X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fmathed%2FMathExtern.cpp;h=182a00971f1b57a90610d7dc71b8f27790751539;hb=5d7dae9e382f0b01800f5652e673e12fa6923740;hp=b3443fa919a5d096bff0b44636b54e9f921903c2;hpb=3c6f2427c35064cd248ed2ca0482e6ea30b4d609;p=lyx.git

diff --git a/src/mathed/MathExtern.cpp b/src/mathed/MathExtern.cpp
index b3443fa919..182a00971f 100644
--- a/src/mathed/MathExtern.cpp
+++ b/src/mathed/MathExtern.cpp
@@ -896,6 +896,10 @@ void extractDiff(MathData & ar)
 				int mult = 1;
 				if (extractNumber(script->up(), mult)) {
 					//lyxerr << "mult: " << mult << endl;
+					if (mult < 0 || mult > 1000) {
+						lyxerr << "Cannot differentiate less than 0 or more than 1000 times !" << endl;
+						continue;
+					}
 					for (int i = 0; i < mult; ++i)
 						diff->addDer(MathData(buf, dt + 1, st));
 				}
@@ -1001,8 +1005,13 @@ namespace {
 	{
 		// In order to avoid parsing problems with command interpreters
 		// we pass input data through a file
-		TempFile tempfile("casinput");
-		FileName const cas_tmpfile = tempfile.name();
+		// Since the CAS is supposed to read the temp file we need
+		// to unlock it on windows (bug 10262).
+		unique_ptr<TempFile> tempfile(new TempFile("casinput"));
+		tempfile->setAutoRemove(false);
+		FileName const cas_tmpfile = tempfile->name();
+		tempfile.reset();
+
 		if (cas_tmpfile.empty()) {
 			lyxerr << "Warning: cannot create temporary file."
 			       << endl;
@@ -1016,6 +1025,7 @@ namespace {
 		lyxerr << "calling: " << cmd
 		       << "\ninput: '" << data << "'" << endl;
 		cmd_ret const ret = runCommand(command);
+		cas_tmpfile.removeFile();
 		return ret.second;
 	}