1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 1992-2002 Free Software Foundation, Inc. --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 2, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNAT; see file COPYING. If not, write --
19 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
20 -- MA 02111-1307, USA. --
22 -- GNAT was originally developed by the GNAT team at New York University. --
23 -- Extensive contributions were provided by Ada Core Technologies Inc. --
25 ------------------------------------------------------------------------------
28 with Namet; use Namet;
29 with Osint.C; use Osint.C;
31 package body Lib.Util is
33 Max_Line : constant Natural := 2 * Hostparm.Max_Name_Length + 64;
34 Max_Buffer : constant Natural := 1000 * Max_Line;
36 Info_Buffer : String (1 .. Max_Buffer);
37 -- Info_Buffer used to prepare lines of library output
39 Info_Buffer_Len : Natural := 0;
40 -- Number of characters stored in Info_Buffer
42 Info_Buffer_Col : Natural := 1;
43 -- Column number of next character to be written.
44 -- Can be different from Info_Buffer_Len + 1
45 -- because of tab characters written by Write_Info_Tab.
51 procedure Write_Info_Char (C : Character) is
53 Info_Buffer_Len := Info_Buffer_Len + 1;
54 Info_Buffer (Info_Buffer_Len) := C;
55 Info_Buffer_Col := Info_Buffer_Col + 1;
58 --------------------------
59 -- Write_Info_Char_Code --
60 --------------------------
62 procedure Write_Info_Char_Code (Code : Char_Code) is
64 procedure Write_Info_Hex_Byte (J : Natural);
65 -- Write single hex digit
67 procedure Write_Info_Hex_Byte (J : Natural) is
68 Hexd : constant String := "0123456789abcdef";
71 Write_Info_Char (Hexd (J / 16 + 1));
72 Write_Info_Char (Hexd (J mod 16 + 1));
73 end Write_Info_Hex_Byte;
75 -- Start of processing for Write_Info_Char_Code
78 if Code in 16#00# .. 16#7F# then
79 Write_Info_Char (Character'Val (Code));
81 elsif Code in 16#80# .. 16#FF# then
82 Write_Info_Char ('U');
83 Write_Info_Hex_Byte (Natural (Code));
86 Write_Info_Char ('W');
87 Write_Info_Hex_Byte (Natural (Code / 256));
88 Write_Info_Hex_Byte (Natural (Code mod 256));
90 end Write_Info_Char_Code;
96 function Write_Info_Col return Positive is
98 return Info_Buffer_Col;
105 procedure Write_Info_EOL is
108 or else Info_Buffer_Len + Max_Line + 1 > Max_Buffer
110 Write_Info_Terminate;
112 -- Delete any trailing blanks
114 while Info_Buffer_Len > 0
115 and then Info_Buffer (Info_Buffer_Len) = ' '
117 Info_Buffer_Len := Info_Buffer_Len - 1;
120 Info_Buffer_Len := Info_Buffer_Len + 1;
121 Info_Buffer (Info_Buffer_Len) := ASCII.LF;
122 Info_Buffer_Col := 1;
126 -------------------------
127 -- Write_Info_Initiate --
128 -------------------------
130 procedure Write_Info_Initiate (Key : Character) renames Write_Info_Char;
132 ---------------------
133 -- Write_Info_Name --
134 ---------------------
136 procedure Write_Info_Name (Name : Name_Id) is
138 Get_Name_String (Name);
139 Info_Buffer (Info_Buffer_Len + 1 .. Info_Buffer_Len + Name_Len) :=
140 Name_Buffer (1 .. Name_Len);
141 Info_Buffer_Len := Info_Buffer_Len + Name_Len;
142 Info_Buffer_Col := Info_Buffer_Col + Name_Len;
149 procedure Write_Info_Nat (N : Nat) is
152 Write_Info_Nat (N / 10);
155 Write_Info_Char (Character'Val (N mod 10 + Character'Pos ('0')));
162 procedure Write_Info_Str (Val : String) is
164 Info_Buffer (Info_Buffer_Len + 1 .. Info_Buffer_Len + Val'Length)
166 Info_Buffer_Len := Info_Buffer_Len + Val'Length;
167 Info_Buffer_Col := Info_Buffer_Col + Val'Length;
174 procedure Write_Info_Tab (Col : Positive) is
178 if Col <= Info_Buffer_Col then
179 Write_Info_Str (" ");
182 Next_Tab := 8 * ((Info_Buffer_Col - 1) / 8) + 8 + 1;
183 exit when Col < Next_Tab;
184 Write_Info_Char (ASCII.HT);
185 Info_Buffer_Col := Next_Tab;
188 while Info_Buffer_Col < Col loop
189 Write_Info_Char (' ');
194 --------------------------
195 -- Write_Info_Terminate --
196 --------------------------
198 procedure Write_Info_Terminate is
200 -- Delete any trailing blanks
202 while Info_Buffer_Len > 0
203 and then Info_Buffer (Info_Buffer_Len) = ' '
205 Info_Buffer_Len := Info_Buffer_Len - 1;
208 -- Write_Library_Info adds the EOL
210 Write_Library_Info (Info_Buffer (1 .. Info_Buffer_Len));
212 Info_Buffer_Len := 0;
213 Info_Buffer_Col := 1;
215 end Write_Info_Terminate;