langviz/Graph.cc

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Copyright (c) 2000-2015 Ericsson Telecom AB
   3 // All rights reserved. This program and the accompanying materials
   4 // are made available under the terms of the Eclipse Public License v1.0
   5 // which accompanies this distribution, and is available at
   6 // http://www.eclipse.org/legal/epl-v10.html
   7 ///////////////////////////////////////////////////////////////////////////////
   8 #include "Graph.hh"
   9 #include "Symbol.hh"
  10 #include "Grammar.hh"
  11 #include "../common/memory.h"
  12 #include <stdio.h>
  13
  14 void graph_use(Grammar* grammar)
  15 {
  16   expstring_t out=mcopystr("digraph G {\n");
  17   size_t n=grammar->get_nof_symbols();
  18   for(size_t i=0; i<n; i++) {
  19     Symbol *lhs=grammar->get_symbol_byIndex(i);
  20     const SymbolSet& ss=lhs->get_refs();
  21     size_t n2=ss.get_nof_ss();
  22     if(n2) {
  23       out=mputprintf(out, "%s -> { ", lhs->get_id_dot().c_str());
  24       for(size_t i2=0; i2<n2; i2++) {
  25         Symbol *s=ss.get_s_byIndex(i2);
  26         if(!s->get_is_terminal())
  27           out=mputprintf(out, "%s; ", s->get_id_dot().c_str());
  28       }
  29       out=mputstr(out, "}\n");
  30     }
  31   }
  32   out=mputstr(out, "}\n");
  33   puts(out);
  34   Free(out);
  35 }
  36