Detect parseable metadata formats in a PUMF directory tree

Walks the directory tree under pumf_dir and returns every recognised command-file format. Multiple formats may be present in one release; all are returned so that the caller can run all applicable parsers and merge results.

Usage

detect_formats(pumf_dir, sps_mask = NULL)

Arguments

pumf_dir

Top-level version directory (i.e. the directory that contains the extracted PUMF zip contents).

Value

A named list (possibly empty) whose elements are a subset of "lfs_csv", "cpss_csv", "sas_cards", "spss_split", and "spss_mono". Each element is either a single path string or (for spss_mono) a list(eng = ..., fra = ...) where fra is NULL when no French file is found.