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thechaingamer
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ada-git-code

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procedure Append (Pos : String_Lists.Cursor) is
begin
if Result /= Null_Unbounded_String then
Result := Result & ", ";
end if;
Result := Result & "'" & String_Lists.Element (Pos) & "'";
end Append;
begin
Item.Iterate (Append'Access);
return To_String (Result);
end Join;
use type Ada.Containers.Count_Type;
begin
if Missing.Length = 1 then
return "Missing mandatory option " & Join (Missing);
else
return "Missing mandatory options: " & Join (Missing);
end if;
end Missing_Message;
function Collect_Parameters (Extra : String_Vectors.Vector)
return String_Vectors.Vector
is
Result : String_Vectors.Vector;
begin
for Idx in 1 .. Command_Line.Argument_Count loop
Result.Append (Command_Line.Argument (Idx));
end loop;
Result.Append (Extra);
return Result;
end Collect_Parameters;
Name : Unbounded_String;
Value : Unbounded_String;
use Name_To_Index_Maps;
Position : Name_To_Index_Maps.Cursor;
Param_Idx : Parameter_Index;
Arguments : constant String_Vectors.Vector := Collect_Parameters (Extend_By);
begin
for Pos in Arguments.First_Index .. Arguments.Last_Index loop
Split_Parameter (Arguments (Pos), Name, Value);
declare
N : String := To_S (Name);
V : constant String := To_S (Value);
Handler : Handler_Access;
This_Parameter : Parameter_Descriptor;
begin
Case_Normalize (N, Parser.Case_Sensitive);
Position := Parser.Name_Table.Find (N);
if Position = No_Element then
raise Bad_Command with "Option '" & To_S (Name) & "' unknown";
end if;
Param_Idx := Name_To_Index_Maps.Element (Position);
This_Parameter := Parser.Parameters (Param_Idx);
Handler := This_Parameter.Handler;
if Handler.Is_Set and not Handler.Reusable then
raise Bad_Command with "Option '" & N & "' given twice";
end if;
Handler.Receive (Name => (
if Parser.Normalize_Name then
To_S (This_Parameter.Standard_Name)
else
N
),
Value => V,
Position => Pos);
Function Definition: procedure Initialize is
Function Body: use Line_Parsers;
Parser : Line_Parser := Create (Case_Sensitive => False);
begin
Add_Parameter (Parser,
Name => "in,input",
If_Missing => Die,
Default => "",
Handler => Input_File'Access);
Add_Parameter (Parser,
Name => "p,proc,processor",
If_Missing => Ignore,
Default => "",
Handler => Processors'Access);