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
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- G N A T K R --
-- --
-- B o d y --
-- --
-- Copyright (C) 1992-2001 Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 2, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING. If not, write --
-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
-- MA 02111-1307, USA. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
with Ada.Characters.Handling; use Ada.Characters.Handling;
with Ada.Command_Line; use Ada.Command_Line;
with Krunch;
with System.IO; use System.IO;
procedure Gnatkr is
Count : Natural;
Maxlen : Integer;
Exit_Program : exception;
function Get_Maximum_File_Name_Length return Integer;
pragma Import (C, Get_Maximum_File_Name_Length,
"__gnat_get_maximum_file_name_length");
begin
Count := Argument_Count;
if Count < 1 or else Count > 2 then
Put_Line ("Usage: gnatkr filename[.extension] [krunch-count]");
raise Exit_Program;
else
-- If the length (krunch-count) argument is omitted use the system
-- default if there is one, otherwise use 8.
if Count = 1 then
Maxlen := Get_Maximum_File_Name_Length;
if Maxlen = -1 then
Maxlen := 8;
end if;
else
Maxlen := 0;
for J in Argument (2)'Range loop
if Argument (2) (J) /= ' ' then
if Argument (2) (J) not in '0' .. '9' then
Put_Line ("Illegal argument for krunch-count");
raise Exit_Program;
else
Maxlen := Maxlen * 10 +
Character'Pos (Argument (2) (J)) - Character'Pos ('0');
end if;
end if;
end loop;
-- Zero means crunch only system files
if Maxlen = 0 then
Maxlen := Natural'Last;
end if;
end if;
declare
Fname : String := Argument (1);
Klen : Natural := Fname'Length;
Extp : Boolean := False;
-- True if extension is present
Ext : Natural := 0;
-- If extension is present, points to it (init to prevent warning)
begin
-- Remove .adb or .ads extension if present (recognized only if the
-- name is all lower case and contains no other instances of dots)
if Klen > 4
and then Fname (Klen - 3 .. Klen - 1) = ".ad"
and then (Fname (Klen) = 's' or else Fname (Klen) = 'b')
then
Extp := True;
for J in 1 .. Klen - 4 loop
if Is_Upper (Fname (J)) or else Fname (J) = '.' then
Extp := False;
end if;
end loop;
if Extp then
Klen := Klen - 4;
Ext := Klen + 1;
end if;
else
Extp := False;
end if;
-- Fold to lower case and replace dots by dashes
for J in 1 .. Klen loop
Fname (J) := To_Lower (Fname (J));
if Fname (J) = '.' then
Fname (J) := '-';
end if;
end loop;
Krunch (Fname, Klen, Maxlen, False);
Put (Fname (1 .. Klen));
if Extp then
Put (Fname (Ext .. Fname'Length));
end if;
New_Line;
end;
end if;
Set_Exit_Status (Success);
exception
when Exit_Program =>
Set_Exit_Status (Failure);
end Gnatkr;
|
