From db033af70049c1227039c3871c8d714b69d30583 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20P=C3=B6nitz?= <poenitz@gmx.net>
Date: Fri, 12 Oct 2001 15:38:58 +0000
Subject: [PATCH] fix x^1<space>_

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@2876 a592a061-630c-0410-9148-cb99ea01b6c8
---
 src/mathed/formulabase.C      |  6 ++++--
 src/mathed/math_cursor.C      | 16 ++++++++++++----
 src/mathed/math_scriptinset.C | 16 ++++++++++++++++
 src/mathed/math_scriptinset.h |  5 +++++
 4 files changed, 37 insertions(+), 6 deletions(-)

diff --git a/src/mathed/formulabase.C b/src/mathed/formulabase.C
index 38dda883f5..f233c7851d 100644
--- a/src/mathed/formulabase.C
+++ b/src/mathed/formulabase.C
@@ -16,6 +16,7 @@
 #include <fstream>
 
 #include "Lsstream.h"
+#include "support/LAssert.h"
 
 #ifdef __GNUG__
 #pragma implementation
@@ -641,10 +642,11 @@ InsetFormulaBase::localDispatch(BufferView * bv, kb_action action,
 		result = UNDISPATCHED;
 	}
 
+	lyx::Assert(mathcursor);
 	//mathcursor->normalize();
 
-	if (was_macro != mathcursor->inMacroMode()
-				&& action >= 0 && action != LFUN_BACKSPACE) 
+	if (//was_macro != mathcursor->inMacroMode() &&
+				action >= 0 && action != LFUN_BACKSPACE) 
   		updateLocal(bv, true);
 	
 	if (mathcursor->selection() || was_selection)
diff --git a/src/mathed/math_cursor.C b/src/mathed/math_cursor.C
index 4c8ec8081d..ee057dedc2 100644
--- a/src/mathed/math_cursor.C
+++ b/src/mathed/math_cursor.C
@@ -132,9 +132,10 @@ MathCursor::MathCursor(InsetFormulaBase * formula, bool left)
 
 void MathCursor::push(MathAtom & t)
 {
-	//cerr << "Entering atom "; t->write(cerr, false); cerr << " left\n";
 	MathCursorPos p;
 	p.par_ = &t;
+	p.idx_ = 0;
+	p.pos_ = 0;
 	Cursor_.push_back(p);
 }
 
@@ -937,7 +938,10 @@ void MathCursor::normalize() const
 
 	if (pos() > size()) {
 		lyxerr << "this should not really happen - 2: "
-		       << pos() << " " << size() << "\n";
+			<< pos() << " " << size() <<  " in idx: " << it->idx()
+			<< " in atom: '";
+		it->par()->write(lyxerr, false);
+		lyxerr << "\n";
 		dump("error 4");
 	}
 	it->pos() = min(pos(), size());
@@ -1321,17 +1325,22 @@ void MathCursor::interpret(char c)
 		if (hasPrevAtom() && prevAtom()->asScriptInset()) {
 			prevAtom()->asScriptInset()->ensure(up);
 			pushRight(prevAtom());
+			idx() = up;
 			pos() = size();
 		} else if (hasNextAtom() && nextAtom()->asScriptInset()) {
 			nextAtom()->asScriptInset()->ensure(up);
 			pushLeft(nextAtom());
+			idx() = up;
 			pos() = 0;
 		} else {
 			plainInsert(MathAtom(new MathScriptInset(up)));
+			prevAtom()->asScriptInset()->ensure(up);
 			pushRight(prevAtom());
+			idx() = up;
+			pos() = 0;
 		}
-		idx() = up;
 		selPaste();
+		dump("1");
 		return;
 	}
 
@@ -1393,7 +1402,6 @@ void MathCursor::interpret(char c)
 		else
 			insert(c, LM_TC_VAR);
 
-#warning greek insert problem? look here!
 		if (lastcode_ == LM_TC_GREEK1)
 			lastcode_ = LM_TC_VAR;
 		return;	
diff --git a/src/mathed/math_scriptinset.C b/src/mathed/math_scriptinset.C
index 305d22c86a..a0ce5ebbc5 100644
--- a/src/mathed/math_scriptinset.C
+++ b/src/mathed/math_scriptinset.C
@@ -294,3 +294,19 @@ bool MathScriptInset::hasDown() const
 {
 	return script_[0];
 }
+
+
+bool MathScriptInset::idxRight(MathInset::idx_type &,
+				 MathInset::pos_type &) const
+{
+	return false;
+}
+
+
+bool MathScriptInset::idxLeft(MathInset::idx_type &,
+				MathInset::pos_type &) const
+{
+	return false;
+}
+
+
diff --git a/src/mathed/math_scriptinset.h b/src/mathed/math_scriptinset.h
index d4c5e62f40..59e0535a68 100644
--- a/src/mathed/math_scriptinset.h
+++ b/src/mathed/math_scriptinset.h
@@ -40,6 +40,11 @@ public:
 	///
 	int width(MathInset const * nucleus) const;
 
+	///
+	bool idxLeft(MathInset::idx_type &, MathInset::pos_type &) const;
+	///
+	bool idxRight(MathInset::idx_type &, MathInset::pos_type &) const;
+
 	///
 	MathScriptInset const * asScriptInset() const;
 	///