source/utils.cpp

   1 /* $Id$
   2
   3 This file is part of libmspfs
   4 Copyright © 2006-2008  Mikko Rasa, Mikkosoft Productions
   5 Distributed under the LGPL
   6 */
   7
   8 #include <cerrno>
   9 #include <msp/core/except.h>
  10 #ifndef WIN32
  11 #include <fnmatch.h>
  12 #else
  13 #include <msp/strings/glob.h>
  14 #endif
  15 #include <msp/strings/utils.h>
  16 #include "dir.h"
  17 #include "path.h"
  18 #include "utils.h"
  19
  20 using namespace std;
  21
  22 namespace Msp {
  23 namespace FS {
  24
  25 string basename(const Path &p)
  26 {
  27         return p[-1];
  28 }
  29
  30 Path dirname(const Path &p)
  31 {
  32         return p.subpath(0, p.size()-1);
  33 }
  34
  35 string basepart(const string &fn)
  36 {
  37         unsigned dot=fn.rfind('.');
  38         return fn.substr(0, dot);
  39 }
  40
  41 string extpart(const string &fn)
  42 {
  43         unsigned dot=fn.rfind('.');
  44         if(dot==string::npos)
  45                 return string();
  46         return fn.substr(dot);
  47 }
  48
  49 Path fix_case(const Path &path)
  50 {
  51         bool found=true;
  52         Path result;
  53         for(Path::Iterator i=path.begin(); i!=path.end(); ++i)
  54         {
  55                 if(!found || *i=="/")
  56                         result/=*i;
  57                 else
  58                 {
  59                         list<string> files;
  60                         if(result.size())
  61                                 files=list_files(result);
  62                         else
  63                                 files=list_files(".");
  64
  65                         found=false;
  66                         for(list<string>::iterator j=files.begin(); (j!=files.end() && !found); ++j)
  67                                 if(!strcasecmp(*j,*i))
  68                                 {
  69                                         result/=*j;
  70                                         found=true;
  71                                 }
  72
  73                         if(!found)
  74                                 result/=*i;
  75                 }
  76         }
  77
  78         return result;
  79 }
  80
  81 void unlink(const Path &path)
  82 {
  83         if(::unlink(path.str().c_str())==-1)
  84                 throw SystemError("unlink failed", errno);
  85 }
  86
  87 Path relative(const Path &path, const Path &base)
  88 {
  89         Path::Iterator i=path.begin();
  90         Path::Iterator j=base.begin();
  91         for(; (i!=path.end() && j!=base.end() && *i==*j); ++i, ++j) ;
  92
  93         Path result;
  94         for(; j!=base.end(); ++j)
  95                 result/="..";
  96         for(; i!=path.end(); ++i)
  97                 result/=*i;
  98
  99         return result;
 100 }
 101
 102 } // namespace FS
 103 } // namespace Msp