lily/symtable.cc

   1 /*
   2   symtable.cc -- implement Symbol_table
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c)  1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8
   9 #include "misc.hh"
  10 #include "debug.hh"
  11 #include "real.hh"
  12 #include "atom.hh"
  13 #include "dictionary-iter.hh"
  14 #include "symtable.hh"
  15
  16 Symtables::Symtables()
  17 {
  18 }
  19
  20
  21 Symtables::Symtables (Symtables const &s)
  22   : Dictionary<Symtable*> (s)
  23 {
  24   font_name_ = s.font_name_;
  25
  26   for (Dictionary_iter< Symtable*>  i (s); i.ok(); i++)
  27     {
  28       add (i.key(), new Symtable (*i.val ()));
  29     }
  30 }
  31
  32 Symtables::~Symtables()
  33 {
  34   for (Dictionary_iter<Symtable*>  i (*this); i.ok(); i++)
  35     {
  36       delete i.val();
  37     }
  38 }
  39
  40 Atom
  41 Symtable::lookup (String s) const
  42 {
  43   if (elem_b (s))
  44     {
  45       Atom a (elem(s));
  46       return a;
  47     }
  48   else
  49     {
  50       warning (_f ("Symtable `%s\': unknown symbol: `%s\'", id_str, s));
  51       Atom sy;
  52       return sy;
  53     }
  54 }
  55
  56 Symtable*
  57 Symtables::operator()(String s)
  58 {
  59   if (!elem_b (s))
  60     {
  61       error (_f ("Symtable `%s\' unknown", s));
  62       /*
  63          We can 't return, because we would dump core anyway.
  64        */
  65       return 0;
  66     }
  67   else
  68     return elem(s);
  69 }
  70 void
  71 Symtables::print() const
  72 {
  73   for (Dictionary_iter<Symtable*>  i (*this); i.ok(); i++)
  74     {
  75       DOUT << "table \'" << i.key () << "\' {\n";
  76       i.val()->print ();
  77       DOUT << "}\n";
  78     }
  79 }
  80 void
  81 Symtable::print() const
  82 {
  83   for (Dictionary_iter<Atom>  i (*this); i.ok(); i++)
  84     {
  85       DOUT << "\'" << i.key() << "\'->" << i.val ().str () << '\n';
  86     }
  87 }
  88
  89 void
  90 Symtables::add (String s, Symtable*p)
  91 {
  92   p-> id_str = s;
  93   Dictionary<Symtable*>::elem  (s) = p;
  94 }