Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 136 insertions, 0 deletions

diff --git a/i18npool/source/inputchecker/inputsequencechecker_hi.cxx b/i18npool/source/inputchecker/inputsequencechecker_hi.cxx
new file mode 100644
index 000000000..b1f9e99f6
--- /dev/null
+++ b/i18npool/source/inputchecker/inputsequencechecker_hi.cxx
@@ -0,0 +1,136 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <inputsequencechecker_hi.hxx>
+
+
+namespace i18npool {
+
+InputSequenceChecker_hi::InputSequenceChecker_hi()
+    : InputSequenceCheckerImpl("com.sun.star.i18n.InputSequenceChecker_hi")
+{
+}
+
+InputSequenceChecker_hi::~InputSequenceChecker_hi()
+{
+}
+/* Non-Defined Class type */
+#define ND_        0
+
+/*
+ * Devanagari character type definitions
+ */
+#define UP_  1  // ChandraBindu & Anuswar
+#define NP_  2  // Visarg
+#define IV_    3  // Independent Vowels
+#define CN_    4  // Consonants except _CK & _RC
+#define CK_    5  // Consonants that can be followed by Nukta
+#define RC_    6  // Ra
+#define NM_    7  // Matra
+#define RM_    8  // Ra + HAL
+#define IM_    9  // Choti I Matra
+#define HL_    10 // HAL
+#define NK_    11 // Nukta
+#define VD_    12 // Vedic
+#define HD_    13 // Hindu Numerals
+
+/*
+ * Devanagari character type table
+ */
+const sal_uInt16 devaCT[128] = {
+/*         0,    1,    2,    3,    4,    5,    6,    7,
+           8,    9,    A,    B,    C,    D,    E,    F, */
+/* 0900 */ ND_, UP_, UP_, NP_, ND_, IV_, IV_, IV_,
+           IV_, IV_, IV_, IV_, IV_, IV_, IV_, IV_,
+/* 0910 */ IV_, IV_, IV_, IV_, IV_, CK_, CK_, CK_,
+           CN_, CN_, CN_, CN_, CK_, CN_, CN_, CN_,
+/* 0920 */ CN_, CK_, CK_, CN_, CN_, CN_, CN_, CN_,
+           CN_, CN_, CN_, CK_, CN_, CN_, CN_, CN_,
+/* 0930 */ RC_, CN_, CN_, CN_, CN_, CN_, CN_, CN_,
+           CN_, CN_, ND_, ND_, NK_, VD_, NM_, IM_,
+/* 0940 */ RM_, NM_, NM_, NM_, NM_, RM_, RM_, RM_,
+           RM_, RM_, RM_, RM_, RM_, HL_, ND_, ND_,
+/* 0950 */ ND_, VD_, VD_, VD_, VD_, ND_, ND_, ND_,
+           CN_, CN_, CN_, CN_, CN_, CN_, CN_, CN_,
+/* 0960 */ IV_, IV_, NM_, NM_, ND_, ND_, HD_, HD_,
+           HD_, HD_, HD_, HD_, HD_, HD_, HD_, HD_,
+/* 0970 */ ND_, ND_, ND_, ND_, ND_, ND_, ND_, ND_,
+           ND_, ND_, ND_, ND_, ND_, ND_, ND_, ND_,
+};
+
+/*
+ * Devanagari character composition table
+ */
+const sal_uInt16 dev_cell_check[14][14] = {
+  /*        ND, UP, NP, IV, CN, CK, RC, NM, RM, IM, HL, NK, VD, HD, */
+  /* 0  */ { 0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /* ND */
+  /* 1  */ { 0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /* UP */
+  /* 2  */ { 0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /* NP */
+  /* 3  */ { 0,  1,  1,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /* IV */
+  /* 4  */ { 0,  1,  1,  0,  0,  0,  0,  1,  1,  1,  1,  0,  0,  0 }, /* CN */
+  /* 5  */ { 0,  1,  1,  0,  0,  0,  0,  1,  1,  1,  1,  1,  0,  0 }, /* CK */
+  /* 6  */ { 0,  1,  1,  0,  0,  0,  0,  1,  1,  1,  1,  0,  0,  0 }, /* RC */
+  /* 7  */ { 0,  1,  1,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /* NM */
+  /* 8  */ { 0,  1,  1,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /* RM */
+  /* 9  */ { 0,  1,  1,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /* IM */
+  /* 10 */ { 0,  0,  0,  0,  1,  1,  1,  0,  0,  0,  0,  0,  0,  0 }, /* HL */
+  /* 11 */ { 0,  1,  1,  0,  0,  0,  0,  1,  1,  1,  1,  0,  0,  0 }, /* NK */
+  /* 12 */ { 0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }, /* VD */
+  /* 13 */ { 0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 }  /* HD */
+};
+
+bool const DEV_Composible[2][2] = {
+/* Mode 0 */    {true, true }, // PASSTHROUGH = 0
+/* Mode 1 */    {false, true}  // STRICT = 1
+};
+
+static constexpr sal_uInt16 getCharType(sal_Unicode x)
+{
+    return (x >= 0x0900 && x < 0x097f) ? devaCT[x - 0x0900] : ND_;
+}
+
+sal_Bool SAL_CALL
+InputSequenceChecker_hi::checkInputSequence(const OUString& Text,
+                                            sal_Int32       nStartPos,
+                                            sal_Unicode     inputChar,
+                                            sal_Int16       inputCheckMode)
+{
+    sal_Unicode currentChar = Text[nStartPos];
+    sal_uInt16  ch1 = getCharType(inputChar);
+    sal_uInt16  ch2 = getCharType(currentChar);
+
+    return (DEV_Composible[inputCheckMode][dev_cell_check[ch2][ch1]]);
+}
+
+sal_Int32 SAL_CALL
+InputSequenceChecker_hi::correctInputSequence(OUString& Text,
+                                            sal_Int32       nStartPos,
+                                            sal_Unicode     inputChar,
+                                            sal_Int16       inputCheckMode)
+{
+    if (checkInputSequence(Text, nStartPos, inputChar, inputCheckMode))
+        Text = Text.replaceAt(++nStartPos, 0, rtl::OUStringChar(inputChar));
+    else
+        nStartPos=Text.getLength();
+    return nStartPos;
+}
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */