Shell: Show descriptions about syntax errors

The description contains an error message and where in the source the
error happened.

1 files changed, 4 insertions, 2 deletions

diff --git a/Shell/Shell.cpp b/Shell/Shell.cpp
index 3bfbb0c84e..b04d134774 100644
--- a/Shell/Shell.cpp
+++ b/Shell/Shell.cpp
@@ -325,8 +325,10 @@ int Shell::run_command(const StringView& cmd)
         return 0;
 
     if (command->is_syntax_error()) {
-        // FIXME: Provide descriptive messages for syntax errors.
-        fprintf(stderr, "Shell: Syntax error in command\n");
+        auto& error_node = command->syntax_error_node();
+        auto& position = error_node.position();
+        fprintf(stderr, "Shell: Syntax error in command: %s\n", error_node.error_text().characters());
+        fprintf(stderr, "Around '%.*s'\n", (int)min(position.end_offset - position.start_offset, (size_t)10), cmd.characters_without_null_termination() + position.start_offset);
         return 1;
     }