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Diffstat (limited to 'gcc/ada/gnatkr.adb')
| -rw-r--r-- | gcc/ada/gnatkr.adb | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/gcc/ada/gnatkr.adb b/gcc/ada/gnatkr.adb new file mode 100644 index 000000000..1df692e7b --- /dev/null +++ b/gcc/ada/gnatkr.adb @@ -0,0 +1,137 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- G N A T K R -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 1992-2007, 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 3, 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 COPYING3. If not, go to -- +-- http://www.gnu.org/licenses for a complete copy of the license. -- +-- -- +-- 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 Gnatvsn; +with Krunch; +with System.IO; use System.IO; + +procedure Gnatkr is + pragma Ident (Gnatvsn.Gnat_Static_Version_String); + + 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 extension if present (an extension is defined as the + -- section of the file name after the last dot in the name. If + -- there is no dot in the name, then + -- name is all lower case and contains no other instances of dots) + + for J in reverse 1 .. Klen loop + if Fname (J) = '.' then + Extp := True; + Ext := J; + Klen := J - 1; + exit; + end if; + end loop; + + -- 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; |