1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
use comrak::html::ChildRendering;
use comrak::{create_formatter, nodes::NodeValue};
use std::io::Write;
create_formatter!(CustomFormatter<usize>, {
NodeValue::Emph => |context, entering| {
context.user += 1;
if entering {
context.write_all(b"<i>")?;
} else {
context.write_all(b"</i>")?;
}
},
NodeValue::Strong => |context, entering| {
context.user += 1;
context.write_all(if entering { b"<b>" } else { b"</b>" })?;
},
NodeValue::Image(ref nl) => |context, node, entering| {
assert!(node.data.borrow().sourcepos == (3, 1, 3, 18).into());
if entering {
context.write_all(nl.url.to_uppercase().as_bytes())?;
}
return Ok(ChildRendering::Skip);
},
});
fn main() {
use comrak::{parse_document, Arena, Options};
let options = Options::default();
let arena = Arena::new();
let doc = parse_document(
&arena,
"_Hello_, **world**.\n\n",
&options,
);
let mut buf: Vec<u8> = vec![];
let converted_count = CustomFormatter::format_document(doc, &options, &mut buf, 0).unwrap();
assert_eq!(
std::str::from_utf8(&buf).unwrap(),
"<p><i>Hello</i>, <b>world</b>.</p>\n<p>/IMG.PNG</p>\n"
);
assert_eq!(converted_count, 4);
}
|
