1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
10 -- Copyright (C) 1992-2001 Free Software Foundation, Inc. --
12 -- GNAT is free software; you can redistribute it and/or modify it under --
13 -- terms of the GNU General Public License as published by the Free Soft- --
14 -- ware Foundation; either version 2, or (at your option) any later ver- --
15 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
16 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
17 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
18 -- for more details. You should have received a copy of the GNU General --
19 -- Public License distributed with GNAT; see file COPYING. If not, write --
20 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
21 -- MA 02111-1307, USA. --
23 -- GNAT was originally developed by the GNAT team at New York University. --
24 -- Extensive contributions were provided by Ada Core Technologies Inc. --
26 ------------------------------------------------------------------------------
28 with Ada.Characters.Handling; use Ada.Characters.Handling;
29 with Ada.Command_Line; use Ada.Command_Line;
31 with System.IO; use System.IO;
37 Exit_Program : exception;
39 function Get_Maximum_File_Name_Length return Integer;
40 pragma Import (C, Get_Maximum_File_Name_Length,
41 "__gnat_get_maximum_file_name_length");
44 Count := Argument_Count;
46 if Count < 1 or else Count > 2 then
47 Put_Line ("Usage: gnatkr filename[.extension] [krunch-count]");
51 -- If the length (krunch-count) argument is omitted use the system
52 -- default if there is one, otherwise use 8.
55 Maxlen := Get_Maximum_File_Name_Length;
64 for J in Argument (2)'Range loop
65 if Argument (2) (J) /= ' ' then
66 if Argument (2) (J) not in '0' .. '9' then
67 Put_Line ("Illegal argument for krunch-count");
70 Maxlen := Maxlen * 10 +
71 Character'Pos (Argument (2) (J)) - Character'Pos ('0');
76 -- Zero means crunch only system files
79 Maxlen := Natural'Last;
85 Fname : String := Argument (1);
86 Klen : Natural := Fname'Length;
88 Extp : Boolean := False;
89 -- True if extension is present
92 -- If extension is present, points to it (init to prevent warning)
95 -- Remove .adb or .ads extension if present (recognized only if the
96 -- name is all lower case and contains no other instances of dots)
99 and then Fname (Klen - 3 .. Klen - 1) = ".ad"
100 and then (Fname (Klen) = 's' or else Fname (Klen) = 'b')
104 for J in 1 .. Klen - 4 loop
105 if Is_Upper (Fname (J)) or else Fname (J) = '.' then
119 -- Fold to lower case and replace dots by dashes
121 for J in 1 .. Klen loop
122 Fname (J) := To_Lower (Fname (J));
124 if Fname (J) = '.' then
129 Krunch (Fname, Klen, Maxlen, False);
131 Put (Fname (1 .. Klen));
134 Put (Fname (Ext .. Fname'Length));
141 Set_Exit_Status (Success);
145 Set_Exit_Status (Failure);