markdown_parser/adapt/
json.rs

1//! json adapter module
2
3use crate::{Format, Markdown};
4
5use super::Adapter;
6
7/// JsonAdapter
8///
9/// transform markdown frontMatter into json
10#[derive(Default, Debug)]
11pub struct JsonAdapter();
12
13impl Adapter for JsonAdapter {
14    fn adapt<T>(&self, mut md: Markdown) -> crate::MarkdownResult
15    where
16        T: serde::ser::Serialize + serde::de::DeserializeOwned,
17    {
18        match md.format() {
19            Format::JSON => Ok(md),
20            Format::YAML | Format::TOML => {
21                let data = super::de_fm::<T>(&md)?;
22                md.set_front_matter(self.ser_fm(&data)?);
23                md.set_format(Format::JSON);
24                Ok(md)
25            }
26        }
27    }
28
29    fn ser_fm<T>(&self, data: &T) -> Result<String, crate::Error>
30    where
31        T: serde::Serialize,
32    {
33        let mut front_matter = serde_json::to_string_pretty(&data)?;
34
35        if front_matter.ends_with("\n") {
36            front_matter.pop();
37        }
38
39        Ok(front_matter)
40    }
41}