Struct Grammar 

pub struct Grammar;

The Pest parser struct.

The grammar is included directly from the grammar.pest file.

Grammar

WHITESPACE = _{ “ “ | “\t” }

not_operator = { “NOT” | “not” | “!” }

and_operator = { “AND” | “and” | “&” }

nand_operator = { “NAND” | “nand” | “!&” }

or_operator = { “OR” | “or” | “|” }

nor_operator = { “NOR” | “nor” | “!|” }

xor_operator = { “XOR” | “xor” | “^” }

xnor_operator = { “XNOR” | “xnor” | “!^” }

left_parenthesis = { “(” }

right_parenthesis = { “)” }

identifier = @{ ASCII_ALPHA_UPPER ~ !(ASCII_ALPHA_UPPER) }

term = { not_operator* ~ (identifier | left_parenthesis ~ expression ~ right_parenthesis) }

xor_clause = { term ~ ((xor_operator | xnor_operator) ~ term)* }

and_clause = { xor_clause ~ ((and_operator | nand_operator) ~ xor_clause)* }

expression = { and_clause ~ ((or_operator | nor_operator) ~ and_clause)* }

NEWLINE = _{ “\n” | “\r\n” }

file = { SOI ~ expression ~ NEWLINE ~ (expression ~ NEWLINE)* ~ EOI }

Trait Implementations

impl Parser<Rule> for Grammar

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

Parses a &str starting from rule.