69 lines
1.9 KiB
Rust
69 lines
1.9 KiB
Rust
use nom::{
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bytes::complete::take_while,
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combinator::{map, verify},
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sequence::tuple,
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IResult,
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};
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use super::{
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combinator::{l_angle2_token, node, r_angle2_token, GreenElement},
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input::Input,
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SyntaxKind::*,
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};
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#[cfg_attr(
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feature = "tracing",
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tracing::instrument(level = "debug", skip(input), fields(input = input.s))
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)]
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pub fn target_node(input: Input) -> IResult<Input, GreenElement, ()> {
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let mut parser = map(
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tuple((
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l_angle2_token,
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verify(
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take_while(|c: char| c != '<' && c != '\n' && c != '>'),
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|s: &Input| {
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s.as_str().starts_with(|c| c != ' ') && s.as_str().ends_with(|c| c != ' ')
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},
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),
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r_angle2_token,
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)),
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|(l_angle2, target, r_angle2)| node(TARGET, [l_angle2, target.text_token(), r_angle2]),
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);
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crate::lossless_parser!(parser, input)
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}
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#[test]
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fn parse() {
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use crate::{ast::Target, tests::to_ast, ParseConfig};
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let to_target = to_ast::<Target>(target_node);
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insta::assert_debug_snapshot!(
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to_target("<<target>>").syntax,
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@r###"
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TARGET@0..10
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L_ANGLE2@0..2 "<<"
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TEXT@2..8 "target"
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R_ANGLE2@8..10 ">>"
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"###
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);
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insta::assert_debug_snapshot!(
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to_target("<<tar get>>").syntax,
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@r###"
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TARGET@0..11
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L_ANGLE2@0..2 "<<"
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TEXT@2..9 "tar get"
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R_ANGLE2@9..11 ">>"
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"###
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);
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let config = &ParseConfig::default();
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assert!(target_node(("<<target >>", config).into()).is_err());
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assert!(target_node(("<< target>>", config).into()).is_err());
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assert!(target_node(("<<ta<get>>", config).into()).is_err());
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assert!(target_node(("<<ta>get>>", config).into()).is_err());
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assert!(target_node(("<<ta\nget>>", config).into()).is_err());
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assert!(target_node(("<<target>", config).into()).is_err());
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}
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