incodoc 0.8.0

Incorporeal document format.
Documentation 
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use crate::*;

impl Doc {
    /// Returns a reference to the first heading in the document if there are any.
    pub fn first_heading(&self) -> Option<&Heading> {
        for item in &self.items {
            if let DocItem::Section(section) = item {
                return Some(&section.heading);
            }
        }
        None
    }

    /// Returns a reference to the first heading which has a level that is equal to the lowest
    /// level of any headings present, if there are any headings.
    pub fn first_biggest_heading(&self) -> Option<&Heading> {
        let mut res = None;
        let mut best = 256;
        for item in &self.items {
            if let DocItem::Section(section) = item {
                let level = section.heading.level as u32;
                if best > level {
                    best = level;
                    res = Some(&section.heading);
                }
            }
        }
        res
    }
}