Enum Rule 

pub enum Rule {
    EOI,
    WHITESPACE,
    line_comment,
    file,
    command,
    definition,
    properties,
    property,
    query_get,
    query_count,
    where_clause,
    condition,
    operator,
    ident,
    value,
    string_literal,
    number,
    number_with_unit,
}

Variants

EOI

End-of-input

WHITESPACE

Ignores whitespace, tabs, and newlines

line_comment

Ignores single-line comments (from // to the end of the line)

file

A file is the start of input (SOI), followed by zero or more commands, and ending with the end of input (EOI).

command

A command is either a definition (DEFINE) or a query (GET).

definition

Defines a new bike. Example: DEFINE bike “Honda CBR” { year: 2021 }

properties

A list of one or more properties, separated by commas.

property

A single property in the format ‘key: value’. Example: year: 2021

query_get

Query ‘GET BIKES’, which can have additional clause ‘WHERE’.

query_count

Query ‘COUNT BIKES’, which can have additional clause ‘WHERE’.

where_clause

additional clause’WHERE’, which contains one condition.

condition

A filter condition ‘key value’. Example: type = sport

operator

A comparison operator.

ident

An identifier (field name or type). Starts with a letter or ‘’, followed by letters, digits, or ‘’.

value

A value, which can be a number with a unit (cc), just a number, a quoted string, or an identifier (e.g., ‘sport’).

string_literal

A text string in double quotes. Example: “Honda CBR600RR”

number

An integer. Example: 2021

number_with_unit

A number with the ‘cc’ suffix . Example: 599cc

Implementations

impl Rule

pub fn all_rules() -> &'static [Rule]

Trait Implementations

impl Clone for Rule

fn clone(&self) -> Rule

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Rule

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for Rule

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Rule

fn cmp(&self, other: &Rule) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl Parser<Rule> for MotogarageParser

fn parse<'i>(rule: Rule, input: &'i str) -> Result<Pairs<'i, Rule>, Error<Rule>>

Parses a &str starting from rule.

impl PartialEq for Rule

fn eq(&self, other: &Rule) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Rule

fn partial_cmp(&self, other: &Rule) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Rule

impl Eq for Rule

impl StructuralPartialEq for Rule