40 lines
1.1 KiB
Rust
40 lines
1.1 KiB
Rust
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use nom::branch::alt;
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use nom::bytes::complete::{tag, take_until};
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use nom::character::complete::{char, line_ending, space1};
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use nom::multi::many0;
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use nom::IResult;
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use tracing::trace;
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/// Ignore the quotes and return the inner string.
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/// e.g. "unlock"
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pub fn quoted_string(s: &str) -> IResult<&str, &str> {
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short_trace("quoted string", s);
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let (s, _) = char('"')(s)?;
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let (s, string) = take_until("\"")(s)?;
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let (s, _) = char('"')(s)?;
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Ok((s, string))
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}
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pub fn ignore_whitespace(s: &str) -> IResult<&str, ()> {
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short_trace("ignore whitespace", s);
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let (s, ws) = many0(alt((tag("\t"), space1, line_ending)))(s)?;
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short_trace("ignore whitespace afterwards", s);
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Ok((s, ()))
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}
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pub fn until_eol(s: &str) -> IResult<&str, &str> {
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short_trace("eol", s);
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let (s, line) = take_until("\n")(s)?;
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let (s, _) = line_ending(s)?;
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short_trace("eol afterwards", s);
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Ok((s, line))
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}
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pub fn short_trace(prefix: &str, s: &str) {
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let mut max_len_left = 20;
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if s.len() < max_len_left {
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max_len_left = s.len();
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}
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trace!("{}: {:?}...", prefix, &s[0..max_len_left])
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}
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