Final disentanglement between sal and sal_textenc.

1 files changed, 193 insertions, 0 deletions

diff --git a/sal/textenc/handleundefinedunicodetotextchar.cxx b/sal/textenc/handleundefinedunicodetotextchar.cxx
new file mode 100644
index 000000000000..cebe302d3e5f
--- /dev/null
+++ b/sal/textenc/handleundefinedunicodetotextchar.cxx
@@ -0,0 +1,193 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * Version: MPL 1.1 / GPLv3+ / LGPLv3+
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License or as specified alternatively below. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * Major Contributor(s):
+ * [ Copyright (C) 2012 Red Hat, Inc., Stephan Bergmann <sbergman@redhat.com>
+ *   (initial developer) ]
+ *
+ * All Rights Reserved.
+ *
+ * For minor contributions see the git repository.
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 3 or later (the "GPLv3+"), or
+ * the GNU Lesser General Public License Version 3 or later (the "LGPLv3+"),
+ * in which case the provisions of the GPLv3+ or the LGPLv3+ are applicable
+ * instead of those above.
+ */
+
+#include "sal/config.h"
+
+#include "rtl/textcvt.h"
+#include "sal/types.h"
+
+#include "handleundefinedunicodetotextchar.hxx"
+#include "tenchelp.hxx"
+
+namespace {
+
+bool ImplIsUnicodeIgnoreChar(sal_Unicode c, sal_uInt32 nFlags)
+{
+    return
+        ((nFlags & RTL_UNICODETOTEXT_FLAGS_NONSPACING_IGNORE) != 0
+         && ImplIsZeroWidth(c))
+        || ((nFlags & RTL_UNICODETOTEXT_FLAGS_CONTROL_IGNORE) != 0
+            && ImplIsControlOrFormat(c))
+        || ((nFlags & RTL_UNICODETOTEXT_FLAGS_PRIVATE_IGNORE) != 0
+            && ImplIsPrivateUse(c));
+}
+
+bool ImplGetUndefinedAsciiMultiByte(sal_uInt32 nFlags,
+                                        char * pBuf,
+                                        sal_Size nMaxLen)
+{
+    if (nMaxLen == 0)
+        return false;
+    switch (nFlags & RTL_UNICODETOTEXT_FLAGS_UNDEFINED_MASK)
+    {
+    case RTL_UNICODETOTEXT_FLAGS_UNDEFINED_0:
+        *pBuf = 0x00;
+        break;
+
+    case RTL_UNICODETOTEXT_FLAGS_UNDEFINED_QUESTIONMARK:
+    default: /* RTL_UNICODETOTEXT_FLAGS_UNDEFINED_DEFAULT */
+        *pBuf = 0x3F;
+        break;
+
+    case RTL_UNICODETOTEXT_FLAGS_UNDEFINED_UNDERLINE:
+        *pBuf = 0x5F;
+        break;
+    }
+    return true;
+}
+
+bool ImplGetInvalidAsciiMultiByte(sal_uInt32 nFlags,
+                                      char * pBuf,
+                                      sal_Size nMaxLen)
+{
+    if (nMaxLen == 0)
+        return false;
+    switch (nFlags & RTL_UNICODETOTEXT_FLAGS_UNDEFINED_MASK)
+    {
+    case RTL_UNICODETOTEXT_FLAGS_INVALID_0:
+        *pBuf = 0x00;
+        break;
+
+    case RTL_UNICODETOTEXT_FLAGS_INVALID_QUESTIONMARK:
+    default: /* RTL_UNICODETOTEXT_FLAGS_INVALID_DEFAULT */
+        *pBuf = 0x3F;
+        break;
+
+    case RTL_UNICODETOTEXT_FLAGS_INVALID_UNDERLINE:
+        *pBuf = 0x5F;
+        break;
+    }
+    return true;
+}
+
+}
+
+bool sal::detail::textenc::handleUndefinedUnicodeToTextChar(
+    sal_Unicode const ** ppSrcBuf, sal_Unicode const * pEndSrcBuf,
+    char ** ppDestBuf, char const * pEndDestBuf, sal_uInt32 nFlags,
+    sal_uInt32 * pInfo)
+{
+    sal_Unicode c = **ppSrcBuf;
+
+    /* Should the private character map to one byte */
+    if ( (c >= RTL_TEXTCVT_BYTE_PRIVATE_START) && (c <= RTL_TEXTCVT_BYTE_PRIVATE_END) )
+    {
+        if ( nFlags & RTL_UNICODETOTEXT_FLAGS_PRIVATE_MAPTO0 )
+        {
+            **ppDestBuf = (char)(sal_uChar)(c-RTL_TEXTCVT_BYTE_PRIVATE_START);
+            (*ppDestBuf)++;
+            (*ppSrcBuf)++;
+            return true;
+        }
+    }
+
+    /* Should this character ignored (Private, Non Spacing, Control) */
+    if ( ImplIsUnicodeIgnoreChar( c, nFlags ) )
+    {
+        (*ppSrcBuf)++;
+        return true;
+    }
+
+    /* Surrogates Characters should result in */
+    /* one replacement character */
+    if (ImplIsHighSurrogate(c))
+    {
+        if ( *ppSrcBuf == pEndSrcBuf )
+        {
+            *pInfo |= RTL_UNICODETOTEXT_INFO_ERROR | RTL_UNICODETOTEXT_INFO_SRCBUFFERTOSMALL;
+            return false;
+        }
+
+        c = *((*ppSrcBuf)+1);
+        if (ImplIsLowSurrogate(c))
+            (*ppSrcBuf)++;
+        else
+        {
+            *pInfo |= RTL_UNICODETOTEXT_INFO_INVALID;
+            if ( (nFlags & RTL_UNICODETOTEXT_FLAGS_INVALID_MASK) == RTL_UNICODETOTEXT_FLAGS_INVALID_ERROR )
+            {
+                *pInfo |= RTL_UNICODETOTEXT_INFO_ERROR;
+                return false;
+            }
+            else if ( (nFlags & RTL_UNICODETOTEXT_FLAGS_INVALID_MASK) == RTL_UNICODETOTEXT_FLAGS_INVALID_IGNORE )
+            {
+                (*ppSrcBuf)++;
+                return true;
+            }
+            else if (ImplGetInvalidAsciiMultiByte(nFlags,
+                                                  *ppDestBuf,
+                                                  pEndDestBuf - *ppDestBuf))
+            {
+                ++*ppSrcBuf;
+                ++*ppDestBuf;
+                return true;
+            }
+            else
+            {
+                *pInfo |= RTL_UNICODETOTEXT_INFO_ERROR
+                              | RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL;
+                return false;
+            }
+        }
+    }
+
+    *pInfo |= RTL_UNICODETOTEXT_INFO_UNDEFINED;
+    if ( (nFlags & RTL_UNICODETOTEXT_FLAGS_UNDEFINED_MASK) == RTL_UNICODETOTEXT_FLAGS_UNDEFINED_ERROR )
+    {
+        *pInfo |= RTL_UNICODETOTEXT_INFO_ERROR;
+        return false;
+    }
+    else if ( (nFlags & RTL_UNICODETOTEXT_FLAGS_UNDEFINED_MASK) == RTL_UNICODETOTEXT_FLAGS_UNDEFINED_IGNORE )
+        (*ppSrcBuf)++;
+    else if (ImplGetUndefinedAsciiMultiByte(nFlags,
+                                            *ppDestBuf,
+                                            pEndDestBuf - *ppDestBuf))
+    {
+        ++*ppSrcBuf;
+        ++*ppDestBuf;
+    }
+    else
+    {
+        *pInfo |= RTL_UNICODETOTEXT_INFO_ERROR
+                      | RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL;
+        return false;
+    }
+
+    return true;
+}