Jonathan Clark
69e902d085
Implements the ODF 1.2 paragraph attribute style:writing-mode-automatic, and supporting runtime features. When set, this attribute allows programs to automatically recompute the paragraph writing mode when the contents of the paragraph have been edited. The ODF standard does not suggest any particular algorithm for automatically determining paragraph direction. This implementation uses the rules from Unicode UAX #9 3.3.1. Currently, LO will only automatically change the writing direction when new text is typed or deleted. Other known interesting cases are already tracked as separate enhancement requests. Change-Id: I49eecea36952588dc98f2a98ebce712cd2846c0c Reviewed-on: https://gerrit.libreoffice.org/c/core/+/193547 Reviewed-by: Jonathan Clark <jonathan@libreoffice.org> Tested-by: Jenkins
76 lines
2.2 KiB
C++
76 lines
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#include <sal/types.h>
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#include <cppunit/TestAssert.h>
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#include <cppunit/TestFixture.h>
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#include <cppunit/extensions/HelperMacros.h>
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#include <cppunit/plugin/TestPlugIn.h>
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#include <i18nutil/guessparadirection.hxx>
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using namespace i18nutil;
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namespace
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{
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class GuessParagraphDirectionTest : public CppUnit::TestFixture
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{
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public:
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void testEmpty();
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void testFirstStrongLTR();
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void testFirstStrongRTL();
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void testFirstStrongAR();
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void testIsolate();
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CPPUNIT_TEST_SUITE(GuessParagraphDirectionTest);
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CPPUNIT_TEST(testEmpty);
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CPPUNIT_TEST(testFirstStrongLTR);
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CPPUNIT_TEST(testFirstStrongRTL);
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CPPUNIT_TEST(testFirstStrongAR);
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CPPUNIT_TEST(testIsolate);
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CPPUNIT_TEST_SUITE_END();
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};
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void GuessParagraphDirectionTest::testEmpty()
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{
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auto aText = u""_ustr;
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CPPUNIT_ASSERT_EQUAL(ParagraphDirection::Ambiguous, GuessParagraphDirection(aText));
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}
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void GuessParagraphDirectionTest::testFirstStrongLTR()
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{
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auto aText = u"..aاא.."_ustr;
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CPPUNIT_ASSERT_EQUAL(ParagraphDirection::LeftToRight, GuessParagraphDirection(aText));
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}
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void GuessParagraphDirectionTest::testFirstStrongRTL()
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{
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auto aText = u"..אaا.."_ustr;
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CPPUNIT_ASSERT_EQUAL(ParagraphDirection::RightToLeft, GuessParagraphDirection(aText));
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}
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void GuessParagraphDirectionTest::testFirstStrongAR()
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{
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auto aText = u"..اaא.."_ustr;
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CPPUNIT_ASSERT_EQUAL(ParagraphDirection::RightToLeft, GuessParagraphDirection(aText));
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}
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void GuessParagraphDirectionTest::testIsolate()
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{
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// U+2066: LRI
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// U+2067: RLI
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// U+2069: PDI
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auto aText = u"...\u2069.\u2067aaa\u2066אאא\u2069.\u2069.."_ustr;
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CPPUNIT_ASSERT_EQUAL(ParagraphDirection::Ambiguous, GuessParagraphDirection(aText));
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}
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CPPUNIT_TEST_SUITE_REGISTRATION(GuessParagraphDirectionTest);
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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