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Diffstat (limited to 'gcc/ada/lib-util.adb')
| -rw-r--r-- | gcc/ada/lib-util.adb | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/gcc/ada/lib-util.adb b/gcc/ada/lib-util.adb new file mode 100644 index 00000000000..4e3770c5bab --- /dev/null +++ b/gcc/ada/lib-util.adb @@ -0,0 +1,219 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- L I B . U T I L -- +-- -- +-- B o d y -- +-- -- +-- $Revision: 1.7 $ +-- -- +-- 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. -- +-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). -- +-- -- +------------------------------------------------------------------------------ + +with Hostparm; +with Namet; use Namet; +with Osint; use Osint; + +package body Lib.Util is + + Max_Line : constant Natural := 2 * Hostparm.Max_Name_Length + 64; + Max_Buffer : constant Natural := 1000 * Max_Line; + + Info_Buffer : String (1 .. Max_Buffer); + -- Info_Buffer used to prepare lines of library output + + Info_Buffer_Len : Natural := 0; + -- Number of characters stored in Info_Buffer + + Info_Buffer_Col : Natural := 1; + -- Column number of next character to be written. + -- Can be different from Info_Buffer_Len + 1 + -- because of tab characters written by Write_Info_Tab. + + --------------------- + -- Write_Info_Char -- + --------------------- + + procedure Write_Info_Char (C : Character) is + begin + Info_Buffer_Len := Info_Buffer_Len + 1; + Info_Buffer (Info_Buffer_Len) := C; + Info_Buffer_Col := Info_Buffer_Col + 1; + end Write_Info_Char; + + -------------------------- + -- Write_Info_Char_Code -- + -------------------------- + + procedure Write_Info_Char_Code (Code : Char_Code) is + + procedure Write_Info_Hex_Byte (J : Natural); + -- Write single hex digit + + procedure Write_Info_Hex_Byte (J : Natural) is + Hexd : String := "0123456789abcdef"; + + begin + Write_Info_Char (Hexd (J / 16 + 1)); + Write_Info_Char (Hexd (J mod 16 + 1)); + end Write_Info_Hex_Byte; + + -- Start of processing for Write_Info_Char_Code + + begin + if Code in 16#00# .. 16#7F# then + Write_Info_Char (Character'Val (Code)); + + elsif Code in 16#80# .. 16#FF# then + Write_Info_Char ('U'); + Write_Info_Hex_Byte (Natural (Code)); + + else + Write_Info_Char ('W'); + Write_Info_Hex_Byte (Natural (Code / 256)); + Write_Info_Hex_Byte (Natural (Code mod 256)); + end if; + end Write_Info_Char_Code; + + -------------------- + -- Write_Info_Col -- + -------------------- + + function Write_Info_Col return Positive is + begin + return Info_Buffer_Col; + end Write_Info_Col; + + -------------------- + -- Write_Info_EOL -- + -------------------- + + procedure Write_Info_EOL is + begin + if Hostparm.OpenVMS + or else Info_Buffer_Len + Max_Line + 1 > Max_Buffer + then + Write_Info_Terminate; + else + -- Delete any trailing blanks + + while Info_Buffer_Len > 0 + and then Info_Buffer (Info_Buffer_Len) = ' ' + loop + Info_Buffer_Len := Info_Buffer_Len - 1; + end loop; + + Info_Buffer_Len := Info_Buffer_Len + 1; + Info_Buffer (Info_Buffer_Len) := ASCII.LF; + Info_Buffer_Col := 1; + end if; + end Write_Info_EOL; + + ------------------------- + -- Write_Info_Initiate -- + ------------------------- + + procedure Write_Info_Initiate (Key : Character) renames Write_Info_Char; + + --------------------- + -- Write_Info_Name -- + --------------------- + + procedure Write_Info_Name (Name : Name_Id) is + begin + Get_Name_String (Name); + Info_Buffer (Info_Buffer_Len + 1 .. Info_Buffer_Len + Name_Len) := + Name_Buffer (1 .. Name_Len); + Info_Buffer_Len := Info_Buffer_Len + Name_Len; + Info_Buffer_Col := Info_Buffer_Col + Name_Len; + end Write_Info_Name; + + -------------------- + -- Write_Info_Nat -- + -------------------- + + procedure Write_Info_Nat (N : Nat) is + begin + if N > 9 then + Write_Info_Nat (N / 10); + end if; + + Write_Info_Char (Character'Val (N mod 10 + Character'Pos ('0'))); + end Write_Info_Nat; + + -------------------- + -- Write_Info_Str -- + -------------------- + + procedure Write_Info_Str (Val : String) is + begin + Info_Buffer (Info_Buffer_Len + 1 .. Info_Buffer_Len + Val'Length) + := Val; + Info_Buffer_Len := Info_Buffer_Len + Val'Length; + Info_Buffer_Col := Info_Buffer_Col + Val'Length; + end Write_Info_Str; + + -------------------- + -- Write_Info_Tab -- + -------------------- + + procedure Write_Info_Tab (Col : Positive) is + Next_Tab : Positive; + + begin + if Col <= Info_Buffer_Col then + Write_Info_Str (" "); + else + loop + Next_Tab := 8 * ((Info_Buffer_Col - 1) / 8) + 8 + 1; + exit when Col < Next_Tab; + Write_Info_Char (ASCII.HT); + Info_Buffer_Col := Next_Tab; + end loop; + + while Info_Buffer_Col < Col loop + Write_Info_Char (' '); + end loop; + end if; + end Write_Info_Tab; + + -------------------------- + -- Write_Info_Terminate -- + -------------------------- + + procedure Write_Info_Terminate is + begin + -- Delete any trailing blanks + + while Info_Buffer_Len > 0 + and then Info_Buffer (Info_Buffer_Len) = ' ' + loop + Info_Buffer_Len := Info_Buffer_Len - 1; + end loop; + + -- Write_Library_Info adds the EOL + + Write_Library_Info (Info_Buffer (1 .. Info_Buffer_Len)); + + Info_Buffer_Len := 0; + Info_Buffer_Col := 1; + + end Write_Info_Terminate; + +end Lib.Util; |