[Synedit-devel] problems understanding my own highlighter

[<520...@t-...>]

Dear all,
i made a tex highlighter that is derivated from SynHighlighterHP48.pas.
First let me explain a bit of TeX: there is 'control-sequences' starting
with '\' and ending with ' ' (e.g: \bf) and their is environments (starting
either with '{', '[' or '$' and ending with '}', ']' or again '$'. Now I
want teXSyn2 have to background-color the text between these char, e.g.
'This is a text $mathmode says: a^2+b^2=c^2$ ' --> 'mathmode says:
a^2+b^2=c^2' should have text-foreground color and mathmode
background-color.

So I have:
---
procedure TSynTeX2Syn.MakeMethodTables;
var
  i: Char;
begin
  for i := #0 to #255 do
    case i of
      #0                         : fProcTable[i] := NullProc;
      #10                        : fProcTable[i] := LFProc;
      #13                        : fProcTable[i] := CRProc;
      #36                        : fProcTable[i] := MathmodeProc;
...
      #1..#9, #11, #12, #14..#32 : fProcTable[i] := SpaceProc;
    else
      fProcTable[i] := TextProc;
---

where MathmodeProc looks like:

procedure TSynTeX2Syn.MathModeProc;
begin
 finMathMode:=not(finMathMode);
 fTokenID:=tkMathMode;
 Inc(Run);
end;  { MathModeProc }

This changes a private finMathmode Boolean. Now TextProc looks like:

procedure TSynTeX2Syn.TextProc;
begin
 if (finMathMode) then
  fTokenID:=tkTextMMBK
 else
  fTokenID:=tkText;
  inc(Run);
end;  { TextProc }

tkTextMMBK is tkText with additional background color.


That all works fine if $-environment is single-line and if i don't change
the synedit content ;(. If I delete the first $ in 'test $A_t$ und $B_t$' it
bg colors his is a text 'test ' and not '$ und $'. But if the window
containing the synedit looses the focus and is activated again, everything
is fine.

makes sense to you ? please explain it to me - maybe synedit needs to redraw
everything if i change this '$' - but think about the speed loss if their
are many environments ...

Has anybody an idea how this could be solved ?

Many thanx in advance
Sören

P.s. plz excude the bad english...