rst_renderer/
html.rs

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1mod elems_cats;
2mod multi;
3#[cfg(test)]
4pub mod tests;
5
6use std::io::Write;
7
8use anyhow::Error;
9
10// use crate::url::Url;
11use document_tree::{Document, HasChildren};
12
13// static FOOTNOTE_SYMBOLS: [char; 10] = ['*', '†', '‡', '§', '¶', '#', '♠', '♥', '♦', '♣'];
14
15/// Render document as HTML
16///
17/// # Errors
18/// Returns error if serialization fails
19pub fn render_html<W>(document: &Document, stream: W, standalone: bool) -> Result<(), Error>
20where
21    W: Write,
22{
23    let mut renderer = HTMLRenderer { stream, level: 0 };
24    if standalone {
25        document.render_html(&mut renderer)
26    } else {
27        document.children().render_html(&mut renderer)
28    }
29}
30
31fn escape_html(text: &str) -> String {
32    text.replace('&', "&amp;")
33        .replace('<', "&lt;")
34        .replace('>', "&gt;")
35        .replace('"', "&quot;")
36}
37
38struct HTMLRenderer<W>
39where
40    W: Write,
41{
42    stream: W,
43    level: u8,
44}
45
46trait HTMLRender {
47    fn render_html<W>(&self, renderer: &mut HTMLRenderer<W>) -> Result<(), Error>
48    where
49        W: Write;
50}
51
52static HEAD: &str = r#"<head>
53<meta charset="utf-8">
54<meta name="color-scheme" content="dark light">
55<meta name="viewport" content="width=device-width, initial-scale=1">
56<style>
57li.symbol {{ list-style-type: symbols(symbolic '*' '†' '‡' '§' '¶' '#' '♠' '♥' '♦' '♣'); }}
58</style>
59</head>"#;
60
61impl HTMLRender for Document {
62    fn render_html<W>(&self, renderer: &mut HTMLRenderer<W>) -> Result<(), Error>
63    where
64        W: Write,
65    {
66        writeln!(renderer.stream, "<!doctype html>\n<html>\n{HEAD}\n<body>")?;
67        self.children().render_html(renderer)?;
68        writeln!(renderer.stream, "</body>\n</html>")?;
69        Ok(())
70    }
71}
72
73//------------\\
74//Things to do\\
75//------------\\
76
77//TODO: prettyprint option list
78//TODO: render admonitions: Admonition, Attention, Hint, Note, Caution, Danger, Error, Important, Tip, Warning
79//TODO: properly render tables
80
81//TODO: add reference target: FootnoteReference, CitationReference, TitleReference
82//TODO: add title: Abbr, Acronym
83//TODO: convert math, set display attr
84//TODO: add id: Rubric, Target, TargetInline
rst_renderer/html.rs

rst_renderer/
html.rs
