do not crash

3 files changed, 34 insertions, 5 deletions

diff --git a/tests/auto/linguist/lupdate/testdata/good/parsecpp/main.cpp b/tests/auto/linguist/lupdate/testdata/good/parsecpp/main.cpp
index 8201add..e243e66 100644
--- a/tests/auto/linguist/lupdate/testdata/good/parsecpp/main.cpp
+++ b/tests/auto/linguist/lupdate/testdata/good/parsecpp/main.cpp
@@ -228,3 +228,22 @@ QT_TRID_NOOP("this_a_id")
 //~ some thing
 //% "This needs to be here. Really."
 QString test = qtTrId("this_another_id", n);
+
+
+
+class YetAnotherTest : QObject {
+    Q_OBJECT
+
+    int function(void)
+    {
+        //
+        //:
+        //=
+        //~
+        //#
+        //=============
+        //~~~~~~~~~~~~~
+        //:::::::::::::
+        tr("nothing");
+    }
+};
diff --git a/tests/auto/linguist/lupdate/testdata/good/parsecpp/project.ts.result b/tests/auto/linguist/lupdate/testdata/good/parsecpp/project.ts.result
index d63c7c3..26e5a65 100644
--- a/tests/auto/linguist/lupdate/testdata/good/parsecpp/project.ts.result
+++ b/tests/auto/linguist/lupdate/testdata/good/parsecpp/project.ts.result
@@ -278,6 +278,14 @@ backslashed \ stuff.</source>
     </message>
 </context>
 <context>
+    <name>YetAnotherTest</name>
+    <message>
+        <location filename="main.cpp" line="247"/>
+        <source>nothing</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
+<context>
     <name>scope</name>
     <message numerus="yes">
         <location filename="main.cpp" line="187"/>
diff --git a/tools/linguist/lupdate/cpp.cpp b/tools/linguist/lupdate/cpp.cpp
index 6374912..4d89156 100644
--- a/tools/linguist/lupdate/cpp.cpp
+++ b/tools/linguist/lupdate/cpp.cpp
@@ -1896,25 +1896,26 @@ void CppParser::parseInternal(ConversionData &cd, QSet<QString> &inclusions)
                     prospectiveContext.clear();
             }
             break;
-        case Tok_Comment:
+        case Tok_Comment: {
             if (!tor)
                 goto case_default;
-            if (yyWord.at(0) == QLatin1Char(':') && yyWord.at(1).isSpace()) {
+            const QChar *ptr = yyWord.unicode();
+            if (*ptr == QLatin1Char(':') && ptr[1].isSpace()) {
                 yyWord.remove(0, 2);
                 extracomment += yyWord;
                 extracomment.detach();
-            } else if (yyWord.at(0) == QLatin1Char('=') && yyWord.at(1).isSpace()) {
+            } else if (*ptr == QLatin1Char('=') && ptr[1].isSpace()) {
                 yyWord.remove(0, 2);
                 msgid = yyWord.simplified();
                 msgid.detach();
-            } else if (yyWord.at(0) == QLatin1Char('~') && yyWord.at(1).isSpace()) {
+            } else if (*ptr == QLatin1Char('~') && ptr[1].isSpace()) {
                 yyWord.remove(0, 2);
                 text = yyWord.trimmed();
                 int k = text.indexOf(QLatin1Char(' '));
                 if (k > -1)
                     extra.insert(text.left(k), text.mid(k + 1).trimmed());
                 text.clear();
-            } else if (yyWord.at(0) == QLatin1Char('%') && yyWord.at(1).isSpace()) {
+            } else if (*ptr == QLatin1Char('%') && ptr[1].isSpace()) {
                 sourcetext.reserve(sourcetext.length() + yyWord.length() - 2);
                 ushort *ptr = (ushort *)sourcetext.data() + sourcetext.length();
                 int p = 2, c;
@@ -1977,6 +1978,7 @@ void CppParser::parseInternal(ConversionData &cd, QSet<QString> &inclusions)
             }
             yyTok = getToken();
             break;
+        }
         case Tok_Arrow:
             yyTok = getToken();
             if (yyTok == Tok_tr || yyTok == Tok_trUtf8)