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use super::{label_name, selection_range};
use crate::range::RangeExt;
use crate::symbol::{LatexSymbol, LatexSymbolKind};
use crate::syntax::*;
use crate::workspace::*;
use lsp_types::Range;
pub fn symbols(view: &DocumentView, tree: &LatexSyntaxTree) -> Vec<LatexSymbol> {
let mut symbols = Vec::new();
for environment in &tree.env.environments {
if environment.left.is_enum() {
symbols.push(make_symbol(view, tree, environment));
}
}
symbols
}
fn make_symbol(
view: &DocumentView,
tree: &LatexSyntaxTree,
enumeration: &LatexEnvironment,
) -> LatexSymbol {
let name = titlelize(enumeration.left.name().unwrap().text());
let items: Vec<_> = tree
.structure
.items
.iter()
.filter(|item| tree.is_enumeration_item(enumeration, item))
.collect();
let mut children = Vec::new();
for i in 0..items.len() {
let start = items[i].start();
let end = items
.get(i + 1)
.map(|item| item.start())
.unwrap_or_else(|| enumeration.right.start());
let range = Range::new(start, end);
let label = find_item_label(tree, range);
let number = items[i].name().or_else(|| {
label
.as_ref()
.and_then(|label| OutlineContext::find_number(view, label))
});
let name = number.unwrap_or_else(|| "Item".into());
children.push(LatexSymbol {
name,
label: label_name(label),
kind: LatexSymbolKind::EnumerationItem,
deprecated: false,
full_range: range,
selection_range: selection_range(items[i].range(), label),
children: Vec::new(),
});
}
LatexSymbol {
name,
label: None,
kind: LatexSymbolKind::Enumeration,
deprecated: false,
full_range: enumeration.range(),
selection_range: enumeration.range(),
children,
}
}
fn find_item_label(tree: &LatexSyntaxTree, item_range: Range) -> Option<&LatexLabel> {
let label = tree.find_label_by_range(item_range)?;
if tree
.env
.environments
.iter()
.filter(|env| item_range.contains(env.start()))
.all(|env| !env.range().contains(label.start()))
{
Some(label)
} else {
None
}
}
|