lily/sources.cc

   1 /*
   2   source.cc -- implement Sources
   3
   4   source file of the LilyPond music typesetter
   5
   6   (c) 1997--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
   7 */
   8
   9 #include "sources.hh"
  10
  11 #include "config.hh"
  12 #include "source-file.hh"
  13 #include "file-name.hh"
  14 #include "file-path.hh"
  15
  16 Sources::Sources ()
  17 {
  18   path_ = 0;
  19 }
  20
  21
  22 Sources::Sources (Sources const &)
  23 {
  24   assert (false);
  25 }
  26
  27
  28 void
  29 Sources::set_path (File_path *f)
  30 {
  31   path_ = f;
  32 }
  33
  34 /**
  35    Open a file. If the name is not absolute, look in CURRENT_DIR first.
  36    Afterwards, check the rest of the path_.
  37
  38    FILE_STRING the name of the file to be opened.
  39    CURRENT_DIR a path to a directory, either absolute or relative to the
  40      working directory.
  41 */
  42 Source_file *
  43 Sources::get_file (string file_string, string const& current_dir)
  44 {
  45   if (file_string != "-")
  46     {
  47       // First, check for a path relative to the directory of the
  48       // file currently being parsed.
  49       if (current_dir.length ()
  50           && file_string.length ()
  51           && !File_name (file_string).is_absolute ()
  52           && is_file (current_dir + DIRSEP + file_string))
  53         file_string = current_dir + DIRSEP + file_string;
  54
  55       // Otherwise, check the rest of the path.
  56       else if (path_)
  57         {
  58           string file_string_o = path_->find (file_string);
  59           if ((file_string_o == "") && (file_string != ""))
  60             return 0;
  61
  62           file_string = file_string_o;
  63         }
  64     }
  65
  66   Source_file *f = new Source_file (file_string);
  67   add (f);
  68   return f;
  69 }
  70
  71 void
  72 Sources::add (Source_file *sourcefile)
  73 {
  74   sourcefiles_.push_back (sourcefile);
  75 }
  76
  77 Sources::~Sources ()
  78 {
  79   for (vsize i = 0; i < sourcefiles_.size (); i++)
  80     {
  81       sourcefiles_[i]->unprotect ();
  82     }
  83 }
  84