1 files changed, 153 insertions, 0 deletions
diff --git a/vcl/inc/scrptrun.h b/vcl/inc/scrptrun.h
new file mode 100644
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+++ b/vcl/inc/scrptrun.h
@@ -0,0 +1,153 @@
+/*
+ *******************************************************************************
+ *
+ *   Copyright (c) 1995-2013 International Business Machines Corporation and others
+ *
+ *   All rights reserved.
+ *
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy of
+ *   this software and associated documentation files (the "Software"), to deal in
+ *   the Software without restriction, including without limitation the rights to
+ *   use, copy, modify, merge, publish, distribute, and/or sell copies of the
+ *   Software, and to permit persons to whom the Software is furnished to do so,
+ *   provided that the above copyright notice(s) and this permission notice appear
+ *   in all copies of the Software and that both the above copyright notice(s) and
+ *   this permission notice appear in supporting documentation.
+ *
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN
+ *   NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS NOTICE BE
+ *   LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY
+ *   DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ *   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ *   CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ *   Except as contained in this notice, the name of a copyright holder shall not be
+ *   used in advertising or otherwise to promote the sale, use or other dealings in
+ *   this Software without prior written authorization of the copyright holder.
+ *
+ *******************************************************************************
+ *   file name:  scrptrun.h
+ *
+ *   created on: 10/17/2001
+ *   created by: Eric R. Mader
+ */
+
+#ifndef INCLUDED_VCL_INC_SCRPTRUN_H
+#define INCLUDED_VCL_INC_SCRPTRUN_H
+
+#include <sal/config.h>
+
+#include <vcl/dllapi.h>
+
+#include <unicode/uobject.h>
+#include <unicode/uscript.h>
+#include <vector>
+
+namespace vcl
+{
+struct ParenStackEntry
+{
+    int32_t pairIndex;
+    UScriptCode scriptCode;
+    ParenStackEntry()
+        : pairIndex(0)
+        , scriptCode(USCRIPT_INVALID_CODE)
+    {
+    }
+};
+
+class VCL_DLLPUBLIC ScriptRun final : public icu::UObject
+{
+public:
+    ScriptRun(const UChar chars[], int32_t length);
+
+    void reset();
+
+    void reset(int32_t start, int32_t count);
+
+    void reset(const UChar chars[], int32_t start, int32_t length);
+
+    int32_t getScriptStart() const;
+
+    int32_t getScriptEnd() const;
+
+    UScriptCode getScriptCode() const;
+
+    UBool next();
+
+    /**
+s     * ICU "poor man's RTTI", returns a UClassID for the actual class.
+     *
+     * @stable ICU 2.2
+     */
+    virtual UClassID getDynamicClassID() const override { return getStaticClassID(); }
+
+    /**
+     * ICU "poor man's RTTI", returns a UClassID for this class.
+     *
+     * @stable ICU 2.2
+     */
+    static UClassID getStaticClassID()
+    {
+        return static_cast<UClassID>(const_cast<char*>(&fgClassID));
+    }
+
+private:
+    int32_t charStart;
+    int32_t charLimit;
+    const UChar* charArray;
+
+    int32_t scriptStart;
+    int32_t scriptEnd;
+    UScriptCode scriptCode;
+
+    std::vector<ParenStackEntry> parenStack;
+    int32_t parenSP;
+
+    /**
+     * The address of this static class variable serves as this class's ID
+     * for ICU "poor man's RTTI".
+     */
+    static const char fgClassID;
+};
+
+inline ScriptRun::ScriptRun(const UChar chars[], int32_t length)
+{
+    parenStack.reserve(128);
+    reset(chars, 0, length);
+}
+
+inline int32_t ScriptRun::getScriptStart() const { return scriptStart; }
+
+inline int32_t ScriptRun::getScriptEnd() const { return scriptEnd; }
+
+inline UScriptCode ScriptRun::getScriptCode() const { return scriptCode; }
+
+inline void ScriptRun::reset()
+{
+    scriptStart = charStart;
+    scriptEnd = charStart;
+    scriptCode = USCRIPT_INVALID_CODE;
+    parenSP = -1;
+    parenStack.clear();
+}
+
+inline void ScriptRun::reset(int32_t start, int32_t length)
+{
+    charStart = start;
+    charLimit = start + length;
+
+    reset();
+}
+
+inline void ScriptRun::reset(const UChar chars[], int32_t start, int32_t length)
+{
+    charArray = chars;
+
+    reset(start, length);
+}
+}
+
+#endif