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Length: 8192 (0x2000)
Types: Ada Source
Notes: 03_class, FILE, R1k_Segment, e3_tag, package body Automate, package body Lex, seg_04475b
└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
└─⟦5a81ac88f⟧ »Space Info Vol 1«
└─⟦this⟧
package body Lex is
------------------------------------------------------------------------
-- <UNIT> LEX
------------------------------------------------------------------------
--
-- <DESCRIPTION> This package defines types and operations for lexicaly
-- parsing characters from a stream.
--
-- <AUTHOR> Barthe Raphael, Beck Didier, Kempe Laurent
-- <VERSION> 1.0
-- <DATE> 05-Oct-94
-- <MODIFY> 12-Jan-95
--
-- <PKG USED> TEXT_IO, Bounded_String, Character_Utilities,
-- String_Utilities, FILE, Token_Pkg
------------------------------------------------------------------------
package Automate is
function Start return Token;
function Get return Bounded_String.Variable_String;
end Automate;
Thefile : Text_Io.File_Type;
Currenttoken : Token;
procedure Open (Name : in String := "File.test") is
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> Open
--
-- <DESCRIPTION> Open the stream for parsing.
--
-- <EXCEPTIONS> Nothing
--
--------------------------------------------------------------------------------
begin
Text_Io.Open
(File => Thefile, Mode => Text_Io.In_File, Name => Name, Form => "");
File.Open;
end Open;
procedure Close is
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> Close
--
-- <DESCRIPTION> Close the stream used for parsing.
--
-- <EXCEPTIONS> Nothing
--
--------------------------------------------------------------------------------
begin
Text_Io.Close (File => Thefile);
end Close;
function Atend return Boolean is
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> AtEnd
--
-- <DESCRIPTION> Check if we have reached the end of the stream.
--
-- <EXCEPTIONS> Nothing
--
--------------------------------------------------------------------------------
begin
return Currenttoken = T_Eof;
end Atend;
function Image return String is
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> Image
--
-- <DESCRIPTION> Return the image of the last lexical word.
--
-- <EXCEPTIONS> Nothing
--
--------------------------------------------------------------------------------
begin
return Bounded_String.Image (Automate.Get);
end Image;
procedure Next is
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> Next
--
-- <DESCRIPTION> Read the next lexical word from the stream.
--
-- <EXCEPTIONS> Nothing
--
--------------------------------------------------------------------------------
begin
Currenttoken := Automate.Start;
if Currenttoken = T_Ident then
if Iskeyword (Image) then
Currenttoken := To_Token (Image);
end if;
end if;
end Next;
function Getvalue return Bounded_String.Variable_String is
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> GetValue
--
-- <DESCRIPTION> return the last lexical word read from the stream.
--
-- <EXCEPTIONS> Nothing
--
--------------------------------------------------------------------------------
begin
return Automate.Get;
end Getvalue;
function Gettoken return Token is
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> GetToken
--
-- <DESCRIPTION> return the last token recognized from the stream.
--
-- <EXCEPTIONS> Nothing
--
--------------------------------------------------------------------------------
begin
return Currenttoken;
end Gettoken;
function Integer_Convert return Integer is
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> Integer_Convert
--
-- <DESCRIPTION> convert a string into a Natural
--
-- <EXCEPTIONS> Nothing
--
--------------------------------------------------------------------------------
Number : Integer := 0;
Worked : Boolean := False;
begin
if Currenttoken = T_Integer then
String_Utilities.String_To_Number (Image, Number, Worked);
if Worked then
return Number;
end if;
end if;
end Integer_Convert;
function Getline return Positive is
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> GetLine
--
-- <DESCRIPTION> return the number of the current line
--
-- <EXCEPTIONS> Nothing
--
--------------------------------------------------------------------------------
begin
return Positive'Val (Text_Io.Line (Thefile));
end Getline;
function Getcolumn return Positive is
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> GetColumn
--
-- <DESCRIPTION> return the number of the current column
--
-- <EXCEPTIONS> Nothing
--
--------------------------------------------------------------------------------
begin
return Positive'Val (Text_Io.Col (Thefile));
end Getcolumn;
function Currenttoken_Is (T : Token) return Boolean is
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> GetColumn
--
-- <DESCRIPTION> return the number of the current column
--
-- <EXCEPTIONS> Nothing
--
--------------------------------------------------------------------------------
begin
return Currenttoken = T;
end Currenttoken_Is;
package body Automate is separate;
end Lex;
nblk1=7
nid=0
hdr6=e
[0x00] rec0=1c rec1=00 rec2=01 rec3=050
[0x01] rec0=18 rec1=00 rec2=07 rec3=018
[0x02] rec0=22 rec1=00 rec2=02 rec3=006
[0x03] rec0=1f rec1=00 rec2=03 rec3=00a
[0x04] rec0=1f rec1=00 rec2=04 rec3=016
[0x05] rec0=22 rec1=00 rec2=05 rec3=00a
[0x06] rec0=12 rec1=00 rec2=06 rec3=001
tail 0x215404efa863e89903e8a 0x42a00088462060003