symtable.cc

   1 #include "misc.hh"
   2 #include "dimen.hh"
   3 #include "debug.hh"
   4 #include "real.hh"
   5 #include "symbol.hh"
   6 #include "assoc.hh"
   7 #include "symtable.hh"
   8
   9
  10
  11
  12
  13 Symbol
  14 Symtable::lookup(String s) const
  15 {
  16     if (elt_query(s))
  17         return (*this)[s];
  18     else {
  19          Symbol unknown;
  20         WARN<<"Unknown symbol " << s <<'\n';
  21         return unknown;
  22     }
  23 }
  24
  25 Symtable*
  26 Symtables::operator()(String s)
  27 {
  28     if (!done_reading){ // read on demand
  29         *mlog << '(' << fname ;
  30         read();
  31         done_reading = true;
  32         *mlog << ")\n";
  33     }
  34     return Assoc<String, Symtable*>::operator[](s);
  35 }
  36
  37 void
  38 Symtables::read()
  39 {
  40      Text_db symini(fname);
  41      while (!symini.eof()) {
  42          Text_record  r(  symini++);
  43          assert (r[0] == "table");
  44
  45          String tabnam = r[1];
  46          Symtable * sp = new Symtable;
  47          while (!symini.eof()){
  48              r = symini++;
  49              if (r[0] == "end")
  50                  break;
  51
  52              assert(r.sz() == 6);
  53              int i=0;
  54              String id=r[i++];
  55              String tex=r[i++];
  56              svec<Real> dims;
  57              for (int j=0; j < 4; j++)
  58                  dims.add( parse_dimen(r[i++]));
  59
  60              Symbol s(tex, Box(dims));
  61              (*sp)[id] = s;
  62          }
  63          (*this)[tabnam] = sp;
  64      }
  65 }
  66
  67
  68