X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fsupport%2Fqstring_helpers.cpp;h=7e339def452beef377cfa3d476d0adbd34825dee;hb=76e99e9a20cf635d20effa597551f3a9af484465;hp=ded445fc72992efb38f64486e2a7a9b5cc7da2a1;hpb=9f9d9500c0825020844da261eb2e86922355aedb;p=lyx.git

diff --git a/src/support/qstring_helpers.cpp b/src/support/qstring_helpers.cpp
index ded445fc72..7e339def45 100644
--- a/src/support/qstring_helpers.cpp
+++ b/src/support/qstring_helpers.cpp
@@ -12,13 +12,24 @@
 
 #include <config.h>
 
+#include "support/qstring_helpers.h"
+
+#include "support/debug.h"
 #include "support/docstring.h"
+#include "support/qstring_helpers.h"
 
+#include <QRegExp>
 #include <QString>
 #include <QVector>
 
 namespace lyx {
 
+LyXErr & operator<<(LyXErr & err, QString const & str)
+{
+	return err << fromqstr(str);
+}
+
+
 QString toqstr(char const * str)
 {
 	return QString::fromUtf8(str);
@@ -34,6 +45,8 @@ QString toqstr(docstring const & ucs4)
 {
 	// If possible we let qt do the work, since this version does not
 	// need to be superfast.
+	if (ucs4.empty())
+		return QString();
 	return QString::fromUcs4((uint const *)ucs4.data(), ucs4.length());
 }
 
@@ -56,4 +69,32 @@ std::string fromqstr(QString const & str)
 	return str.isEmpty() ? std::string() : std::string(str.toUtf8());
 }
 
+QString charFilterRegExp(QString const & filter)
+{
+    QString re = ".*";
+    for (int i = 0; i < filter.length(); ++i) {
+        QChar c = filter[i];
+        if (c.isLower())
+            re +=  "["+ QRegExp::escape(c) + QRegExp::escape(c.toUpper()) + "]";
+        else
+            re +=  QRegExp::escape(c);
+    }
+    return re;
+}
+
+QString charFilterRegExpC(QString const & filter)
+{
+	QString re = "(";
+	for (int i = 0; i < filter.length(); ++i) {
+		QChar c = filter[i];
+		if (c.isLower())
+			re +=  "["+ QRegExp::escape(c) + QRegExp::escape(c.toUpper()) + "]";
+		else
+			re +=  QRegExp::escape(c);
+	}
+	return re + ")";
+}
+
+
+
 } // namespace lyx