texlab 4.3.2

LaTeX Language Server
Documentation 
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
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160

use std::{fmt, sync::Arc};

use derive_more::From;
use lsp_types::Url;

use crate::{
    line_index::LineIndex,
    parser::{parse_bibtex, parse_build_log, parse_latex},
    syntax::{
        latex::{self, LatexAnalyzerContext},
        BuildLog,
    },
    DocumentLanguage, Environment,
};

#[derive(Debug, Clone)]
pub struct LatexDocumentData {
    pub green: rowan::GreenNode,
    pub extras: Arc<latex::Extras>,
}

#[derive(Debug, Clone)]
pub struct BibtexDocumentData {
    pub green: rowan::GreenNode,
}

#[derive(Debug, Clone, From)]
pub enum DocumentData {
    Latex(Box<LatexDocumentData>),
    Bibtex(BibtexDocumentData),
    BuildLog(Arc<BuildLog>),
}

impl DocumentData {
    #[must_use]
    pub fn language(&self) -> DocumentLanguage {
        match self {
            Self::Latex(_) => DocumentLanguage::Latex,
            Self::Bibtex(_) => DocumentLanguage::Bibtex,
            Self::BuildLog(_) => DocumentLanguage::BuildLog,
        }
    }

    #[must_use]
    pub fn as_latex(&self) -> Option<&LatexDocumentData> {
        if let Self::Latex(data) = self {
            Some(data)
        } else {
            None
        }
    }

    #[must_use]
    pub fn as_bibtex(&self) -> Option<&BibtexDocumentData> {
        if let Self::Bibtex(data) = self {
            Some(data)
        } else {
            None
        }
    }

    #[must_use]
    pub fn as_build_log(&self) -> Option<&BuildLog> {
        if let Self::BuildLog(v) = self {
            Some(v)
        } else {
            None
        }
    }
}

#[derive(Clone)]
pub struct Document {
    uri: Arc<Url>,
    text: Arc<String>,
    line_index: Arc<LineIndex>,
    data: DocumentData,
}

impl fmt::Debug for Document {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "{}", self.uri)
    }
}

impl Document {
    pub fn uri(&self) -> &Arc<Url> {
        &self.uri
    }

    pub fn text(&self) -> &str {
        &self.text
    }

    pub fn line_index(&self) -> &LineIndex {
        &self.line_index
    }

    pub fn data(&self) -> &DocumentData {
        &self.data
    }

    pub fn can_be_compiled(&self) -> bool {
        self.data.language() == DocumentLanguage::Latex
            && !self.uri.as_str().ends_with(".sty")
            && !self.uri.as_str().ends_with(".cls")
            && !self.uri.as_str().ends_with(".aux")
            && !self.uri.as_str().ends_with(".lco")
    }

    #[must_use]
    pub fn parse(
        environment: &Environment,
        uri: Arc<Url>,
        text: Arc<String>,
        language: DocumentLanguage,
    ) -> Self {
        let line_index = Arc::new(LineIndex::new(&text));
        let data = match language {
            DocumentLanguage::Latex => {
                let green = parse_latex(&text);
                let root = latex::SyntaxNode::new_root(green.clone());

                let base_uri = match &environment.options.root_directory {
                    Some(root_dir) => {
                        let root_dir = environment.current_directory.join(&root_dir);
                        Url::from_directory_path(root_dir)
                            .map_or_else(|()| Arc::clone(&uri), Arc::new)
                    }
                    None => Arc::clone(&uri),
                };

                let mut context = LatexAnalyzerContext {
                    environment,
                    extras: latex::Extras::default(),
                    document_uri: Arc::clone(&uri),
                    base_uri,
                };
                latex::analyze(&mut context, &root);
                let extras = Arc::new(context.extras);
                DocumentData::Latex(Box::new(LatexDocumentData { green, extras }))
            }
            DocumentLanguage::Bibtex => {
                let green = parse_bibtex(&text);
                DocumentData::Bibtex(BibtexDocumentData { green })
            }
            DocumentLanguage::BuildLog => {
                let data = Arc::new(parse_build_log(&text));
                DocumentData::BuildLog(data)
            }
        };

        Self {
            uri,
            text,
            line_index,
            data,
        }
    }
}