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-rw-r--r--support/texlab/src/completion/bibtex/field_name.rs176
1 files changed, 176 insertions, 0 deletions
diff --git a/support/texlab/src/completion/bibtex/field_name.rs b/support/texlab/src/completion/bibtex/field_name.rs
new file mode 100644
index 0000000000..abddad4f5a
--- /dev/null
+++ b/support/texlab/src/completion/bibtex/field_name.rs
@@ -0,0 +1,176 @@
+use crate::completion::factory;
+use crate::range::RangeExt;
+use crate::syntax::*;
+use crate::workspace::*;
+use futures_boxed::boxed;
+use lsp_types::{CompletionItem, CompletionParams, Range, TextEdit};
+
+#[derive(Debug, PartialEq, Eq, Clone, Copy)]
+pub struct BibtexFieldNameCompletionProvider;
+
+impl FeatureProvider for BibtexFieldNameCompletionProvider {
+ type Params = CompletionParams;
+ type Output = Vec<CompletionItem>;
+
+ #[boxed]
+ async fn execute<'a>(&'a self, request: &'a FeatureRequest<Self::Params>) -> Self::Output {
+ if let SyntaxTree::Bibtex(tree) = &request.document().tree {
+ let position = request.params.text_document_position.position;
+ match tree.find(position).last() {
+ Some(BibtexNode::Field(field)) => {
+ if field.name.range().contains(position) {
+ return make_items(request, field.name.range());
+ }
+ }
+ Some(BibtexNode::Entry(entry)) => {
+ if !entry.is_comment() && !entry.ty.range().contains(position) {
+ let edit_range = Range::new(position, position);
+ if let Some(key) = &entry.key {
+ if !key.range().contains(position) {
+ return make_items(request, edit_range);
+ }
+ } else {
+ return make_items(request, edit_range);
+ }
+ }
+ }
+ _ => {}
+ }
+ }
+ Vec::new()
+ }
+}
+
+fn make_items(
+ request: &FeatureRequest<CompletionParams>,
+ edit_range: Range,
+) -> Vec<CompletionItem> {
+ let mut items = Vec::new();
+ for field in &LANGUAGE_DATA.fields {
+ let text_edit = TextEdit::new(edit_range, (&field.name).into());
+ let item = factory::field_name(request, field, text_edit);
+ items.push(item);
+ }
+ items
+}
+
+#[cfg(test)]
+mod tests {
+ use super::*;
+ use lsp_types::Position;
+
+ #[test]
+ fn test_inside_first_field() {
+ let items = test_feature(
+ BibtexFieldNameCompletionProvider,
+ FeatureSpec {
+ files: vec![FeatureSpec::file("foo.bib", "@article{foo,\nbar}")],
+ main_file: "foo.bib",
+ position: Position::new(1, 1),
+ ..FeatureSpec::default()
+ },
+ );
+ assert!(!items.is_empty());
+ assert_eq!(
+ items[0].text_edit.as_ref().map(|edit| edit.range),
+ Some(Range::new_simple(1, 0, 1, 3))
+ );
+ }
+
+ #[test]
+ fn test_inside_second_field() {
+ let items = test_feature(
+ BibtexFieldNameCompletionProvider,
+ FeatureSpec {
+ files: vec![FeatureSpec::file(
+ "foo.bib",
+ "@article{foo, bar = {baz}, qux}",
+ )],
+ main_file: "foo.bib",
+ position: Position::new(0, 27),
+ ..FeatureSpec::default()
+ },
+ );
+ assert!(!items.is_empty());
+ assert_eq!(
+ items[0].text_edit.as_ref().map(|edit| edit.range),
+ Some(Range::new_simple(0, 27, 0, 30))
+ );
+ }
+
+ #[test]
+ fn test_inside_entry() {
+ let items = test_feature(
+ BibtexFieldNameCompletionProvider,
+ FeatureSpec {
+ files: vec![FeatureSpec::file("foo.bib", "@article{foo, \n}")],
+ main_file: "foo.bib",
+ position: Position::new(1, 0),
+ ..FeatureSpec::default()
+ },
+ );
+ assert!(!items.is_empty());
+ assert_eq!(
+ items[0].text_edit.as_ref().map(|edit| edit.range),
+ Some(Range::new_simple(1, 0, 1, 0))
+ );
+ }
+
+ #[test]
+ fn test_inside_content() {
+ let items = test_feature(
+ BibtexFieldNameCompletionProvider,
+ FeatureSpec {
+ files: vec![FeatureSpec::file("foo.bib", "@article{foo,\nbar = {baz}}")],
+ main_file: "foo.bib",
+ position: Position::new(1, 7),
+ ..FeatureSpec::default()
+ },
+ );
+ assert!(items.is_empty());
+ }
+
+ #[test]
+ fn test_inside_entry_type() {
+ let items = test_feature(
+ BibtexFieldNameCompletionProvider,
+ FeatureSpec {
+ files: vec![FeatureSpec::file("foo.bib", "@article{foo,}")],
+ main_file: "foo.bib",
+ position: Position::new(0, 3),
+ ..FeatureSpec::default()
+ },
+ );
+ assert!(items.is_empty());
+ }
+
+ // TODO: Improve behavior of this provider
+ //
+ // #[test]
+ // fn test_after_equals_sign() {
+ // let items = test_feature(
+ // BibtexFieldNameCompletionProvider,
+ // FeatureSpec {
+ // files: vec![FeatureSpec::file("foo.bib", "@article{foo, bar = \n}")],
+ // main_file: "foo.bib",
+ // position: Position::new(1, 0),
+ // ..FeatureSpec::default()
+ // },
+ // );
+ // assert!(items.is_empty());
+ // }
+
+ #[test]
+ fn test_inside_latex() {
+ let items = test_feature(
+ BibtexFieldNameCompletionProvider,
+ FeatureSpec {
+ files: vec![FeatureSpec::file("foo.tex", "@article{foo,}")],
+ main_file: "foo.tex",
+ position: Position::new(0, 3),
+ ..FeatureSpec::default()
+ },
+ );
+ assert!(items.is_empty());
+ }
+}