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path: root/support/texlab/src/symbol/latex_section/float.rs
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use super::{label_name, selection_range};
use crate::{
    feature::DocumentView,
    outline::{OutlineCaptionKind, OutlineContext},
    symbol::types::{LatexSymbol, LatexSymbolKind},
    syntax::{latex, SyntaxNode},
};

pub fn symbols(view: &DocumentView, table: &latex::SymbolTable) -> Vec<LatexSymbol> {
    table
        .captions
        .iter()
        .filter_map(|caption| make_symbol(view, table, *caption))
        .collect()
}

fn make_symbol(
    view: &DocumentView,
    table: &latex::SymbolTable,
    caption: latex::Caption,
) -> Option<LatexSymbol> {
    let env = table
        .environments
        .iter()
        .find(|env| table.is_direct_child(**env, table[caption.parent].start()))?;

    let text =
        table.print_group_content(caption.parent, latex::GroupKind::Group, caption.arg_index)?;

    let kind = env
        .left
        .name(&table)
        .map(latex::Token::text)
        .and_then(OutlineCaptionKind::parse)?;

    let label = table.find_label_by_environment(*env);
    let number = label.and_then(|label| OutlineContext::find_number(view, table, *label));

    let name = match &number {
        Some(number) => format!("{} {}: {}", kind.as_str(), number, text),
        None => format!("{}: {}", kind.as_str(), text),
    };

    let symbol = LatexSymbol {
        name,
        label: label_name(table, label),
        kind: match kind {
            OutlineCaptionKind::Figure => LatexSymbolKind::Figure,
            OutlineCaptionKind::Table => LatexSymbolKind::Table,
            OutlineCaptionKind::Listing => LatexSymbolKind::Listing,
            OutlineCaptionKind::Algorithm => LatexSymbolKind::Algorithm,
        },
        deprecated: false,
        full_range: env.range(&table),
        selection_range: selection_range(table, env.range(&table), label),
        children: Vec::new(),
    };
    Some(symbol)
}