apple-pascal-1.3-manual

Specifying FilesThis section describes how filenames are specified and discusses thestructure of directories and how to use wildcard characters to specify a setof files stored on a disk.DirectoriesEvery formatted disk has a directory, starting in block 2. A directory is a"table of contents" of the files on that disk. A directory can contain amaximum of 77 files. When you format a disk by using the PascalFormatter, it is given an empty directory.Each time a file is stored on a disk, information about that file isautomatically entered into the disk directory. The List-directory andExtended-directory-list commands make it possible to see what is stored ina particular disk directory. These commands are explained later in thischapter.FilenamesEvery file used by Apple Pascal has its own filename. A complete filespecification or complete filename consists ofo the volume name or number followed by a colono a filename (including its suffix).For example, if you wanted to refer to a file named MYFILE. TEXT on diskMYDISK:, the complete file specification would be MYDISK:MYFILE.TEXT.Or, if MYDISK: were in volume #4, the complete filename could also be#4:MYFILE.TEXT.A local filename is distinguished from the complete file specificationbecause it does not include the volume name or volume number.A legal filename, not including the volume name, can consist of up to15 letters, numbers, and special characters, but should begin with a letter.Lowercase letters are automatically translated to uppercase and spaces areII-30Chapter 3: The Filer