add_dataframe           Adds a dataframe.
as.cldf.wide            Extracts a CLDF table as a 'wide' dataframe by
                        resolving all foreign key links
cldf                    Reads a Cross-Linguistic Data Format dataset
                        into an object.
coalesce_truth          Coalesce value to truthiness
datatype_to_type        Map csvw datatypes to R types
default_dialect         CSVW default dialect
default_schema          Create a default table schema given a csv file
                        and dialect
get_cache_dir           Returns the cache dir.
get_details             Returns a dataframe of with details on the CLDF
                        dataset in 'path'.
get_dir_size            Returns the filesize in bytes of a directory.
get_filename            Get a filename from url value in metadata
                        (handles .zip files)
get_from_zenodo         Downloads and installs a CLDF dataset from a
                        Zenodo endpoint
get_separators          Identifies the separator characters specified
                        by the CLDF metadata.
get_table_from          Extracts a single table from a CLDF dataset.
get_tablename           Convert a CLDF URL tablename to a short
                        tablename
is_github               Returns TRUE if 'url' looks like a github URL
is_url                  Returns TRUE if 'url' looks like a URL
list_cache_files        Returns a dataframe of directories in the cache
                        dir
load_clts               Returns a CLDF dataset object of the latest
                        CLTS version.
load_concepticon        Returns a CLDF dataset object of the latest
                        Concepticon version.
load_glottolog          Returns a CLDF dataset object of the latest
                        glottolog version.
make_cache_key          Returns the cachekey for the given path.
nullify                 Converts all values specified in the CLDF
                        metadata as 'null' to R's 'NA'.
print.cldf              Summarises the CLDF file
read_bib                Adds BibTeX source information into a CLDF
                        dataset
relabel                 Relabels a column in a dataset for merging.
resolve_path            Helper function to resolve the path (e.g.
                        directory or md.json file)
separate                Expands all values with separators.
set_cache_dir           Sets the cache dir for the current session.
summary.cldf            Summarises the CLDF file
