plantuml_parser/dsl/token/
title.rs

1use crate::dsl::token::shared::{Comment, Delimiter};
2use crate::{ParseContainer, ParseResult, wr, wr2};
3use nom::Parser;
4use nom::bytes::complete::tag_no_case;
5
6/// A token sequence that is around the title keyword. (like `"title EXAMPLE TITLE"`.)
7///
8/// # Examples
9///
10/// ```
11/// use plantuml_parser::{TitleToken, ParseContainer};
12///
13/// # fn main() -> anyhow::Result<()> {
14/// let input = "title  EXAMPLE TITLE   "; /// The last "   " is rest parts
15/// let (rest, (raws, token)) = TitleToken::parse(input.into())?;
16/// let combined_raw: ParseContainer = raws.into();
17/// assert_eq!(rest, "   ");
18/// assert_eq!(combined_raw, "title  EXAMPLE TITLE");
19/// assert_eq!(token.title(), "EXAMPLE TITLE");
20/// # Ok(())
21/// # }
22/// ```
23#[derive(Clone, Debug)]
24pub struct TitleToken {
25    title: Comment,
26    delimiter: Delimiter,
27}
28
29impl TitleToken {
30    /// Tries to parse [`TitleToken`]. (e.g. `"title EXAMPLE TITLE"`.)
31    pub fn parse(input: ParseContainer) -> ParseResult<Self> {
32        let (rest, (title_tag, (delimiter_raw, delimiter), (title_raw, title))) = (
33            wr!(tag_no_case("title")),
34            wr2!(Delimiter::parse),
35            wr2!(Comment::parse),
36        )
37            .parse(input)?;
38
39        let ret0 = ParseContainer::from(vec![title_tag, delimiter_raw, title_raw]);
40        let ret1 = Self { title, delimiter };
41
42        Ok((rest, (ret0, ret1)))
43    }
44
45    /// Returns title's text
46    pub fn title(&self) -> &str {
47        self.title.as_str()
48    }
49
50    /// Returns delimiter
51    pub fn delimiter(&self) -> Option<&str> {
52        self.delimiter.delimiter()
53    }
54}
55
56#[cfg(test)]
57mod tests {
58    use super::*;
59
60    #[test]
61    fn test_parse() -> anyhow::Result<()> {
62        let testdata = "title EXAMPLE TITLE";
63        let (rest, (parsed, token)) = TitleToken::parse(testdata.into())?;
64        assert_eq!(rest, "");
65        assert_eq!(testdata, parsed);
66        assert_eq!("EXAMPLE TITLE", token.title());
67        assert_eq!(None, token.delimiter());
68
69        Ok(())
70    }
71
72    #[test]
73    fn test_parse_with_trailing_spaces() -> anyhow::Result<()> {
74        let testdata = "title EXAMPLE \t TITLE  \t";
75        let (rest, (parsed, token)) = TitleToken::parse(testdata.into())?;
76        assert_eq!(rest, "  \t");
77        assert_eq!("title EXAMPLE \t TITLE", parsed);
78        assert_eq!("EXAMPLE \t TITLE", token.title());
79        assert_eq!(None, token.delimiter());
80
81        Ok(())
82    }
83
84    #[test]
85    fn test_parse_case_insensitive() -> anyhow::Result<()> {
86        let testdata = "Title EXAMPLE TITLE";
87        let (rest, (parsed, token)) = TitleToken::parse(testdata.into())?;
88        assert_eq!(rest, "");
89        assert_eq!(testdata, parsed);
90        assert_eq!("EXAMPLE TITLE", token.title());
91        assert_eq!(None, token.delimiter());
92
93        let testdata = "TITLE EXAMPLE TITLE";
94        let (rest, (parsed, token)) = TitleToken::parse(testdata.into())?;
95        assert_eq!(rest, "");
96        assert_eq!(testdata, parsed);
97        assert_eq!("EXAMPLE TITLE", token.title());
98        assert_eq!(None, token.delimiter());
99
100        let testdata = "tiTle EXAMPLE TITLE";
101        let (rest, (parsed, token)) = TitleToken::parse(testdata.into())?;
102        assert_eq!(rest, "");
103        assert_eq!(testdata, parsed);
104        assert_eq!("EXAMPLE TITLE", token.title());
105        assert_eq!(None, token.delimiter());
106
107        Ok(())
108    }
109
110    #[test]
111    fn test_parse_with_delimiter() -> anyhow::Result<()> {
112        let testdata = "title : EXAMPLE TITLE";
113        let (rest, (parsed, token)) = TitleToken::parse(testdata.into())?;
114        assert_eq!(rest, "");
115        assert_eq!(testdata, parsed);
116        assert_eq!("EXAMPLE TITLE", token.title());
117        assert_eq!(Some(":"), token.delimiter());
118
119        let testdata = "title: \tEXAMPLE TITLE";
120        let (rest, (parsed, token)) = TitleToken::parse(testdata.into())?;
121        assert_eq!(rest, "");
122        assert_eq!(testdata, parsed);
123        assert_eq!("EXAMPLE TITLE", token.title());
124        assert_eq!(Some(":"), token.delimiter());
125
126        let testdata = "title \t:EXAMPLE TITLE";
127        let (rest, (parsed, token)) = TitleToken::parse(testdata.into())?;
128        assert_eq!(rest, "");
129        assert_eq!(testdata, parsed);
130        assert_eq!("EXAMPLE TITLE", token.title());
131        assert_eq!(Some(":"), token.delimiter());
132
133        let testdata = "title:EXAMPLE TITLE";
134        let (rest, (parsed, token)) = TitleToken::parse(testdata.into())?;
135        assert_eq!(rest, "");
136        assert_eq!(testdata, parsed);
137        assert_eq!("EXAMPLE TITLE", token.title());
138        assert_eq!(Some(":"), token.delimiter());
139
140        Ok(())
141    }
142}
plantuml_parser/dsl/token/title.rs

plantuml_parser/dsl/token/
title.rs
