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215 | ------------------------------------------------------------------------------
-- --
-- Matreshka Project --
-- --
-- Localization, Internationalization, Globalization for Ada --
-- --
-- Runtime Library Component --
-- --
------------------------------------------------------------------------------
-- --
-- Copyright © 2010 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: 1055 $ $Date: 2010-09-20 17:50:56 +0400 (Пн, 20 сен 2010) $
------------------------------------------------------------------------------
with Ada.Characters.Latin_1;
with Ada.Strings.Unbounded;
with Ada.Strings.Fixed;
package body Matreshka.Internals.Regexps.Compiler.Debug is
----------
-- Dump --
----------
function Dump (Pattern : not null Shared_Pattern_Access) return String is
use Ada.Characters.Latin_1;
use Ada.Strings;
use Ada.Strings.Fixed;
use Ada.Strings.Unbounded;
procedure Dump (N : Positive);
Indent : Positive := 1;
Offset : constant := 3;
Line : Unbounded_String;
Result : Unbounded_String;
procedure Dump (N : Positive) is
begin
Append (Result, Line);
Append (Result, LF);
Line := Indent * ' ';
Append
(Line,
Trim (Integer'Image (N), Both)
& ' '
& Node_Kinds'Image (Pattern.AST (N).Kind));
case Pattern.AST (N).Kind is
when N_None =>
null;
when N_Match_Any =>
null;
when N_Subexpression =>
if Pattern.AST (N).Capture then
Append (Line, " {capture}");
end if;
Indent := Indent + Offset;
Dump (Get_Expression (Pattern, N));
Indent := Indent - Offset;
when N_Match_Code | N_Member_Code =>
Append
(Line,
' '
& Wide_Wide_Character'Image
(Wide_Wide_Character'Val (Pattern.AST (N).Code)));
when N_Match_Property | N_Member_Property =>
case Pattern.AST (N).Value.Kind is
when None =>
null;
when General_Category =>
Append (Line, " General_Category is");
for J in Pattern.AST (N).Value.GC_Flags'Range loop
if Pattern.AST (N).Value.GC_Flags (J) then
Append
(Line,
' '
& Matreshka.Internals.Unicode.Ucd.
General_Category'Image
(J));
end if;
end loop;
when Binary =>
Append
(Line,
' '
& Matreshka.Internals.Unicode.Ucd.
Boolean_Properties'Image
(Pattern.AST (N).Value.Property));
end case;
if Pattern.AST (N).Negative then
Append (Line, " {negative}");
end if;
when N_Member_Range =>
Append
(Line,
' '
& Wide_Wide_Character'Image
(Wide_Wide_Character'Val (Pattern.AST (N).Low))
& " .. "
& Wide_Wide_Character'Image
(Wide_Wide_Character'Val (Pattern.AST (N).High)));
when N_Character_Class =>
if Pattern.AST (N).Negated then
Append (Line, " {negated}");
end if;
Indent := Indent + Offset;
Dump (Get_Members (Pattern, N));
Indent := Indent - Offset;
when N_Multiplicity =>
Append
(Line,
" ["
& Trim (Natural'Image (Pattern.AST (N).Lower), Both)
& "..");
if Pattern.AST (N).Upper /= Natural'Last then
Append
(Line,
Trim (Natural'Image (Pattern.AST (N).Upper), Both) & ']');
else
Append (Line, "Infinity]");
end if;
if Pattern.AST (N).Greedy then
Append (Line, " {greedy}");
else
Append (Line, " {lazy}");
end if;
Indent := Indent + Offset;
Dump (Get_Expression (Pattern, N));
Indent := Indent - Offset;
when N_Alternation =>
Indent := Indent + Offset;
Append (Result, Line);
Append (Result, LF);
Line := Indent * ' ';
Append (Line, "first");
Indent := Indent + Offset;
Dump (Get_Preferred (Pattern, N));
Indent := Indent - Offset;
Indent := Indent - Offset;
Indent := Indent + Offset;
Append (Result, Line);
Append (Result, LF);
Line := Indent * ' ';
Append (Line, "second");
Indent := Indent + Offset;
Dump (Get_Fallback (Pattern, N));
Indent := Indent - Offset;
Indent := Indent - Offset;
when N_Anchor =>
if Pattern.AST (N).Start_Of_Line then
Append (Line, " {start of line}");
end if;
if Pattern.AST (N).End_Of_Line then
Append (Line, " {end of line}");
end if;
end case;
if Pattern.AST (N).Next /= 0 then
Dump (Pattern.AST (N).Next);
end if;
end Dump;
begin
Dump (Pattern.List (Pattern.Start).Head);
Append (Result, Line);
Append (Result, LF);
return To_String (Result);
end Dump;
end Matreshka.Internals.Regexps.Compiler.Debug;
|