Add stack

This commit is contained in:
2018-11-22 12:28:37 +02:00
parent 2e07350571
commit b837d46736

View File

@@ -44,18 +44,25 @@ type
property Pos:TAGTokenizerPos read GetPos write SetPos;
end;
{PasTokenizerStack = class
private
stack: TStack<integer>;
// _pop
procedure _get_with_comments();
procedure _get_without_comments();
{$IFNDEF FPC}
TAGPasTokenizerStack=class
strict protected
type
GetCall=reference to function(Tokenizer:TAGPasTokenizer):TAGToken;
var
Stack:TStack<TAGToken>;
Tokenizer:TAGPasTokenizer;
Get:GetCall;
function GetLast():TAGToken;
function IsEnded():Boolean;
public
procedure push(s: string);
procedure pop();
procedure read_last();
procedure is_ended();
end;}
constructor Create(input:TStrings;GetComments:boolean=True);
procedure Push(t:TAGToken);
function Pop():TAGToken;
property Last:TAGToken read GetLast write Push;
property Ended:Boolean read IsEnded;
end;
{$ENDIF}
function IsComment(s: string): boolean;
function IsName(s: string): boolean;
@@ -182,123 +189,124 @@ var
f{$IFDEF FPC},ff{$ENDIF}:boolean;
begin_pos:TAGTokenizerPos;
begin
ml := '';
ss := '';
f := True;
begin_pos := GetPos();
ml:='';
ss:='';
f:=True;
begin_pos:=GetPos();
while f and not ended do
begin
line := s[y];
now_sym := line[x];
l := length(line);
line:=s[y];
now_sym:=line[x];
l:=length(line);
if x<>l+Fix then
next_sym := line[x + 1]
next_sym:=line[x+1]
else
next_sym := #0;
next_sym:=#0;
if ml='' then
begin
if now_sym = '/' then
if now_sym='/' then
begin
if next_sym = '/' then
begin
for i:=x to l+Fix do
ss:=ss+line[i];
x := l+Fix;
break;
end;
if next_sym='/' then
begin
for i:=x to l+Fix do
ss:=ss+line[i];
x:=l+Fix;
break;
end;
end
else if now_sym = '{' then
else if now_sym='{' then
begin
ml := '}';
ss := now_sym;
last_i0 := y;
ml:='}';
ss:=now_sym;
last_i0:=y;
end
else if now_sym = '(' then
else if now_sym='(' then
begin
if next_sym = '*' then
begin
ml := ')';
inc(x);
last_i0 := y;
ss := now_sym + next_sym;
end
else
begin
ss := '(';
inc(x);
break;
end;
if next_sym='*' then
begin
ml:=')';
inc(x);
last_i0:=y;
ss:=now_sym+next_sym;
end
else
begin
ss:='(';
inc(x);
break;
end;
end
else
begin
if SYMS1.Contains(now_sym) then
begin
ss := now_sym;
inc(x);
if SYMS2.{$IFDEF FPC}
if SYMS1.Contains(now_sym)then
begin
ss:=now_sym;
inc(x);
if SYMS2.
{$IFDEF FPC}
IndexOf(now_sym+next_sym)<>-1
{$ELSE}
Contains(now_sym+next_sym)
Contains(now_sym+next_sym)
{$ENDIF}then
begin
inc(x);
ss := ss + next_sym;
end;
break;
end
else if now_sym = #39 then
begin
ss := #39;
inc(x);
if next_sym <> '' then
begin
ss := ss + next_sym;
while line[x] <> #39 do
begin
inc(x);
if not IsReadable() then
begin
dec(x);
break;
end;
ss := ss + line[x];
end;
inc(x);
end;
break;
end
else
begin
while not NO_NAME_SYMS.Contains(line[x]) do
begin
ss := ss + line[x];
inc(x);
if not IsReadable() then
break;
end;
break;
end;
begin
inc(x);
ss:=ss+next_sym;
end;
break;
end
else if now_sym=#39 then
begin
ss:=#39;
inc(x);
if next_sym<>'' then
begin
ss:=ss+next_sym;
while line[x] <> #39 do
begin
inc(x);
if not IsReadable() then
begin
dec(x);
break;
end;
ss:=ss+line[x];
end;
inc(x);
end;
break;
end
else
begin
while not NO_NAME_SYMS.Contains(line[x]) do
begin
ss:=ss+line[x];
inc(x);
if not IsReadable() then
break;
end;
break;
end;
end;
end
else
begin
while last_i0 <> y do
while last_i0<>y do
begin
ss := ss + #10;
inc(last_i0);
ss:=ss+#10;
inc(last_i0);
end;
ss:=ss+now_sym;
if now_sym = ml then
if ml = '}' then
begin
inc(x);
break;
end
else if (x <> 0) and (line[x - 1] = '*') then
begin
inc(x);
break;
end;
if now_sym=ml then
if ml='}' then
begin
inc(x);
break;
end
else if(x<>0)and(line[x-1]='*')then
begin
inc(x);
break;
end;
end;
NextReadable();
end;
@@ -308,7 +316,7 @@ begin
Result.&end:=GetPos;
Result.ended:=ended;
{$ELSE}
Result := TAGToken.Create(ss, begin_pos, GetPos, ended);
Result:=TAGToken.Create(ss,begin_pos,GetPos,ended);
{$ENDIF}
SkipSpaces;
end;
@@ -322,6 +330,61 @@ begin
SkipSpaces;
end;
{$IFNDEF FPC}
{TAGPasTokenizerStack}
function TAGPasTokenizerStack.GetLast():TAGToken;
begin
if Stack.Count<>0 then
Result:=Stack.Peek
else
begin
Result:=Get;
Stack.Push(Result);
end;
end;
function TAGPasTokenizerStack.IsEnded():Boolean;
begin
end;
constructor TAGPasTokenizerStack.Create(input:TStrings;GetComments:boolean=True);
begin
Stack:=TStack<TAGToken>.Create();
Tokenizer:=TAGPasTokenizer.Create(input);
if GetComments then
Get:=function(Tokenizer:TAGPasTokenizer):TAGToken
begin
Result:=Tokenizer.GetNext;
end
else
Get:=function(Tokenizer:TAGPasTokenizer):TAGToken
begin
while True do
begin
Result:=Tokenizer.GetNext;
if Result.ended or not IsComment(Result.Text) then
break;
end;
end;
end;
procedure TAGPasTokenizerStack.Push(t:TAGToken);
begin
Stack.Push(t);
end;
function TAGPasTokenizerStack.Pop():TAGToken;
begin
if Stack.Count<>0 then
Result:=Stack.Pop
else
Result:=Get;
end;
{$ENDIF}
initialization
SYMS2 := {$IFDEF FPC}TStringList{$ELSE}TList<string>{$ENDIF}.Create();
SYMS2.Add('>=');