sv_parser_parser/expressions/
strings.rs

1use crate::*;
2
3// -----------------------------------------------------------------------------
4
5#[tracable_parser]
6#[packrat_parser]
7pub(crate) fn string_literal(s: Span) -> IResult<Span, StringLiteral> {
8    let (s, a) = ws(string_literal_impl)(s)?;
9    Ok((s, StringLiteral { nodes: a }))
10}
11
12#[tracable_parser]
13pub(crate) fn string_literal_impl(s: Span) -> IResult<Span, Locate> {
14    let (s, a) = tag("\"")(s)?;
15    let (s, b) = many0(alt((
16        is_not("\\\""),
17        map(pair(tag("\\"), take(1usize)), |(x, y)| {
18            concat(x, y).unwrap()
19        }),
20    )))(s)?;
21    let (s, c) = tag("\"")(s)?;
22
23    let mut ret = None;
24    for x in b {
25        ret = if let Some(ret) = ret {
26            Some(concat(ret, x).unwrap())
27        } else {
28            Some(x)
29        };
30    }
31
32    let a = if let Some(b) = ret {
33        let a = concat(a, b).unwrap();
34        concat(a, c).unwrap()
35    } else {
36        concat(a, c).unwrap()
37    };
38
39    Ok((s, into_locate(a)))
40}