lily/sources.cc

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 1997--2010 Han-Wen Nienhuys <hanwen@xs4all.nl>
   5
   6   LilyPond is free software: you can redistribute it and/or modify
   7   it under the terms of the GNU General Public License as published by
   8   the Free Software Foundation, either version 3 of the License, or
   9   (at your option) any later version.
  10
  11   LilyPond is distributed in the hope that it will be useful,
  12   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14   GNU General Public License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "sources.hh"
  21
  22 #include "config.hh"
  23 #include "source-file.hh"
  24 #include "file-name.hh"
  25 #include "file-path.hh"
  26
  27 Sources::Sources ()
  28 {
  29   path_ = 0;
  30 }
  31
  32
  33 Sources::Sources (Sources const &)
  34 {
  35   assert (false);
  36 }
  37
  38
  39 void
  40 Sources::set_path (File_path *f)
  41 {
  42   path_ = f;
  43 }
  44
  45 /**
  46    Open a file. If the name is not absolute, look in CURRENT_DIR first.
  47    Afterwards, check the rest of the path_.
  48
  49    FILE_STRING the name of the file to be opened.
  50    CURRENT_DIR a path to a directory, either absolute or relative to the
  51      working directory.
  52 */
  53 Source_file *
  54 Sources::get_file (string file_string, string const& current_dir)
  55 {
  56   if (file_string != "-")
  57     {
  58       // First, check for a path relative to the directory of the
  59       // file currently being parsed.
  60       if (current_dir.length ()
  61           && file_string.length ()
  62           && !File_name (file_string).is_absolute ()
  63           && is_file (current_dir + DIRSEP + file_string))
  64         file_string = current_dir + DIRSEP + file_string;
  65
  66       // Otherwise, check the rest of the path.
  67       else if (path_)
  68         {
  69           string file_string_o = path_->find (file_string);
  70           if ((file_string_o == "") && (file_string != ""))
  71             return 0;
  72
  73           file_string = file_string_o;
  74         }
  75     }
  76
  77   Source_file *f = new Source_file (file_string);
  78   add (f);
  79   return f;
  80 }
  81
  82 void
  83 Sources::add (Source_file *sourcefile)
  84 {
  85   sourcefiles_.push_back (sourcefile);
  86 }
  87
  88 Sources::~Sources ()
  89 {
  90   for (vsize i = 0; i < sourcefiles_.size (); i++)
  91     {
  92       sourcefiles_[i]->unprotect ();
  93     }
  94 }
  95