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use crate::directive::{DirectiveError, DirectiveImplementation, Processed};
use crate::page::PageMeta;
use crate::pagespec::PageSpec;
use crate::site::Site;
use crate::util::make_relative_link;
use crate::wikitext::ParsedDirective;
use std::path::Path;
#[derive(Debug, Default, Eq, PartialEq)]
pub struct PageStats {
pages: String,
}
impl DirectiveImplementation for PageStats {
const REQUIRED: &'static [&'static str] = &["pages"];
const ALLOWED: &'static [&'static str] = &["among", "style"];
const ALLOW_ANY_UNNAMED: bool = true;
fn from_parsed(p: &ParsedDirective) -> Self {
let args = p.args();
let pages = args.get("pages").unwrap();
Self::new(pages.to_string())
}
fn process(&self, site: &Site, meta: &mut PageMeta) -> Result<Processed, DirectiveError> {
let pagespec = PageSpec::new(meta.path(), &self.pages).map_err(DirectiveError::PageSpec)?;
let matches: Vec<String> = site
.markdown_pages()
.filter(|page| pagespec.matches(site, page.meta().path()))
.map(|page| format!("* {}\n", Self::link(meta.path(), page.meta())))
.collect();
Ok(Processed::Markdown(matches.join("")))
}
}
impl PageStats {
pub fn new(pages: String) -> Self {
Self { pages }
}
fn link(container: &Path, meta: &PageMeta) -> String {
let link = make_relative_link(container, meta.path());
format!("[{}]({})", meta.title(), link.display())
}
}
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