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-- Std.Textio package declaration. This file is part of GHDL.
-- This file was written from the clause 14.3 of the VHDL LRM.
-- Copyright (C) 2002 - 2014 Tristan Gingold
--
-- GHDL 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 2, or (at your option) any later
-- version.
--
-- GHDL 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
-- along with GCC; see the file COPYING3. If not see
-- <http://www.gnu.org/licenses/>.
package Textio is
-- type definitions for text i/o
-- a LINE is a pointer to a string value.
type Line is access String;
-- A file of variable-length ASCII records.
-- Note: in order to work correctly, the TEXT file type must be declared in
-- the Textio package of library Std. Otherwise, a file of string has a
-- non-ASCII format.
type text is file of String;
type side is (right, left); -- For justifying ouput data within fields.
subtype width is natural; -- For specifying widths of output fields.
-- standard text files
--START-V08
function Justify (Value: String;
Justified : Side := Right;
Field: Width := 0 ) return String;
--END-V08
file input: text is in "STD_INPUT"; --V87
file output: text is out "STD_OUTPUT"; --V87
file input : text open read_mode is "STD_INPUT"; --!V87
file output : text open write_mode is "STD_OUTPUT"; --!V87
-- input routines for standard types
procedure readline (variable f: in text; l: inout line); --V87
procedure readline (file f: text; l: inout line); --!V87
-- For READ procedures:
-- In this implementation, any L is accepted (ie, there is no constraints
-- on direction, or left bound). Therefore, even variable of type LINE
-- not initialized by READLINE are accepted. Strictly speaking, this is
-- not required by LRM, nor prevented. However, other implementations may
-- fail at parsing such Strings.
--
-- Also, in case of error (GOOD is false), this implementation do not
-- modify L (as specified by the LRM) nor VALUE.
--
-- For READ procedures without a GOOD argument, an assertion fails in case
-- of error.
--
-- In case of overflow (ie, if the number is out of the bounds of the type),
-- the procedure will fail with an execution error.
-- FIXME: this should not occur for a bad String.
procedure read (l: inout line; value: out bit; good: out boolean);
procedure read (l: inout line; value: out bit);
procedure read (l: inout line; value: out bit_vector; good: out boolean);
procedure read (l: inout line; value: out bit_vector);
procedure read (l: inout line; value: out boolean; good: out boolean);
procedure read (l: inout line; value: out boolean);
procedure read (l: inout line; value: out character; good: out boolean);
procedure read (l: inout line; value: out character);
procedure read (l: inout line; value: out integer; good: out boolean);
procedure read (l: inout line; value: out integer);
procedure read (l: inout line; value: out real; good: out boolean);
procedure read (l: inout line; value: out real);
procedure read (l: inout line; value: out String; good: out boolean);
procedure read (l: inout line; value: out String);
-- This implementation requires no space after the unit identifier,
-- ie "7.5 nsv" is parsed as 7.5 ns.
-- The unit identifier can be in lower case, upper case or mixed case.
procedure read (l: inout line; value: out time; good: out boolean);
procedure read (l: inout line; value: out time);
--START-V08
procedure Sread (L : inout Line; Value : out String; Strlen : out Natural);
alias STRING_READ is SREAD [LINE, STRING, NATURAL];
alias BREAD is READ [LINE, BIT_VECTOR, BOOLEAN];
alias BREAD is READ [LINE, BIT_VECTOR];
alias BINARY_READ is READ [LINE, BIT_VECTOR, BOOLEAN];
alias BINARY_READ is READ [LINE, BIT_VECTOR];
procedure Oread (L : inout Line; Value : out Bit_Vector; Good : out Boolean);
procedure Oread (L : inout Line; Value : out Bit_Vector);
alias OCTAL_READ is OREAD [LINE, BIT_VECTOR, BOOLEAN];
alias OCTAL_READ is OREAD [LINE, BIT_VECTOR];
procedure Hread (L : inout Line; Value : out Bit_Vector; Good : out Boolean);
procedure Hread (L : inout Line; Value : out Bit_Vector);
alias HEX_READ is HREAD [LINE, BIT_VECTOR, BOOLEAN];
alias HEX_READ is HREAD [LINE, BIT_VECTOR];
--END-V08
-- output routines for standard types
procedure writeline (variable f: out text; l: inout line); --V87
procedure writeline (file f: text; l: inout line); --!V87
--START-V08
procedure Tee (file f : Text; L : inout LINE);
--END-V08
-- This implementation accept any value for all the types.
procedure write
(l: inout line; value: in bit;
justified: in side := right; field: in width := 0);
procedure write
(l: inout line; value: in bit_vector;
justified: in side := right; field: in width := 0);
procedure write
(l: inout line; value: in boolean;
justified: in side := right; field: in width := 0);
procedure write
(l: inout line; value: in character;
justified: in side := right; field: in width := 0);
procedure write
(l: inout line; value: in integer;
justified: in side := right; field: in width := 0);
procedure write
(L: inout line; value: in real;
justified: in side := right; field: in width := 0;
digits: in natural := 0);
procedure write
(l: inout line; value: in String;
justified: in side := right; field: in width := 0);
-- UNIT must be a unit name declared in std.standard. Of course, no rules
-- in the core VHDL language prevent you from using a value that is not a
-- unit (eg: 10 ns or even 5 fs).
-- An assertion error message is generated in this case, and question mark
-- (?) is written at the place of the unit name.
procedure write
(l: inout line; value : in time;
justified: in side := right; field: in width := 0; unit : in TIME := ns);
--START-V08
alias Swrite is write [Line, String, Side, Width];
alias String_Write is Write [Line, String, Side, Width];
alias Bwrite is write [Line, Bit_Vector, Side, Width];
alias Binary_Write is write [Line, Bit_Vector, Side, Width];
procedure Owrite (L : inout line; value : in Bit_Vector;
Justified : in Side := Right; Field : in Width := 0);
alias Octal_Write is Owrite [Line, Bit_Vector, Side, Width];
procedure Hwrite (L : inout line; value : in Bit_Vector;
Justified : in Side := Right; Field : in Width := 0);
alias Hex_Write is Hwrite [Line, Bit_Vector, Side, Width];
--END-V08
end textio;
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