75 lines
1.8 KiB
Rust
75 lines
1.8 KiB
Rust
// pest. The Elegant Parser
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//
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// Licensed under the Apache License, Version 2.0
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// <LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0> or the MIT
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// license <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. All files in the project carrying such notice may not be copied,
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// modified, or distributed except according to those terms.
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#![cfg_attr(not(feature = "std"), no_std)]
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extern crate alloc;
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#[cfg(not(feature = "std"))]
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use alloc::{format, vec, vec::Vec};
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#[macro_use]
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extern crate pest;
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extern crate pest_derive;
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#[cfg(feature = "grammar-extras")]
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use pest_derive::Parser;
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/// Surround-string parser.
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///
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/// This is a simple grammar of string parsing, where the strings end with a different delimiter char than what they
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/// start with. The allowable forms are:
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///
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/// ```text
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/// (foo)
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/// <bar>
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/// ```
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///
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/// To keep things simple, strings do not support any escape sequences.
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#[derive(Parser)]
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#[grammar = "../tests/surround.pest"]
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#[cfg(feature = "grammar-extras")]
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pub struct SurroundParser;
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#[test]
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#[cfg(feature = "grammar-extras")]
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fn surround_parenthesis() {
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parses_to! {
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parser: SurroundParser,
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input: "(hello world)",
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rule: Rule::Quote,
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tokens: [
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QuoteChars(1, 12)
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]
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}
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}
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#[test]
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#[cfg(feature = "grammar-extras")]
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fn surround_angle_brackets() {
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parses_to! {
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parser: SurroundParser,
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input: "<hello world>",
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rule: Rule::Quote,
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tokens: [
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QuoteChars(1, 12)
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]
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}
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}
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#[test]
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#[cfg(feature = "grammar-extras")]
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fn start_with_one_end_with_other() {
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fails_with! {
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parser: SurroundParser,
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input: "(hello world>",
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rule: Rule::Quote,
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positives: vec![],
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negatives: vec![],
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pos: 0
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}
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}
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