45 lines
972 B
Rust
45 lines
972 B
Rust
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use nom::branch::alt;
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use nom::bytes::complete::is_not;
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use nom::bytes::complete::tag;
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use nom::sequence::delimited;
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use nom::IResult;
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use serde::{Deserialize, Serialize};
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use std::fmt;
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use std::str;
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#[derive(Clone, Debug, Default, Eq, Hash, PartialEq, Serialize, Deserialize)]
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pub struct Strand {
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pub value: String,
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}
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impl<'a> From<&'a str> for Strand {
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fn from(s: &str) -> Self {
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Strand {
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value: String::from(s),
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}
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}
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}
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impl fmt::Display for Strand {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "\"{}\"", self.value)
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}
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}
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pub fn strand(i: &str) -> IResult<&str, Strand> {
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let (i, v) = strand_raw(i)?;
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Ok((i, Strand::from(v)))
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}
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pub fn strand_raw(i: &str) -> IResult<&str, &str> {
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alt((strand_single, strand_double))(i)
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}
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fn strand_single(i: &str) -> IResult<&str, &str> {
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delimited(tag("\'"), is_not("\'"), tag("\'"))(i)
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}
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fn strand_double(i: &str) -> IResult<&str, &str> {
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delimited(tag("\""), is_not("\""), tag("\""))(i)
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}
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