1------------------------------------------------------------------------------ 2-- -- 3-- GNAT COMPILER COMPONENTS -- 4-- -- 5-- L I B . U T I L -- 6-- -- 7-- B o d y -- 8-- -- 9-- Copyright (C) 1992-2019, Free Software Foundation, Inc. -- 10-- -- 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 3, 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 COPYING3. If not, go to -- 19-- http://www.gnu.org/licenses for a complete copy of the license. -- 20-- -- 21-- GNAT was originally developed by the GNAT team at New York University. -- 22-- Extensive contributions were provided by Ada Core Technologies Inc. -- 23-- -- 24------------------------------------------------------------------------------ 25 26with Hostparm; 27with Osint.C; use Osint.C; 28with Stringt; use Stringt; 29 30package body Lib.Util is 31 32 Max_Line : constant Natural := 2 * Hostparm.Max_Name_Length + 64; 33 Max_Buffer : constant Natural := 1000 * Max_Line; 34 35 Info_Buffer : String (1 .. Max_Buffer); 36 -- Info_Buffer used to prepare lines of library output 37 38 Info_Buffer_Len : Natural := 0; 39 -- Number of characters stored in Info_Buffer 40 41 Info_Buffer_Col : Natural := 1; 42 -- Column number of next character to be written. 43 -- Can be different from Info_Buffer_Len + 1 because of tab characters 44 -- written by Write_Info_Tab. 45 46 procedure Write_Info_Hex_Byte (J : Natural); 47 -- Place two hex digits representing the value J (which is in the range 48 -- 0-255) in Info_Buffer, incrementing Info_Buffer_Len by 2. The digits 49 -- are output using lower case letters. 50 51 --------------------- 52 -- Write_Info_Char -- 53 --------------------- 54 55 procedure Write_Info_Char (C : Character) is 56 begin 57 Info_Buffer_Len := Info_Buffer_Len + 1; 58 Info_Buffer (Info_Buffer_Len) := C; 59 Info_Buffer_Col := Info_Buffer_Col + 1; 60 end Write_Info_Char; 61 62 -------------------------- 63 -- Write_Info_Char_Code -- 64 -------------------------- 65 66 procedure Write_Info_Char_Code (Code : Char_Code) is 67 begin 68 -- 00 .. 7F 69 70 if Code <= 16#7F# then 71 Write_Info_Char (Character'Val (Code)); 72 73 -- 80 .. FF 74 75 elsif Code <= 16#FF# then 76 Write_Info_Char ('U'); 77 Write_Info_Hex_Byte (Natural (Code)); 78 79 -- 0100 .. FFFF 80 81 else 82 Write_Info_Char ('W'); 83 Write_Info_Hex_Byte (Natural (Code / 256)); 84 Write_Info_Hex_Byte (Natural (Code mod 256)); 85 end if; 86 end Write_Info_Char_Code; 87 88 -------------------- 89 -- Write_Info_Col -- 90 -------------------- 91 92 function Write_Info_Col return Positive is 93 begin 94 return Info_Buffer_Col; 95 end Write_Info_Col; 96 97 -------------------- 98 -- Write_Info_EOL -- 99 -------------------- 100 101 procedure Write_Info_EOL is 102 begin 103 if Info_Buffer_Len + Max_Line + 1 > Max_Buffer then 104 Write_Info_Terminate; 105 106 else 107 -- Delete any trailing blanks 108 109 while Info_Buffer_Len > 0 110 and then Info_Buffer (Info_Buffer_Len) = ' ' 111 loop 112 Info_Buffer_Len := Info_Buffer_Len - 1; 113 end loop; 114 115 Info_Buffer_Len := Info_Buffer_Len + 1; 116 Info_Buffer (Info_Buffer_Len) := ASCII.LF; 117 Info_Buffer_Col := 1; 118 end if; 119 end Write_Info_EOL; 120 121 ------------------------- 122 -- Write_Info_Hex_Byte -- 123 ------------------------- 124 125 procedure Write_Info_Hex_Byte (J : Natural) is 126 Hexd : constant array (0 .. 15) of Character := "0123456789abcdef"; 127 begin 128 Write_Info_Char (Hexd (J / 16)); 129 Write_Info_Char (Hexd (J mod 16)); 130 end Write_Info_Hex_Byte; 131 132 ------------------------- 133 -- Write_Info_Initiate -- 134 ------------------------- 135 136 procedure Write_Info_Initiate (Key : Character) renames Write_Info_Char; 137 138 -------------------- 139 -- Write_Info_Int -- 140 -------------------- 141 142 procedure Write_Info_Int (N : Int) is 143 begin 144 if N >= 0 then 145 Write_Info_Nat (N); 146 147 -- Negative numbers, use Write_Info_Uint to avoid problems with largest 148 -- negative number. 149 150 else 151 Write_Info_Uint (UI_From_Int (N)); 152 end if; 153 end Write_Info_Int; 154 155 --------------------- 156 -- Write_Info_Name -- 157 --------------------- 158 159 procedure Write_Info_Name (Name : Name_Id) is 160 begin 161 Get_Name_String (Name); 162 Info_Buffer (Info_Buffer_Len + 1 .. Info_Buffer_Len + Name_Len) := 163 Name_Buffer (1 .. Name_Len); 164 Info_Buffer_Len := Info_Buffer_Len + Name_Len; 165 Info_Buffer_Col := Info_Buffer_Col + Name_Len; 166 end Write_Info_Name; 167 168 procedure Write_Info_Name (Name : File_Name_Type) is 169 begin 170 Write_Info_Name (Name_Id (Name)); 171 end Write_Info_Name; 172 173 procedure Write_Info_Name (Name : Unit_Name_Type) is 174 begin 175 Write_Info_Name (Name_Id (Name)); 176 end Write_Info_Name; 177 178 ----------------------------------- 179 -- Write_Info_Name_May_Be_Quoted -- 180 ----------------------------------- 181 182 procedure Write_Info_Name_May_Be_Quoted (Name : File_Name_Type) is 183 Quoted : Boolean := False; 184 Cur : Positive; 185 186 begin 187 Get_Name_String (Name); 188 189 -- The file/path name is quoted only if it includes spaces 190 191 for J in 1 .. Name_Len loop 192 if Name_Buffer (J) = ' ' then 193 Quoted := True; 194 exit; 195 end if; 196 end loop; 197 198 -- Deal with quoting string if needed 199 200 if Quoted then 201 Insert_Str_In_Name_Buffer ("""", 1); 202 Add_Char_To_Name_Buffer ('"'); 203 204 -- Any character '"' is doubled 205 206 Cur := 2; 207 while Cur < Name_Len loop 208 if Name_Buffer (Cur) = '"' then 209 Insert_Str_In_Name_Buffer ("""", Cur); 210 Cur := Cur + 2; 211 else 212 Cur := Cur + 1; 213 end if; 214 end loop; 215 end if; 216 217 Info_Buffer (Info_Buffer_Len + 1 .. Info_Buffer_Len + Name_Len) := 218 Name_Buffer (1 .. Name_Len); 219 Info_Buffer_Len := Info_Buffer_Len + Name_Len; 220 Info_Buffer_Col := Info_Buffer_Col + Name_Len; 221 end Write_Info_Name_May_Be_Quoted; 222 223 -------------------- 224 -- Write_Info_Nat -- 225 -------------------- 226 227 procedure Write_Info_Nat (N : Nat) is 228 begin 229 if N > 9 then 230 Write_Info_Nat (N / 10); 231 end if; 232 233 Write_Info_Char (Character'Val (N mod 10 + Character'Pos ('0'))); 234 end Write_Info_Nat; 235 236 --------------------- 237 -- Write_Info_Slit -- 238 --------------------- 239 240 procedure Write_Info_Slit (S : String_Id) is 241 C : Character; 242 243 begin 244 Write_Info_Str (""""); 245 246 for J in 1 .. String_Length (S) loop 247 C := Get_Character (Get_String_Char (S, J)); 248 249 if C in Character'Val (16#20#) .. Character'Val (16#7E#) 250 and then C /= '{' 251 then 252 Write_Info_Char (C); 253 254 if C = '"' then 255 Write_Info_Char (C); 256 end if; 257 258 else 259 Write_Info_Char ('{'); 260 Write_Info_Hex_Byte (Character'Pos (C)); 261 Write_Info_Char ('}'); 262 end if; 263 end loop; 264 265 Write_Info_Char ('"'); 266 end Write_Info_Slit; 267 268 -------------------- 269 -- Write_Info_Str -- 270 -------------------- 271 272 procedure Write_Info_Str (Val : String) is 273 begin 274 Info_Buffer (Info_Buffer_Len + 1 .. Info_Buffer_Len + Val'Length) 275 := Val; 276 Info_Buffer_Len := Info_Buffer_Len + Val'Length; 277 Info_Buffer_Col := Info_Buffer_Col + Val'Length; 278 end Write_Info_Str; 279 280 -------------------- 281 -- Write_Info_Tab -- 282 -------------------- 283 284 procedure Write_Info_Tab (Col : Positive) is 285 Next_Tab : Positive; 286 287 begin 288 if Col <= Info_Buffer_Col then 289 Write_Info_Str (" "); 290 else 291 loop 292 Next_Tab := 8 * ((Info_Buffer_Col - 1) / 8) + 8 + 1; 293 exit when Col < Next_Tab; 294 Write_Info_Char (ASCII.HT); 295 Info_Buffer_Col := Next_Tab; 296 end loop; 297 298 while Info_Buffer_Col < Col loop 299 Write_Info_Char (' '); 300 end loop; 301 end if; 302 end Write_Info_Tab; 303 304 -------------------------- 305 -- Write_Info_Terminate -- 306 -------------------------- 307 308 procedure Write_Info_Terminate is 309 begin 310 -- Delete any trailing blanks 311 312 while Info_Buffer_Len > 0 313 and then Info_Buffer (Info_Buffer_Len) = ' ' 314 loop 315 Info_Buffer_Len := Info_Buffer_Len - 1; 316 end loop; 317 318 -- Write_Library_Info adds the EOL 319 320 Write_Library_Info (Info_Buffer (1 .. Info_Buffer_Len)); 321 322 Info_Buffer_Len := 0; 323 Info_Buffer_Col := 1; 324 end Write_Info_Terminate; 325 326 --------------------- 327 -- Write_Info_Uint -- 328 --------------------- 329 330 procedure Write_Info_Uint (N : Uint) is 331 begin 332 UI_Image (N, Decimal); 333 Write_Info_Str (UI_Image_Buffer (1 .. UI_Image_Length)); 334 end Write_Info_Uint; 335 336end Lib.Util; 337