pest_wdl_1/
lib.rs

1use pest::{
2    error::{Error, ErrorVariant},
3    iterators::Pair,
4    Parser, Position,
5};
6use pest_derive;
7
8#[derive(pest_derive::Parser)]
9#[grammar = "wdl.pest"]
10pub struct PestParser;
11
12pub fn parse_document<'a>(text: &'a str) -> Result<Pair<'a, Rule>, Error<Rule>> {
13    let mut root_pairs = PestParser::parse(Rule::document, text)?;
14    root_pairs.next().ok_or_else(|| {
15        Error::new_from_pos(
16            ErrorVariant::CustomError {
17                message: String::from("Empty WDL document"),
18            },
19            Position::from_start(text),
20        )
21    })
22}
pest_wdl_1/lib.rs

pest_wdl_1/
lib.rs
