Fix regression when renaming commands

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Fixed
+
+- Fix regression when renaming commands ([#936](https://github.com/latex-lsp/texlab/issues/936))
+
 ## [5.10.0] - 2023-09-30
 
 ### Added

crates/rename/src/command.rs

@@ -1,5 +1,5 @@
 use base_db::{semantics::Span, DocumentData};
-use rowan::TextRange;
+use rowan::{TextRange, TextSize};
 use syntax::latex;
 
 use crate::{RenameBuilder, RenameParams};
@@ -11,7 +11,12 @@ pub(super) fn prepare_rename(params: &RenameParams) -> Option<Span> {
         .token_at_offset(params.offset)
         .find(|token| token.kind() == latex::COMMAND_NAME)?;
 
-    Some(Span::from(&token))
+    let range = token.text_range();
+    let text = token.text()[1..].into();
+    Some(Span::new(
+        text,
+        TextRange::new(range.start() + TextSize::of('\\'), range.end()),
+    ))
 }
 
 pub(super) fn rename<'a>(builder: &mut RenameBuilder) -> Option<()> {
@@ -24,7 +29,7 @@ pub(super) fn rename<'a>(builder: &mut RenameBuilder) -> Option<()> {
 
         let mut edits = Vec::new();
         for command in &data.semantics.commands {
-            if command.text == &name.text[1..] {
+            if command.text == name.text {
                 let range = TextRange::new(command.range.start(), command.range.end());
                 edits.push(range);
             }