2023-05-14 00:04:47 +00:00
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use crate::units::{NonMetric, NonMetricQuantity};
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enum Expect {
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Number,
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Unit,
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}
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#[derive(Debug, PartialEq)]
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pub enum ParseError {
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NotValidNumber(String),
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UnexpectedUnit(String),
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UnknownUnit(String),
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ExpectedUnit,
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}
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pub fn parse(input: &str) -> Result<Vec<NonMetricQuantity>, ParseError> {
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let mut quantities = Vec::new();
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let mut state = Expect::Number;
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let mut amount = None;
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for token in tokenize(input) {
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match (&state, token) {
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(Expect::Number, Token::Number(number)) => {
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2023-05-28 15:22:49 +00:00
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let number = parse_number(number)?;
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2023-05-14 00:04:47 +00:00
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amount = Some(number);
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state = Expect::Unit;
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}
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(Expect::Number, Token::Unit(unit)) => {
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return Err(ParseError::UnexpectedUnit(unit));
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}
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(Expect::Unit, Token::Number(_)) => {
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unreachable!("token stream can't contain two numbers in a row");
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}
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(Expect::Unit, Token::Unit(unit)) => {
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2023-05-28 15:22:49 +00:00
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let unit = parse_unit(unit)?;
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2023-05-14 00:04:47 +00:00
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let quantity = NonMetricQuantity {
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amount: amount.take().expect("must have read a number to be in this state"),
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unit: unit,
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};
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quantities.push(quantity);
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state = Expect::Number;
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}
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}
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}
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match state {
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2023-05-28 20:44:49 +00:00
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Expect::Number => {}
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2023-05-14 00:04:47 +00:00
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Expect::Unit => {
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return Err(ParseError::ExpectedUnit);
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}
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}
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Ok(quantities)
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}
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2023-05-28 15:22:49 +00:00
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fn parse_number(input: String) -> Result<f64, ParseError> {
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2023-05-28 15:07:28 +00:00
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let no_whitespace: String = input.chars().filter(|c| !c.is_whitespace()).collect();
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2023-05-28 15:22:49 +00:00
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no_whitespace.parse().or_else(|_| Err(ParseError::NotValidNumber(input)))
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2023-05-28 15:07:28 +00:00
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}
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2023-05-28 15:22:49 +00:00
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fn parse_unit(input: String) -> Result<NonMetric, ParseError> {
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match input.as_str() {
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2023-05-14 00:04:47 +00:00
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// Length
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2023-05-28 15:22:49 +00:00
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"inch" => Ok(NonMetric::Inch),
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"inches" => Ok(NonMetric::Inch),
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"in" => Ok(NonMetric::Inch),
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"\"" => Ok(NonMetric::Inch),
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"″" => Ok(NonMetric::Inch),
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"foot" => Ok(NonMetric::Foot),
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"feet" => Ok(NonMetric::Foot),
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"ft" => Ok(NonMetric::Foot),
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"'" => Ok(NonMetric::Foot),
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"′" => Ok(NonMetric::Foot),
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"yard" => Ok(NonMetric::Yard),
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"yards" => Ok(NonMetric::Yard),
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"yd" => Ok(NonMetric::Yard),
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"mile" => Ok(NonMetric::Mile),
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"miles" => Ok(NonMetric::Mile),
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"mi" => Ok(NonMetric::Mile),
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"m" => Ok(NonMetric::Mile),
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2023-05-14 00:04:47 +00:00
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// Weight
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2023-05-28 15:22:49 +00:00
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"ounce" => Ok(NonMetric::Ounce),
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"ounces" => Ok(NonMetric::Ounce),
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"oz" => Ok(NonMetric::Ounce),
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2023-05-14 00:04:47 +00:00
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2023-05-28 15:22:49 +00:00
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"pound" => Ok(NonMetric::Pound),
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"pounds" => Ok(NonMetric::Pound),
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"lb" => Ok(NonMetric::Pound),
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"lbs" => Ok(NonMetric::Pound),
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"#" => Ok(NonMetric::Pound),
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2023-05-14 00:04:47 +00:00
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2023-05-28 15:22:49 +00:00
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"stone" => Ok(NonMetric::Stone),
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"stones" => Ok(NonMetric::Stone),
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"st" => Ok(NonMetric::Stone),
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2023-05-14 00:04:47 +00:00
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2023-05-28 17:32:31 +00:00
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// Temperature
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2023-05-29 18:52:34 +00:00
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"degree Fahrenheit" => Ok(NonMetric::Fahrenheit),
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"degrees Fahrenheit" => Ok(NonMetric::Fahrenheit),
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"degree fahrenheit" => Ok(NonMetric::Fahrenheit),
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"degrees fahrenheit" => Ok(NonMetric::Fahrenheit),
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"Fahrenheit" => Ok(NonMetric::Fahrenheit),
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"fahrenheit" => Ok(NonMetric::Fahrenheit),
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2023-05-28 17:32:31 +00:00
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"°F" => Ok(NonMetric::Fahrenheit),
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"F" => Ok(NonMetric::Fahrenheit),
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2023-05-28 23:55:43 +00:00
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// Area
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2023-05-29 18:58:29 +00:00
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"square inch" => Ok(NonMetric::SquareInch),
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"square inches" => Ok(NonMetric::SquareInch),
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"square in" => Ok(NonMetric::SquareInch),
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"sq inch" => Ok(NonMetric::SquareInch),
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"sq inches" => Ok(NonMetric::SquareInch),
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"sq in" => Ok(NonMetric::SquareInch),
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2023-05-28 23:55:43 +00:00
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"inch²" => Ok(NonMetric::SquareInch),
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"inches²" => Ok(NonMetric::SquareInch),
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"in²" => Ok(NonMetric::SquareInch),
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2023-05-29 18:58:29 +00:00
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"\"²" => Ok(NonMetric::SquareInch),
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"″²" => Ok(NonMetric::SquareInch),
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"inch^2" => Ok(NonMetric::SquareInch),
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"inches^2" => Ok(NonMetric::SquareInch),
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"in^2" => Ok(NonMetric::SquareInch),
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"\"^2" => Ok(NonMetric::SquareInch),
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2023-05-28 23:55:43 +00:00
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2023-05-29 19:03:08 +00:00
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"square foot" => Ok(NonMetric::SquareFoot),
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"square feet" => Ok(NonMetric::SquareFoot),
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"square ft" => Ok(NonMetric::SquareFoot),
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"sq foot" => Ok(NonMetric::SquareFoot),
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"sq feet" => Ok(NonMetric::SquareFoot),
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"sq ft" => Ok(NonMetric::SquareFoot),
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2023-05-29 00:01:56 +00:00
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"foot²" => Ok(NonMetric::SquareFoot),
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"feet²" => Ok(NonMetric::SquareFoot),
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"ft²" => Ok(NonMetric::SquareFoot),
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2023-05-29 19:03:08 +00:00
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"'²" => Ok(NonMetric::SquareFoot),
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"′²" => Ok(NonMetric::SquareFoot),
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"foot^2" => Ok(NonMetric::SquareFoot),
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"feet^2" => Ok(NonMetric::SquareFoot),
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"ft^2" => Ok(NonMetric::SquareFoot),
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"'^2" => Ok(NonMetric::SquareFoot),
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"sf" => Ok(NonMetric::SquareFoot),
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2023-05-29 00:01:56 +00:00
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2023-05-29 00:18:30 +00:00
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"acre" => Ok(NonMetric::Acre),
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"acres" => Ok(NonMetric::Acre),
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"ac" => Ok(NonMetric::Acre),
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2023-05-29 19:05:08 +00:00
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"square mile" => Ok(NonMetric::SquareMile),
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"square miles" => Ok(NonMetric::SquareMile),
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"square mi" => Ok(NonMetric::SquareMile),
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"sq mile" => Ok(NonMetric::SquareMile),
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"sq miles" => Ok(NonMetric::SquareMile),
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"sq mi" => Ok(NonMetric::SquareMile),
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2023-05-29 00:27:55 +00:00
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"mile²" => Ok(NonMetric::SquareMile),
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"miles²" => Ok(NonMetric::SquareMile),
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"mi²" => Ok(NonMetric::SquareMile),
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2023-05-29 19:05:08 +00:00
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"mile^2" => Ok(NonMetric::SquareMile),
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"miles^2" => Ok(NonMetric::SquareMile),
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"mi^2" => Ok(NonMetric::SquareMile),
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2023-05-29 00:27:55 +00:00
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2023-05-29 19:29:10 +00:00
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// Volume
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"cubic inch" => Ok(NonMetric::CubicInch),
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"cubic inches" => Ok(NonMetric::CubicInch),
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"cubic in" => Ok(NonMetric::CubicInch),
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"cu inch" => Ok(NonMetric::CubicInch),
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"cu inches" => Ok(NonMetric::CubicInch),
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"cu in" => Ok(NonMetric::CubicInch),
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"inch³" => Ok(NonMetric::CubicInch),
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"inches³" => Ok(NonMetric::CubicInch),
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"in³" => Ok(NonMetric::CubicInch),
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"inch^3" => Ok(NonMetric::CubicInch),
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"inches^3" => Ok(NonMetric::CubicInch),
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"in^3" => Ok(NonMetric::CubicInch),
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2023-05-29 19:40:03 +00:00
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"cubic foot" => Ok(NonMetric::CubicFoot),
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"cubic feet" => Ok(NonMetric::CubicFoot),
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"cubic ft" => Ok(NonMetric::CubicFoot),
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"cu foot" => Ok(NonMetric::CubicFoot),
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"cu feet" => Ok(NonMetric::CubicFoot),
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"cu ft" => Ok(NonMetric::CubicFoot),
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"foot³" => Ok(NonMetric::CubicFoot),
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"feet³" => Ok(NonMetric::CubicFoot),
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"ft³" => Ok(NonMetric::CubicFoot),
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"foot^3" => Ok(NonMetric::CubicFoot),
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"feet^3" => Ok(NonMetric::CubicFoot),
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"ft^3" => Ok(NonMetric::CubicFoot),
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2023-05-30 17:01:35 +00:00
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// Fluid volume
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"imperial gallon" => Ok(NonMetric::ImperialGallon),
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"imperial gallons" => Ok(NonMetric::ImperialGallon),
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"imp gal" => Ok(NonMetric::ImperialGallon),
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2023-05-30 17:08:42 +00:00
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"imperial quart" => Ok(NonMetric::ImperialQuart),
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"imperial quarts" => Ok(NonMetric::ImperialQuart),
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"imp qt" => Ok(NonMetric::ImperialQuart),
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2023-05-28 15:22:49 +00:00
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_ => Err(ParseError::UnknownUnit(input)),
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2023-05-14 00:04:47 +00:00
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}
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}
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#[derive(Debug, PartialEq)]
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enum Token {
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Number(String),
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Unit(String),
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}
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enum TokState {
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Neutral,
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Number,
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2023-05-29 18:48:45 +00:00
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Unit(bool),
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2023-05-14 00:04:47 +00:00
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}
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fn tokenize(input: &str) -> Vec<Token> {
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let mut tokens = Vec::new();
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let mut token = String::new();
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let mut state = TokState::Neutral;
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for c in input.chars() {
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match state {
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TokState::Neutral => {
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if c.is_ascii_digit() || c == '-' {
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token.push(c);
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state = TokState::Number;
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} else if !c.is_whitespace() {
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token.push(c);
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2023-05-29 18:48:45 +00:00
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state = TokState::Unit(false);
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2023-05-14 00:04:47 +00:00
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}
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}
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TokState::Number => {
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if c.is_ascii_digit() ||
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c.is_whitespace() ||
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c == '.' {
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token.push(c);
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} else {
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tokens.push(Token::Number(token.trim().to_string()));
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2023-05-29 18:48:45 +00:00
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state = TokState::Unit(false);
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2023-05-14 00:04:47 +00:00
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token = String::new();
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token.push(c);
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}
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}
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2023-05-29 18:48:45 +00:00
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TokState::Unit(after_caret) => {
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if !after_caret && (c.is_ascii_digit() || c == '-') {
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2023-05-29 18:43:02 +00:00
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tokens.push(Token::Unit(token.trim().to_string()));
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2023-05-14 00:04:47 +00:00
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state = TokState::Number;
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token = String::new();
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token.push(c);
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2023-05-29 18:48:45 +00:00
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} else if c == '^' {
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token.push(c);
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state = TokState::Unit(true);
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} else if c.is_whitespace() {
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token.push(c);
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state = TokState::Unit(false);
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2023-05-14 00:04:47 +00:00
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} else {
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2023-05-29 18:43:02 +00:00
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token.push(c);
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2023-05-14 00:04:47 +00:00
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}
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}
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}
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}
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match state {
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TokState::Neutral => { assert!(token.len() == 0); }
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TokState::Number => { tokens.push(Token::Number(token.trim().to_string())); }
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2023-05-29 18:48:45 +00:00
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TokState::Unit(_) => { tokens.push(Token::Unit(token.trim().to_string())); }
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2023-05-14 00:04:47 +00:00
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}
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tokens
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}
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#[cfg(test)]
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mod test {
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use super::*;
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#[test]
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fn parsing() {
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assert_eq!(parse(""), Ok(vec![]));
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assert_eq!(parse("5 ft"), Ok(vec![
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NonMetricQuantity { amount: 5.0, unit: NonMetric::Foot },
|
|
|
|
|
]));
|
|
|
|
|
assert_eq!(parse("5 ft 8 in"), Ok(vec![
|
|
|
|
|
NonMetricQuantity { amount: 5.0, unit: NonMetric::Foot },
|
|
|
|
|
NonMetricQuantity { amount: 8.0, unit: NonMetric::Inch },
|
|
|
|
|
]));
|
2023-05-28 15:07:28 +00:00
|
|
|
|
assert_eq!(parse("20 000 lbs"), Ok(vec![
|
|
|
|
|
NonMetricQuantity { amount: 20_000.0, unit: NonMetric::Pound },
|
|
|
|
|
]));
|
2023-05-14 00:04:47 +00:00
|
|
|
|
|
|
|
|
|
assert_eq!(parse("12.0."), Err(ParseError::NotValidNumber("12.0.".to_string())));
|
|
|
|
|
assert_eq!(parse("ft"), Err(ParseError::UnexpectedUnit("ft".to_string())));
|
|
|
|
|
assert_eq!(parse("5 tf"), Err(ParseError::UnknownUnit("tf".to_string())));
|
|
|
|
|
assert_eq!(parse("12"), Err(ParseError::ExpectedUnit));
|
|
|
|
|
}
|
|
|
|
|
|
2023-05-28 15:07:28 +00:00
|
|
|
|
#[test]
|
|
|
|
|
fn numbers() {
|
2023-05-28 15:22:49 +00:00
|
|
|
|
assert_eq!(parse_number("".to_string()), Err(ParseError::NotValidNumber("".to_string())));
|
|
|
|
|
assert_eq!(parse_number("1".to_string()), Ok(1.0));
|
|
|
|
|
assert_eq!(parse_number("1.0".to_string()), Ok(1.0));
|
|
|
|
|
assert_eq!(parse_number("0.1".to_string()), Ok(0.1));
|
|
|
|
|
assert_eq!(parse_number("0.1.".to_string()), Err(ParseError::NotValidNumber("0.1.".to_string())));
|
|
|
|
|
assert_eq!(parse_number("-10".to_string()), Ok(-10.0));
|
|
|
|
|
assert_eq!(parse_number("10\t00\u{1680}000".to_string()), Ok(10_00_000.0));
|
2023-05-28 15:07:28 +00:00
|
|
|
|
}
|
|
|
|
|
|
2023-05-14 00:04:47 +00:00
|
|
|
|
#[test]
|
|
|
|
|
fn units() {
|
|
|
|
|
// Length
|
2023-05-28 15:22:49 +00:00
|
|
|
|
assert_eq!(parse_unit("inch".to_string()), Ok(NonMetric::Inch));
|
|
|
|
|
assert_eq!(parse_unit("inches".to_string()), Ok(NonMetric::Inch));
|
|
|
|
|
assert_eq!(parse_unit("in".to_string()), Ok(NonMetric::Inch));
|
|
|
|
|
assert_eq!(parse_unit("\"".to_string()), Ok(NonMetric::Inch));
|
|
|
|
|
assert_eq!(parse_unit("″".to_string()), Ok(NonMetric::Inch));
|
|
|
|
|
|
|
|
|
|
assert_eq!(parse_unit("foot".to_string()), Ok(NonMetric::Foot));
|
|
|
|
|
assert_eq!(parse_unit("feet".to_string()), Ok(NonMetric::Foot));
|
|
|
|
|
assert_eq!(parse_unit("ft".to_string()), Ok(NonMetric::Foot));
|
|
|
|
|
assert_eq!(parse_unit("'".to_string()), Ok(NonMetric::Foot));
|
|
|
|
|
assert_eq!(parse_unit("′".to_string()), Ok(NonMetric::Foot));
|
|
|
|
|
|
|
|
|
|
assert_eq!(parse_unit("yard".to_string()), Ok(NonMetric::Yard));
|
|
|
|
|
assert_eq!(parse_unit("yards".to_string()), Ok(NonMetric::Yard));
|
|
|
|
|
assert_eq!(parse_unit("yd".to_string()), Ok(NonMetric::Yard));
|
|
|
|
|
|
|
|
|
|
assert_eq!(parse_unit("mile".to_string()), Ok(NonMetric::Mile));
|
|
|
|
|
assert_eq!(parse_unit("miles".to_string()), Ok(NonMetric::Mile));
|
|
|
|
|
assert_eq!(parse_unit("mi".to_string()), Ok(NonMetric::Mile));
|
|
|
|
|
assert_eq!(parse_unit("m".to_string()), Ok(NonMetric::Mile));
|
2023-05-14 00:04:47 +00:00
|
|
|
|
|
|
|
|
|
// Weight
|
2023-05-28 15:22:49 +00:00
|
|
|
|
assert_eq!(parse_unit("ounce".to_string()), Ok(NonMetric::Ounce));
|
|
|
|
|
assert_eq!(parse_unit("ounces".to_string()), Ok(NonMetric::Ounce));
|
|
|
|
|
assert_eq!(parse_unit("oz".to_string()), Ok(NonMetric::Ounce));
|
2023-05-14 00:04:47 +00:00
|
|
|
|
|
2023-05-28 15:22:49 +00:00
|
|
|
|
assert_eq!(parse_unit("pound".to_string()), Ok(NonMetric::Pound));
|
|
|
|
|
assert_eq!(parse_unit("pounds".to_string()), Ok(NonMetric::Pound));
|
|
|
|
|
assert_eq!(parse_unit("lb".to_string()), Ok(NonMetric::Pound));
|
|
|
|
|
assert_eq!(parse_unit("lbs".to_string()), Ok(NonMetric::Pound));
|
|
|
|
|
assert_eq!(parse_unit("#".to_string()), Ok(NonMetric::Pound));
|
2023-05-14 00:04:47 +00:00
|
|
|
|
|
2023-05-28 15:22:49 +00:00
|
|
|
|
assert_eq!(parse_unit("stone".to_string()), Ok(NonMetric::Stone));
|
|
|
|
|
assert_eq!(parse_unit("stones".to_string()), Ok(NonMetric::Stone));
|
|
|
|
|
assert_eq!(parse_unit("st".to_string()), Ok(NonMetric::Stone));
|
2023-05-14 00:04:47 +00:00
|
|
|
|
|
2023-05-28 17:32:31 +00:00
|
|
|
|
// Temperature
|
2023-05-29 18:52:34 +00:00
|
|
|
|
assert_eq!(parse_unit("degree Fahrenheit".to_string()), Ok(NonMetric::Fahrenheit));
|
|
|
|
|
assert_eq!(parse_unit("degrees Fahrenheit".to_string()), Ok(NonMetric::Fahrenheit));
|
|
|
|
|
assert_eq!(parse_unit("degree fahrenheit".to_string()), Ok(NonMetric::Fahrenheit));
|
|
|
|
|
assert_eq!(parse_unit("degrees fahrenheit".to_string()), Ok(NonMetric::Fahrenheit));
|
|
|
|
|
assert_eq!(parse_unit("Fahrenheit".to_string()), Ok(NonMetric::Fahrenheit));
|
|
|
|
|
assert_eq!(parse_unit("fahrenheit".to_string()), Ok(NonMetric::Fahrenheit));
|
2023-05-28 17:32:31 +00:00
|
|
|
|
assert_eq!(parse_unit("°F".to_string()), Ok(NonMetric::Fahrenheit));
|
|
|
|
|
assert_eq!(parse_unit("F".to_string()), Ok(NonMetric::Fahrenheit));
|
|
|
|
|
|
2023-05-28 23:55:43 +00:00
|
|
|
|
// Area
|
2023-05-29 18:58:29 +00:00
|
|
|
|
assert_eq!(parse_unit("square inch".to_string()), Ok(NonMetric::SquareInch));
|
|
|
|
|
assert_eq!(parse_unit("square inches".to_string()), Ok(NonMetric::SquareInch));
|
|
|
|
|
assert_eq!(parse_unit("square in".to_string()), Ok(NonMetric::SquareInch));
|
|
|
|
|
assert_eq!(parse_unit("sq inch".to_string()), Ok(NonMetric::SquareInch));
|
|
|
|
|
assert_eq!(parse_unit("sq inches".to_string()), Ok(NonMetric::SquareInch));
|
|
|
|
|
assert_eq!(parse_unit("sq in".to_string()), Ok(NonMetric::SquareInch));
|
2023-05-28 23:55:43 +00:00
|
|
|
|
assert_eq!(parse_unit("inch²".to_string()), Ok(NonMetric::SquareInch));
|
|
|
|
|
assert_eq!(parse_unit("inches²".to_string()), Ok(NonMetric::SquareInch));
|
|
|
|
|
assert_eq!(parse_unit("in²".to_string()), Ok(NonMetric::SquareInch));
|
2023-05-29 18:58:29 +00:00
|
|
|
|
assert_eq!(parse_unit("\"²".to_string()), Ok(NonMetric::SquareInch));
|
|
|
|
|
assert_eq!(parse_unit("″²".to_string()), Ok(NonMetric::SquareInch));
|
|
|
|
|
assert_eq!(parse_unit("inch^2".to_string()), Ok(NonMetric::SquareInch));
|
|
|
|
|
assert_eq!(parse_unit("inches^2".to_string()), Ok(NonMetric::SquareInch));
|
|
|
|
|
assert_eq!(parse_unit("in^2".to_string()), Ok(NonMetric::SquareInch));
|
|
|
|
|
assert_eq!(parse_unit("\"^2".to_string()), Ok(NonMetric::SquareInch));
|
2023-05-28 23:55:43 +00:00
|
|
|
|
|
2023-05-29 19:03:08 +00:00
|
|
|
|
assert_eq!(parse_unit("square foot".to_string()), Ok(NonMetric::SquareFoot));
|
|
|
|
|
assert_eq!(parse_unit("square feet".to_string()), Ok(NonMetric::SquareFoot));
|
|
|
|
|
assert_eq!(parse_unit("square ft".to_string()), Ok(NonMetric::SquareFoot));
|
|
|
|
|
assert_eq!(parse_unit("sq foot".to_string()), Ok(NonMetric::SquareFoot));
|
|
|
|
|
assert_eq!(parse_unit("sq feet".to_string()), Ok(NonMetric::SquareFoot));
|
|
|
|
|
assert_eq!(parse_unit("sq ft".to_string()), Ok(NonMetric::SquareFoot));
|
2023-05-29 00:01:56 +00:00
|
|
|
|
assert_eq!(parse_unit("foot²".to_string()), Ok(NonMetric::SquareFoot));
|
|
|
|
|
assert_eq!(parse_unit("feet²".to_string()), Ok(NonMetric::SquareFoot));
|
|
|
|
|
assert_eq!(parse_unit("ft²".to_string()), Ok(NonMetric::SquareFoot));
|
2023-05-29 19:03:08 +00:00
|
|
|
|
assert_eq!(parse_unit("'²".to_string()), Ok(NonMetric::SquareFoot));
|
|
|
|
|
assert_eq!(parse_unit("′²".to_string()), Ok(NonMetric::SquareFoot));
|
|
|
|
|
assert_eq!(parse_unit("foot^2".to_string()), Ok(NonMetric::SquareFoot));
|
|
|
|
|
assert_eq!(parse_unit("feet^2".to_string()), Ok(NonMetric::SquareFoot));
|
|
|
|
|
assert_eq!(parse_unit("ft^2".to_string()), Ok(NonMetric::SquareFoot));
|
|
|
|
|
assert_eq!(parse_unit("'^2".to_string()), Ok(NonMetric::SquareFoot));
|
|
|
|
|
assert_eq!(parse_unit("sf".to_string()), Ok(NonMetric::SquareFoot));
|
2023-05-29 00:01:56 +00:00
|
|
|
|
|
2023-05-29 00:18:30 +00:00
|
|
|
|
assert_eq!(parse_unit("acre".to_string()), Ok(NonMetric::Acre));
|
|
|
|
|
assert_eq!(parse_unit("acres".to_string()), Ok(NonMetric::Acre));
|
|
|
|
|
assert_eq!(parse_unit("ac".to_string()), Ok(NonMetric::Acre));
|
|
|
|
|
|
2023-05-29 19:05:08 +00:00
|
|
|
|
assert_eq!(parse_unit("square mile".to_string()), Ok(NonMetric::SquareMile));
|
|
|
|
|
assert_eq!(parse_unit("square miles".to_string()), Ok(NonMetric::SquareMile));
|
|
|
|
|
assert_eq!(parse_unit("square mi".to_string()), Ok(NonMetric::SquareMile));
|
|
|
|
|
assert_eq!(parse_unit("sq mile".to_string()), Ok(NonMetric::SquareMile));
|
|
|
|
|
assert_eq!(parse_unit("sq miles".to_string()), Ok(NonMetric::SquareMile));
|
|
|
|
|
assert_eq!(parse_unit("sq mi".to_string()), Ok(NonMetric::SquareMile));
|
2023-05-29 00:27:55 +00:00
|
|
|
|
assert_eq!(parse_unit("mile²".to_string()), Ok(NonMetric::SquareMile));
|
|
|
|
|
assert_eq!(parse_unit("miles²".to_string()), Ok(NonMetric::SquareMile));
|
|
|
|
|
assert_eq!(parse_unit("mi²".to_string()), Ok(NonMetric::SquareMile));
|
2023-05-29 19:05:08 +00:00
|
|
|
|
assert_eq!(parse_unit("mile^2".to_string()), Ok(NonMetric::SquareMile));
|
|
|
|
|
assert_eq!(parse_unit("miles^2".to_string()), Ok(NonMetric::SquareMile));
|
|
|
|
|
assert_eq!(parse_unit("mi^2".to_string()), Ok(NonMetric::SquareMile));
|
2023-05-29 00:27:55 +00:00
|
|
|
|
|
2023-05-29 19:29:10 +00:00
|
|
|
|
// Volume
|
|
|
|
|
assert_eq!(parse_unit("cubic inch".to_string()), Ok(NonMetric::CubicInch));
|
|
|
|
|
assert_eq!(parse_unit("cubic inches".to_string()), Ok(NonMetric::CubicInch));
|
|
|
|
|
assert_eq!(parse_unit("cubic in".to_string()), Ok(NonMetric::CubicInch));
|
|
|
|
|
assert_eq!(parse_unit("cu inch".to_string()), Ok(NonMetric::CubicInch));
|
|
|
|
|
assert_eq!(parse_unit("cu inches".to_string()), Ok(NonMetric::CubicInch));
|
|
|
|
|
assert_eq!(parse_unit("cu in".to_string()), Ok(NonMetric::CubicInch));
|
|
|
|
|
assert_eq!(parse_unit("inch³".to_string()), Ok(NonMetric::CubicInch));
|
|
|
|
|
assert_eq!(parse_unit("inches³".to_string()), Ok(NonMetric::CubicInch));
|
|
|
|
|
assert_eq!(parse_unit("in³".to_string()), Ok(NonMetric::CubicInch));
|
|
|
|
|
assert_eq!(parse_unit("inch^3".to_string()), Ok(NonMetric::CubicInch));
|
|
|
|
|
assert_eq!(parse_unit("inches^3".to_string()), Ok(NonMetric::CubicInch));
|
|
|
|
|
assert_eq!(parse_unit("in^3".to_string()), Ok(NonMetric::CubicInch));
|
|
|
|
|
|
2023-05-29 19:40:03 +00:00
|
|
|
|
assert_eq!(parse_unit("cubic foot".to_string()), Ok(NonMetric::CubicFoot));
|
|
|
|
|
assert_eq!(parse_unit("cubic feet".to_string()), Ok(NonMetric::CubicFoot));
|
|
|
|
|
assert_eq!(parse_unit("cubic ft".to_string()), Ok(NonMetric::CubicFoot));
|
|
|
|
|
assert_eq!(parse_unit("cu foot".to_string()), Ok(NonMetric::CubicFoot));
|
|
|
|
|
assert_eq!(parse_unit("cu feet".to_string()), Ok(NonMetric::CubicFoot));
|
|
|
|
|
assert_eq!(parse_unit("cu ft".to_string()), Ok(NonMetric::CubicFoot));
|
|
|
|
|
assert_eq!(parse_unit("foot³".to_string()), Ok(NonMetric::CubicFoot));
|
|
|
|
|
assert_eq!(parse_unit("feet³".to_string()), Ok(NonMetric::CubicFoot));
|
|
|
|
|
assert_eq!(parse_unit("ft³".to_string()), Ok(NonMetric::CubicFoot));
|
|
|
|
|
assert_eq!(parse_unit("foot^3".to_string()), Ok(NonMetric::CubicFoot));
|
|
|
|
|
assert_eq!(parse_unit("feet^3".to_string()), Ok(NonMetric::CubicFoot));
|
|
|
|
|
assert_eq!(parse_unit("ft^3".to_string()), Ok(NonMetric::CubicFoot));
|
|
|
|
|
|
2023-05-30 17:01:35 +00:00
|
|
|
|
// Fluid volume
|
|
|
|
|
assert_eq!(parse_unit("imperial gallon".to_string()), Ok(NonMetric::ImperialGallon));
|
|
|
|
|
assert_eq!(parse_unit("imperial gallons".to_string()), Ok(NonMetric::ImperialGallon));
|
|
|
|
|
assert_eq!(parse_unit("imp gal".to_string()), Ok(NonMetric::ImperialGallon));
|
|
|
|
|
|
2023-05-30 17:08:42 +00:00
|
|
|
|
assert_eq!(parse_unit("imperial quart".to_string()), Ok(NonMetric::ImperialQuart));
|
|
|
|
|
assert_eq!(parse_unit("imperial quarts".to_string()), Ok(NonMetric::ImperialQuart));
|
|
|
|
|
assert_eq!(parse_unit("imp qt".to_string()), Ok(NonMetric::ImperialQuart));
|
|
|
|
|
|
2023-05-14 00:04:47 +00:00
|
|
|
|
// Unknown unit
|
2023-05-28 15:22:49 +00:00
|
|
|
|
assert_eq!(parse_unit("hutenosa".to_string()), Err(ParseError::UnknownUnit("hutenosa".to_string())));
|
2023-05-14 00:04:47 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#[test]
|
|
|
|
|
fn tokens() {
|
|
|
|
|
assert_eq!(tokenize(""), vec![]);
|
|
|
|
|
assert_eq!(tokenize("10"), vec![Token::Number("10".to_string())]);
|
|
|
|
|
assert_eq!(tokenize(" 10 "), vec![Token::Number("10".to_string())]);
|
|
|
|
|
assert_eq!(tokenize("10 000"), vec![Token::Number("10 000".to_string())]);
|
2023-05-28 15:07:28 +00:00
|
|
|
|
assert_eq!(tokenize("10\t000"), vec![Token::Number("10\t000".to_string())]);
|
|
|
|
|
assert_eq!(tokenize("10\u{1680}000"), vec![Token::Number("10\u{1680}000".to_string())]);
|
2023-05-14 00:04:47 +00:00
|
|
|
|
assert_eq!(tokenize("10.0.1"), vec![Token::Number("10.0.1".to_string())]);
|
|
|
|
|
assert_eq!(tokenize("ft"), vec![Token::Unit("ft".to_string())]);
|
|
|
|
|
assert_eq!(
|
|
|
|
|
tokenize("10 ft"),
|
|
|
|
|
vec![
|
|
|
|
|
Token::Number("10".to_string()),
|
|
|
|
|
Token::Unit("ft".to_string()),
|
|
|
|
|
]
|
|
|
|
|
);
|
|
|
|
|
assert_eq!(
|
|
|
|
|
tokenize("5 ft 7 in"),
|
|
|
|
|
vec![
|
|
|
|
|
Token::Number("5".to_string()),
|
|
|
|
|
Token::Unit("ft".to_string()),
|
|
|
|
|
Token::Number("7".to_string()),
|
|
|
|
|
Token::Unit("in".to_string()),
|
|
|
|
|
]
|
|
|
|
|
);
|
|
|
|
|
assert_eq!(
|
|
|
|
|
tokenize("5\"7'"),
|
|
|
|
|
vec![
|
|
|
|
|
Token::Number("5".to_string()),
|
|
|
|
|
Token::Unit("\"".to_string()),
|
|
|
|
|
Token::Number("7".to_string()),
|
|
|
|
|
Token::Unit("'".to_string()),
|
|
|
|
|
]
|
|
|
|
|
);
|
|
|
|
|
assert_eq!(
|
|
|
|
|
tokenize(" 2.2lbs "),
|
|
|
|
|
vec![
|
|
|
|
|
Token::Number("2.2".to_string()),
|
|
|
|
|
Token::Unit("lbs".to_string()),
|
|
|
|
|
]
|
|
|
|
|
);
|
2023-05-29 18:43:02 +00:00
|
|
|
|
assert_eq!(
|
|
|
|
|
tokenize("sq ft"),
|
|
|
|
|
vec![
|
|
|
|
|
Token::Unit("sq ft".to_string()),
|
|
|
|
|
]
|
|
|
|
|
);
|
|
|
|
|
assert_eq!(
|
|
|
|
|
tokenize("sq ft2"),
|
|
|
|
|
vec![
|
|
|
|
|
Token::Unit("sq ft".to_string()),
|
|
|
|
|
Token::Number("2".to_string()),
|
|
|
|
|
]
|
|
|
|
|
);
|
2023-05-29 18:48:45 +00:00
|
|
|
|
assert_eq!(
|
|
|
|
|
tokenize("ft^2"),
|
|
|
|
|
vec![
|
|
|
|
|
Token::Unit("ft^2".to_string()),
|
|
|
|
|
]
|
|
|
|
|
);
|
|
|
|
|
assert_eq!(
|
|
|
|
|
tokenize("ft^22"),
|
|
|
|
|
vec![
|
|
|
|
|
Token::Unit("ft^22".to_string()),
|
|
|
|
|
]
|
|
|
|
|
);
|
|
|
|
|
assert_eq!(
|
|
|
|
|
tokenize("ft^2 2"),
|
|
|
|
|
vec![
|
|
|
|
|
Token::Unit("ft^2".to_string()),
|
|
|
|
|
Token::Number("2".to_string()),
|
|
|
|
|
]
|
|
|
|
|
);
|
|
|
|
|
assert_eq!(
|
|
|
|
|
tokenize("ft^2 s^-1 lb 2"),
|
|
|
|
|
vec![
|
|
|
|
|
Token::Unit("ft^2 s^-1 lb".to_string()),
|
|
|
|
|
Token::Number("2".to_string()),
|
|
|
|
|
]
|
|
|
|
|
);
|
2023-05-14 00:04:47 +00:00
|
|
|
|
}
|
|
|
|
|
}
|