*************************************************************************
Copyright (C) Olivetti 1989
All Rights reserved
Use and copy of this software and preparation of derivative works based
upon this software are permitted to any person, provided this same
copyright notice and the following Olivetti warranty disclaimer are
included in any copy of the software or any modification thereof or
derivative work therefrom made by any person.
This software is made available AS IS and Olivetti disclaims all
warranties with respect to this software, whether expressed or implied
under any law, including all implied warranties of merchantibility and
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*************************************************************************
Copyright (C) 1994, Digital Equipment Corp.
M3Extension
provides operations on filename extensions.
INTERFACE M3Extension;
TYPE
T =
{Int, (* interface source *)
IntG, (* generic interface source *)
PInt, (* pickled interface (AST) *)
PIntR, (* pickled interface, reduced AST *)
Mod, (* module source *)
ModG, (* generic module source *)
PMod, (* pickled module (AST) *)
PModR, (* pickled module, reduced AST *)
IObj, (* (interface) object *)
MObj, (* (module) object *)
Exe, (* executable *)
IC, (* (interface) C intermediate *)
MC, (* (module) C intermediate *)
IAsm, (* (interface) assembly code *)
MAsm, (* (module) assembly code *)
IX, (* (interface) pre-linker input *)
MX, (* (module) pre-linker input *)
ObjLib, (* object library *)
ObjLibX, (* pre-linker input library *)
Tmp, (* temporary file *)
Null}; (* no extension *)
TSet = SET OF T;
There are a number of extensions commonly used by an M3 system, captured
by the enumeration type T
. Not all the extension types may be utilised
by a given implementation. The actual characters used to denote a T
may vary between implementations.
CONST
Ints = TSet{T.Int, T.IntG};
Mods = TSet{T.Mod, T.ModG};
All = TSet{FIRST(T)..LAST(T)};
PROCEDURE ToText(t: T): TEXT;
Returns the TEXT
corresponding to t
PROCEDURE FromText(text: TEXT; VAR t: T): BOOLEAN;
If text
is a valid Modula-3 extension, set t
and return TRUE
.
Otherwise, leave t
unchanged and return FALSE
.
PROCEDURE Extend(name: TEXT; t: T): TEXT;
If t = T.Null
, then return Pathname.Base(name)
else
return Pathname.Join(NIL, Pathname.Base(name), ToText(t))
.
PROCEDURE Has(name: TEXT; VAR t: T): BOOLEAN;
Returns FromText(Pathname.LastExt(name), t)
.
END M3Extension.