cpputools/source/sp2bv/sp2bv.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19 #include <stdio.h>
  20 #include <string.h>
  21 #include <osl/thread.h>
  22 #include <osl/file.h>
  23 #include <rtl/ustrbuf.h>
  24
  25 static bool hasOption(char const * szOption, int argc, char** argv);
  26
  27
  28 #define HELP_TEXT    \
  29 "SYNOPSIS \n\n" \
  30 "\tsp2bv [-h] [-?] string \n\n" \
  31 "DESCRIPTION\n\n" \
  32 "\tsp2bv stands for \"system path to bootstrap variable\"." \
  33 " First the system path is converted into a file URL. Then all " \
  34 "characters which have a special meaning in bootstrap variables, " \
  35 "such as \'$\' are escaped. The resulting string is written to " \
  36 "stdout and can be assigned to a bootstrap variable.\n" \
  37 "\n\n" \
  38 "OPTIONS \n\n" \
  39 "\tThe following options are supported: \n" \
  40 "-?\n " \
  41 "--help" \
  42 "    Display help information.\n"
  43
  44
  45 int main(int argc, char **argv)
  46 {
  47     if( hasOption("--help",argc, argv) || hasOption("-h", argc, argv))
  48     {
  49         fprintf(stdout, HELP_TEXT);// default
  50         return 0;
  51     }
  52
  53     if (argc != 2)
  54     {
  55         fprintf(stdout, HELP_TEXT);
  56         return -1;
  57     }
  58
  59     rtl_uString* pPath = nullptr;
  60     rtl_string2UString( &pPath, argv[1], strlen(argv[1]),
  61                         osl_getThreadTextEncoding(),OSTRING_TO_OUSTRING_CVTFLAGS );
  62
  63     rtl_uString* pUrl = nullptr;
  64     if (osl_getFileURLFromSystemPath(pPath, &pUrl) != osl_File_E_None)
  65         return -1;
  66 //escape the special characters
  67
  68     sal_Unicode cEscapeChar = 0x5c;
  69     rtl_uString* pBuffer = nullptr;
  70     sal_Int32 nCapacity = 255;
  71     rtl_uString_new_WithLength( &pBuffer, nCapacity );
  72
  73     const sal_Unicode* pCur = pUrl->buffer;
  74     for (int i = 0; i != pUrl->length; i++)
  75     {
  76         switch( *pCur)
  77         {
  78         case '$':
  79             rtl_uStringbuffer_insert( &pBuffer, &nCapacity, pBuffer->length, &cEscapeChar, 1);
  80             rtl_uStringbuffer_insert( &pBuffer, &nCapacity, pBuffer->length, pCur, 1);
  81             break;
  82         case '{':
  83         case '}':
  84         case '\\': fprintf(stderr, "sp2vb: file URL contains invalid characters!\n");
  85             return -1;
  86         default:
  87             rtl_uStringbuffer_insert( &pBuffer, &nCapacity, pBuffer->length, pCur, 1);
  88         }
  89         pCur ++;
  90     }
  91 //convert back to byte string so that we can print it.
  92     rtl_String* pBootVar = nullptr;
  93     rtl_uString2String( &pBootVar, pBuffer->buffer, pBuffer->length,
  94                         osl_getThreadTextEncoding(), OUSTRING_TO_OSTRING_CVTFLAGS);
  95
  96     fprintf(stdout, "%s", pBootVar->buffer);
  97     fflush(stdout);
  98
  99     rtl_uString_release(pBuffer);
 100     rtl_uString_release(pPath);
 101     rtl_uString_release(pUrl);
 102     rtl_string_release(pBootVar);
 103     return 0;
 104 }
 105
 106
 107 static bool hasOption(char const * szOption, int argc, char** argv)
 108 {
 109     bool retVal = false;
 110     for(int i= 1; i < argc; i++)
 111     {
 112         if( ! strcmp(argv[i], szOption))
 113         {
 114             retVal = true;
 115             break;
 116         }
 117     }
 118     return retVal;
 119 }
 120
 121
 122 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */