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Diffstat (limited to '')
| -rw-r--r-- | vcl/source/helper/strhelper.cxx | 370 |
1 files changed, 370 insertions, 0 deletions
diff --git a/vcl/source/helper/strhelper.cxx b/vcl/source/helper/strhelper.cxx new file mode 100644 index 000000000..96e10b486 --- /dev/null +++ b/vcl/source/helper/strhelper.cxx @@ -0,0 +1,370 @@ +/* -*- 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++; + } + 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( const OUString& rLine, bool bProtect ) +{ + sal_Int32 nLen = rLine.getLength(); + if( ! nLen ) + return OUString(); + + sal_Unicode *pBuffer = static_cast<sal_Unicode*>(alloca( sizeof(sal_Unicode)*(nLen + 1) )); + const sal_Unicode *pRun = rLine.getStr(); + sal_Unicode *pLeap = pBuffer; + + while( *pRun ) + { + if( *pRun && isSpace( *pRun ) ) + { + *pLeap = ' '; + pLeap++; + pRun++; + } + while( *pRun && isSpace( *pRun ) ) + pRun++; + while( *pRun && ! isSpace( *pRun ) ) + { + if( *pRun == '\\' ) + { + // escapement + pRun++; + *pLeap = *pRun; + pLeap++; + if( *pRun ) + 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(const OString& rLine) +{ + sal_Int32 nLen = rLine.getLength(); + if (!nLen) + return rLine; + + char *pBuffer = static_cast<char*>(alloca( nLen + 1 )); + const char *pRun = rLine.getStr(); + char *pLeap = pBuffer; + + while( *pRun ) + { + if( *pRun && isSpace( *pRun ) ) + { + *pLeap = ' '; + pLeap++; + pRun++; + } + while( *pRun && isSpace( *pRun ) ) + pRun++; + while( *pRun && ! isSpace( *pRun ) ) + { + if( *pRun == '\\' ) + { + // escapement + pRun++; + *pLeap = *pRun; + pLeap++; + if( *pRun ) + 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 + pLeap--; + if( *pLeap == ' ' ) + *pLeap = 0; + + return *pBuffer == ' ' ? pBuffer+1 : pBuffer; +} + +} // namespace + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |