add tcl parser

server/src/lsp_server.py

@@ -13,6 +13,7 @@ import sys
 import sysconfig
 import traceback
 from typing import Any, Optional, Sequence
+from parser.parser import parse_tcl, format_tree
 
 
 # **********************************************************
@@ -179,18 +180,20 @@ def _get_severity(*_codes: list[str]) -> lsp.DiagnosticSeverity:
 @LSP_SERVER.feature(lsp.TEXT_DOCUMENT_FORMATTING)
 def formatting(params: lsp.DocumentFormattingParams) -> list[lsp.TextEdit] | None:
     """LSP handler for textDocument/formatting request."""
-    # If your tool is a formatter you can use this handler to provide
-    # formatting support on save. You have to return an array of lsp.TextEdit
-    # objects, to provide your formatted results.
-
-    document = LSP_SERVER.workspace.get_document(params.text_document.uri)
-    edits = _formatting_helper(document)
-    if edits:
-        return edits
-
-    # NOTE: If you provide [] array, VS Code will clear the file of all contents.
-    # To indicate no changes to file return None.
-    return None
+    text = LSP_SERVER.workspace.get_text_document(params.text_document.uri)
+    tree, _ = parse_tcl(text)
+    if not tree:
+        return []
+    new_text = format_tree(tree)
+    return [
+        {
+            "range": {
+                "start": {"line": 0, "character": 0},
+                "end": {"line": len(text.splitlines()), "character": 0},
+            },
+            "newText": new_text,
+        }
+    ]
 
 
 def _formatting_helper(document: workspace.Document) -> list[lsp.TextEdit] | None: