104 lines
3.4 KiB
Rust
104 lines
3.4 KiB
Rust
use nom::branch::alt;
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use nom::bytes::complete::tag;
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use nom::character::complete::anychar;
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use nom::character::complete::space0;
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use nom::combinator::map;
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use nom::combinator::not;
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use nom::combinator::peek;
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use nom::combinator::recognize;
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use nom::multi::many0;
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use nom::multi::many_till;
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use nom::sequence::preceded;
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use nom::sequence::tuple;
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use nom::InputTake;
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use super::affiliated_keyword::parse_affiliated_keywords;
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use super::org_source::OrgSource;
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use super::util::maybe_consume_trailing_whitespace_if_not_exiting_mid_line;
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use super::util::org_line_ending;
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use crate::context::parser_with_context;
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use crate::context::RefContext;
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use crate::error::Res;
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use crate::parser::util::exit_matcher_parser;
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use crate::parser::util::get_consumed;
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use crate::parser::util::start_of_line;
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use crate::types::FixedWidthArea;
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use crate::types::Keyword;
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#[cfg_attr(
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feature = "tracing",
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tracing::instrument(ret, level = "debug", skip(context, affiliated_keywords))
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)]
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pub(crate) fn fixed_width_area<'b, 'g, 'r, 's, AK>(
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affiliated_keywords: AK,
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remaining: OrgSource<'s>,
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context: RefContext<'b, 'g, 'r, 's>,
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input: OrgSource<'s>,
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) -> Res<OrgSource<'s>, FixedWidthArea<'s>>
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where
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AK: IntoIterator<Item = Keyword<'s>>,
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{
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let exit_matcher = parser_with_context!(exit_matcher_parser)(context);
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let (remaining, first_line) = fixed_width_area_line(remaining)?;
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let (remaining, remaining_lines) = many0(preceded(
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not(tuple((org_line_ending, exit_matcher))),
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map(
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tuple((org_line_ending, fixed_width_area_line)),
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|(_line_ending, line_contents)| line_contents,
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),
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))(remaining)?;
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let (remaining, post_blank) =
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maybe_consume_trailing_whitespace_if_not_exiting_mid_line(context, remaining)?;
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let source = get_consumed(input, remaining);
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let mut value = Vec::with_capacity(remaining_lines.len() + 1);
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value.push(Into::<&str>::into(first_line));
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value.extend(remaining_lines.into_iter().map(Into::<&str>::into));
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Ok((
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remaining,
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FixedWidthArea {
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source: source.into(),
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affiliated_keywords: parse_affiliated_keywords(
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context.get_global_settings(),
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affiliated_keywords,
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),
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value,
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post_blank: post_blank.map(Into::<&str>::into),
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},
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))
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}
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#[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
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fn fixed_width_area_line<'s>(input: OrgSource<'s>) -> Res<OrgSource<'s>, OrgSource<'s>> {
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start_of_line(input)?;
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let (remaining, _) = tuple((space0, tag(":")))(input)?;
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if let Ok((remain, _line_break)) = org_line_ending(remaining) {
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return Ok((remain, remaining.take(0)));
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}
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let (remaining, _) = tag(" ")(remaining)?;
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let (remaining, value) = recognize(many_till(anychar, peek(org_line_ending)))(remaining)?;
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Ok((remaining, value))
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}
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#[cfg_attr(
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feature = "tracing",
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tracing::instrument(ret, level = "debug", skip(_context, _affiliated_keywords))
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)]
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pub(crate) fn detect_fixed_width_area<'b, 'g, 'r, 's, AK>(
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_affiliated_keywords: AK,
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remaining: OrgSource<'s>,
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_context: RefContext<'b, 'g, 'r, 's>,
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input: OrgSource<'s>,
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) -> Res<OrgSource<'s>, ()>
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where
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AK: IntoIterator<Item = Keyword<'s>>,
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{
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tuple((
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start_of_line,
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space0,
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tag(":"),
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alt((tag(" "), org_line_ending)),
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))(remaining)?;
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Ok((input, ()))
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}
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