Multimac 1260 User Manual download pdf (Page 61)

Macintosh.

The

C

language,

however,

has

powerful

built-in

file-handling commands that

use

the

equivalent

of

disk names,

and

many

C programmers used those techniques

or

carried over

those

habits

to

the

Mac

environment

--.

The

problem arises

in

the

way

MFS

locates

files.

It

uses

the

fonn:

disk name:file

name

Note

the

colon between disk name

and

file

name.

This

allows

MFS

to

distinguish between

the

name

of

the

disk

and

the

name

of

the

file.

MFS

ignores

folders

for

the

purpose

of

locating

files.

Under

HFS,

however,

folder names

are

interposed between

the

disk

name

and

the

file

name,

like

this:

disk

name:folderl:folder2:

folder3:file

name

Why

this

is

so

is

worth another article,

as

it

is

the

heart

of

HFS's advantage over

MFS.

What it

means,

though,

is

that

if

the

file

is

located within a folder, using "disk name:file

name"

will omit

the

folder

names

that

are

essential

to

finding

the

file

under

HFS.

So

long

as

the

file

is

not within

any

folder it can

be

found

using

the

old convention. One

thing

to

try, therefore, if your application doesn't

work

using

other

techniques,

is

to

put

it

and

all

the

files it

uses

in

the

principal

disk

directory

window

and

not in

any

folder.

What

can

you expect problems

with?

This

is

a

partial list of

programs

with

problems

running

properly

under

HFS,

as

well

as--in

some

cases--

ways

to

work

around

those

problems.

(A

longer

list

is

available

on

CompuServe.)

S12K

Mac Disk Copy won't

work,

not

even

if

not

in

any

folder.

.

......,;

Catalog Keeper

from

Dreams

of

the

Phoenix

Quick

and

Dirty

Utilities

volume

1 won't

fmd

files

in

folders.

A

spokesperson for Dreams of

the

Phoenix said that

Apple

does

not regard Finder 5.0

as

"official,"

and

that when

Apple

releases

an

"official"

Finder,

they

will

update

Catalog

Keeper.

Click-On Worksheet won't install.

Version

1.3

works,

however.

Call

T-Maker (the

number

is

on

the

original

documentation)

and

mention that

you

are

having

problems

with

HFS.

(Thanks

to

Ed

Myerson.)

ConcertWare+: Put

"Player"

and

all

the

instruments

in

the

same

folder.

You

can

put "Instrument Maker,"

"Writer"

and

the

music

anywhere.

Copy

II

Hard Disk version 4.3 won't

work.

Disklnfo

desk

accessory

won't

fmd

files

in

folders.

Edit

(the

Macintosh

Development

System

editor

used

by

many

other development

systems):

You

can't

double-cIick

on

a document

to

open

Edit unless

the

document

is

not

in

any

folder.

Opening documents

from

within Edit

will

work.

The

Transfer

menu

won't

work.

Excel:

Resume

Excel

does

not

work

unless

the

file

to

be

loaded

is

not

in

any

folder.

Fedit won't

work

unless

you

have

version

3.5

or

later.

File: The Help

file

should

be

in

the

same

folder

as

File.

I

keep

my

index

files

in

the

same

folder

as

the

files

they

index,

but

I wouldn't

be

surprised if

that

were

required

under

HFS.

FontlDA Mover

bombs

if a chosen

file

is

in

a

folder

and

its

name

is

too

long.

There

does

not

seem

to

be

a hard

'-"

and

fast

rule

as

to

what

constitutes "too long."

Font Librarian won't

work;

it

bombs

with

10=02

(address

error).

Link won't

allow

you

to

open

anything.

This

was

my

nemesis

for

a

week,

as

it

is

impossible

to

write

any

MDS

or

TML

Pascal applications without Link. Even

Consul

air's

new Linker

has

the

same problem.

Thanks

to

Don

Landing

who

(indirectly) found

the

patch

on

the

Mouse

Hole

BBS

run

by

the

excellent Macintosh programming magazine

MacTutor.

Use

Fedit

3.5

to

search

in

Link for

the

bytes

(in

hex)

41

EE

FF

BO.Replace

them

with 4E

714E

71.

This

sequence

occurs

only

once.

Also,

keep

the

.Rel

files

in

the

same

folder

as

Link.

MacSpell+

(with

Microsoft

Word):

This

program

invariably

bombs

for

me

at

around

2,000

words

into

a

document

This

may

be

a program

bug,

not

an

HFS

problem.

MacTools 4.2 won't

fmd

files

in

folders.

MacTracks won't

work

(reported

by

David

Morganstein

).

Megaroids won't

work;

it

bombs

with

ID=03

(illegal

instruction error).

Microsoft BASIC 2.0 and 2.1:

The

FILES$

command

will

list

only

those

files

in

the

disk

directory

window.

Overvue

2.0:

Even

version

2.Oc

won't

work.

A

fiX

may

be

ready

by

the

time

you

read

this.

(Reported

and

investigated

by

Ed

Myerson

and

Jim

Burger.)

Red Ryder version 6.2 won't send or

receive

files.

Get

version

7.0;

it

works

with

HFS.

RMaker

puts

the

output

.Rel

file

in

the

same

folder

as

RMaker

itself,

rather

than

in

the

source document's

folder

as

you

might expect. This

is

a particularly insidious surprise,

especially if

you

do

as

most

programmers

do

and

fail

to

delete

files

you

expect

and

want

to

be

overwritten

anyway.

Sidekick desk

accessories

that require

the

fLIes

in

the

"DataPhiles"

folder,

i.e.,

Area

Codes,

MacDialer,

QuikSheets

and Calendar Book require

you

to

insert a

floppy

disk

with

the

appropriate

file

on

it

You

can

get

them

to

work

at times

by

putting

all

the

DataPhiles

files

in

the

disk

window.

Even

then,

however,

performance

is

erratic. I strongly suggest

closing MacDialer after

you

use

it to call

up

one

phone

number,

even

if

you

do

nothing

with

that

number.

Do

not

attempt

to

add

to

the

Phone

Book

from

within

MacDialer.

A

Borland representative said that

they

are

aware of

the

problems

and

their

programmers

are

working

on

fixes.

TML Pascal: The

Interface

files

must

be

in

the

same

folder

as

the

source

file.

Word: Standard Glossary

and

the

Help

file

should

be

in

the

same

folder

as

Word itself.

If

you

are

using

version

1.05,

expect

to

use

the

key

disk.

Another note:

There

is

an

application

out

recently

called Hard

Disk

Utility

that,

among

other

things,

has

patches

to popular applications that "unprotects' those applications

or

otherwise allows

them

to

run

from

a

hard

disk.

Although

this

would

seem

to

be

the

ideal

solution for

many,

it

should

be

regarded

with

extreme

caution.

(The

legal

status

of

such

a

solution

is

somewhat

dubious

as

well.)

Patches

to

applications modify

the

instructions

to

the

application

in

order

to

work,

and

if one

of

those

patches should

be

wrong,

you

could lose

(in

order

of

most-likely-to-least-Iikely)

the

data

in

memory,

the

application itself,

the

last saved

version

of

the

data

on

the

disk, other

files

on

the

hard disk,

or

the

entire

contents

of

the

hard disk itself. Let someone

else

experiment

with

their

hard

disk. §

Washington

Apple

Pi

February

1986

59

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