de-uno-ize ScriptTypeDetector

leave a UnoScriptTypeDetector implementation that points to the
trivial ScriptTypeDetector for external consumers, e.g. sdext

4 files changed, 190 insertions, 0 deletions

diff --git a/i18nutil/Library_i18nutil.mk b/i18nutil/Library_i18nutil.mk
index e3de16e7244f..a05c3d017f89 100644
--- a/i18nutil/Library_i18nutil.mk
+++ b/i18nutil/Library_i18nutil.mk
@@ -48,6 +48,7 @@ $(eval $(call gb_Library_add_linked_libs,i18nutil,\
 $(eval $(call gb_Library_add_exception_objects,i18nutil,\
 	i18nutil/source/utility/casefolding \
 	i18nutil/source/utility/oneToOneMapping \
+	i18nutil/source/utility/scripttypedetector \
 	i18nutil/source/utility/unicode \
 	i18nutil/source/utility/widthfolding \
 ))
diff --git a/i18nutil/Package_inc.mk b/i18nutil/Package_inc.mk
index 92a9e71de50c..3ea2b55d46be 100644
--- a/i18nutil/Package_inc.mk
+++ b/i18nutil/Package_inc.mk
@@ -30,6 +30,7 @@ $(eval $(call gb_Package_Package,i18nutil_inc,$(SRCDIR)/i18nutil/inc))
 $(eval $(call gb_Package_add_file,i18nutil_inc,inc/i18nutil/i18nutildllapi.h,i18nutil/i18nutildllapi.h))
 $(eval $(call gb_Package_add_file,i18nutil_inc,inc/i18nutil/casefolding.hxx,i18nutil/casefolding.hxx))
 $(eval $(call gb_Package_add_file,i18nutil_inc,inc/i18nutil/oneToOneMapping.hxx,i18nutil/oneToOneMapping.hxx))
+$(eval $(call gb_Package_add_file,i18nutil_inc,inc/i18nutil/scripttypedetector.hxx,i18nutil/scripttypedetector.hxx))
 $(eval $(call gb_Package_add_file,i18nutil_inc,inc/i18nutil/unicode.hxx,i18nutil/unicode.hxx))
 $(eval $(call gb_Package_add_file,i18nutil_inc,inc/i18nutil/widthfolding.hxx,i18nutil/widthfolding.hxx))
 
diff --git a/i18nutil/inc/i18nutil/scripttypedetector.hxx b/i18nutil/inc/i18nutil/scripttypedetector.hxx
new file mode 100644
index 000000000000..9b732ef21353
--- /dev/null
+++ b/i18nutil/inc/i18nutil/scripttypedetector.hxx
@@ -0,0 +1,47 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+#ifndef _I18N_SCRIPTTYPEDETECTOR_HXX_
+#define _I18N_SCRIPTTYPEDETECTOR_HXX_
+
+#include "i18nutildllapi.h"
+#include <rtl/ustring.hxx>
+
+class I18NUTIL_DLLPUBLIC ScriptTypeDetector
+{
+public:
+    static sal_Int32 beginOfScriptDirection( const rtl::OUString& Text, sal_Int32 nPos, sal_Int16 scriptDirection );
+    static sal_Int32 endOfScriptDirection( const rtl::OUString& Text, sal_Int32 nPos, sal_Int16 scriptDirection );
+    static sal_Int16 getScriptDirection( const rtl::OUString& Text, sal_Int32 nPos, sal_Int16 defaultScriptDirection );
+    static sal_Int32 beginOfCTLScriptType( const rtl::OUString& Text, sal_Int32 nPos );
+    static sal_Int32 endOfCTLScriptType( const rtl::OUString& Text, sal_Int32 nPos );
+    static sal_Int16 getCTLScriptType( const rtl::OUString& Text, sal_Int32 nPos );
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/i18nutil/source/utility/scripttypedetector.cxx b/i18nutil/source/utility/scripttypedetector.cxx
new file mode 100644
index 000000000000..1c70f5e155f5
--- /dev/null
+++ b/i18nutil/source/utility/scripttypedetector.cxx
@@ -0,0 +1,141 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#include <com/sun/star/i18n/CTLScriptType.hpp>
+#include <com/sun/star/i18n/ScriptDirection.hpp>
+#include <com/sun/star/i18n/UnicodeScript.hpp>
+#include <i18nutil/scripttypedetector.hxx>
+#include <i18nutil/unicode.hxx>
+
+using namespace com::sun::star::i18n;
+
+static sal_Int16 scriptDirection[] = {
+    ScriptDirection::LEFT_TO_RIGHT,     // DirectionProperty_LEFT_TO_RIGHT = 0,
+    ScriptDirection::RIGHT_TO_LEFT,     // DirectionProperty_RIGHT_TO_LEFT = 1,
+    ScriptDirection::LEFT_TO_RIGHT,     // DirectionProperty_EUROPEAN_NUMBER = 2,
+    ScriptDirection::LEFT_TO_RIGHT,     // DirectionProperty_EUROPEAN_NUMBER_SEPARATOR = 3,
+    ScriptDirection::LEFT_TO_RIGHT,     // DirectionProperty_EUROPEAN_NUMBER_TERMINATOR = 4,
+    ScriptDirection::RIGHT_TO_LEFT,     // DirectionProperty_ARABIC_NUMBER = 5,
+    ScriptDirection::NEUTRAL,           // DirectionProperty_COMMON_NUMBER_SEPARATOR = 6,
+    ScriptDirection::NEUTRAL,           // DirectionProperty_BLOCK_SEPARATOR = 7,
+    ScriptDirection::NEUTRAL,           // DirectionProperty_SEGMENT_SEPARATOR = 8,
+    ScriptDirection::NEUTRAL,           // DirectionProperty_WHITE_SPACE_NEUTRAL = 9,
+    ScriptDirection::NEUTRAL,           // DirectionProperty_OTHER_NEUTRAL = 10,
+    ScriptDirection::LEFT_TO_RIGHT,     // DirectionProperty_LEFT_TO_RIGHT_EMBEDDING = 11,
+    ScriptDirection::LEFT_TO_RIGHT,     // DirectionProperty_LEFT_TO_RIGHT_OVERRIDE = 12,
+    ScriptDirection::RIGHT_TO_LEFT,     // DirectionProperty_RIGHT_TO_LEFT_ARABIC = 13,
+    ScriptDirection::RIGHT_TO_LEFT,     // DirectionProperty_RIGHT_TO_LEFT_EMBEDDING = 14,
+    ScriptDirection::RIGHT_TO_LEFT,     // DirectionProperty_RIGHT_TO_LEFT_OVERRIDE = 15,
+    ScriptDirection::NEUTRAL,           // DirectionProperty_POP_DIRECTIONAL_FORMAT = 16,
+    ScriptDirection::NEUTRAL,           // DirectionProperty_DIR_NON_SPACING_MARK = 17,
+    ScriptDirection::NEUTRAL,           // DirectionProperty_BOUNDARY_NEUTRAL = 18,
+};
+
+sal_Int16 ScriptTypeDetector::getScriptDirection( const rtl::OUString& Text, sal_Int32 nPos, sal_Int16 defaultScriptDirection )
+{
+    sal_Int16 dir = scriptDirection[unicode::getUnicodeDirection(Text[nPos])];
+    return (dir == ScriptDirection::NEUTRAL) ? defaultScriptDirection : dir;
+}
+
+// return value '-1' means either the direction on nPos is not same as scriptDirection or nPos is out of range.
+sal_Int32 ScriptTypeDetector::beginOfScriptDirection( const rtl::OUString& Text, sal_Int32 nPos, sal_Int16 direction )
+{
+        sal_Int32 cPos = nPos;
+
+        if (cPos < Text.getLength()) {
+            for (; cPos >= 0; cPos--) {
+                if (direction != getScriptDirection(Text, cPos, direction))
+                    break;
+            }
+        }
+        return cPos == nPos ? -1 : cPos + 1;
+}
+
+sal_Int32 ScriptTypeDetector::endOfScriptDirection( const rtl::OUString& Text, sal_Int32 nPos, sal_Int16 direction )
+{
+        sal_Int32 cPos = nPos;
+        sal_Int32 len = Text.getLength();
+
+        if (cPos >=0) {
+            for (; cPos < len; cPos++) {
+                if (direction != getScriptDirection(Text, cPos, direction))
+                    break;
+            }
+        }
+        return cPos == nPos ? -1 : cPos;
+}
+
+sal_Int16 ScriptTypeDetector::getCTLScriptType( const rtl::OUString& Text, sal_Int32 nPos )
+{
+    static ScriptTypeList typeList[] = {
+        { UnicodeScript_kHebrew, UnicodeScript_kHebrew, CTLScriptType::CTL_HEBREW },    // 10
+        { UnicodeScript_kArabic, UnicodeScript_kArabic, CTLScriptType::CTL_ARABIC },    // 11
+        { UnicodeScript_kDevanagari, UnicodeScript_kDevanagari, CTLScriptType::CTL_INDIC },     // 14
+        { UnicodeScript_kThai, UnicodeScript_kThai, CTLScriptType::CTL_THAI },      // 24
+        { UnicodeScript_kScriptCount, UnicodeScript_kScriptCount,   CTLScriptType::CTL_UNKNOWN }    // 88
+    };
+
+    return unicode::getUnicodeScriptType(Text[nPos], typeList, CTLScriptType::CTL_UNKNOWN);
+}
+
+// Begin of Script Type is inclusive.
+sal_Int32 ScriptTypeDetector::beginOfCTLScriptType( const rtl::OUString& Text, sal_Int32 nPos )
+{
+    if (nPos < 0)
+        return 0;
+    else if (nPos >= Text.getLength())
+        return Text.getLength();
+    else {
+        sal_Int16 cType = getCTLScriptType(Text, nPos);
+        for (nPos--; nPos >= 0; nPos--) {
+            if (cType != getCTLScriptType(Text, nPos))
+                break;
+        }
+        return nPos + 1;
+    }
+}
+
+// End of the Script Type is exclusive, the return value pointing to the begin of next script type
+sal_Int32 ScriptTypeDetector::endOfCTLScriptType( const rtl::OUString& Text, sal_Int32 nPos )
+{
+    if (nPos < 0)
+        return 0;
+    else if (nPos >= Text.getLength())
+        return Text.getLength();
+    else {
+        sal_Int16 cType = getCTLScriptType(Text, nPos);
+        sal_Int32 len = Text.getLength();
+        for (nPos++; nPos < len; nPos++) {
+            if (cType != getCTLScriptType(Text, nPos))
+                break;
+        }
+        return nPos;
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */