/usr/share/ada/adainclude/opentoken/java_lexer.ads is in libopentoken5-dev 6.0b-4.
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--
-- Copyright (C) 2012, 2013, 2014 Stephen Leake
-- 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.
-------------------------------------------------------------------------------
with Ada.Strings.Maps.Constants;
with OpenToken.Recognizer.Based_Integer_Java_Style;
with OpenToken.Recognizer.Bracketed_Comment;
with OpenToken.Recognizer.Character_Set;
with OpenToken.Recognizer.End_Of_File;
with OpenToken.Recognizer.Escape_Sequence;
with OpenToken.Recognizer.Graphic_Character;
with OpenToken.Recognizer.Identifier;
with OpenToken.Recognizer.Integer;
with OpenToken.Recognizer.Keyword;
with OpenToken.Recognizer.Line_Comment;
with OpenToken.Recognizer.Octal_Escape;
with OpenToken.Recognizer.Real;
with OpenToken.Recognizer.Separator;
with OpenToken.Recognizer.String;
with OpenToken.Token.Enumerated.Analyzer;
package Java_Lexer is
---------------------------------------------------------------------
-- This ia a lexical analyser for the Java language.
-- In the current preliminary state, not all tokens are recognized.
--
-- Missing:
-- Numerals with suffixes
-- integer suffixes l L
-- float suffixes d D f F
--
-- There is another lexer for the Ada and Java languages at:
-- <http://home.T-Online.de/home/Christ-Usch.Grein/Ada/Lexer.html>
---------------------------------------------------------------------
type Java_Token is
(
-- Keywords JRM 3.9
Abstract_T,
Boolean_T, Break_T, Byte_T,
Case_T, Catch_T, Char_T, Class_T, Const_T, Continue_T,
Default_T, Do_T, Double_T,
Else_T, Extends_T,
Final_T, Finally_T, Float_T, For_T,
Goto_T,
If_T, Implements_T, Import_T, InstanceOf_T, Int_T, Interface_T,
Long_T,
Native_T, New_T,
Package_T, Private_T, Protected_T, Public_T,
Return_T,
Short_T, Static_T, Super_T, Switch_T, Synchronized_T,
This_T, Throw_T, Throws_T, Transient_T, Try_T,
Void_T, Volatile_T,
While_T,
-- Separators JRM 3.11
-- ( ) { } [ ] ; , .
-- Operators JRM 3.12
-- = > < ! ~ ? :
-- == <= >= != && || ++ --
-- + - * / & | ^ % << >> >>>
-- += -= *= /= &= |= ^= %= <<= >>= >>>=
Colon_T, Comma_T, Dot_T, Semicolon_T, -- : , . ;
LeftBrace_T, RightBrace_T, -- { }
LeftBracket_T, RightBracket_T, -- [ ]
Left_Parenthesis_T, Right_Parenthesis_T, -- ( )
And_T, Or_T, -- & |
ShortCutAnd_T, ShortCutOr_T, -- && ||
Assignment_T, Conditional_T, -- = ?
Equal_T, NotEqual_T, -- == !=
Greater_Equal_T, Less_Equal_T, -- >= <=
Greater_Than_T, Less_Than_T, -- > <
Complement_T, Not_T, Xor_T, -- ~ ! ^
Plus_T, Minus_T, Times_T, Divide_T, Remainder_T, -- + - * / %
Increment_T, Decrement_T, -- ++ --
LeftShift_T, RightShift_T, UnsignedRightShift_T, -- << >> >>>
PlusAssign_T, MinusAssign_T, -- += -=
TimesAssign_T, DivideAssign_T, RemainderAssign_T, -- *= /= %=
AndAssign_T, OrAssign_T, XorAssign_T, -- &= |= ^=
LeftShiftAssign_T, RightShiftAssign_T, -- <<= >>=
UnsignedRightShiftAssign_T, -- >>>=
-- Literals (JRM 3.10) (all Java reals may use lazy forms,
-- i.e. the whole or decimal part may be missing)
Null_T, False_T, True_T,
Integer_T, -- 1
Based_Integer_T, -- 07, 0xF
-- LongInteger_T, -- 1L
-- BasedLongInteger_T, -- 07L, 0xFL
Real_T, -- 1.0, 1., .1, 1E+7
-- FloatNumber_T, -- 1.0E+10F
-- DoubleNumber_T, -- 1.0E+10D
Character_T, -- 'x' with x any graphic character except one of "'\
Escape_Sequence_T, -- '\x' with x one of btnfr"'\
Octal_Escape_T, -- '\377'
String_T, -- "Any characters except " or \ and escape sequences"
-- Other tokens
Identifier_T,
EndOfLineComment_T, -- // to end of line
EmbeddedComment_T, -- /* anything (even several lines) */
Whitespace_T,
-- Syntax error
-- Bad_Token_T,
--
End_of_File_T);
package Master_Java_Token is new OpenToken.Token.Enumerated
(Java_Token, Java_Token'First, Java_Token'Last, Java_Token'Image);
package Tokenizer is new Master_Java_Token.Analyzer;
Syntax : constant Tokenizer.Syntax :=
(Abstract_T => Tokenizer.Get
(OpenToken.Recognizer.Keyword.Get
("abstract", Case_Sensitive => True)),
Boolean_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("boolean", True)),
Break_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("break", True)),
Byte_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("byte", True)),
Case_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("case", True)),
Catch_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("catch", True)),
Char_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("char", True)),
Class_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("class", True)),
Const_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("const", True)),
Continue_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("continue", True)),
Default_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("default", True)),
Do_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("do", True)),
Double_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("double", True)),
Else_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("else", True)),
Extends_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("extends", True)),
Final_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("final", True)),
Finally_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("finally", True)),
Float_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("float", True)),
For_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("for", True)),
Goto_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("goto", True)),
If_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("if", True)),
Implements_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("implements", True)),
Import_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("import", True)),
InstanceOf_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("instanceof", True)),
Int_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("int", True)),
Interface_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("interface", True)),
Long_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("long", True)),
Native_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("native", True)),
New_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("new", True)),
Package_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("package", True)),
Private_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("private", True)),
Protected_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("protected", True)),
Public_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("public", True)),
Return_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("return", True)),
Short_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("short", True)),
Static_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("static", True)),
Super_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("super", True)),
Switch_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("switch", True)),
Synchronized_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("synchronized", True)),
This_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("this", True)),
Throw_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("throw", True)),
Throws_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("throws", True)),
Transient_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("transient", True)),
Try_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("try", True)),
Void_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("void", True)),
Volatile_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("volatile", True)),
While_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("while", True)),
Colon_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get (":")),
Comma_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get (",")),
Dot_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get (".")),
Semicolon_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get (";")),
LeftBrace_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("{")),
RightBrace_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("}")),
LeftBracket_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("[")),
RightBracket_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("]")),
Left_Parenthesis_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("(")),
Right_Parenthesis_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get (")")),
And_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("&")),
Or_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("|")),
ShortCutAnd_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("&&")),
ShortCutOr_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("||")),
Assignment_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("=")),
Conditional_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("?")),
Equal_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("==")),
NotEqual_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("!=")),
Greater_Equal_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get (">=")),
Less_Equal_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("<=")),
Greater_Than_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get (">")),
Less_Than_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("<")),
Complement_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("~")),
Not_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("!")),
Xor_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("^")),
Plus_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("+")),
Minus_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("-")),
Times_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("*")),
Divide_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("/")),
Remainder_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("%")),
Increment_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("++")),
Decrement_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("--")),
LeftShift_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("<<")),
RightShift_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get (">>")),
UnsignedRightShift_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get (">>>")),
PlusAssign_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("+=")),
MinusAssign_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("-=")),
TimesAssign_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("*=")),
DivideAssign_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("/=")),
RemainderAssign_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("%=")),
AndAssign_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("&=")),
OrAssign_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("|=")),
XorAssign_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("^=")),
LeftShiftAssign_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get ("<<=")),
RightShiftAssign_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get (">>=")),
UnsignedRightShiftAssign_T => Tokenizer.Get (OpenToken.Recognizer.Separator.Get (">>>=")),
Null_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("null", True)),
False_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("false", True)),
True_T => Tokenizer.Get (OpenToken.Recognizer.Keyword.Get ("true", True)),
Integer_T => Tokenizer.Get
(OpenToken.Recognizer.Integer.Get
(Allow_Underscores => False,
Allow_Exponent => False,
Allow_Signs => False,
Allow_Leading_Zero => False)),
Based_Integer_T => Tokenizer.Get (OpenToken.Recognizer.Based_Integer_Java_Style.Get),
Real_T => Tokenizer.Get
(OpenToken.Recognizer.Real.Get
(Allow_Underscores => False,
Allow_Signs => False,
Allow_Laziness => True)),
Identifier_T => Tokenizer.Get
(OpenToken.Recognizer.Identifier.Get
(Start_Chars => Ada.Strings.Maps.Constants.Letter_Set,
Body_Chars => Ada.Strings.Maps.Constants.Alphanumeric_Set)),
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 ("btnfr""'\"))),
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 => OpenToken.Recognizer.String.Java_Style_Escape_Code_Map)),
EndOfLineComment_T => Tokenizer.Get (OpenToken.Recognizer.Line_Comment.Get ("//")),
EmbeddedComment_T => Tokenizer.Get (OpenToken.Recognizer.Bracketed_Comment.Get ("/*", "*/")),
Whitespace_T => Tokenizer.Get
(OpenToken.Recognizer.Character_Set.Get (OpenToken.Recognizer.Character_Set.Standard_Whitespace)),
End_of_File_T => Tokenizer.Get (OpenToken.Recognizer.End_Of_File.Get));
Analyzer : constant Tokenizer.Handle := Tokenizer.Initialize (Syntax);
end Java_Lexer;
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