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-------------------------------------------------------------------------------
-- (C) Altran Praxis Limited
-------------------------------------------------------------------------------
--
-- The SPARK toolset is free software; you can redistribute it and/or modify it
-- under 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 SPARK toolset 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 SPARK toolset; see file
-- COPYING3. If not, go to http://www.gnu.org/licenses for a complete copy of
-- the license.
--
--=============================================================================
separate (SPARKProgram)
package body Annotations is
procedure Initialize
(This : out Anno_Type;
Anno_Intro : in String;
Anno_Succ : in String;
Anno_Indent : in Natural)
is
Start_Str : Anno_Start_Type;
Loc_Succ : E_Strings.T;
begin
Start_Str := Anno_Start_Type'(1 | 2 => '-',
3 => CommandLineData.Content.Anno_Char);
if Anno_Succ = "" then
Loc_Succ := E_Strings.Empty_String;
else
Loc_Succ := E_Strings.Copy_String (Str => Anno_Succ);
end if;
This :=
Anno_Type'
(Anno_Start => Start_Str,
Anno_Intro => E_Strings.Copy_String (Str => Anno_Intro),
Anno_Succ => Loc_Succ,
Anno_Indent => Anno_Indent);
end Initialize;
function Intro (This : Anno_Type) return E_Strings.T is
begin
return This.Anno_Intro;
end Intro;
function Indent (This : Anno_Type) return Natural is
begin
return This.Anno_Indent;
end Indent;
procedure Is_Anno_Start
(This : in Anno_Type;
Input_Line : in E_Strings.T;
Index : in out E_Strings.Lengths;
OK : out Boolean)
is
begin
White_Space.Skip (Input_Line => Input_Line,
Index => Index);
if E_Strings.Get_Length (E_Str => Input_Line) >= Index + 2
and then E_Strings.Get_Element (E_Str => Input_Line,
Pos => Index) = This.Anno_Start (1)
and then E_Strings.Get_Element (E_Str => Input_Line,
Pos => Index + 1) = This.Anno_Start (2)
and then E_Strings.Get_Element (E_Str => Input_Line,
Pos => Index + 2) = This.Anno_Start (3) then
Index := Index + 3;
OK := True;
else
OK := False;
end if;
end Is_Anno_Start;
function Starts_With
(Start_Str : E_Strings.T;
Input_Line : E_Strings.T;
Initial_Index : E_Strings.Positions)
return Boolean
is
Index : E_Strings.Positions;
Loc_OK : Boolean;
begin
Index := Initial_Index;
White_Space.Skip (Input_Line => Input_Line,
Index => Index);
Loc_OK := E_Strings.Get_Length (E_Str => Input_Line) > 0
and then ((E_Strings.Get_Length (E_Str => Input_Line) - Index) + 1) >=
E_Strings.Get_Length (E_Str => Start_Str);
if Loc_OK then
for I in E_Strings.Lengths range 1 .. E_Strings.Get_Length (E_Str => Start_Str) loop
Loc_OK := Ada.Characters.Handling.To_Lower (E_Strings.Get_Element (E_Str => Start_Str,
Pos => I)) =
Ada.Characters.Handling.To_Lower (E_Strings.Get_Element (E_Str => Input_Line,
Pos => (I + Index) - 1));
exit when not Loc_OK;
end loop;
end if;
return Loc_OK;
end Starts_With;
function Is_Start_Of (This : Anno_Type;
Input_Line : E_Strings.T) return Boolean is
Index : E_Strings.Positions;
Result : Boolean;
begin
Index := 1;
Is_Anno_Start (This => This,
Input_Line => Input_Line,
Index => Index,
OK => Result);
Result := Result and then Starts_With (Start_Str => This.Anno_Intro,
Input_Line => Input_Line,
Initial_Index => Index);
return Result;
end Is_Start_Of;
function Is_End_Of (This : Anno_Type;
Input_Line : E_Strings.T) return Boolean is
Index : E_Strings.Positions;
Loc_OK : Boolean;
Result : Boolean;
begin
Index := 1;
Is_Anno_Start (This => This,
Input_Line => Input_Line,
Index => Index,
OK => Loc_OK);
if not Loc_OK then
-- No longer in an annotation and therfore ended
Result := True;
else
-- Otherwise only ended if this is the start of a successive annotation
if E_Strings.Get_Length (E_Str => This.Anno_Succ) > 0 then
Result := Starts_With (Start_Str => This.Anno_Succ,
Input_Line => Input_Line,
Initial_Index => Index);
else
Result := False;
end if;
end if;
return Result;
end Is_End_Of;
function Proper_Start_Col (Start_Col : E_Strings.Positions) return E_Strings.Positions is
begin
return (Start_Col + Anno_Start_Type'Length) + 1;
end Proper_Start_Col;
procedure Write (This : in Anno_Type;
Output : in SPARK_IO.File_Type;
Start_Col : in E_Strings.Positions) is
begin
SPARK_IO.Set_Col (Output, Start_Col);
SPARK_IO.Put_String (Output, This.Anno_Start, 0);
end Write;
procedure Write_Intro (This : in Anno_Type;
Output : in SPARK_IO.File_Type;
Start_Col : in E_Strings.Positions) is
begin
Write (This => This,
Output => Output,
Start_Col => Start_Col);
SPARK_IO.Set_Col (Output, Proper_Start_Col (Start_Col => Start_Col));
E_Strings.Put_String (File => Output,
E_Str => This.Anno_Intro);
-- If Indent is not Inline, then don't put out a trailing space,
-- since this will be rejected by GNAT -gnatyb style check mode.
if This.Anno_Indent = SparkFormatCommandLineData.Inline then
SPARK_IO.Put_String (Output, " ", 0);
end if;
end Write_Intro;
function Name1_Start_Col (This : in Anno_Type;
Start_Col : in E_Strings.Positions) return E_Strings.Positions is
Name_Column : E_Strings.Positions;
begin
if This.Anno_Indent /= SparkFormatCommandLineData.Inline then
-- Start_Col "is --# " but indent value is given from "--#"
Name_Column := Proper_Start_Col (Start_Col => Start_Col) + (This.Anno_Indent - 1);
else
Name_Column := Proper_Start_Col (Start_Col => Start_Col) + (E_Strings.Get_Length (E_Str => This.Anno_Intro) + 1);
end if;
return Name_Column;
end Name1_Start_Col;
end Annotations;
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