g++ [flags ...] file ... -l /isip/tools/lib/$ISIP_BINARY/lib_mmedia.a

#include <LanguageModelXML.h>

boolean read(Sof& sof, long tag, const String& cname = CLASS_NAME);
RuleModel getRuleModel();

Sof sof;
sof.open("lm_xml_obj.sof", File::READ_ONLY);

LanguageModelXML lmxml;
lmxml.read(sof, 0);

LanguageModelIHD lmihd;
lmihd.setRuleModel(lmxml.getRuleModel());

HierarchicalDigraph hg;
hg.assign(lmihd.getHDigraph());

• declare a long int to store the rule nesting level

  long rule_nesting_level_d;

• declare a Vector of XMLTokens for every digraph on every level

  Vector< Vector < Vector< XMLToken > > > grammars_d;

• declare an IHD to hold the level information we can't store as XMLTokens

  HierarchicalDigraph hg_d;

• declare a Vector of Strings to store the list of symbols for a single grammar

  Vector< String > symbol_table_d;

• declare a temporary Rule to be used during processing

  Rule temp_rule_d;

• declare a Vector of Rules to store a partitioned XML grammar

  Vector<Rule> rules_d;

• declare an XMLToken to store the grammar start tag

  XMLToken grammar_start_tag_d;

• declare an XMLToken to store the grammar end tag

  XMLToken grammar_end_tag_d; 

• This example shows how to use a LanguageModelXML object to read a LanguageModelXML object from a file, and retrieve the parsed grammars in HierarchicalDigraph form.

  
  // declare an sof object to parse the file
  //
  Sof sof;
  
  // open the file for reading
  //
  sof.open("lm_xml_obj.sof", File::READ_ONLY);
  
  // declare a LMXML object to read the grammars and perform
  // the XML->BNF conversion
  //
  LanguageModelXML lmxml;
  
  // read the grammars
  //
  lmxml.read(sof, 0);
  
  // declare an HierarchicalDigraph object to store the grammars in DiGraph form
  //
  HierarchicalDigraph hg;
  
  // declare a LanguageModelIHD object to perform the BNF->IHD conversion
  //
  LanguageModelIHD lmihd;
  
  // perform conversion
  //
  lmihd.setRuleModel(lmxml.getRuleModel());
  
  // retrieve the grammars from the LMIHD object, and store them in the HD object
  //
  hg.assign(lmihd.getHDigraph());