Line data    Source code

       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             : 
      20             : #include "options.hxx"
      21             : 
      22             : #include "osl/diagnose.h"
      23             : 
      24             : #include <stdio.h>
      25             : #include <string.h>
      26             : 
      27             : namespace registry
      28             : {
      29             : namespace tools
      30             : {
      31             : 
      32           0 : Options::Options (char const * program)
      33           0 :     : m_program (program)
      34           0 : {}
      35             : 
      36           0 : Options::~Options()
      37           0 : {}
      38             : 
      39             : // static
      40           0 : bool Options::checkArgument(std::vector< std::string> & rArgs, char const * arg, size_t len)
      41             : {
      42           0 :     bool result = ((arg != 0) && (len > 0));
      43             :     OSL_PRECOND(result, "registry::tools::Options::checkArgument(): invalid arguments");
      44           0 :     if (result)
      45             :     {
      46             :         OSL_TRACE("registry::tools:Options::checkArgument(): \"%s\"", arg);
      47           0 :         switch (arg[0])
      48             :         {
      49             :         case '@':
      50           0 :             result = len > 1;
      51           0 :             if (result)
      52             :             {
      53             :                 // "@<cmdfile>"
      54           0 :                 result = Options::checkCommandFile(rArgs, &(arg[1]));
      55             :             }
      56           0 :             break;
      57             :         case '-':
      58           0 :             result = len > 1;
      59           0 :             if (result)
      60             :             {
      61             :                 // "-<option>"
      62           0 :                 std::string option (&(arg[0]), 2);
      63           0 :                 rArgs.push_back(option);
      64           0 :                 if (len > 2)
      65             :                 {
      66             :                     // "-<option><param>"
      67           0 :                     std::string param(&(arg[2]), len - 2);
      68           0 :                     rArgs.push_back(param);
      69           0 :                 }
      70             :             }
      71           0 :             break;
      72             :         default:
      73           0 :             rArgs.push_back(std::string(arg, len));
      74           0 :             break;
      75             :         }
      76             :     }
      77           0 :     return (result);
      78             : }
      79             : 
      80             : // static
      81           0 : bool Options::checkCommandFile(std::vector< std::string > & rArgs, char const * filename)
      82             : {
      83           0 :     FILE * fp = fopen(filename, "r");
      84           0 :     if (fp == 0)
      85             :     {
      86           0 :         fprintf(stderr, "ERROR: Can't open command file \"%s\"\n", filename);
      87           0 :         return (false);
      88             :     }
      89             : 
      90           0 :     std::string buffer;
      91           0 :     buffer.reserve(256);
      92             : 
      93           0 :     bool quoted = false;
      94           0 :     int  c = EOF;
      95           0 :     while ((c = fgetc(fp)) != EOF)
      96             :     {
      97           0 :         switch(c)
      98             :         {
      99             :         case '\"':
     100           0 :             quoted = !quoted;
     101           0 :             break;
     102             :         case ' ':
     103             :         case '\t':
     104             :         case '\r':
     105             :         case '\n':
     106           0 :             if (!quoted)
     107             :             {
     108           0 :                 if (!buffer.empty())
     109             :                 {
     110           0 :                     if (!checkArgument(rArgs, buffer.c_str(), buffer.size()))
     111             :                     {
     112             :                         // failure.
     113           0 :                         (void) fclose(fp);
     114           0 :                         return false;
     115             :                     }
     116           0 :                     buffer.clear();
     117             :                 }
     118           0 :                 break;
     119             :             }
     120             :         default:
     121             :             // quoted white-space fall through
     122           0 :             buffer.push_back(sal::static_int_cast<char>(c));
     123           0 :             break;
     124             :         }
     125             :     }
     126           0 :     return (fclose(fp) == 0);
     127             : }
     128             : 
     129           0 : bool Options::initOptions (std::vector< std::string > & rArgs)
     130             : {
     131           0 :     return initOptions_Impl (rArgs);
     132             : }
     133             : 
     134           0 : bool Options::badOption (char const * reason, char const * option) const
     135             : {
     136           0 :     (void) fprintf(stderr, "%s: %s option '%s'\n", m_program.c_str(), reason, option);
     137           0 :     return printUsage();
     138             : }
     139             : 
     140           0 : bool Options::printUsage() const
     141             : {
     142           0 :     printUsage_Impl();
     143           0 :     return false;
     144             : }
     145             : 
     146             : } // namespace tools
     147             : } // namespace registry
     148             : 
     149             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */