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, 380 insertions, 0 deletions

diff --git a/vcl/source/helper/strhelper.cxx b/vcl/source/helper/strhelper.cxx
new file mode 100644
index 000000000..9d05b2c98
--- /dev/null
+++ b/vcl/source/helper/strhelper.cxx
@@ -0,0 +1,380 @@
+/* -*- 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 <strhelper.hxx>
+
+namespace  {
+
+bool isSpace( sal_Unicode cChar )
+{
+    return
+        cChar == ' '    || cChar == '\t'    ||
+        cChar == '\r'   || cChar == '\n'    ||
+        cChar == 0x0c   || cChar == 0x0b;
+}
+
+bool isProtect( sal_Unicode cChar )
+{
+    return cChar == '`' || cChar == '\'' || cChar == '"';
+}
+
+void CopyUntil( char*& pTo, const char*& pFrom, char cUntil, bool bIncludeUntil = false )
+{
+    do
+    {
+        if( *pFrom == '\\' )
+        {
+            pFrom++;
+            if( *pFrom )
+            {
+                *pTo = *pFrom;
+                pTo++;
+            }
+        }
+        else if( bIncludeUntil || ! isProtect( *pFrom ) )
+        {
+            *pTo = *pFrom;
+            pTo++;
+        }
+        pFrom++;
+    } while( *pFrom && *pFrom != cUntil );
+    // copy the terminating character unless zero or protector
+    if( ! isProtect( *pFrom ) || bIncludeUntil )
+    {
+        *pTo = *pFrom;
+        if( *pTo )
+            pTo++;
+    }
+    if( *pFrom )
+        pFrom++;
+}
+
+void CopyUntil( sal_Unicode*& pTo, const sal_Unicode*& pFrom, sal_Unicode cUntil, bool bIncludeUntil = false )
+{
+    do
+    {
+        if( *pFrom == '\\' )
+        {
+            pFrom++;
+            if( *pFrom )
+            {
+                *pTo = *pFrom;
+                pTo++;
+            }
+        }
+        else if( bIncludeUntil || ! isProtect( *pFrom ) )
+        {
+            *pTo = *pFrom;
+            pTo++;
+        }
+        if( *pFrom )
+            pFrom++;
+    } while( *pFrom && *pFrom != cUntil );
+    // copy the terminating character unless zero or protector
+    if( ! isProtect( *pFrom ) || bIncludeUntil )
+    {
+        *pTo = *pFrom;
+        if( *pTo )
+            pTo++;
+    }
+    if( *pFrom )
+        pFrom++;
+}
+
+}
+
+namespace psp {
+
+OUString GetCommandLineToken( int nToken, const OUString& rLine )
+{
+    sal_Int32 nLen = rLine.getLength();
+    if( ! nLen )
+        return OUString();
+
+    int nActualToken = 0;
+    sal_Unicode* pBuffer = static_cast<sal_Unicode*>(alloca( sizeof(sal_Unicode)*( nLen + 1 ) ));
+    const sal_Unicode* pRun = rLine.getStr();
+    sal_Unicode* pLeap = nullptr;
+
+    while( *pRun && nActualToken <= nToken )
+    {
+        while( *pRun && isSpace( *pRun ) )
+            pRun++;
+        pLeap = pBuffer;
+        while( *pRun && ! isSpace( *pRun ) )
+        {
+            if( *pRun == '\\' )
+            {
+                // escapement
+                pRun++;
+                *pLeap = *pRun;
+                pLeap++;
+                if( *pRun )
+                    pRun++;
+            }
+            else if( *pRun == '`' )
+                CopyUntil( pLeap, pRun, '`' );
+            else if( *pRun == '\'' )
+                CopyUntil( pLeap, pRun, '\'' );
+            else if( *pRun == '"' )
+                CopyUntil( pLeap, pRun, '"' );
+            else
+            {
+                *pLeap = *pRun;
+                pLeap++;
+                pRun++;
+            }
+        }
+        if( nActualToken != nToken )
+            pBuffer[0] = 0;
+        nActualToken++;
+    }
+
+    *pLeap = 0;
+
+    return OUString(pBuffer);
+}
+
+OString GetCommandLineToken(int nToken, const OString& rLine)
+{
+    sal_Int32 nLen = rLine.getLength();
+    if (!nLen)
+        return rLine;
+
+    int nActualToken = 0;
+    char* pBuffer = static_cast<char*>(alloca( nLen + 1 ));
+    const char* pRun = rLine.getStr();
+    char* pLeap = nullptr;
+
+    while( *pRun && nActualToken <= nToken )
+    {
+        while( *pRun && isSpace( *pRun ) )
+            pRun++;
+        pLeap = pBuffer;
+        while( *pRun && ! isSpace( *pRun ) )
+        {
+            if( *pRun == '\\' )
+            {
+                // escapement
+                pRun++;
+                *pLeap = *pRun;
+                pLeap++;
+                if( *pRun )
+                    pRun++;
+            }
+            else if( *pRun == '`' )
+                CopyUntil( pLeap, pRun, '`' );
+            else if( *pRun == '\'' )
+                CopyUntil( pLeap, pRun, '\'' );
+            else if( *pRun == '"' )
+                CopyUntil( pLeap, pRun, '"' );
+            else
+            {
+                *pLeap = *pRun;
+                pLeap++;
+                pRun++;
+            }
+        }
+        if( nActualToken != nToken )
+            pBuffer[0] = 0;
+        nActualToken++;
+    }
+
+    *pLeap = 0;
+
+    return pBuffer;
+}
+
+int GetCommandLineTokenCount(const OUString& rLine)
+{
+    if (rLine.isEmpty())
+        return 0;
+
+    int nTokenCount = 0;
+    const sal_Unicode *pRun = rLine.getStr();
+
+    while( *pRun )
+    {
+        while( *pRun && isSpace( *pRun ) )
+            pRun++;
+        if( ! *pRun )
+            break;
+        while( *pRun && ! isSpace( *pRun ) )
+        {
+            if( *pRun == '\\' )
+            {
+                // escapement
+                pRun++;
+                if( *pRun )
+                    pRun++;
+            }
+            else if( *pRun == '`' )
+            {
+                do pRun++; while( *pRun && *pRun != '`' );
+                if( *pRun )
+                    pRun++;
+            }
+            else if( *pRun == '\'' )
+            {
+                do pRun++; while( *pRun && *pRun != '\'' );
+                if( *pRun )
+                    pRun++;
+            }
+            else if( *pRun == '"' )
+            {
+                do pRun++; while( *pRun && *pRun != '"' );
+                if( *pRun )
+                    pRun++;
+            }
+            else
+                pRun++;
+        }
+        nTokenCount++;
+    }
+
+    return nTokenCount;
+}
+
+OUString WhitespaceToSpace( std::u16string_view rLine, bool bProtect )
+{
+    size_t nLen = rLine.size();
+    if( ! nLen )
+        return OUString();
+
+    sal_Unicode *pBuffer = static_cast<sal_Unicode*>(alloca( sizeof(sal_Unicode)*(nLen + 1) ));
+    const sal_Unicode *pRun = rLine.data();
+    const sal_Unicode * const pEnd = rLine.data() + rLine.size();
+    sal_Unicode *pLeap = pBuffer;
+
+    while( pRun != pEnd )
+    {
+        if( pRun != pEnd && isSpace( *pRun ) )
+        {
+            *pLeap = ' ';
+            pLeap++;
+            pRun++;
+        }
+        while( pRun != pEnd && isSpace( *pRun ) )
+            pRun++;
+        while( pRun != pEnd && ! isSpace( *pRun ) )
+        {
+            if( *pRun == '\\' )
+            {
+                // escapement
+                pRun++;
+                *pLeap = *pRun;
+                pLeap++;
+                if( pRun != pEnd )
+                    pRun++;
+            }
+            else if( bProtect && *pRun == '`' )
+                CopyUntil( pLeap, pRun, '`', true );
+            else if( bProtect && *pRun == '\'' )
+                CopyUntil( pLeap, pRun, '\'', true );
+            else if( bProtect && *pRun == '"' )
+                CopyUntil( pLeap, pRun, '"', true );
+            else
+            {
+                *pLeap = *pRun;
+                ++pLeap;
+                ++pRun;
+            }
+        }
+    }
+
+    *pLeap = 0;
+
+    // there might be a space at beginning or end
+    if (pLeap > pBuffer)
+    {
+        pLeap--;
+        if( *pLeap == ' ' )
+            *pLeap = 0;
+    }
+
+    return OUString(*pBuffer == ' ' ? pBuffer+1 : pBuffer);
+}
+
+OString WhitespaceToSpace(std::string_view rLine)
+{
+    size_t nLen = rLine.size();
+    if (!nLen)
+        return OString();
+
+    char *pBuffer = static_cast<char*>(alloca( nLen + 1 ));
+    const char *pRun = rLine.data();
+    const char * const pEnd = rLine.data() + rLine.size();
+    char *pLeap = pBuffer;
+
+    while( pRun != pEnd )
+    {
+        if( pRun != pEnd && isSpace( *pRun ) )
+        {
+            *pLeap = ' ';
+            pLeap++;
+            pRun++;
+        }
+        while( pRun != pEnd && isSpace( *pRun ) )
+            pRun++;
+        while( pRun != pEnd && ! isSpace( *pRun ) )
+        {
+            if( *pRun == '\\' )
+            {
+                // escapement
+                pRun++;
+                *pLeap = *pRun;
+                pLeap++;
+                if( pRun != pEnd )
+                    pRun++;
+            }
+            else if( *pRun == '`' )
+                CopyUntil( pLeap, pRun, '`', true );
+            else if( *pRun == '\'' )
+                CopyUntil( pLeap, pRun, '\'', true );
+            else if( *pRun == '"' )
+                CopyUntil( pLeap, pRun, '"', true );
+            else
+            {
+                *pLeap = *pRun;
+                ++pLeap;
+                ++pRun;
+            }
+        }
+    }
+
+    *pLeap = 0;
+
+    // there might be a space at beginning or end
+    assert(pLeap > pBuffer);
+    pLeap--;
+#if defined(__GNUC__) && __GNUC__ == 12
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
+#endif
+    if( *pLeap == ' ' )
+        *pLeap = 0;
+#if defined(__GNUC__) && __GNUC__ == 12
+#pragma GCC diagnostic pop
+#endif
+    return *pBuffer == ' ' ? pBuffer+1 : pBuffer;
+}
+
+} // namespace
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */