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{
This file is part of the Free Pascal run time library.
Copyright (c) 2016 by Marcus Sackrow and Karoly Balogh
members of the Free Pascal development team.
Command line parameter handling for Atari
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
This program 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.
**********************************************************************}
{ Generates correct argument array on startup }
procedure GenerateArgs;
var
ArgVLen: LongInt;
procedure AllocArg(Idx, Len: LongInt);
var
i, OldArgVLen : LongInt;
begin
if Idx >= ArgVLen then
begin
OldArgVLen := ArgVLen;
ArgVLen := (Idx + 8) and (not 7);
SysReAllocMem(Argv, Argvlen * SizeOf(Pointer));
for i := OldArgVLen to ArgVLen - 1 do
ArgV[i]:=nil;
end;
ArgV[Idx] := SysAllocMem(Succ(Len));
end;
var
Count: Word;
Start: Word;
Ende: Word;
LocalIndex: Word;
i: Integer;
P : PChar;
Temp : AnsiString;
InQuotes: boolean;
begin
P := Args;
ArgVLen := 0;
{ Set argv[0] }
Temp := ParamStr(0);
AllocArg(0, Length(Temp));
Move(Temp[1], Argv[0]^, Length(Temp));
Argv[0][Length(Temp)] := #0;
InQuotes := False;
{ Handle the other args }
Count := 0;
{ first index is one }
LocalIndex := 1;
while (P[Count] <> #0) do
begin
while (p[count]=' ') or (p[count]=#9) or (p[count]=LineEnding) do
Inc(count);
if p[count] = '"' then
begin
inQuotes := True;
Inc(Count);
end;
start := count;
if inQuotes then
begin
while (p[count]<>#0) and (p[count]<>'"') and (p[count]<>LineEnding) do
begin
Inc(Count)
end;
end else
begin
while (p[count]<>#0) and (p[count]<>' ') and (p[count]<>#9) and (p[count]<>LineEnding) do
inc(count);
end;
ende := count;
if not inQuotes then
begin
while (p[start]=' ') and (Start < Ende) do
Inc(Start)
end;
if (ende-start>0) then
begin
allocarg(localindex,ende-start);
move(p[start],argv[localindex]^,ende-start);
argv[localindex][ende-start]:=#0;
if inQuotes and (argv[localindex][(ende-start) - 1] = '"') then
argv[localindex][(ende-start)-1] := #0;
inc(localindex);
end;
if inQuotes and (p[count] = '"') then
Inc(Count);
inQuotes := False;
end;
argc:=localindex;
end;
{*****************************************************************************
ParamStr
*****************************************************************************}
{ number of args }
function ParamCount: LongInt;
begin
ParamCount := argc - 1;
end;
{ argument number l }
function ParamStr(l: LongInt): string;
var
s1: string;
begin
ParamStr := '';
if (l > 0) and (l + 1 <= argc) then
ParamStr := StrPas(argv[l]);
end;
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