From f200be551a139f8cae905fc7c81b9ef5c58dcf5b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20P=C3=B6nitz?= <poenitz@gmx.net>
Date: Mon, 12 Nov 2001 13:09:26 +0000
Subject: [PATCH] use '1' as integrand if not given

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@3006 a592a061-630c-0410-9148-cb99ea01b6c8
---
 src/mathed/math_exintinset.C |  7 ++++++-
 src/mathed/math_extern.C     | 13 ++++---------
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/src/mathed/math_exintinset.C b/src/mathed/math_exintinset.C
index 2002a6fdd1..b7de3206c6 100644
--- a/src/mathed/math_exintinset.C
+++ b/src/mathed/math_exintinset.C
@@ -72,7 +72,12 @@ void MathExIntInset::draw(Painter &, int, int) const
 
 void MathExIntInset::maplize(MapleStream & os) const
 {
-	os << int_.nucleus() << '(' << core_ << ',' << diff_;
+	os << int_.nucleus() << '(';
+	if (core_.size())
+		os << core_;
+	else 
+		os << '1';
+	os << ',' << diff_;
 	if (hasScripts()) {
 		MathScriptInset * p = scripts_->asScriptInset();
 		os << '=' << p->down().data_ << ".." << p->up().data_;
diff --git a/src/mathed/math_extern.C b/src/mathed/math_extern.C
index 6a9d302313..64eb18b3f3 100644
--- a/src/mathed/math_extern.C
+++ b/src/mathed/math_extern.C
@@ -264,8 +264,7 @@ bool intSymbolTest(MathInset * p)
 
 bool differentialTest(MathInset * p)
 {
-	string s = extractString(p);
-	return s.size() && s[0] == 'd';
+	return extractString(p) == "d";
 }
 
 
@@ -305,16 +304,12 @@ void extractIntegrals(MathArray & ar)
 			p->core(MathArray(st, jt));
 		}
 
-		// is the differential just 'd' oder 'dsomething'?
-		// and replace the original stuff by the new inset
-		string s = extractString(jt->nucleus());
+		// use the atom behind the 'd' as differential
 		MathArray diff;
-		if (s.size() == 1 && jt + 1 != ar.end()) {
-			// use the next atom as differential
+		if (jt + 1 != ar.end()) {
 			diff.push_back(*(jt + 1));
 			ar.erase(it + 1, jt + 2);
 		} else {
-			diff.push_back(MathAtom(new MathStringInset(s.substr(1))));
 			ar.erase(it + 1, jt + 1);
 		}
 		p->differential(diff);
@@ -326,11 +321,11 @@ void extractIntegrals(MathArray & ar)
 
 void extractStructure(MathArray & ar)
 {
-	extractStrings(ar);
 	extractMatrices(ar);
 	extractDelims(ar);
 	extractFunctions(ar);
 	extractIntegrals(ar);
+	extractStrings(ar);
 }