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use crate::directive::Directive;
use crate::error::SiteError;
use crate::page::PageMeta;
use crate::site::Site;
use log::trace;
use std::collections::HashMap;
use std::path::Path;
#[derive(Debug, Eq, PartialEq)]
pub enum Snippet {
Markdown(String),
WikiLink(WikiLink),
Directive(Directive),
}
impl Snippet {
pub fn process(&self, site: &mut Site, meta: &mut PageMeta) -> Result<String, SiteError> {
trace!("Snippet::process: self={:?}", self);
let s = match self {
Snippet::Markdown(text) => text.into(),
Snippet::WikiLink(w) => {
let resolved = site.resolve(meta.path(), Path::new(w.target()))?;
trace!("resolved {} to {}", w.target(), resolved.display());
format!("[{}]({})", w.link_text(), resolved.display())
}
Snippet::Directive(d) => d.process(site, meta)?,
};
Ok(s)
}
}
#[derive(Debug, Eq, PartialEq)]
pub struct WikiLink {
link_text: String,
target: String,
}
impl WikiLink {
pub fn new(link_text: &str, target: &str) -> Self {
Self {
link_text: link_text.into(),
target: target.into(),
}
}
fn link_text(&self) -> &str {
&self.link_text
}
fn target(&self) -> &str {
&self.target
}
}
#[derive(Debug, Eq, PartialEq)]
pub struct ParsedDirective {
name: String,
args: HashMap<String, String>,
}
impl ParsedDirective {
pub fn new(name: &str, args: HashMap<String, String>) -> Result<Self, SiteError> {
trace!("ParsedDirective::new: name={:?} args={:?}", name, args);
Ok(Self {
name: name.into(),
args,
})
}
pub fn name(&self) -> &str {
&self.name
}
pub fn args(&self) -> HashMap<&str, &str> {
self.args
.iter()
.map(|(k, v)| (k.as_str(), v.as_str()))
.collect()
}
pub fn unnamed_args(&self) -> Vec<&str> {
self.args
.iter()
.filter_map(|(k, v)| {
if v.is_empty() {
Some(k.as_str())
} else {
None
}
})
.collect()
}
}
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