
 /// Please note that if both `dayfirst` and `yearfirst` are true, years take precedence
 /// and will be parsed as "YDM"
 #[derive(Debug, PartialEq)]
@@ -221,12 +241,10 @@ impl Default for ParserInfo {
         let century = year / 100 * 100;
 
         ParserInfo {
-            jump: parse_info(vec![
-                vec![
-                    " ", ".", ",", ";", "-", "/", "'", "at", "on", "and", "ad", "m", "t", "of",
-                    "st", "nd", "rd", "th",
-                ],
-            ]),
+            jump: parse_info(vec![vec![
+                " ", ".", ",", ";", "-", "/", "'", "at", "on", "and", "ad", "m", "t", "of", "st",
+                "nd", "rd", "th",
+            ]]),
             weekday: parse_info(vec![
                 vec!["Mon", "Monday"],
                 vec!["Tue", "Tues", "Tuesday"],
@@ -331,10 +349,13 @@ impl ParserInfo {
             res.year = Some(self.convertyear(y, res.century_specified))
         };
 
-        if res.tzoffset == Some(0) && res.tzname.is_none() || res.tzname == Some("Z".to_owned()) {
+        if (res.tzoffset == Some(0) && res.tzname.is_none())
+            || (res.tzname == Some("Z".to_owned()) || res.tzname == Some("z".to_owned()))
+        {
             res.tzname = Some("UTC".to_owned());
             res.tzoffset = Some(0);
-        } else if res.tzoffset != Some(0) && res.tzname.is_some()
+        } else if res.tzoffset != Some(0)
+            && res.tzname.is_some()
             && self.utczone_index(res.tzname.as_ref().unwrap())
         {
             res.tzoffset = Some(0);
@@ -351,16 +372,16 @@ fn days_in_month(year: i32, month: i32) -> Result<u32, ParseError> {
     };
 
     match month {
-        2 => if leap_year {
-            Ok(29)
-        } else {
-            Ok(28)
-        },
+        2 => {
+            if leap_year {
+                Ok(29)
+            } else {
+                Ok(28)
+            }
+        }
         1 | 3 | 5 | 7 | 8 | 10 | 12 => Ok(31),
         4 | 6 | 9 | 11 => Ok(30),
-        _ => {
-            Err(ParseError::ImpossibleTimestamp("Invalid month"))
-        }
+        _ => Err(ParseError::ImpossibleTimestamp("Invalid month")),
     }
 }
 
@@ -414,9 +435,7 @@ impl YMD {
                 Some(YMDLabel::Month) => {
                     return Err(ParseError::ImpossibleTimestamp("Invalid month"))
                 }
-                Some(YMDLabel::Day) => {
-                    return Err(ParseError::ImpossibleTimestamp("Invalid day"))
-                }
+                Some(YMDLabel::Day) => return Err(ParseError::ImpossibleTimestamp("Invalid day")),
             }
         }
 
@@ -428,9 +447,7 @@ impl YMD {
                 Some(YMDLabel::Month) => {
                     return Err(ParseError::ImpossibleTimestamp("Invalid month"))
                 }
-                Some(YMDLabel::Day) => {
-                    return Err(ParseError::ImpossibleTimestamp("Invalid day"))
-                }
+                Some(YMDLabel::Day) => return Err(ParseError::ImpossibleTimestamp("Invalid day")),
             }
         }
 
@@ -491,23 +508,19 @@ impl YMD {
         }
 
         if self._ymd.len() != strids.len() {
-            return Err(ParseError::YearMonthDayError("Tried to resolve year, month, and day without enough information"));
+            return Err(ParseError::YearMonthDayError(
+                "Tried to resolve year, month, and day without enough information",
+            ));
         }
 
         Ok((
-            strids
-                .get(&YMDLabel::Year)
-                .map(|i| self._ymd[*i]),
-            strids
-                .get(&YMDLabel::Month)
-                .map(|i| self._ymd[*i]),
-            strids
-                .get(&YMDLabel::Day)
-                .map(|i| self._ymd[*i]),
+            strids.get(&YMDLabel::Year).map(|i| self._ymd[*i]),
+            strids.get(&YMDLabel::Month).map(|i| self._ymd[*i]),
+            strids.get(&YMDLabel::Day).map(|i| self._ymd[*i]),
         ))
     }
 
-    #[cfg_attr(feature = "cargo-clippy", allow(needless_return))]
+    #[allow(clippy::needless_return)]
     fn resolve_ymd(
         &mut self,
         yearfirst: bool,
@@ -516,28 +529,24 @@ impl YMD {
         let len_ymd = self._ymd.len();
 
         let mut strids: HashMap<YMDLabel, usize> = HashMap::new();
-        self.ystridx
-            .map(|u| strids.insert(YMDLabel::Year, u));
-        self.mstridx
-            .map(|u| strids.insert(YMDLabel::Month, u));
-        self.dstridx
-            .map(|u| strids.insert(YMDLabel::Day, u));
+        self.ystridx.map(|u| strids.insert(YMDLabel::Year, u));
+        self.mstridx.map(|u| strids.insert(YMDLabel::Month, u));
+        self.dstridx.map(|u| strids.insert(YMDLabel::Day, u));
 
         // TODO: More Rustiomatic way of doing this?
-        if len_ymd == strids.len() && !strids.is_empty()
-            || (len_ymd == 3 && strids.len() == 2)
-        {
+        if len_ymd == strids.len() && !strids.is_empty() || (len_ymd == 3 && strids.len() == 2) {
             return self.resolve_from_stridxs(&mut strids);
         };
 
         // Received year, month, day, and ???
         if len_ymd > 3 {
-            return Err(ParseError::YearMonthDayError("Received extra tokens in resolving year, month, and day"));
+            return Err(ParseError::YearMonthDayError(
+                "Received extra tokens in resolving year, month, and day",
+            ));
         }
 
         match (len_ymd, self.mstridx) {
-            (1, Some(val)) |
-            (2, Some(val)) => {
+            (1, Some(val)) | (2, Some(val)) => {
                 let other = if len_ymd == 1 {
                     self._ymd[0]
                 } else {
@@ -547,7 +556,7 @@ impl YMD {
                     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));
@@ -559,28 +568,29 @@ impl YMD {
                     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) {
                     return Ok((Some(self._ymd[0]), Some(self._ymd[1]), Some(self._ymd[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!?
                 if self._ymd[1] > 31 {
                     return Ok((Some(self._ymd[2]), Some(self._ymd[1]), Some(self._ymd[0])));
                 }
                 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)
                 {
                     if dayfirst && self._ymd[2] <= 12 {
@@ -591,8 +601,10 @@ impl YMD {
                     return Ok((Some(self._ymd[2]), Some(self._ymd[1]), Some(self._ymd[0])));
                 }
                 return Ok((Some(self._ymd[2]), Some(self._ymd[0]), Some(self._ymd[1])));
-            },
-            (_, _) => { return Ok((None, None, None)); },
+            }
+            (_, _) => {
+                return Ok((None, None, None));
+            }
         }
     }
 }
@@ -614,6 +626,31 @@ struct ParsingResult {
     any_unused_tokens: Vec<String>,
 }
 
+macro_rules! option_len {
+    ($o:expr) => {{
+        if $o.is_some() {
+            1
+        } else {
+            0
+        }
+    }};
+}
+
+impl ParsingResult {
+    fn len(&self) -> usize {
+        option_len!(self.year)
+            + option_len!(self.month)
+            + option_len!(self.day)
+            + option_len!(self.weekday)
+            + option_len!(self.hour)
+            + option_len!(self.minute)
+            + option_len!(self.second)
+            + option_len!(self.microsecond)
+            + option_len!(self.tzname)
+            + option_len!(self.ampm)
+    }
+}
+
 /// Parser is responsible for doing the actual work of understanding a time string.
 /// The root level `parse` function is responsible for constructing a default `Parser`
 /// and triggering its behavior.
@@ -624,7 +661,7 @@ pub struct Parser {
 
 impl Parser {
     /// Create a new `Parser` instance using the provided `ParserInfo`.
-    /// 
+    ///
     /// This method allows you to set up a parser to handle different
     /// names for days of the week, months, etc., enabling customization
     /// for different languages or extra values.
@@ -635,36 +672,36 @@ impl Parser {
     /// Main method to trigger parsing of a string using the previously-provided
     /// parser information. Returns a naive timestamp along with timezone and
     /// unused tokens if available.
-    /// 
+    ///
     /// `dayfirst` and `yearfirst` force parser behavior in the event of ambiguous
     /// dates. Consider the following scenarios where we parse the string '01.02.03'
-    /// 
+    ///
     /// - `dayfirst=Some(true)`, `yearfirst=None`: Results in `February 2, 2003`
     /// - `dayfirst=None`, `yearfirst=Some(true)`: Results in `February 3, 2001`
     /// - `dayfirst=Some(true)`, `yearfirst=Some(true)`: Results in `March 2, 2001`
-    /// 
+    ///
     /// `fuzzy` enables fuzzy parsing mode, allowing the parser to skip tokens if
     /// they are unrecognized. However, the unused tokens will not be returned
     /// unless `fuzzy_with_tokens` is set as `true`.
-    /// 
+    ///
     /// `default` is the timestamp used to infer missing values, and is midnight
     /// of the current day by default. For example, when parsing the text '2003',
     /// we will use the current month and day as a default value, leading to a
     /// result of 'March 3, 2003' if the function was run using a default of
     /// March 3rd.
-    /// 
+    ///
     /// `ignoretz` forces the parser to ignore timezone information even if it
     /// is recognized in the time string
-    /// 
+    ///
     /// `tzinfos` is a map of timezone names to the offset seconds. For example,
     /// the parser would ignore the 'EST' part of the string in '10 AM EST'
     /// unless you added a `tzinfos` map of `{"EST": "14400"}`. Please note that
     /// timezone name support (i.e. "EST", "BRST") is not available by default
     /// at the moment, they must be added through `tzinfos` at the moment in
     /// order to be resolved.
-    #[cfg_attr(feature = "cargo-clippy", allow(too_many_arguments))] // Need to release a 2.0 for changing public API
+    #[allow(clippy::too_many_arguments)]
     pub fn parse(
-        &mut self,
+        &self,
         timestr: &str,
         dayfirst: Option<bool>,
         yearfirst: Option<bool>,
@@ -681,6 +718,10 @@ impl Parser {
         let (res, tokens) =
             self.parse_with_tokens(timestr, dayfirst, yearfirst, fuzzy, fuzzy_with_tokens)?;
 
+        if res.len() == 0 {
+            return Err(ParseError::NoDate);
+        }
+
         let naive = self.build_naive(&res, &default_ts)?;
 
         if !ignoretz {
@@ -691,9 +732,9 @@ impl Parser {
         }
     }
 
-    #[cfg_attr(feature = "cargo-clippy", allow(cyclomatic_complexity))] // Imitating Python API is priority
+    #[allow(clippy::cognitive_complexity)] // Imitating Python API is priority
     fn parse_with_tokens(
-        &mut self,
+        &self,
         timestr: &str,
         dayfirst: Option<bool>,
         yearfirst: Option<bool>,
@@ -738,16 +779,18 @@ impl Parser {
                         // Jan-01[-99]
                         let sep = &l[i + 1];
                         // TODO: This seems like a very unsafe unwrap
-                        ymd.append(l[i + 2].parse::<i32>().unwrap(), &l[i + 2], None)?;
+                        ymd.append(l[i + 2].parse::<i32>()?, &l[i + 2], None)?;
 
                         if i + 3 < len_l && &l[i + 3] == sep {
                             // Jan-01-99
-                            ymd.append(l[i + 4].parse::<i32>().unwrap(), &l[i + 4], None)?;
+                            ymd.append(l[i + 4].parse::<i32>()?, &l[i + 4], None)?;
                             i += 2;
                         }
 
                         i += 2;
-                    } else if i + 4 < len_l && l[i + 1] == l[i + 3] && l[i + 3] == " "
+                    } else if i + 4 < len_l
+                        && l[i + 1] == l[i + 3]
+                        && l[i + 3] == " "
                         && self.info.pertain_index(&l[i + 2])
                     {
                         // Jan of 01
@@ -785,7 +828,7 @@ impl Parser {
                     } else {
                         "+".to_owned()
                     };
-                    l[i+1] = item;
+                    l[i + 1] = item;
 
                     res.tzoffset = None;
 
@@ -803,17 +846,17 @@ impl Parser {
                 // TODO: check that l[i + 1] is integer?
                 if len_li == 4 {
                     // -0300
-                    hour_offset = Some(l[i + 1][..2].parse::<i32>().unwrap());
-                    min_offset = Some(l[i + 1][2..4].parse::<i32>().unwrap());
+                    hour_offset = Some(l[i + 1][..2].parse::<i32>()?);
+                    min_offset = Some(l[i + 1][2..4].parse::<i32>()?);
                 } else if i + 2 < len_l && l[i + 2] == ":" {
                     // -03:00
-                    hour_offset = Some(l[i + 1].parse::<i32>().unwrap());
-                    min_offset = Some(l[i + 3].parse::<i32>().unwrap());
+                    hour_offset = Some(l[i + 1].parse::<i32>()?);
+                    min_offset = Some(l[i + 3].parse::<i32>()?);
                     i += 2;
                 } else if len_li <= 2 {
                     // -[0]3
                     let range_len = min(l[i + 1].len(), 2);
-                    hour_offset = Some(l[i + 1][..range_len].parse::<i32>().unwrap());
+                    hour_offset = Some(l[i + 1][..range_len].parse::<i32>()?);
                     min_offset = Some(0);
                 }
 
@@ -821,8 +864,11 @@ impl Parser {
                     Some(signal * (hour_offset.unwrap() * 3600 + min_offset.unwrap() * 60));
 
                 let tzname = res.tzname.clone();
-                if i + 5 < len_l && self.info.jump_index(&l[i + 2]) && l[i + 3] == "("
-                    && l[i + 5] == ")" && 3 <= l[i + 4].len()
+                if i + 5 < len_l
+                    && self.info.jump_index(&l[i + 2])
+                    && l[i + 3] == "("
+                    && l[i + 5] == ")"
+                    && 3 <= l[i + 4].len()
                     && self.could_be_tzname(res.hour, &tzname, None, &l[i + 4])
                 {
                     // (GMT)
@@ -868,10 +914,14 @@ impl Parser {
             .chars()
             .all(|c| 65u8 as char <= c && c <= 90u8 as char);
 
-        hour.is_some() && tzname.is_none() && tzoffset.is_none() && token.len() <= 5
-            && all_ascii_upper
+        hour.is_some()
+            && tzname.is_none()
+            && tzoffset.is_none()
+            && token.len() <= 5
+            && (all_ascii_upper || self.info.utczone.contains_key(token))
     }
 
+    #[allow(clippy::unnecessary_unwrap)]
     fn ampm_valid(&self, hour: Option<i32>, ampm: Option<bool>, fuzzy: bool) -> ParseResult<bool> {
         let mut val_is_ampm = !(fuzzy && ampm.is_some());
 
@@ -892,13 +942,16 @@ impl Parser {
         Ok(val_is_ampm)
     }
 
-    fn build_naive(&self, res: &ParsingResult, default: &NaiveDateTime) -> ParseResult<NaiveDateTime> {
+    fn build_naive(
+        &self,
+        res: &ParsingResult,
+        default: &NaiveDateTime,
+    ) -> ParseResult<NaiveDateTime> {
         let y = res.year.unwrap_or_else(|| default.year());
         let m = res.month.unwrap_or_else(|| default.month() as i32) as u32;
 
         let d_offset = if res.weekday.is_some() && res.day.is_none() {
-            // TODO: Unwrap not justified
-            let dow = day_of_week(y as u32, m, default.day()).unwrap();
+            let dow = day_of_week(y as u32, m, default.day())?;
 
             // UNWRAP: We've already check res.weekday() is some
             let actual_weekday = (res.weekday.unwrap() + 1) % 7;
@@ -909,32 +962,38 @@ impl Parser {
         };
 
         // TODO: Change month/day to u32
-        let d = NaiveDate::from_ymd(
+        let d = NaiveDate::from_ymd_opt(
             y,
             m,
-            min(res.day.unwrap_or(default.day() as i32) as u32, days_in_month(y, m as i32)?)
-        );
+            min(
+                res.day.unwrap_or(default.day() as i32) as u32,
+                days_in_month(y, m as i32)?,
+            ),
+        )
+        .ok_or_else(|| ParseError::ImpossibleTimestamp("Invalid date range given"))?;
 
         let d = d + d_offset;
 
         let hour = res.hour.unwrap_or(default.hour() as i32) as u32;
         let minute = res.minute.unwrap_or(default.minute() as i32) as u32;
         let second = res.second.unwrap_or(default.second() as i32) as u32;
-        let microsecond = res.microsecond
+        let microsecond = res
+            .microsecond
             .unwrap_or(default.timestamp_subsec_micros() as i32) as u32;
-        let t = NaiveTime::from_hms_micro_opt(hour, minute, second, microsecond).ok_or_else(|| {
-            if hour >= 24 {
-                ParseError::ImpossibleTimestamp("Invalid hour")
-            } else if minute >= 60 {
-                ParseError::ImpossibleTimestamp("Invalid minute")
-            } else if second >= 60 {
-                ParseError::ImpossibleTimestamp("Invalid second")
-            } else if microsecond >= 2_000_000 {
-                ParseError::ImpossibleTimestamp("Invalid microsecond")
-            } else {
-                unreachable!();
-            }
-        })?;
+        let t =
+            NaiveTime::from_hms_micro_opt(hour, minute, second, microsecond).ok_or_else(|| {
+                if hour >= 24 {
+                    ParseError::ImpossibleTimestamp("Invalid hour")
+                } else if minute >= 60 {
+                    ParseError::ImpossibleTimestamp("Invalid minute")
+                } else if second >= 60 {
+                    ParseError::ImpossibleTimestamp("Invalid second")
+                } else if microsecond >= 2_000_000 {
+                    ParseError::ImpossibleTimestamp("Invalid microsecond")
+                } else {
+                    unreachable!();
+                }
+            })?;
 
         Ok(NaiveDateTime::new(d, t))
     }
@@ -945,28 +1004,28 @@ impl Parser {
         res: &ParsingResult,
         tzinfos: &HashMap<String, i32>,
     ) -> ParseResult<Option<FixedOffset>> {
-        // TODO: Actual timezone support
         if let Some(offset) = res.tzoffset {
-            println!("offset={}", offset);
             Ok(Some(FixedOffset::east(offset)))
         } else if res.tzoffset == None
-            && (res.tzname == Some(" ".to_owned()) || res.tzname == Some(".".to_owned())
-                || res.tzname == Some("-".to_owned()) || res.tzname == None)
+            && (res.tzname == Some(" ".to_owned())
+                || res.tzname == Some(".".to_owned())
+                || res.tzname == Some("-".to_owned())
+                || res.tzname == None)
         {
             Ok(None)
         } else if res.tzname.is_some() && tzinfos.contains_key(res.tzname.as_ref().unwrap()) {
             Ok(Some(FixedOffset::east(
                 *tzinfos.get(res.tzname.as_ref().unwrap()).unwrap(),
             )))
-        } else if res.tzname.is_some() {
-            // TODO: Dateutil issues a warning/deprecation notice here. Should we force the issue?
-            println!("tzname {} identified but not understood. Ignoring for the time being, but behavior is subject to change.", res.tzname.as_ref().unwrap());
+        } else if let Some(tzname) = res.tzname.as_ref() {
+            println!("tzname {} identified but not understood.", tzname);
             Ok(None)
         } else {
             Err(ParseError::TimezoneUnsupported)
         }
     }
 
+    #[allow(clippy::unnecessary_unwrap)]
     fn parse_numeric_token(
         &self,
         tokens: &[String],
@@ -985,7 +1044,9 @@ impl Parser {
 
         // TODO: I miss the `x in y` syntax
         // TODO: Decompose this logic a bit
-        if ymd.len() == 3 && (len_li == 2 || len_li == 4) && res.hour.is_none()
+        if ymd.len() == 3
+            && (len_li == 2 || len_li == 4)
+            && res.hour.is_none()
             && (idx + 1 >= len_l
                 || (tokens[idx + 1] != ":" && info.hms_index(&tokens[idx + 1]).is_none()))
         {
@@ -1001,9 +1062,9 @@ impl Parser {
             let s = &tokens[idx];
 
             if ymd.len() == 0 && tokens[idx].find('.') == None {
-                ymd.append(s[0..2].parse::<i32>().unwrap(), &s[0..2], None)?;
-                ymd.append(s[2..4].parse::<i32>().unwrap(), &s[2..4], None)?;
-                ymd.append(s[4..6].parse::<i32>().unwrap(), &s[4..6], None)?;
+                ymd.append(s[0..2].parse::<i32>()?, &s[0..2], None)?;
+                ymd.append(s[2..4].parse::<i32>()?, &s[2..4], None)?;
+                ymd.append(s[4..6].parse::<i32>()?, &s[4..6], None)?;
             } else {
                 // 19990101T235959[.59]
                 res.hour = s[0..2].parse::<i32>().ok();
@@ -1016,9 +1077,9 @@ impl Parser {
         } else if vec![8, 12, 14].contains(&len_li) {
             // YYMMDD
             let s = &tokens[idx];
-            ymd.append(s[..4].parse::<i32>().unwrap(), &s[..4], Some(YMDLabel::Year))?;
-            ymd.append(s[4..6].parse::<i32>().unwrap(), &s[4..6], None)?;
-            ymd.append(s[6..8].parse::<i32>().unwrap(), &s[6..8], None)?;
+            ymd.append(s[..4].parse::<i32>()?, &s[..4], Some(YMDLabel::Year))?;
+            ymd.append(s[4..6].parse::<i32>()?, &s[4..6], None)?;
+            ymd.append(s[6..8].parse::<i32>()?, &s[6..8], None)?;
 
             if len_li > 8 {
                 res.hour = Some(s[8..10].parse::<i32>()?);
@@ -1060,7 +1121,7 @@ impl Parser {
         {
             // TODO: There's got to be a better way of handling the condition above
             let sep = &tokens[idx + 1];
-            ymd.append(value_repr.parse::<i32>().unwrap(), &value_repr, None)?;
+            ymd.append(value_repr.parse::<i32>()?, &value_repr, None)?;
 
             if idx + 2 < len_l && !info.jump_index(&tokens[idx + 2]) {
                 if let Ok(val) = tokens[idx + 2].parse::<i32>() {
@@ -1073,10 +1134,10 @@ impl Parser {
                     if let Some(value) = info.month_index(&tokens[idx + 4]) {
                         ymd.append(value as i32, &tokens[idx + 4], Some(YMDLabel::Month))?;
                     } else if let Ok(val) = tokens[idx + 4].parse::<i32>() {
-                            ymd.append(val, &tokens[idx + 4], None)?;
-                        } else {
-                            return Err(ParseError::UnrecognizedFormat);
-                        }
+                        ymd.append(val, &tokens[idx + 4], None)?;
+                    } else {
+                        return Err(ParseError::UnrecognizedFormat);
+                    }
 
                     idx += 2;
                 }
@@ -1154,7 +1215,7 @@ impl Parser {
             len_l - 2
         } else if idx > 1 {
             idx - 2
-        } else if len_l == 0{
+        } else if len_l == 0 {
             panic!("Attempting to find_hms_index() wih no tokens.");
         } else {
             0
@@ -1162,13 +1223,18 @@ impl Parser {
 
         if idx + 1 < len_l && info.hms_index(&tokens[idx + 1]).is_some() {
             hms_idx = Some(idx + 1)
-        } else if allow_jump && idx + 2 < len_l && tokens[idx + 1] == " "
+        } else if allow_jump
+            && idx + 2 < len_l
+            && tokens[idx + 1] == " "
             && info.hms_index(&tokens[idx + 2]).is_some()
         {
             hms_idx = Some(idx + 2)
         } else if idx > 0 && info.hms_index(&tokens[idx - 1]).is_some() {
             hms_idx = Some(idx - 1)
-        } else if len_l > 0 && idx > 0 && idx == len_l - 1 && tokens[idx - 1] == " "
+        } else if len_l > 0
+            && idx > 0
+            && idx == len_l - 1
+            && tokens[idx - 1] == " "
             && info.hms_index(&tokens[idx_minus_two]).is_some()
         {
             hms_idx = Some(idx - 2)
@@ -1177,6 +1243,7 @@ impl Parser {
         hms_idx
     }
 
+    #[allow(clippy::unnecessary_unwrap)]
     fn parse_hms(
         &self,
         idx: usize,
@@ -1236,7 +1303,6 @@ impl Parser {
         (minute, second)
     }
 
-    #[cfg_attr(feature = "cargo-clippy", allow(needless_pass_by_value))] // Need Vec type because of mutability in the function that calls us
     fn recombine_skipped(&self, skipped_idxs: Vec<usize>, tokens: Vec<String>) -> Vec<String> {
         let mut skipped_tokens: Vec<String> = vec![];
 
@@ -1273,11 +1339,11 @@ fn ljust(s: &str, chars: usize, replace: char) -> String {
 /// Main entry point for using `dtparse`. The parse function is responsible for
 /// taking in a string representing some time value, and turning it into
 /// a timestamp with optional timezone information if it can be identified.
-/// 
+///
 /// The default implementation assumes English values for names of months,
 /// days of the week, etc. It is equivalent to Python's `dateutil.parser.parse()`
 pub fn parse(timestr: &str) -> ParseResult<(NaiveDateTime, Option<FixedOffset>)> {
-    let res = Parser::default().parse(
+    let res = DEFAULT_PARSER.parse(
         timestr,
         None,
         None,

src/tests/fuzzing.rs

@@ -7,18 +7,56 @@ use Parser;
 
 #[test]
 fn test_fuzz() {
-
-    assert_eq!(parse("\x2D\x38\x31\x39\x34\x38\x34"), Err(ParseError::ImpossibleTimestamp("Invalid month")));
+    assert_eq!(
+        parse("\x2D\x38\x31\x39\x34\x38\x34"),
+        Err(ParseError::ImpossibleTimestamp("Invalid month"))
+    );
 
     // Garbage in the third delimited field
-    assert_eq!(parse("2..\x00\x000d\x00+\x010d\x01\x00\x00\x00+"),
-               Err(ParseError::UnrecognizedFormat));
-    // OverflowError: Python int too large to convert to C long
-    // assert_eq!(parse("8888884444444888444444444881"), Err(ParseError::AmPmWithoutHour));
-    let default = NaiveDate::from_ymd(2016, 6, 29).and_hms(0, 0, 0);
-    let mut p = Parser::default();
-    let res = p.parse("\x0D\x31", None, None, false, false, Some(&default), false, &HashMap::new()).unwrap();
-    assert_eq!(res.0, default);
+    assert_eq!(
+        parse("2..\x00\x000d\x00+\x010d\x01\x00\x00\x00+"),
+        Err(ParseError::UnrecognizedFormat)
+    );
 
-    assert_eq!(parse("\x2D\x2D\x32\x31\x38\x6D"), Err(ParseError::ImpossibleTimestamp("Invalid minute")));
+    let default = NaiveDate::from_ymd(2016, 6, 29).and_hms(0, 0, 0);
+    let p = Parser::default();
+    let res = p.parse(
+        "\x0D\x31",
+        None,
+        None,
+        false,
+        false,
+        Some(&default),
+        false,
+        &HashMap::new(),
+    );
+    assert_eq!(res, Err(ParseError::NoDate));
+
+    assert_eq!(
+        parse("\x2D\x2D\x32\x31\x38\x6D"),
+        Err(ParseError::ImpossibleTimestamp("Invalid minute"))
+    );
+}
+
+#[test]
+fn large_int() {
+    let parse_result = parse("1412409095009.jpg");
+    assert!(parse_result.is_err());
+}
+
+#[test]
+fn another_large_int() {
+    let parse_result = parse("1412409095009");
+    assert!(parse_result.is_err());
+}
+
+#[test]
+fn an_even_larger_int() {
+    let parse_result = parse("1566997680962280");
+    assert!(parse_result.is_err());
+}
+
+#[test]
+fn empty_string() {
+    assert_eq!(parse(""), Err(ParseError::NoDate))
 }

src/tests/pycompat_tokenizer.rs

@@ -1,4 +1,3 @@
-
 //! This code has been generated by running the `build_pycompat_tokenizer.py` script
 //! in the repository root. Please do not edit it, as your edits will be destroyed
 //! upon re-running code generation.
@@ -12,7 +11,9 @@ fn tokenize_assert(test_str: &str, comparison: Vec<&str>) {
 
 #[test]
 fn test_tokenize0() {
-    let comp = vec!["Thu", " ", "Sep", " ", "25", " ", "10", ":", "36", ":", "28"];
+    let comp = vec![
+        "Thu", " ", "Sep", " ", "25", " ", "10", ":", "36", ":", "28",
+    ];
     tokenize_assert("Thu Sep 25 10:36:28", comp);
 }
 
@@ -294,7 +295,9 @@ fn test_tokenize46() {
 
 #[test]
 fn test_tokenize47() {
-    let comp = vec!["Thu", " ", "Sep", " ", "25", " ", "10", ":", "36", ":", "28", " ", "2003"];
+    let comp = vec![
+        "Thu", " ", "Sep", " ", "25", " ", "10", ":", "36", ":", "28", " ", "2003",
+    ];
     tokenize_assert("Thu Sep 25 10:36:28 2003", comp);
 }
 
@@ -306,7 +309,9 @@ fn test_tokenize48() {
 
 #[test]
 fn test_tokenize49() {
-    let comp = vec!["2003", "-", "09", "-", "25", "T", "10", ":", "49", ":", "41"];
+    let comp = vec![
+        "2003", "-", "09", "-", "25", "T", "10", ":", "49", ":", "41",
+    ];
     tokenize_assert("2003-09-25T10:49:41", comp);
 }
 
@@ -354,7 +359,9 @@ fn test_tokenize56() {
 
 #[test]
 fn test_tokenize57() {
-    let comp = vec!["2003", "-", "09", "-", "25", " ", "10", ":", "49", ":", "41.502"];
+    let comp = vec![
+        "2003", "-", "09", "-", "25", " ", "10", ":", "49", ":", "41.502",
+    ];
     tokenize_assert("2003-09-25 10:49:41,502", comp);
 }
 
@@ -510,7 +517,10 @@ fn test_tokenize82() {
 
 #[test]
 fn test_tokenize83() {
-    let comp = vec![" ", " ", "July", " ", " ", " ", "4", " ", ",", " ", " ", "1976", " ", " ", " ", "12", ":", "01", ":", "02", " ", " ", " ", "am", " ", " "];
+    let comp = vec![
+        " ", " ", "July", " ", " ", " ", "4", " ", ",", " ", " ", "1976", " ", " ", " ", "12", ":",
+        "01", ":", "02", " ", " ", " ", "am", " ", " ",
+    ];
     tokenize_assert("  July   4 ,  1976   12:01:02   am  ", comp);
 }
 
@@ -522,7 +532,9 @@ fn test_tokenize84() {
 
 #[test]
 fn test_tokenize85() {
-    let comp = vec!["1996", ".", "July", ".", "10", " ", "AD", " ", "12", ":", "08", " ", "PM"];
+    let comp = vec![
+        "1996", ".", "July", ".", "10", " ", "AD", " ", "12", ":", "08", " ", "PM",
+    ];
     tokenize_assert("1996.July.10 AD 12:08 PM", comp);
 }
 
@@ -558,25 +570,33 @@ fn test_tokenize90() {
 
 #[test]
 fn test_tokenize91() {
-    let comp = vec!["0", ":", "01", ":", "02", " ", "on", " ", "July", " ", "4", ",", " ", "1976"];
+    let comp = vec![
+        "0", ":", "01", ":", "02", " ", "on", " ", "July", " ", "4", ",", " ", "1976",
+    ];
     tokenize_assert("0:01:02 on July 4, 1976", comp);
 }
 
 #[test]
 fn test_tokenize92() {
-    let comp = vec!["0", ":", "01", ":", "02", " ", "on", " ", "July", " ", "4", ",", " ", "1976"];
+    let comp = vec![
+        "0", ":", "01", ":", "02", " ", "on", " ", "July", " ", "4", ",", " ", "1976",
+    ];
     tokenize_assert("0:01:02 on July 4, 1976", comp);
 }
 
 #[test]
 fn test_tokenize93() {
-    let comp = vec!["July", " ", "4", ",", " ", "1976", " ", "12", ":", "01", ":", "02", " ", "am"];
+    let comp = vec![
+        "July", " ", "4", ",", " ", "1976", " ", "12", ":", "01", ":", "02", " ", "am",
+    ];
     tokenize_assert("July 4, 1976 12:01:02 am", comp);
 }
 
 #[test]
 fn test_tokenize94() {
-    let comp = vec!["Mon", " ", "Jan", " ", " ", "2", " ", "04", ":", "24", ":", "27", " ", "1995"];
+    let comp = vec![
+        "Mon", " ", "Jan", " ", " ", "2", " ", "04", ":", "24", ":", "27", " ", "1995",
+    ];
     tokenize_assert("Mon Jan  2 04:24:27 1995", comp);
 }
 
@@ -588,7 +608,9 @@ fn test_tokenize95() {
 
 #[test]
 fn test_tokenize96() {
-    let comp = vec!["Jan", " ", "1", " ", "1999", " ", "11", ":", "23", ":", "34.578"];
+    let comp = vec![
+        "Jan", " ", "1", " ", "1999", " ", "11", ":", "23", ":", "34.578",
+    ];
     tokenize_assert("Jan 1 1999 11:23:34.578", comp);
 }
 
@@ -618,13 +640,17 @@ fn test_tokenize100() {
 
 #[test]
 fn test_tokenize101() {
-    let comp = vec!["0099", "-", "01", "-", "01", "T", "00", ":", "00", ":", "00"];
+    let comp = vec![
+        "0099", "-", "01", "-", "01", "T", "00", ":", "00", ":", "00",
+    ];
     tokenize_assert("0099-01-01T00:00:00", comp);
 }
 
 #[test]
 fn test_tokenize102() {
-    let comp = vec!["0031", "-", "01", "-", "01", "T", "00", ":", "00", ":", "00"];
+    let comp = vec![
+        "0031", "-", "01", "-", "01", "T", "00", ":", "00", ":", "00",
+    ];
     tokenize_assert("0031-01-01T00:00:00", comp);
 }
 
@@ -666,31 +692,42 @@ fn test_tokenize108() {
 
 #[test]
 fn test_tokenize109() {
-    let comp = vec!["Thu", " ", "Sep", " ", "25", " ", "10", ":", "36", ":", "28", " ", "BRST", " ", "2003"];
+    let comp = vec![
+        "Thu", " ", "Sep", " ", "25", " ", "10", ":", "36", ":", "28", " ", "BRST", " ", "2003",
+    ];
     tokenize_assert("Thu Sep 25 10:36:28 BRST 2003", comp);
 }
 
 #[test]
 fn test_tokenize110() {
-    let comp = vec!["2003", " ", "10", ":", "36", ":", "28", " ", "BRST", " ", "25", " ", "Sep", " ", "Thu"];
+    let comp = vec![
+        "2003", " ", "10", ":", "36", ":", "28", " ", "BRST", " ", "25", " ", "Sep", " ", "Thu",
+    ];
     tokenize_assert("2003 10:36:28 BRST 25 Sep Thu", comp);
 }
 
 #[test]
 fn test_tokenize111() {
-    let comp = vec!["Thu", ",", " ", "25", " ", "Sep", " ", "2003", " ", "10", ":", "49", ":", "41", " ", "-", "0300"];
+    let comp = vec![
+        "Thu", ",", " ", "25", " ", "Sep", " ", "2003", " ", "10", ":", "49", ":", "41", " ", "-",
+        "0300",
+    ];
     tokenize_assert("Thu, 25 Sep 2003 10:49:41 -0300", comp);
 }
 
 #[test]
 fn test_tokenize112() {
-    let comp = vec!["2003", "-", "09", "-", "25", "T", "10", ":", "49", ":", "41.5", "-", "03", ":", "00"];
+    let comp = vec![
+        "2003", "-", "09", "-", "25", "T", "10", ":", "49", ":", "41.5", "-", "03", ":", "00",
+    ];
     tokenize_assert("2003-09-25T10:49:41.5-03:00", comp);
 }
 
 #[test]
 fn test_tokenize113() {
-    let comp = vec!["2003", "-", "09", "-", "25", "T", "10", ":", "49", ":", "41", "-", "03", ":", "00"];
+    let comp = vec![
+        "2003", "-", "09", "-", "25", "T", "10", ":", "49", ":", "41", "-", "03", ":", "00",
+    ];
     tokenize_assert("2003-09-25T10:49:41-03:00", comp);
 }
 
@@ -708,19 +745,27 @@ fn test_tokenize115() {
 
 #[test]
 fn test_tokenize116() {
-    let comp = vec!["2018", "-", "08", "-", "10", " ", "10", ":", "00", ":", "00", " ", "UTC", "+", "3"];
+    let comp = vec![
+        "2018", "-", "08", "-", "10", " ", "10", ":", "00", ":", "00", " ", "UTC", "+", "3",
+    ];
     tokenize_assert("2018-08-10 10:00:00 UTC+3", comp);
 }
 
 #[test]
 fn test_tokenize117() {
-    let comp = vec!["2018", "-", "08", "-", "10", " ", "03", ":", "36", ":", "47", " ", "PM", " ", "GMT", "-", "4"];
+    let comp = vec![
+        "2018", "-", "08", "-", "10", " ", "03", ":", "36", ":", "47", " ", "PM", " ", "GMT", "-",
+        "4",
+    ];
     tokenize_assert("2018-08-10 03:36:47 PM GMT-4", comp);
 }
 
 #[test]
 fn test_tokenize118() {
-    let comp = vec!["2018", "-", "08", "-", "10", " ", "04", ":", "15", ":", "00", " ", "AM", " ", "Z", "-", "02", ":", "00"];
+    let comp = vec![
+        "2018", "-", "08", "-", "10", " ", "04", ":", "15", ":", "00", " ", "AM", " ", "Z", "-",
+        "02", ":", "00",
+    ];
     tokenize_assert("2018-08-10 04:15:00 AM Z-02:00", comp);
 }
 
@@ -828,91 +873,213 @@ fn test_tokenize135() {
 
 #[test]
 fn test_tokenize136() {
-    let comp = vec!["Thu", " ", "Sep", " ", "25", " ", "10", ":", "36", ":", "28", " ", "BRST", " ", "2003"];
+    let comp = vec![
+        "Thu", " ", "Sep", " ", "25", " ", "10", ":", "36", ":", "28", " ", "BRST", " ", "2003",
+    ];
     tokenize_assert("Thu Sep 25 10:36:28 BRST 2003", comp);
 }
 
 #[test]
 fn test_tokenize137() {
-    let comp = vec!["1996", ".", "07", ".", "10", " ", "AD", " ", "at", " ", "15", ":", "08", ":", "56", " ", "PDT"];
+    let comp = vec![
+        "1996", ".", "07", ".", "10", " ", "AD", " ", "at", " ", "15", ":", "08", ":", "56", " ",
+        "PDT",
+    ];
     tokenize_assert("1996.07.10 AD at 15:08:56 PDT", comp);
 }
 
 #[test]
 fn test_tokenize138() {
-    let comp = vec!["Tuesday", ",", " ", "April", " ", "12", ",", " ", "1952", " ", "AD", " ", "3", ":", "30", ":", "42", "pm", " ", "PST"];
+    let comp = vec![
+        "Tuesday", ",", " ", "April", " ", "12", ",", " ", "1952", " ", "AD", " ", "3", ":", "30",
+        ":", "42", "pm", " ", "PST",
+    ];
     tokenize_assert("Tuesday, April 12, 1952 AD 3:30:42pm PST", comp);
 }
 
 #[test]
 fn test_tokenize139() {
-    let comp = vec!["November", " ", "5", ",", " ", "1994", ",", " ", "8", ":", "15", ":", "30", " ", "am", " ", "EST"];
+    let comp = vec![
+        "November", " ", "5", ",", " ", "1994", ",", " ", "8", ":", "15", ":", "30", " ", "am",
+        " ", "EST",
+    ];
     tokenize_assert("November 5, 1994, 8:15:30 am EST", comp);
 }
 
 #[test]
 fn test_tokenize140() {
-    let comp = vec!["1994", "-", "11", "-", "05", "T", "08", ":", "15", ":", "30", "-", "05", ":", "00"];
+    let comp = vec![
+        "1994", "-", "11", "-", "05", "T", "08", ":", "15", ":", "30", "-", "05", ":", "00",
+    ];
     tokenize_assert("1994-11-05T08:15:30-05:00", comp);
 }
 
 #[test]
 fn test_tokenize141() {
-    let comp = vec!["1994", "-", "11", "-", "05", "T", "08", ":", "15", ":", "30", "Z"];
+    let comp = vec![
+        "1994", "-", "11", "-", "05", "T", "08", ":", "15", ":", "30", "Z",
+    ];
     tokenize_assert("1994-11-05T08:15:30Z", comp);
 }
 
 #[test]
 fn test_tokenize142() {
-    let comp = vec!["1976", "-", "07", "-", "04", "T", "00", ":", "01", ":", "02", "Z"];
+    let comp = vec![
+        "1976", "-", "07", "-", "04", "T", "00", ":", "01", ":", "02", "Z",
+    ];
     tokenize_assert("1976-07-04T00:01:02Z", comp);
 }
 
 #[test]
 fn test_tokenize143() {
-    let comp = vec!["Tue", " ", "Apr", " ", "4", " ", "00", ":", "22", ":", "12", " ", "PDT", " ", "1995"];
+    let comp = vec![
+        "Tue", " ", "Apr", " ", "4", " ", "00", ":", "22", ":", "12", " ", "PDT", " ", "1995",
+    ];
     tokenize_assert("Tue Apr 4 00:22:12 PDT 1995", comp);
 }
 
 #[test]
 fn test_tokenize144() {
-    let comp = vec!["Today", " ", "is", " ", "25", " ", "of", " ", "September", " ", "of", " ", "2003", ",", " ", "exactly", " ", "at", " ", "10", ":", "49", ":", "41", " ", "with", " ", "timezone", " ", "-", "03", ":", "00", "."];
-    tokenize_assert("Today is 25 of September of 2003, exactly at 10:49:41 with timezone -03:00.", comp);
+    let comp = vec![
+        "Today",
+        " ",
+        "is",
+        " ",
+        "25",
+        " ",
+        "of",
+        " ",
+        "September",
+        " ",
+        "of",
+        " ",
+        "2003",
+        ",",
+        " ",
+        "exactly",
+        " ",
+        "at",
+        " ",
+        "10",
+        ":",
+        "49",
+        ":",
+        "41",
+        " ",
+        "with",
+        " ",
+        "timezone",
+        " ",
+        "-",
+        "03",
+        ":",
+        "00",
+        ".",
+    ];
+    tokenize_assert(
+        "Today is 25 of September of 2003, exactly at 10:49:41 with timezone -03:00.",
+        comp,
+    );
 }
 
 #[test]
 fn test_tokenize145() {
-    let comp = vec!["Today", " ", "is", " ", "25", " ", "of", " ", "September", " ", "of", " ", "2003", ",", " ", "exactly", " ", "at", " ", "10", ":", "49", ":", "41", " ", "with", " ", "timezone", " ", "-", "03", ":", "00", "."];
-    tokenize_assert("Today is 25 of September of 2003, exactly at 10:49:41 with timezone -03:00.", comp);
+    let comp = vec![
+        "Today",
+        " ",
+        "is",
+        " ",
+        "25",
+        " ",
+        "of",
+        " ",
+        "September",
+        " ",
+        "of",
+        " ",
+        "2003",
+        ",",
+        " ",
+        "exactly",
+        " ",
+        "at",
+        " ",
+        "10",
+        ":",
+        "49",
+        ":",
+        "41",
+        " ",
+        "with",
+        " ",
+        "timezone",
+        " ",
+        "-",
+        "03",
+        ":",
+        "00",
+        ".",
+    ];
+    tokenize_assert(
+        "Today is 25 of September of 2003, exactly at 10:49:41 with timezone -03:00.",
+        comp,
+    );
 }
 
 #[test]
 fn test_tokenize146() {
-    let comp = vec!["I", " ", "have", " ", "a", " ", "meeting", " ", "on", " ", "March", " ", "1", ",", " ", "1974"];
+    let comp = vec![
+        "I", " ", "have", " ", "a", " ", "meeting", " ", "on", " ", "March", " ", "1", ",", " ",
+        "1974",
+    ];
     tokenize_assert("I have a meeting on March 1, 1974", comp);
 }
 
 #[test]
 fn test_tokenize147() {
-    let comp = vec!["On", " ", "June", " ", "8", "th", ",", " ", "2020", ",", " ", "I", " ", "am", " ", "going", " ", "to", " ", "be", " ", "the", " ", "first", " ", "man", " ", "on", " ", "Mars"];
-    tokenize_assert("On June 8th, 2020, I am going to be the first man on Mars", comp);
+    let comp = vec![
+        "On", " ", "June", " ", "8", "th", ",", " ", "2020", ",", " ", "I", " ", "am", " ",
+        "going", " ", "to", " ", "be", " ", "the", " ", "first", " ", "man", " ", "on", " ",
+        "Mars",
+    ];
+    tokenize_assert(
+        "On June 8th, 2020, I am going to be the first man on Mars",
+        comp,
+    );
 }
 
 #[test]
 fn test_tokenize148() {
-    let comp = vec!["Meet", " ", "me", " ", "at", " ", "the", " ", "AM", "/", "PM", " ", "on", " ", "Sunset", " ", "at", " ", "3", ":", "00", " ", "AM", " ", "on", " ", "December", " ", "3", "rd", ",", " ", "2003"];
-    tokenize_assert("Meet me at the AM/PM on Sunset at 3:00 AM on December 3rd, 2003", comp);
+    let comp = vec![
+        "Meet", " ", "me", " ", "at", " ", "the", " ", "AM", "/", "PM", " ", "on", " ", "Sunset",
+        " ", "at", " ", "3", ":", "00", " ", "AM", " ", "on", " ", "December", " ", "3", "rd", ",",
+        " ", "2003",
+    ];
+    tokenize_assert(
+        "Meet me at the AM/PM on Sunset at 3:00 AM on December 3rd, 2003",
+        comp,
+    );
 }
 
 #[test]
 fn test_tokenize149() {
-    let comp = vec!["Meet", " ", "me", " ", "at", " ", "3", ":", "00", " ", "AM", " ", "on", " ", "December", " ", "3", "rd", ",", " ", "2003", " ", "at", " ", "the", " ", "AM", "/", "PM", " ", "on", " ", "Sunset"];
-    tokenize_assert("Meet me at 3:00 AM on December 3rd, 2003 at the AM/PM on Sunset", comp);
+    let comp = vec![
+        "Meet", " ", "me", " ", "at", " ", "3", ":", "00", " ", "AM", " ", "on", " ", "December",
+        " ", "3", "rd", ",", " ", "2003", " ", "at", " ", "the", " ", "AM", "/", "PM", " ", "on",
+        " ", "Sunset",
+    ];
+    tokenize_assert(
+        "Meet me at 3:00 AM on December 3rd, 2003 at the AM/PM on Sunset",
+        comp,
+    );
 }
 
 #[test]
 fn test_tokenize150() {
-    let comp = vec!["Jan", " ", "29", ",", " ", "1945", " ", "14", ":", "45", " ", "AM", " ", "I", " ", "going", " ", "to", " ", "see", " ", "you", " ", "there", "?"];
+    let comp = vec![
+        "Jan", " ", "29", ",", " ", "1945", " ", "14", ":", "45", " ", "AM", " ", "I", " ",
+        "going", " ", "to", " ", "see", " ", "you", " ", "there", "?",
+    ];
     tokenize_assert("Jan 29, 1945 14:45 AM I going to see you there?", comp);
 }
 

src/tokenize.rs

@@ -14,7 +14,6 @@ pub(crate) enum ParseState {
 }
 
 impl Tokenizer {
-
     pub(crate) fn new(parse_string: &str) -> Self {
         Tokenizer {
             token_stack: vec![],
@@ -92,7 +91,7 @@ impl Iterator for Tokenizer {
                     } else {
                         break;
                     }
-                },
+                }
                 ParseState::Alpha => {
                     seenletters = true;
                     if self.isword(nextchar) {
@@ -105,19 +104,21 @@ impl Iterator for Tokenizer {
                         self.parse_string.push(nextchar);
                         break;
                     }
-                },
+                }
                 ParseState::Numeric => {
                     if self.isnum(nextchar) {
                         // UNWRAP: Because we're in non-empty parse state, we're guaranteed to have a token
                         token.as_mut().unwrap().push(nextchar);
-                    } else if nextchar == '.' || (nextchar == ',' && token.as_ref().unwrap().len() >= 2) {
+                    } else if nextchar == '.'
+                        || (nextchar == ',' && token.as_ref().unwrap().len() >= 2)
+                    {
                         token.as_mut().unwrap().push(nextchar);
                         state = ParseState::NumericDecimal;
                     } else {
                         self.parse_string.push(nextchar);
                         break;
                     }
-                },
+                }
                 ParseState::AlphaDecimal => {
                     seenletters = true;
                     if nextchar == '.' || self.isword(nextchar) {
@@ -130,7 +131,7 @@ impl Iterator for Tokenizer {
                         self.parse_string.push(nextchar);
                         break;
                     }
-                },
+                }
                 ParseState::NumericDecimal => {
                     if nextchar == '.' || self.isnum(nextchar) {
                         // UNWRAP: Because we're in non-empty parse state, we're guaranteed to have a token
@@ -150,20 +151,25 @@ impl Iterator for Tokenizer {
         // We do something slightly different to express the same logic
         if state == ParseState::AlphaDecimal || state == ParseState::NumericDecimal {
             // UNWRAP: The state check guarantees that we have a value
-            let dot_count = token.as_ref().unwrap().chars().filter(|c| *c == '.').count();
+            let dot_count = token
+                .as_ref()
+                .unwrap()
+                .chars()
+                .filter(|c| *c == '.')
+                .count();
             let last_char = token.as_ref().unwrap().chars().last();
             let last_splittable = last_char == Some('.') || last_char == Some(',');
-    
+
             if seenletters || dot_count > 1 || last_splittable {
                 let mut l = self.decimal_split(token.as_ref().unwrap());
                 let remaining = l.split_off(1);
-    
+
                 token = Some(l[0].clone());
                 for t in remaining {
                     self.token_stack.push(t);
                 }
             }
-    
+
             if state == ParseState::NumericDecimal && dot_count == 0 {
                 token = Some(token.unwrap().replace(',', "."));
             }

src/weekday.rs

@@ -1,5 +1,5 @@
-use ParseResult;
 use ParseError;
+use ParseResult;
 
 #[derive(Debug, PartialEq)]
 pub enum DayOfWeek {
@@ -9,11 +9,10 @@ pub enum DayOfWeek {
     Wednesday,
     Thursday,
     Friday,
-    Saturday
+    Saturday,
 }
 
 impl DayOfWeek {
-
     pub fn to_numeral(&self) -> u32 {
         match *self {
             DayOfWeek::Sunday => 0,
@@ -35,7 +34,7 @@ impl DayOfWeek {
             4 => DayOfWeek::Thursday,
             5 => DayOfWeek::Friday,
             6 => DayOfWeek::Saturday,
-            _ => panic!("Unreachable.")
+            _ => panic!("Unreachable."),
         }
     }
 
@@ -59,12 +58,12 @@ pub fn day_of_week(year: u32, month: u32, day: u32) -> ParseResult<DayOfWeek> {
         3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 => {
             let c = year / 100;
             (c, year - 100 * c)
-        },
+        }
         1 | 2 => {
             let c = (year - 1) / 100;
             (c, year - 1 - 100 * c)
-        },
-        _ => return Err(ParseError::ImpossibleTimestamp("Invalid month"))
+        }
+        _ => return Err(ParseError::ImpossibleTimestamp("Invalid month")),
     };
 
     let e = match month {
@@ -75,7 +74,7 @@ pub fn day_of_week(year: u32, month: u32, day: u32) -> ParseResult<DayOfWeek> {
         8 => 1,
         9 | 12 => 4,
         10 => 6,
-        _ => panic!("Unreachable.")
+        _ => panic!("Unreachable."),
     };
 
     // This implementation is Gregorian-only.
@@ -84,7 +83,7 @@ pub fn day_of_week(year: u32, month: u32, day: u32) -> ParseResult<DayOfWeek> {
         1 => 5,
         2 => 3,
         3 => 1,
-        _ => panic!("Unreachable.")
+        _ => panic!("Unreachable."),
     };
 
     match (day + e + f + g + g / 4) % 7 {
@@ -95,7 +94,7 @@ pub fn day_of_week(year: u32, month: u32, day: u32) -> ParseResult<DayOfWeek> {
         4 => Ok(DayOfWeek::Thursday),
         5 => Ok(DayOfWeek::Friday),
         6 => Ok(DayOfWeek::Saturday),
-        _ => panic!("Unreachable.")
+        _ => panic!("Unreachable."),
     }
 }
 
@@ -114,7 +113,6 @@ mod test {
 
     #[test]
     fn weekday_difference() {
-
         assert_eq!(DayOfWeek::Sunday.difference(&DayOfWeek::Sunday), 0);
         assert_eq!(DayOfWeek::Sunday.difference(&DayOfWeek::Monday), 1);
         assert_eq!(DayOfWeek::Sunday.difference(&DayOfWeek::Tuesday), 2);
@@ -129,4 +127,4 @@ mod test {
         assert_eq!(DayOfWeek::Friday.difference(&DayOfWeek::Sunday), 2);
         assert_eq!(DayOfWeek::Saturday.difference(&DayOfWeek::Sunday), 1);
     }
-}
+}