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, 556 insertions, 0 deletions

diff --git a/svl/source/misc/adrparse.cxx b/svl/source/misc/adrparse.cxx
new file mode 100644
index 000000000..19e869a09
--- /dev/null
+++ b/svl/source/misc/adrparse.cxx
@@ -0,0 +1,556 @@
+/* -*- 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 <rtl/ustrbuf.hxx>
+#include <svl/adrparse.hxx>
+
+namespace
+{
+
+enum ElementType { ELEMENT_START, ELEMENT_DELIM, ELEMENT_ITEM, ELEMENT_END };
+
+struct ParsedAddrSpec
+{
+    sal_Unicode const * m_pBegin;
+    sal_Unicode const * m_pEnd;
+    ElementType m_eLastElem;
+    bool m_bAtFound;
+    bool m_bReparse;
+
+    ParsedAddrSpec() { reset(); }
+
+    bool isPoorlyValid() const { return m_eLastElem >= ELEMENT_ITEM; }
+
+    bool isValid() const { return isPoorlyValid() && m_bAtFound; }
+
+    void reset();
+
+    void finish();
+};
+
+void ParsedAddrSpec::reset()
+{
+    m_pBegin = nullptr;
+    m_pEnd = nullptr;
+    m_eLastElem = ELEMENT_START;
+    m_bAtFound = false;
+    m_bReparse = false;
+}
+
+void ParsedAddrSpec::finish()
+{
+    if (isPoorlyValid())
+        m_eLastElem = ELEMENT_END;
+    else
+        reset();
+}
+
+}
+
+class SvAddressParser_Impl
+{
+    enum State { BEFORE_COLON, BEFORE_LESS, AFTER_LESS, AFTER_GREATER };
+
+    enum TokenType: sal_uInt32 {
+        TOKEN_QUOTED = 0x80000000, TOKEN_DOMAIN, TOKEN_COMMENT, TOKEN_ATOM };
+
+    sal_Unicode const * m_pInputPos;
+    sal_Unicode const * m_pInputEnd;
+    sal_uInt32 m_nCurToken;
+    sal_Unicode const * m_pCurTokenBegin;
+    sal_Unicode const * m_pCurTokenEnd;
+    ParsedAddrSpec m_aOuterAddrSpec;
+    ParsedAddrSpec m_aInnerAddrSpec;
+    ParsedAddrSpec * m_pAddrSpec;
+    State m_eState;
+    TokenType m_eType;
+
+    inline void reset();
+
+    void addTokenToAddrSpec(ElementType eTokenElem);
+
+    bool readToken();
+
+    static OUString reparse(sal_Unicode const * pBegin,
+                            sal_Unicode const * pEnd);
+
+public:
+    SvAddressParser_Impl(SvAddressParser * pParser, const OUString& rIn);
+};
+
+inline void SvAddressParser_Impl::reset()
+{
+    m_aOuterAddrSpec.reset();
+    m_aInnerAddrSpec.reset();
+    m_pAddrSpec = &m_aOuterAddrSpec;
+    m_eState = BEFORE_COLON;
+    m_eType = TOKEN_ATOM;
+}
+
+void SvAddressParser_Impl::addTokenToAddrSpec(ElementType eTokenElem)
+{
+    if (!m_pAddrSpec->m_pBegin)
+        m_pAddrSpec->m_pBegin = m_pCurTokenBegin;
+    else if (m_pAddrSpec->m_pEnd < m_pCurTokenBegin)
+        m_pAddrSpec->m_bReparse = true;
+    m_pAddrSpec->m_pEnd = m_pCurTokenEnd;
+    m_pAddrSpec->m_eLastElem = eTokenElem;
+}
+
+
+//  SvAddressParser_Impl
+
+
+bool SvAddressParser_Impl::readToken()
+{
+    m_nCurToken = m_eType;
+    switch (m_eType)
+    {
+        case TOKEN_QUOTED:
+        {
+            m_pCurTokenBegin = m_pInputPos - 1;
+            bool bEscaped = false;
+            for (;;)
+            {
+                if (m_pInputPos >= m_pInputEnd)
+                    return false;
+                sal_Unicode cChar = *m_pInputPos++;
+                if (bEscaped)
+                {
+                    bEscaped = false;
+                }
+                else if (cChar == '"')
+                {
+                    m_pCurTokenEnd = m_pInputPos;
+                    return true;
+                }
+                else if (cChar == '\\')
+                    bEscaped = true;
+            }
+        }
+
+        case TOKEN_DOMAIN:
+        {
+            m_pCurTokenBegin = m_pInputPos - 1;
+            bool bEscaped = false;
+            for (;;)
+            {
+                if (m_pInputPos >= m_pInputEnd)
+                    return false;
+                sal_Unicode cChar = *m_pInputPos++;
+                if (bEscaped)
+                    bEscaped = false;
+                else if (cChar == ']')
+                {
+                    m_pCurTokenEnd = m_pInputPos;
+                    return true;
+                }
+                else if (cChar == '\\')
+                    bEscaped = true;
+            }
+        }
+
+        case TOKEN_COMMENT:
+        {
+            m_pCurTokenBegin = m_pInputPos - 1;
+            bool bEscaped = false;
+            int nLevel = 0;
+            for (;;)
+            {
+                if (m_pInputPos >= m_pInputEnd)
+                    return false;
+                sal_Unicode cChar = *m_pInputPos++;
+                if (bEscaped)
+                {
+                    bEscaped = false;
+                }
+                else if (cChar == '(')
+                {
+                    ++nLevel;
+                }
+                else if (cChar == ')')
+                    if (nLevel)
+                    {
+                        --nLevel;
+                    }
+                    else
+                        return true;
+                else if (cChar == '\\')
+                {
+                    bEscaped = true;
+                }
+            }
+        }
+
+        default:
+        {
+            sal_Unicode cChar;
+            for (;;)
+            {
+                if (m_pInputPos >= m_pInputEnd)
+                    return false;
+                cChar = *m_pInputPos++;
+                if (cChar > ' ' && cChar != 0x7F) // DEL
+                    break;
+            }
+            m_pCurTokenBegin = m_pInputPos - 1;
+            if (cChar == '"' || cChar == '(' || cChar == ')' || cChar == ','
+                || cChar == '.' || cChar == ':' || cChar == ';'
+                || cChar == '<' || cChar == '>' || cChar == '@'
+                || cChar == '[' || cChar == '\\' || cChar == ']')
+            {
+                m_nCurToken = cChar;
+                m_pCurTokenEnd = m_pInputPos;
+                return true;
+            }
+            else
+                for (;;)
+                {
+                    if (m_pInputPos >= m_pInputEnd)
+                    {
+                        m_pCurTokenEnd = m_pInputPos;
+                        return true;
+                    }
+                    cChar = *m_pInputPos++;
+                    if (cChar <= ' ' || cChar == '"' || cChar == '('
+                        || cChar == ')' || cChar == ',' || cChar == '.'
+                        || cChar == ':' || cChar == ';' || cChar == '<'
+                        || cChar == '>' || cChar == '@' || cChar == '['
+                        || cChar == '\\' || cChar == ']'
+                        || cChar == 0x7F) // DEL
+                    {
+                        m_pCurTokenEnd = --m_pInputPos;
+                        return true;
+                    }
+                }
+        }
+    }
+}
+
+// static
+OUString SvAddressParser_Impl::reparse(sal_Unicode const * pBegin,
+                                       sal_Unicode const * pEnd)
+{
+    OUStringBuffer aResult;
+    TokenType eMode = TOKEN_ATOM;
+    bool bEscaped = false;
+    int nLevel = 0;
+    while (pBegin < pEnd)
+    {
+        sal_Unicode cChar = *pBegin++;
+        switch (eMode)
+        {
+        case TOKEN_QUOTED:
+            if (bEscaped)
+            {
+                aResult.append(cChar);
+                bEscaped = false;
+            }
+            else if (cChar == '"')
+            {
+                aResult.append(cChar);
+                eMode = TOKEN_ATOM;
+            }
+            else if (cChar == '\\')
+            {
+                aResult.append(cChar);
+                bEscaped = true;
+            }
+            else
+                aResult.append(cChar);
+            break;
+
+        case TOKEN_DOMAIN:
+            if (bEscaped)
+            {
+                aResult.append(cChar);
+                bEscaped = false;
+            }
+            else if (cChar == ']')
+            {
+                aResult.append(cChar);
+                eMode = TOKEN_ATOM;
+            }
+            else if (cChar == '\\')
+            {
+                aResult.append(cChar);
+                bEscaped = true;
+            }
+            else
+                aResult.append(cChar);
+            break;
+
+        case TOKEN_COMMENT:
+            if (bEscaped)
+                bEscaped = false;
+            else if (cChar == '(')
+                ++nLevel;
+            else if (cChar == ')')
+                if (nLevel)
+                    --nLevel;
+                else
+                    eMode = TOKEN_ATOM;
+            else if (cChar == '\\')
+                bEscaped = true;
+            break;
+
+        case TOKEN_ATOM:
+            if (cChar <= ' ' || cChar == 0x7F) // DEL
+            {
+            }
+            else if (cChar == '(')
+            {
+                eMode = TOKEN_COMMENT;
+            }
+            else
+            {
+                if (cChar == '"')
+                {
+                    aResult.append(cChar);
+                    eMode = TOKEN_QUOTED;
+                }
+                else if (cChar == '[')
+                {
+                    aResult.append(cChar);
+                    eMode = TOKEN_QUOTED;
+                }
+                else
+                    aResult.append(cChar);
+            }
+            break;
+        }
+    }
+    return aResult.makeStringAndClear();
+}
+
+SvAddressParser_Impl::SvAddressParser_Impl(SvAddressParser * pParser,
+                                           const OUString& rInput)
+    : m_pCurTokenBegin(nullptr)
+    , m_pCurTokenEnd(nullptr)
+{
+    m_pInputPos = rInput.getStr();
+    m_pInputEnd = m_pInputPos + rInput.getLength();
+
+    reset();
+    bool bDone = false;
+    for (;;)
+    {
+        if (!readToken())
+        {
+            if (m_eState == AFTER_LESS)
+                m_nCurToken = '>';
+            else
+            {
+                m_nCurToken = ',';
+                bDone = true;
+            }
+        }
+        switch (m_nCurToken)
+        {
+        case TOKEN_QUOTED:
+            if (m_pAddrSpec->m_eLastElem != ELEMENT_END)
+            {
+                if (m_pAddrSpec->m_bAtFound
+                    || m_pAddrSpec->m_eLastElem <= ELEMENT_DELIM)
+                    m_pAddrSpec->reset();
+                addTokenToAddrSpec(ELEMENT_ITEM);
+            }
+            m_eType = TOKEN_ATOM;
+            break;
+
+        case TOKEN_DOMAIN:
+            if (m_pAddrSpec->m_eLastElem != ELEMENT_END)
+            {
+                if (m_pAddrSpec->m_bAtFound && m_pAddrSpec->m_eLastElem == ELEMENT_DELIM)
+                    addTokenToAddrSpec(ELEMENT_ITEM);
+                else
+                    m_pAddrSpec->reset();
+            }
+            m_eType = TOKEN_ATOM;
+            break;
+
+        case TOKEN_COMMENT:
+            m_eType = TOKEN_ATOM;
+            break;
+
+        case TOKEN_ATOM:
+            if (m_pAddrSpec->m_eLastElem != ELEMENT_END)
+            {
+                if (m_pAddrSpec->m_eLastElem != ELEMENT_DELIM)
+                    m_pAddrSpec->reset();
+                addTokenToAddrSpec(ELEMENT_ITEM);
+            }
+            break;
+
+        case '(':
+            m_eType = TOKEN_COMMENT;
+            break;
+
+        case ')':
+        case '\\':
+        case ']':
+            m_pAddrSpec->finish();
+            break;
+
+        case '<':
+            switch (m_eState)
+            {
+            case BEFORE_COLON:
+            case BEFORE_LESS:
+                m_aOuterAddrSpec.finish();
+                m_pAddrSpec = &m_aInnerAddrSpec;
+                m_eState = AFTER_LESS;
+                break;
+
+            case AFTER_LESS:
+                m_aInnerAddrSpec.finish();
+                break;
+
+            case AFTER_GREATER:
+                m_aOuterAddrSpec.finish();
+                break;
+            }
+            break;
+
+        case '>':
+            if (m_eState == AFTER_LESS)
+            {
+                m_aInnerAddrSpec.finish();
+                if (m_aInnerAddrSpec.isValid())
+                    m_aOuterAddrSpec.m_eLastElem = ELEMENT_END;
+                m_pAddrSpec = &m_aOuterAddrSpec;
+                m_eState = AFTER_GREATER;
+            }
+            else
+            {
+                m_aOuterAddrSpec.finish();
+            }
+            break;
+
+        case '@':
+            if (m_pAddrSpec->m_eLastElem != ELEMENT_END)
+            {
+                if (!m_pAddrSpec->m_bAtFound
+                    && m_pAddrSpec->m_eLastElem == ELEMENT_ITEM)
+                {
+                    addTokenToAddrSpec(ELEMENT_DELIM);
+                    m_pAddrSpec->m_bAtFound = true;
+                }
+                else
+                    m_pAddrSpec->reset();
+            }
+            break;
+
+        case ',':
+        case ';':
+            if (m_eState == AFTER_LESS)
+                if (m_nCurToken == ',')
+                {
+                    if (m_aInnerAddrSpec.m_eLastElem != ELEMENT_END)
+                        m_aInnerAddrSpec.reset();
+                }
+                else
+                    m_aInnerAddrSpec.finish();
+            else
+            {
+                if(m_aInnerAddrSpec.isValid() || (!m_aOuterAddrSpec.isValid() && m_aInnerAddrSpec.isPoorlyValid()))
+                {
+                    m_pAddrSpec = &m_aInnerAddrSpec;
+                }
+                else if(m_aOuterAddrSpec.isPoorlyValid())
+                {
+                    m_pAddrSpec = &m_aOuterAddrSpec;
+                }
+                else
+                {
+                    m_pAddrSpec = nullptr;
+                }
+
+                if (m_pAddrSpec)
+                {
+                    OUString aTheAddrSpec;
+                    if (m_pAddrSpec->m_bReparse)
+                        aTheAddrSpec = reparse(m_pAddrSpec->m_pBegin, m_pAddrSpec->m_pEnd);
+                    else
+                    {
+                        sal_Int32 nLen = m_pAddrSpec->m_pEnd - m_pAddrSpec->m_pBegin;
+                        if (nLen == rInput.getLength())
+                            aTheAddrSpec = rInput;
+                        else
+                            aTheAddrSpec = rInput.copy( (m_pAddrSpec->m_pBegin - rInput.getStr()),
+                                                        nLen);
+                    }
+                    pParser->m_vAddresses.emplace_back( aTheAddrSpec );
+                }
+                if (bDone)
+                    return;
+                reset();
+            }
+            break;
+
+        case ':':
+            switch (m_eState)
+            {
+            case BEFORE_COLON:
+                m_aOuterAddrSpec.reset();
+                m_eState = BEFORE_LESS;
+                break;
+
+            case BEFORE_LESS:
+            case AFTER_GREATER:
+                m_aOuterAddrSpec.finish();
+                break;
+
+            case AFTER_LESS:
+                m_aInnerAddrSpec.reset();
+                break;
+            }
+            break;
+
+        case '"':
+            m_eType = TOKEN_QUOTED;
+            break;
+
+        case '.':
+            if (m_pAddrSpec->m_eLastElem != ELEMENT_END)
+            {
+                if (m_pAddrSpec->m_eLastElem != ELEMENT_DELIM)
+                    addTokenToAddrSpec(ELEMENT_DELIM);
+                else
+                    m_pAddrSpec->reset();
+            }
+            break;
+
+        case '[':
+            m_eType = TOKEN_DOMAIN;
+            break;
+        }
+    }
+}
+
+SvAddressParser::SvAddressParser(const OUString& rInput)
+{
+    SvAddressParser_Impl aDoParse(this, rInput);
+}
+
+SvAddressParser::~SvAddressParser()
+{
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */