Reads the indent from .editorconfig, or from the caller

All 10 scenarios hold

The formatter carries no indent setting of its own. It asks EditorConfig, the convention the surrounding project already states. The search starts in the directory of the source file and walks up. The indent_style and indent_size it finds become the style and the size the Indentation feature applies.

The formatter resolves the style and the size one at a time. A file that sets only one of them leaves the caller's default in force for the other. Anything else the search cannot use leaves both defaults in force. A broken .editorconfig never fails a build.

Each row writes the file it shows into a temporary project with one Java source file. An indent takes the form style:size.