Number: 2214

Date: 20-Sep-84 16':10':41

Submitter: Dering.pasa

Source: (Eric Schoen, SDR) Schoen@Sumex-aim, Dering.pasa

Subject: Manual says Interlisp takes Tenex file names but DIRECTORY fails on form like FOO.BAZ;0

Assigned To: 

Attn: vanMelle

Status: Open


Problem Type: Documentation

Impact: Annoying


Frequency: Everytime

Priority: Hopefully

System: Operating System

Subsystem: Generic File Operations

Machine: 1108


Lisp Version: 21-Jun-84 10':50':28

Source Files: 

Microcode Version: 5124

Memory Size: 7168

File Server: 

Server Software Version: 

Disposition: '
["Sannella.PA" "21-Sep-84 15':49':00" Status':(New->Open) System':(->Operating% System) Subsystem':(->Generic% File% Operations)]'
["masinter" "24-Sep-84 17':52':16" Source': Subject': Attn': Problem% Type':(Bug->Documentation)]'
["Sannella.PA" "25-Sep-84 12':45':04" Attn': Description':]

Description: '
There''s an annoying little bug in DIRECTORY which prevents directory requests of the form FOO.BAZ;0 from ever working.  DIRECTORY (and its subfunctions \GENERATFILES and DMATCH) assume the device-dependent routine to generate'
file names will return a superset of the file group you specify.  DMATCH is then used to filter the possible superset.  Unfortunately, DMATCH and its subfunction DMATCH1 attempt to do a context-free match of each returned filename.  This will fail when a field of the filename which was not * in'
the requested filegroup does not match that field in the filegroup.  This is fine, except that file names of the form FOO.BAZ;0, FOO.BAZ;-1, etc on Tenex, Tops-20, and VMS file servers imply specific version number handling which will never match the 0, -1, etc.'
I believe the fix is to make DMATCH smarter about the syntax of file names on various operating systems (note that DIR *.*;0 to the local DSK on an 11xx also fails).  The manual says that Interlisp-D file names are just like Tenex filenmes; if you tell me that this case is an exception, I''ll stop complaining.'
Date': 24 Sep 84 17':51 PDT'
Subject': AR#2214, "DIRECTORY fails on form like FOO.BAZ;0"'
To': vanMelle, Dering.pasa, Schoen@Sumex-aim'
cc': LispSupport, Jellinek'
(I cc': Eric because he''s a friend & soon to be consultant)':'
I fixed around the AR a bit': I marked it Attn': vanMelle since Bill worked explicitly on directory enumeration. It was my recollection that we do *not* support version numbers 0, -1, -2 as in Tenex, but that directory enumeration of "null version field" means "highest version". I changed Problem-Type to Documentation and the subject to "Manual says Interlisp takes Tenex file names but DIRECTORY fails on form like FOO.BAZ;0." Including this in the release notes then reduces the AR to be part of "Include documentation from release notes into Reference Manual".'


Test Case: 

Edit-By: Sannella.PA

Edit-Date: 25-Sep-84 12':45':04