Meta

Context

meta.context describes a context object that makes information available to rules

meta.context

context:
schema:     The BIDS specification schema
dataset:        Properties and contents of the entire dataset
subject:        Properties and contents of the current subject

path:       Path of the current file
entities:       Entities parsed from the current filename
datatype:       Datatype of current file, for example, anat
suffix:     Suffix of current file
extension:  Extension of current file
modality:       Modality of current file, for example, MRI

sidecar:        Sidecar metadata constructed via the inheritance principle
…
associations:   Associated files, indexed by suffix, selected according to the inheritance principle
    events:
    aslcontext:
    bval:
    bvec:
    …
columns:        TSV columns, indexed by column header, values are arrays with column contents
json:       Contents of the current JSON file
gzip:       Parsed contents of gzip header
nifti_header:   Parsed contents of NIfTI header