1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
(* OptLib.def allows users to manipulate Argv/Argc.
Copyright (C) 2019-2025 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/>. *)
DEFINITION MODULE OptLib ;
FROM SYSTEM IMPORT ADDRESS ;
FROM DynamicStrings IMPORT String ;
TYPE
Option ;
(*
InitOption - constructor for Option.
*)
PROCEDURE InitOption (argc: INTEGER; argv: ADDRESS) : Option ;
(*
KillOption - deconstructor for Option.
*)
PROCEDURE KillOption (o: Option) : Option ;
(*
Dup - duplicate the option array inside, o.
Notice that this does not duplicate all the contents
(strings) of argv.
Shallow copy of the top level indices.
*)
PROCEDURE Dup (o: Option) : Option ;
(*
Slice - return a new option which has elements [low:high] from the
options, o.
*)
PROCEDURE Slice (o: Option; low, high: INTEGER) : Option ;
(*
IndexStrCmp - returns the index in the argv array which matches
string, s. -1 is returned if the string is not found.
*)
PROCEDURE IndexStrCmp (o: Option; s: String) : INTEGER ;
(*
IndexStrNCmp - returns the index in the argv array where the first
characters are matched by string, s.
-1 is returned if the string is not found.
*)
PROCEDURE IndexStrNCmp (o: Option; s: String) : INTEGER ;
(*
ConCat - returns the concatenation of a and b.
*)
PROCEDURE ConCat (a, b: Option) : Option ;
(*
GetArgv - return the argv component of option.
*)
PROCEDURE GetArgv (o: Option) : ADDRESS ;
(*
GetArgc - return the argc component of option.
*)
PROCEDURE GetArgc (o: Option) : INTEGER ;
END OptLib.
|
