On Fri, Feb 01, 2002 at 04:35:15PM +0100, Andre Poenitz wrote:
> On Fri, Feb 01, 2002 at 05:32:12PM +0200, Martin Vermeer wrote:
> > There isn't anything else that I am aware of and that you can get
> > rendered by LaTeX. It just refuses in math mode. Of couse \ddot is
> > double differentiation wrt time. I suppose you just cannot use umlauted
> > letters in math.
>
> Ok. So \ddot{o} is not too bad.
>
> Andre'
Actually the situation is more complicated than that. You *can* get
text-mode accents into math, and sometimes you need them too, like when
writing explanatory strings in non-USASCII in a formula. Like
( +1 wenn größer
var = (
( -1 wenn kleiner
Currently this requires ERT. Which is a bit silly for a piece of natural
language ;-) The math accents (like \ddots(o) for ö) will sort-of do but
are not quite right.
The probably best solution would be to have a \mbox inset or so, inside
of which things behave like in a text inset, Umlauts and all. There is
no easy fix here and now, I think.
I have been experimenting with macros for producing the Å (Ångström) and
Ø (Oersted) units in textrm. That solves that special problem, and one
could place them on some math panel too. But you wouldn't want to see
this for *all* the accented characters that people around the world
would want to embed in their math...
Alternatively use the same mechanism I used in producing the
calligraphic F, L, H and O on the Misc sub-panel. Minuses are that (1)
this is not a job for the front end really, and (2) it still allows a
user to go and change textrm back to the default math in spite of the
presence of Umlauts. And then LaTeX will spit out a warning, something
LyX sould protect against.
I attach a fix that gets the accents working in maths as it was probably
intended. Now you can type "a to get ä and even press the ä key if you
have one. It still misbehaves a bit in anything but the default math
font though. But I think it is clearly better than what there is now.
-- Martin
Index: formulabase.C
===================================================================
RCS file: /cvs/lyx/lyx-devel/src/mathed/formulabase.C,v
retrieving revision 1.121
diff -u -b -B -p -r1.121 formulabase.C
--- formulabase.C 2002/01/16 14:24:37 1.121
+++ formulabase.C 2002/02/03 20:25:11
@@ -32,6 +32,7 @@
#include "LaTeXFeatures.h"
#include "debug.h"
#include "math_support.h"
+#include "frontends/Dialogs.h"
#include "support/lstrings.h"
#include "LyXView.h"
#include "Painter.h"
@@ -73,10 +74,13 @@ void handleFont(BufferView * bv, MathTex
}
-void handleAccent(BufferView * bv, string const & name)
+void handleAccent(BufferView * bv, string const & name, string const & arg)
{
bv->lockedInsetStoreUndo(Undo::EDIT);
mathcursor->insert(createMathInset(name));
+ mathcursor->left();
+ mathcursor->interpret(arg);
+ mathcursor->right();
}
@@ -500,17 +508,33 @@ InsetFormulaBase::localDispatch(BufferVi
// --- accented characters ------------------------------
- case LFUN_UMLAUT: handleAccent(bv, "ddot"); break;
- case LFUN_CIRCUMFLEX: handleAccent(bv, "hat"); break;
- case LFUN_GRAVE: handleAccent(bv, "grave"); break;
- case LFUN_ACUTE: handleAccent(bv, "acute"); break;
- case LFUN_TILDE: handleAccent(bv, "tilde"); break;
- case LFUN_MACRON: handleAccent(bv, "bar"); break;
- case LFUN_DOT: handleAccent(bv, "dot"); break;
- case LFUN_CARON: handleAccent(bv, "check"); break;
- case LFUN_BREVE: handleAccent(bv, "breve"); break;
- case LFUN_VECTOR: handleAccent(bv, "vec"); break;
- case LFUN_UNDERBAR: handleAccent(bv, "underbar"); break;
+ case LFUN_UMLAUT:
+ case LFUN_CIRCUMFLEX:
+ case LFUN_GRAVE:
+ case LFUN_ACUTE:
+ case LFUN_TILDE:
+ case LFUN_MACRON:
+ case LFUN_DOT:
+ case LFUN_CARON:
+ case LFUN_BREVE:
+ case LFUN_VECTOR:
+ case LFUN_UNDERBAR:
+ switch(action) {
+ case LFUN_UMLAUT: handleAccent(bv, "ddot", arg); break;
+ case LFUN_CIRCUMFLEX: handleAccent(bv, "hat", arg); break;
+ case LFUN_GRAVE: handleAccent(bv, "grave", arg); break;
+ case LFUN_ACUTE: handleAccent(bv, "acute", arg); break;
+ case LFUN_TILDE: handleAccent(bv, "tilde", arg); break;
+ case LFUN_MACRON: handleAccent(bv, "bar", arg); break;
+ case LFUN_DOT: handleAccent(bv, "dot", arg); break;
+ case LFUN_CARON: handleAccent(bv, "check", arg); break;
+ case LFUN_BREVE: handleAccent(bv, "breve", arg); break;
+ case LFUN_VECTOR: handleAccent(bv, "vec", arg); break;
+ case LFUN_UNDERBAR: handleAccent(bv, "underbar", arg); break;
+ default: ;
+ }
+ updateLocal(bv, true);
+ break;
// Math fonts
case LFUN_GREEK_TOGGLE: handleFont(bv, LM_TC_GREEK); break;
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