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Length: 16384 (0x4000)
Types: Ada Source
Notes: 03_class, FILE, R1k_Segment, e3_tag, package Window_Io, pragma Module_Name 4 2219, pragma Subsystem Object_Editor, seg_0063c0
└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
└─ ⟦cfc2e13cd⟧ »Space Info Vol 2«
└─⟦this⟧
with Io_Exceptions;
package Window_Io is
pragma Subsystem (Object_Editor, Closed);
pragma Module_Name (4, 2219);
-- package for providing raw IO facilities to an image
type File_Type is private;
type File_Mode is (In_File, Out_File);
-- the mode of the handle. Each image can be opened twice - once
-- for input and once for output.
-- Create an image for IO.
-- Normally, a new empty image is created on this call.
-- If an image is already open for this job with the given name,
-- and the mode given /= the mode the image is open for, that
-- image will be opened for the new mode.
procedure Create (File : in out File_Type;
Mode : File_Mode := Out_File;
Name : String;
Form : String := "");
-- Open a previously closed image. The same rules apply for create
-- in the case one job opens the same image twice; once for input and
-- once for output
procedure Open (File : in out File_Type;
Mode : File_Mode := Out_File;
Name : String;
Form : String := "");
-- Terminate operations on this image.
procedure Close (File : in out File_Type);
-- Delete the image. Any other handles on this image are implicitly
-- closed.
procedure Delete (File : in out File_Type);
function Mode (File : File_Type) return File_Mode;
function Name (File : File_Type) return String;
function Form (File : File_Type) return String;
function Is_Open (File : File_Type) return Boolean;
package Raw is
-- gain access to the keyboard for "raw" input.
-- one channel may be opened per job.
-- no echoing or local editing is performed.
type Stream_Type is private;
procedure Open (Stream : in out StreamType);
procedure Close (Stream : in out Stream_Type;
Flush_Pending_Input : Boolean := False);
procedure Disconnect (Stream : in out Stream_Type);
-- free users keyboard
type Key is new Natural range 0 .. 1023;
type Key_String is array (Positive range <>) of Key;
-- a key is the basic bit of input.
subtype Simple_Key is Key range 0 .. 127;
-- a simple key represents the ascii characters
procedure Get (Stream : Stream_Type; Item : out Key);
procedure Get (Stream : Stream_Type; Item : out Key_String);
-- converting keys to characters
-- the ascii characters map directly to the first 128 keys
function Convert (C : Character) return Simple_Key;
function Convert (K : Simple_Key) return Character;
-- keys are mapped to logical names
-- these names correspond to the 'image attribute of the
-- enumerations in machine.editor_data.visible_key_names
subtype Terminal is String;
-- supported terminal types are Cit500R, Vt100, Rational
function Image (For_Key : Key; On_Terminal : Terminal) return String;
-- image is "", if For_Key is not defined for this terminal type
procedure Value (For_Key_Name : String;
On_Terminal : Terminal;
Result : out Key;
Found : out Boolean);
-- Found is false => For_Key_Name does not name a key on this terminal
function Value
(For_Key_Name : String; On_Terminal : Terminal) return Key;
Unknown_Key : exception;
-- raised by functional form of value
end Raw;
subtype Column_Number is Positive;
subtype Line_Number is Positive;
-- a file_type is initialized to column 1, line 1
subtype Count is Natural;
subtype Positive_Count is Count range 1 .. Count'Last;
-- output
-- characters are displayed at the current cursor position
-- control characters are displayed in reverse-video
type Designation is (Text, Prompt, Protected);
type Attribute is
record
Bold : Boolean;
Faint : Boolean;
Underscore : Boolean;
Inverse : Boolean;
Slow_Blink : Boolean;
Rapid_Blink : Boolean;
Unused_0 : Boolean;
Unused_1 : Boolean;
end record;
Vanilla : constant Attribute := (others => False);
type Character_Set is new Natural range 0 .. 15;
Plain : constant Character_Set := 0;
Graphics : constant Character_Set := 1;
type Font is
record
Kind : Character_Set;
Look : Attribute;
end record;
Normal : constant Font := Font'(Plain, Vanilla);
function Default_Font (For_Type : Designation) return Font;
-- the fonts normally used by the environment for these designations
-- are returned
procedure Position_Cursor (File : File_Type;
Line : Line_Number := Line_Number'First;
Column : Column_Number := Column_Number'First;
Offset : Natural := 0);
-- Position the cursor on the image.
-- Offset is used to position the cursor relative to the top of the window.
-- With an offset of 0, the cursor is made visible in the window using
-- the normal editor defaults.
-- With a positive offset, the image is scrolled in the window so the
-- cursor is the offset line in the window.
procedure Move_Cursor (File : File_Type;
Delta_Lines : Integer;
Delta_Columns : Integer;
Offset : Natural := 0);
procedure Report_Cursor (File : File_Type;
Line : out Line_Number;
Column : out Column_Number);
procedure Overwrite (File : File_Type;
Item : Character;
Image : Font := Normal;
Kind : Designation := Text);
-- writes ITEM at the current cursor position and advances column by 1
procedure Overwrite (File : File_Type;
Item : String;
Image : Font := Normal;
Kind : Designation := Text);
-- writes ITEM at the current cursor position and advances column by
-- ITEM'LENGTH
procedure Insert (File : File_Type;
Item : Character;
Image : Font := Normal;
Kind : Designation := Text);
-- writes ITEM at the current cursor position and advances column by 1
procedure Insert (File : File_Type;
Item : String;
Image : Font := Normal;
Kind : Designation := Text);
-- writes ITEM at the current cursor position and advances column by
-- ITEM'LENGTH
procedure New_Line (File : File_Type; Lines : Count := 1);
-- insert lines after the current line
-- advances line by Lines, and sets column to 1.
procedure Delete (File : File_Type; Characters : Count);
-- deletes Count characters at current position. Position is unchanged
procedure Delete_Lines (File : File_Type; Lines : Count := 1);
-- deletes Lines including the current line. Position is unchanged
-- input with editing
-- an input prompt with contents PROMPT will be displayed at the current
-- cursor position. Control of the keyboard will be returned to the
-- core editor for user input at the prompt.
procedure Get (File : File_Type;
Prompt : String := "[input]";
Item : out Character);
procedure Get (File : File_Type;
Prompt : String := "[input]";
Item : out String);
procedure Get_Line (File : File_Type;
Prompt : String := "[input]";
Item : out String;
Last : out Natural);
function Get_Line
(File : File_Type; Prompt : String := "[input]") return String;
-- banner operations
-- The value will be displayed in the banner for this image
-- fields are defined from left to right. The first few fields
-- are reserved for the editor. Users may specify field_names
-- of the form "FIELD_0" .. "FIELD_9". Currently 0 .. 2 are used
-- for job_number, start_time and blocked indication, but may be
-- reused by the user.
-- Calling set_banner with other values will be a noop.
procedure Set_Banner
(File : File_Type; Field_Name : String; Value : String);
function Read_Banner (File : File_Type; Field_Name : String) return String;
-- predefined field_names, may be passed to Set_Banner
function Job_Number return String;
function Job_Time return String;
-- sound the terminal bell
procedure Bell (File : File_Type);
-- information about the current image
function End_Of_Line (File : File_Type) return Boolean;
function End_Of_File (File : File_Type) return Boolean;
function Line_Length (File : File_Type) return Count;
function Line_Image (File : File_Type) return String;
function Char_At (File : File_Type) return Character;
function Font_At (File : File_Type) return Font;
function Last_Line (File : File_Type) return Line_Number;
-- information about the current window
-- the origin is the line and column number of the point of the image
-- located in the upper right corner of the window
procedure Report_Origin (File : File_Type;
Line : out Line_Number;
Column : out Column_Number);
-- the size of the window in characters
procedure Report_Size (File : File_Type;
Lines : out Positive_Count;
Columns : out Positive_Count);
-- the location of the window on the screen
-- the upper right corner of the screen is line 1, column 1
procedure Report_Location (File : File_Type;
Line : out Line_Number;
Column : out Column_Number);
end Window_Io;
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tail 0x21701aa2a81bf8152595f 0x42a00088462065003