sita 0.1.0

Sita: static site generator (SSG) for Markdown and HTML
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
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138

//! Markdown matter using TOML front matter.

use std::any::Any;
use once_cell::sync::Lazy;
use regex::Regex;
use crate::errors::*;
use crate::matter::matter_parser_trait::MatterParserTrait;
use crate::state::state_with_toml::StateWithTOML;

#[derive(Debug)]
pub struct MatterParserWithTOML {
}

impl MatterParserTrait<StateWithTOML> for MatterParserWithTOML {

    fn as_any(&self) -> &dyn Any {
        self
    }

    /// Example:
    /// 
    /// ```
    /// # use ::indoc::indoc;
    /// let mix_text = indoc!{r#"
    ///     +++
    ///     alpha = "bravo"
    ///     charlie = "delta"
    ///     +++
    ///     echo
    ///     foxtrot
    /// "#};
    /// let content_text, matter_text = parse_mix_text_to_content_text_and_matter_text(mix_text).unwrap();
    /// assert_eq!(content_text, indoc!{r#"
    ///     echo
    ///     foxtrot
    /// "#};
    /// assert_eq!(matter_text, indoc!{r#"
    ///     alpha = "bravo"
    ///     charlie = "delta"
    /// "#};
    /// ```
    #[allow(dead_code)]
    fn parse_mix_text_to_content_text_and_matter_text(&self, mix_text: &str) -> Result<(String, String)> {
        trace!("MatterParserWithTOML::parse_mix_text_to_content_text_and_matter_text");
        let captures = REGEX.captures(mix_text)
        .chain_err(|| "captures")?;
        Ok((
            String::from(captures.name("content").unwrap().as_str()),
            String::from(captures.name("matter").unwrap().as_str()),
        ))
    }

    /// Example:
    /// 
    /// ```
    /// # use ::indoc::indoc;
    /// let matter_text = indoc!{r#"
    ///     alpha = "bravo"
    ///     charlie = "delta"
    /// "#};
    /// let state = parse_matter_text_to_state(mix_text).unwrap();
    /// assert_eq!(state.get("alpha"), String::from("bravo"));
    /// assert_eq!(state.get("charlie"), String::from("delta"));
    /// ```
    #[allow(dead_code)]
    fn parse_matter_text_to_state(&self, matter_text: &str) -> Result<StateWithTOML> {
        trace!("MatterParserWithTOML::parse_matter_text_to_state");
        let toml = matter_text.parse::<::toml::Value>()
        .chain_err(|| "matter_text.parse::<::toml::Value>()")?;
        match toml {
            ::toml::Value::Table(table) => Ok(table),
            _ => bail!("TOML isn't a map"),
        }
    }

}

pub static REGEX: Lazy<Regex> = Lazy::new(|| {
    Regex::new(r"(?m)(?s)\A\+\+\+\n(?P<matter>.*?\n)\+\+\+\n(?P<content>.*)\z").unwrap()
});

#[cfg(test)]
mod tests {
    use super::*;
    use ::indoc::indoc;

    type MatterParserX = MatterParserWithTOML;

    const MIX_TEXT: &str = indoc!{r#"
        +++
        alpha = "bravo"
        charlie = "delta"
        +++
        echo
        foxtrot
    "#};

    const CONTENT_TEXT: &str = indoc!{r#"
        echo
        foxtrot
    "#};

    const MATTER_TEXT: &str = indoc!{r#"
        alpha = "bravo"
        charlie = "delta"
    "#};

    fn expect_state() -> StateWithTOML {
        toml::from_str(indoc!{r#"
            alpha = "bravo"
            charlie = "delta"
        "#}).unwrap()
    }

    #[test]
    fn test_parse_mix_text_to_content_text_and_matter_text_x_present() {
        let result = MatterParserX{}.parse_mix_text_to_content_text_and_matter_text(MIX_TEXT);
        assert!(result.is_ok());
        let (content_text, matter_text) = result.unwrap();
        assert_eq!(content_text, CONTENT_TEXT);
        assert_eq!(matter_text, MATTER_TEXT);
    }

    #[test]
    fn test_parse_mix_text_to_content_text_and_matter_text_x_absent() {
        let result = MatterParserX{}.parse_mix_text_to_content_text_and_matter_text(CONTENT_TEXT);
        assert!(result.is_err());
    }

    #[test]
    fn test_parse_matter_text_to_state() {
        let result = MatterParserX{}.parse_matter_text_to_state(MATTER_TEXT);
        assert!(result.is_ok());
        let state = result.unwrap();
        assert_eq!(state, expect_state());
    }

}