Check that namespace part is identifier

1 files changed, 8 insertions, 2 deletions

diff --git a/src/main/java/org/shedlang/compiler/SourceFiles.java b/src/main/java/org/shedlang/compiler/SourceFiles.java
index 451c52fa..38c3ade3 100644
--- a/src/main/java/org/shedlang/compiler/SourceFiles.java
+++ b/src/main/java/org/shedlang/compiler/SourceFiles.java
@@ -1,6 +1,9 @@
 package org.shedlang.compiler;
 
+import org.shedlang.compiler.parser.TokenType;
+import org.shedlang.compiler.parser.Tokeniser;
 import org.shedlang.compiler.types.NamespaceName;
+import org.zwobble.sourcetext.SourceText;
 
 import java.io.IOException;
 import java.nio.file.FileVisitResult;
@@ -67,8 +70,11 @@ public class SourceFiles {
         namespaceNameParts.add(fileName.substring(0, fileName.length() - shedSuffix.length()));
 
         for (var part : namespaceNameParts) {
-            if (part.contains(".")) {
-                // TODO: parse namespace part
+            var tokens = Tokeniser.tokenise(SourceText.fromString("<string>", part));
+            if (!(
+                tokens.peek().tokenType() == TokenType.IDENTIFIER &&
+                    tokens.peek(1).tokenType() == TokenType.END
+            )) {
                 return Optional.empty();
             }
         }