incrust 0.2.15

Template engine inspired by Jinja2
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
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62

use abc::{Filter, FilterResult, FilterError};
use renderer::Writer;
use {Context, ex, Arg};


#[derive(Debug)]
pub struct Escape;

impl Filter for Escape {
    #[allow(unused_variables)]
    fn filter<'s: 'a, 'a>(&'s self, context: &'a Context, value: Option<Arg<'a>>) -> FilterResult<Arg<'a>> {
        use marksman_escape::Escape as F;

        match value {
            None => Ok(None),
            Some(value) => {
                match value.try_as_string() {
                    None => {
                        let mut tmp = String::new();
                        value.render(&mut Writer(&mut tmp))?;
                        String::from_utf8(F::new(tmp.bytes()).collect())
                    },
                    Some(string) => {
                        String::from_utf8(F::new(string.as_ref().bytes()).collect())
                    }
                }
                    .map(ex).map(Some)
                    .map_err(|err| FilterError::Process(format!("{:?}", err)))
            },
        }
    }
}


#[derive(Debug)]
pub struct Unescape;

impl Filter for Unescape {
    #[allow(unused_variables)]
    fn filter<'s: 'a, 'a>(&'s self, context: &'a Context, value: Option<Arg<'a>>) -> FilterResult<Arg<'a>> {
        use marksman_escape::Unescape as F;

        match value {
            None => Ok(None),
            Some(value) => {
                match value.try_as_string() {
                    None => {
                        let mut tmp = String::new();
                        value.render(&mut Writer(&mut tmp))?;
                        String::from_utf8(F::new(tmp.bytes()).collect())
                    },
                    Some(string) => {
                        String::from_utf8(F::new(string.as_ref().bytes()).collect())
                    }
                }
                    .map(ex).map(Some)
                    .map_err(|err| FilterError::Process(format!("{:?}", err)))
            },
        }
    }
}