/usr/share/ada/adainclude/opentoken/m3_lexer.ads is in libopentoken5-dev 6.0b-4.
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--
-- Copyright (C) 2012, 2013, 2014 Stephen Leake
-- Copyright (C) 2000 David Starner
-- Copyright (C) 1999 Christoph Karl Walter Grein
--
-- This file is part of the OpenToken package.
--
-- The OpenToken package is free software; you can redistribute it and/or
-- modify it under the terms of the GNU General Public License as published
-- by the Free Software Foundation; either version 3, or (at your option)
-- any later version. The OpenToken package 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 the OpenToken
-- package; see file GPL.txt. If not, write to the Free Software Foundation,
-- 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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.
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
-- This is a lexer for the Modula 3 language, as defined by the Modula 3
-- standard at http://www.research.digital.com/SRC/m3defn/html/complete.html.
-- It's a work in process, and is designed as the lexer for a m3toAda
-- translator.
-------------------------------------------------------------------------------
with Ada.Strings.Maps.Constants;
with Ada.Characters.Latin_1;
with OpenToken.Token.Enumerated.Analyzer;
with OpenToken.Recognizer.Keyword;
with OpenToken.Recognizer.Separator;
with OpenToken.Recognizer.Identifier;
with OpenToken.Recognizer.Graphic_Character;
with OpenToken.Recognizer.Escape_Sequence;
with OpenToken.Recognizer.Octal_Escape;
with OpenToken.Recognizer.String;
with OpenToken.Recognizer.Integer;
with OpenToken.Recognizer.Real;
with OpenToken.Recognizer.Character_Set;
with OpenToken.Recognizer.Bracketed_Comment;
with OpenToken.Recognizer.End_Of_File;
package M3_Lexer is
type M3_Token is
(
-- Keywords and reserved identifiers
ABS_T, ADDRESS_T, ADR_T, ADRSIZE_T, AND_T, ANY_T, ARRAY_T, AS_T,
BEGIN_T, BITS_T, BITSIZE_T, BOOLEAN_T, BRANDED_T, BY_T, BYTESIZE_T,
CARDINAL_T, CASE_T, CEILING_T, CHAR_T, CONST_T,
DEC_T, DISPOSE_T, DIV_T, DO_T,
ELSE_T, ELSIF_T, END_T, EVAL_T, EXCEPT_T, EXCEPTION_T, EXIT_T,
EXPORTS_T, EXTENDED_T,
FALSE_T, FINALLY_T, FIRST_T, FLOAT_T, FLOOR_T, FOR_T, FROM_T,
GENERIC_T,
IF_T, IMPORT_T, IN_T, INC_T, INTEGER_T, INTERFACE_T, ISTYPE_T,
LAST_T, LOCK_T, LONGREAL_T, LOOP_T, LOOPHOLE_T,
MAX_T, METHODS_T, MIN_T, MOD_T, MODULE_T, MUTEX_T,
NARROW_T, NEW_T, NIL_T, NOT_T, NULL_T, NUMBER_T,
OBJECT_T, OF_T, OR_T, ORD_T, OVERRIDES_T,
PROCEDURE_T,
RAISE_T, RAISES_T, READONLY_T, REAL_T, RECORD_T, REF_T, REFANY_T,
REPEAT_T, RETURN_T, REVEAL_T, ROOT_T, ROUND_T,
SET_T, SUBARRAY_T,
TEXT_T, THEN_T, TRUE_T, TRUNC_T, TRY_T, TYPE_T, TYPECASE_T, TYPECODE_T,
UNSAFE_T, UNTIL_T, UNTRACED_T,
VALUE_T, VAL_T, VAR_T,
WHILE_T, WITH_T,
-- Operators
Plus_T, Minus_T, Splat_T, Slant_T, GT_T, LT_T, GTE_T, LTE_T,
Octothorpe_T, Embrace_T, Bracelet_T, Wax_T, Wane_T, Bracket_T,
Unbracket_T, Equals_T, Semicolon_T, Spike_T, Caret_T, Dot_T,
Range_T, Assign_T, Comma_T, Ampersand_T, Colon_T, Subtype_T,
Arrow_T,
-- Literals
Integer_Number_T, -- 1
-- Based_Integer_T, -- 12_AAA0
Real_Number_T, -- 1.0, 1.1E1, 1.1E+7; not .1, 1E+7
Character_T, -- 'x' with x a graphic character except one of "'\
Escape_Sequence_T, -- '\x' with x one of tnfr"'\
Octal_Escape_T, -- '\377', '\001'
String_T, -- "Anything except " or \ and escape sequences"
-- Other tokens
Identifier_T,
Comment_T, -- (* (* nested *) anything (even several lines) *)
Whitespace_T,
End_of_File_T);
package Master_Token is new OpenToken.Token.Enumerated (M3_Token, M3_Token'First, M3_Token'Last, M3_Token'Image);
package Tokenizer is new Master_Token.Analyzer;
M3_Style_Escape_Code_Map : constant Ada.Strings.Maps.Character_Mapping :=
Ada.Strings.Maps.To_Mapping
(From => "tnfr""'\",
To => Ada.Characters.Latin_1.HT &
Ada.Characters.Latin_1.LF &
Ada.Characters.Latin_1.FF &
Ada.Characters.Latin_1.CR & '"' & ''' & '\');
M3_Whitespace : constant Ada.Strings.Maps.Character_Set := Ada.Strings.Maps.To_Set
(Ada.Characters.Latin_1.Space &
Ada.Characters.Latin_1.HT &
Ada.Characters.Latin_1.VT &
Ada.Characters.Latin_1.FF &
OpenToken.EOL_Character);
Syntax : constant Tokenizer.Syntax :=
(ABS_T => Tokenizer.Get
(OpenToken.Recognizer.Keyword.Get
("ABS", Case_Sensitive => True)),
ADDRESS_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("ADDRESS", True)),
ADR_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("ADR", True)),
ADRSIZE_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("ADRSIZE", True)),
AND_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("AND", True)),
ANY_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("ANY", True)),
ARRAY_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("ARRAY", True)),
AS_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("AS", True)),
BEGIN_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("BEGIN", True)),
BITS_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("BITS", True)),
BITSIZE_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("BITSIZE", True)),
BOOLEAN_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("BOOLEAN", True)),
BRANDED_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("BRANDED", True)),
BY_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("BY", True)),
BYTESIZE_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("BYTESIZE", True)),
CARDINAL_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("CARDINAL", True)),
CASE_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("CASE", True)),
CEILING_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("CEILING", True)),
CHAR_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("CHAR", True)),
CONST_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("CONST", True)),
DEC_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("DEC", True)),
DISPOSE_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("DISPOSE", True)),
DIV_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("DIV", True)),
DO_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("DO", True)),
ELSE_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("ELSE", True)),
ELSIF_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("ELSIF", True)),
END_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("END", True)),
EVAL_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("EVAL", True)),
EXCEPT_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("EXCEPT", True)),
EXCEPTION_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("EXCEPTION", True)),
EXIT_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("EXIT", True)),
EXPORTS_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("EXPORTS", True)),
EXTENDED_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("EXTENDED", True)),
FALSE_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("FALSE", True)),
FINALLY_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("FINALLY", True)),
FIRST_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("FIRST", True)),
FLOAT_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("FLOAT", True)),
FLOOR_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("FLOOR", True)),
FOR_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("FOR", True)),
FROM_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("FROM", True)),
GENERIC_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("GENERIC", True)),
IF_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("IF", True)),
IMPORT_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("IMPORT", True)),
IN_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("IN", True)),
INC_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("INC", True)),
INTEGER_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("INTEGER", True)),
INTERFACE_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("INTERFACE", True)),
ISTYPE_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("ISTYPE", True)),
LAST_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("LAST", True)),
LOCK_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("LOCK", True)),
LONGREAL_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("LONGREAL", True)),
LOOP_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("LOOP", True)),
LOOPHOLE_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("LOOPHOLE", True)),
MAX_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("MAX", True)),
METHODS_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("METHODS", True)),
MIN_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("MIN", True)),
MOD_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("MOD", True)),
MODULE_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("MODULE", True)),
MUTEX_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("MUTEX", True)),
NARROW_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("NARROW", True)),
NEW_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("NEW", True)),
NIL_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("NIL", True)),
NOT_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("NOT", True)),
NULL_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("NULL", True)),
NUMBER_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("NUMBER", True)),
OBJECT_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("OBJECT", True)),
OF_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("OF", True)),
OR_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("OR", True)),
ORD_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("ORD", True)),
OVERRIDES_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("OVERRIDES", True)),
PROCEDURE_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("PROCEDURE", True)),
RAISE_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("RAISE", True)),
RAISES_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("RAISES", True)),
READONLY_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("READONLY", True)),
REAL_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("REAL", True)),
RECORD_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("RECORD", True)),
REF_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("REF", True)),
REFANY_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("REFANY", True)),
REPEAT_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("REPEAT", True)),
RETURN_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("RETURN", True)),
REVEAL_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("REVEAL", True)),
ROOT_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("ROOT", True)),
ROUND_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("ROUND", True)),
SET_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("SET", True)),
SUBARRAY_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("SUBARRAY", True)),
TEXT_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("TEXT", True)),
THEN_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("THEN", True)),
TRUE_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("TRUE", True)),
TRUNC_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("TRUNC", True)),
TRY_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("TRY", True)),
TYPE_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("TYPE", True)),
TYPECASE_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("TYPECASE", True)),
TYPECODE_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("TYPECODE", True)),
UNSAFE_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("UNSAFE", True)),
UNTIL_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("UNTIL", True)),
UNTRACED_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("UNTRACED", True)),
VALUE_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("VALUE", True)),
VAL_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("VAL", True)),
VAR_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("VAR", True)),
WHILE_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("WHILE", True)),
WITH_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("WITH", True)),
Plus_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("+")),
Minus_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("-")),
Splat_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("*")),
Slant_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("/")),
GT_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("<")),
LT_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get (">")),
GTE_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("<=")),
LTE_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get (">=")),
Octothorpe_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("#")),
Embrace_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("{")),
Bracelet_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("}")),
Wax_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("(")),
Wane_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get (")")),
Bracket_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("[")),
Unbracket_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("]")),
Equals_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("=")),
Semicolon_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get (";")),
Spike_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("|")),
Caret_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("^")),
Dot_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get (".")),
Range_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("..")),
Assign_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get (":=")),
Comma_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get (",")),
Ampersand_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("&")),
Colon_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get (":")),
Subtype_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("<:")),
Arrow_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("=>")),
Integer_Number_T => Tokenizer.Get
(OpenToken.Recognizer.Integer.Get
(Allow_Underscores => False, Allow_Exponent => False,
Allow_Signs => False, Allow_Leading_Zero => False)),
Real_Number_T => Tokenizer.Get
(OpenToken.Recognizer.Real.Get
(Allow_Underscores => False, Allow_Signs => False,
Allow_Laziness => True)),
Character_T => Tokenizer.Get
(OpenToken.Recognizer.Graphic_Character.Get
(Exclude => Ada.Strings.Maps.To_Set ("'\"))),
Escape_Sequence_T => Tokenizer.Get
(OpenToken.Recognizer.Escape_Sequence.Get (Ada.Strings.Maps.To_Set ("tnfr""'\"))),
Identifier_T => Tokenizer.Get
(OpenToken.Recognizer.Identifier.Get
(Start_Chars => Ada.Strings.Maps.Constants.Letter_Set,
Body_Chars => Ada.Strings.Maps.Constants.Alphanumeric_Set)),
Comment_T => Tokenizer.Get
(OpenToken.Recognizer.Bracketed_Comment.Get
("(*", "*)",
Nested => True)),
Octal_Escape_T => Tokenizer.Get (OpenToken.Recognizer.Octal_Escape.Get),
String_T => Tokenizer.Get
(OpenToken.Recognizer.String.Get
(Escapeable => True,
Double_Delimiter => False,
Escape_Mapping => M3_Style_Escape_Code_Map)),
Whitespace_T => Tokenizer.Get (OpenToken.Recognizer.Character_Set.Get (M3_Whitespace)),
End_of_File_T => Tokenizer.Get (OpenToken.Recognizer.End_Of_File.Get));
Analyzer : constant Tokenizer.Handle := Tokenizer.Initialize (Syntax);
end M3_Lexer;
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