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"FileName" (Interpreter Type)

A file that exists on disk.

Details

Allowed Forms

  • A path to an existing file, either wrapped in File or not.

Restriction Specifications

  • Restricted["FileName",format]a file of a given format
    Restricted["FileName",format,max]a file of a given format and size smaller than max bytes
    Restricted["FileName",format,{min,max}]a file of a given format and size between min and max bytes
  • The bounds min and max can also be expressed as quantities in the appropriate unit (e.g. Quantity[1,"Megabytes"]).

Interpretation

Examples

Basic Examples  (1)

Check if a file exists:

Wolfram Language code: path = File["ExampleData/ocelot.jpg"]
Wolfram Language code: Interpreter["FileName"][path]

Restrict to a file format:

Wolfram Language code: Interpreter[Restricted["FileName", "JPEG"]][path]

Restrict to all image files:

Wolfram Language code: Interpreter[Restricted["FileName", "Image"]][path]

Restrict to a given size:

Wolfram Language code: Interpreter[Restricted["FileName", Automatic, 300]][path]