matreshka_league_21.0.0_0c8f4d47/source/league/matreshka-internals-regexps-engine-debug.adb

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
------------------------------------------------------------------------------
--                                                                          --
--                            Matreshka Project                             --
--                                                                          --
--         Localization, Internationalization, Globalization for Ada        --
--                                                                          --
--                        Runtime Library Component                         --
--                                                                          --
------------------------------------------------------------------------------
--                                                                          --
-- Copyright © 2010-2017 Vadim Godunko <vgodunko@gmail.com>                 --
--                                                                          --
-- Matreshka is free software;  you can  redistribute it  and/or modify  it --
-- under terms of the  GNU General Public License as published  by the Free --
-- Software  Foundation;  either version 2,  or (at your option)  any later --
-- version.  Matreshka  is distributed in the hope that it will be  useful, --
-- but   WITHOUT  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 Matreshka; see file COPYING. --
-- If not, write  to  the  Free Software Foundation,  51  Franklin  Street, --
-- Fifth Floor, Boston, MA 02110-1301, USA.                                 --
--                                                                          --
-- As a special exception,  if other files  instantiate  generics from this --
-- unit, or you link  this unit with other files  to produce an executable, --
-- this  unit  does not  by itself cause  the resulting  executable  to  be --
-- covered  by the  GNU  General  Public  License.  This exception does not --
-- however invalidate  any other reasons why  the executable file  might be --
-- covered by the  GNU Public License.                                      --
--                                                                          --
------------------------------------------------------------------------------
--  $Revision: 5776 $ $Date: 2017-09-15 16:26:40 +0300 (Пт, 15 сен 2017) $
------------------------------------------------------------------------------
with Ada.Characters.Latin_1;
with Ada.Strings.Fixed;
with Ada.Strings.Unbounded;

package body Matreshka.Internals.Regexps.Engine.Debug is

   use Matreshka.Internals.Utf16;

   type State is record
      PC : Positive;
      SP : Utf16_String_Index;
      SI : Positive;
      SS : Regexps.Slice_Array (0 .. 9);
   end record;

   ----------
   -- Dump --
   ----------

   function Dump (Program : Engine.Program) return String is

      use Ada.Characters.Latin_1;
      use Ada.Strings;
      use Ada.Strings.Fixed;
      use Ada.Strings.Unbounded;

      Result : Unbounded_String;

   begin
      for J in Program.Instructions'Range loop
         declare
            Address_Image  : constant String := Trim (Integer'Image (J), Both);
            Address_Buffer : String (1 .. 4) := (others => ' ');
            Instruction    : constant Engine.Instruction
              := Program.Instructions (J);

         begin
            Address_Buffer (4 - Address_Image'Length + 1 .. 4) :=
              Address_Image;
            Append (Result, Address_Buffer);
            Append (Result, ' ');

            case Instruction.Kind is
               when None =>
                  Append (Result, "nop");

               when I_Terminate =>
                  Append
                    (Result,
                     "terminate ["
                       & Trim (Integer'Image (Instruction.Next), Both)
                       & "]");

               when Split =>
                  Append
                    (Result,
                     "split ["
                       & Trim (Integer'Image (Instruction.Next), Both)
                       & "], ["
                       & Trim (Integer'Image (Instruction.Another), Both)
                       & "]");

               when Any_Code_Point =>
                  Append
                    (Result,
                     "char is any ["
                       & Trim (Integer'Image (Instruction.Next), Both)
                       & "]");

               when Code_Point =>
                  Append
                    (Result,
                     "char is "
                       & Wide_Wide_Character'Image
                          (Wide_Wide_Character'Val (Instruction.Code))
                       & " ["
                       & Trim (Integer'Image (Instruction.Next), Both)
                       & "]");

               when Code_Range =>
                  Append
                    (Result,
                     "char in "
                       & Wide_Wide_Character'Image
                          (Wide_Wide_Character'Val (Instruction.Low))
                       & " .. "
                       & Wide_Wide_Character'Image
                          (Wide_Wide_Character'Val (Instruction.High)));

                  if Instruction.Negate then
                     Append (Result, " {negate}");
                  end if;

                  Append
                    (Result,
                     " ["
                       & Trim (Integer'Image (Instruction.Next), Both)
                       & "]");

               when I_Property =>
                  case Instruction.Value.Kind is
                     when None =>
                        raise Program_Error;

                     when General_Category =>
                        Append (Result, "char General_Category is");

                        for K in Instruction.Value.GC_Flags'Range loop
                           if Instruction.Value.GC_Flags (K) then
                              Append
                                (Result,
                                 ' '
                                   & Matreshka.Internals.Unicode.Ucd.
                                       General_Category'Image
                                        (K));
                           end if;
                        end loop;

                     when Binary =>
                        Append
                          (Result,
                           "char is "
                             & Matreshka.Internals.Unicode.Ucd.
                                 Boolean_Properties'Image
                                  (Instruction.Value.Property));
                  end case;

                  if Instruction.Negative then
                     Append (Result, " {negative}");
                  end if;

               when Match =>
                  Append (Result, "match");

               when Save =>
                  Append
                    (Result,
                     "save $"
                       & Trim (Integer'Image (Instruction.Slot), Both)
                       & " ");

                  if Instruction.Start then
                     Append (Result, "{begin}");

                  else
                     Append (Result, "{end}");
                  end if;

                  Append
                    (Result,
                     " ["
                       & Trim (Integer'Image (Instruction.Next), Both)
                       & "]");

               when I_Anchor =>
                  Append (Result, "anchor");

                  if Instruction.Start_Of_Line then
                     Append (Result, " {start of line}");
                  end if;

                  if Instruction.End_Of_Line then
                     Append (Result, " {end of line}");
                  end if;

                  Append
                    (Result,
                     " ["
                       & Trim (Integer'Image (Instruction.Next), Both)
                       & "]");
            end case;

            Append (Result, LF);
         end;
      end loop;

      return To_String (Result);
   end Dump;

end Matreshka.Internals.Regexps.Engine.Debug;