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(* Conversions.mod provides a Logitech-3.0 compatible library.
Copyright (C) 2004-2025 Free Software Foundation, Inc.
Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>.
This file is part of GNU Modula-2.
GNU Modula-2 is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Modula-2 is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. *)
IMPLEMENTATION MODULE Conversions ;
FROM DynamicStrings IMPORT String, InitString, KillString, CopyOut ;
FROM StringConvert IMPORT IntegerToString, StringToInteger,
StringToLongInteger, LongIntegerToString,
StringToCardinal, CardinalToString ;
(*
ConvertOctal - converts a CARDINAL, num, into an octal string
and right justifies the string. It adds
spaces rather than '0' to pad out the string
to len characters.
If the length of str is < num then the number is
truncated on the right.
*)
PROCEDURE ConvertOctal (num, len: CARDINAL; VAR str: ARRAY OF CHAR) ;
VAR
s: String ;
BEGIN
s := CardinalToString(num, len, ' ', 8, FALSE) ;
CopyOut(str, s) ;
s := KillString(s)
END ConvertOctal ;
PROCEDURE ConvertHex (num, len: CARDINAL; VAR str: ARRAY OF CHAR) ;
VAR
s: String ;
BEGIN
s := CardinalToString(num, len, ' ', 16, TRUE) ;
CopyOut(str, s) ;
s := KillString(s)
END ConvertHex ;
PROCEDURE ConvertCardinal (num, len: CARDINAL; VAR str: ARRAY OF CHAR) ;
VAR
s: String ;
BEGIN
s := CardinalToString(num, len, ' ', 10, FALSE) ;
CopyOut(str, s) ;
s := KillString(s)
END ConvertCardinal ;
(*
The INTEGER counterparts will add a '-' if, num, is <0
*)
PROCEDURE ConvertInteger (num: INTEGER; len: CARDINAL;
VAR str: ARRAY OF CHAR) ;
VAR
s: String ;
BEGIN
IF num<0
THEN
s := IntegerToString(num, len, ' ', TRUE, 10, FALSE)
ELSE
s := IntegerToString(num, len, ' ', FALSE, 10, FALSE)
END ;
CopyOut(str, s) ;
s := KillString(s)
END ConvertInteger ;
PROCEDURE ConvertLongInt (num: LONGINT; len: CARDINAL; VAR str: ARRAY OF CHAR) ;
VAR
s: String ;
BEGIN
IF num<0
THEN
s := LongIntegerToString(num, len, ' ', TRUE, 10, FALSE)
ELSE
s := LongIntegerToString(num, len, ' ', FALSE, 10, FALSE)
END ;
CopyOut(str, s) ;
s := KillString(s)
END ConvertLongInt ;
PROCEDURE ConvertShortInt (num: SHORTINT; len: CARDINAL; VAR str: ARRAY OF CHAR) ;
VAR
s: String ;
BEGIN
IF num<0
THEN
s := IntegerToString(VAL(INTEGER, num), len, ' ', TRUE, 10, FALSE)
ELSE
s := IntegerToString(VAL(INTEGER, num), len, ' ', FALSE, 10, FALSE)
END ;
CopyOut(str, s) ;
s := KillString(s)
END ConvertShortInt ;
END Conversions.
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