/* ----------------------------------------------------------- *//*                                                             *//*                          ___                                *//*                       |_| | |_/   SPEECH                    *//*                       | | | | \   RECOGNITION               *//*                       =========   SOFTWARE                  */ /*                                                             *//*                                                             *//* ----------------------------------------------------------- *//* developed at:                                               *//*                                                             *//*      Speech Vision and Robotics group                       *//*      Cambridge University Engineering Department            *//*      http://svr-www.eng.cam.ac.uk/                          *//*                                                             *//* main authors: Valtcho Valtchev, Steve Young,                *//*               Julian Odell, Gareth Moore                    *//* ----------------------------------------------------------- *//*         Copyright:                                          *//*                                                             *//*          1994-2002 Cambridge University                     *//*                    Engineering Department                   *//*                                                             *//*   Use of this software is governed by a License Agreement   *//*    ** See the file License for the Conditions of Use  **    *//*    **     This banner notice must not be removed      **    *//*                                                             *//* ----------------------------------------------------------- *//*      File: LFoF.c - compute frequency of frequency files    *//* ----------------------------------------------------------- */char *lfof_version = "!HVER!LFoF:   3.2 [CUED 09/12/02]";char *lfof_vc_id = "$Id: LFoF.c,v 1.1 2002/12/19 16:36:27 ge204 Exp $";#include "HShell.h"#include "HMem.h"#include "HMath.h"#include "HWave.h"#include "HLabel.h"#include "LWMap.h"#include "LGBase.h"#include "LUtil.h"#include "LModel.h"#include "LPCalc.h"/*    This tool reads one or more gram base files and counts    the frequency of 1-gram, 2-gram, ... N-gram events.   The output is a table of frequency of frequency stats   fof[i][j] which is the number of times a j-gram occurred   exactly i times.*//* -------------------------- Trace Flags ------------------------ */static int trace = 0;#define T_TOP  0001     /* Top Level tracing *//* ---------------- Configuration Parameters --------------------- */static ConfParam *cParm[MAXGLOBS];static int nParm = 0;            /* total num params *//* ---------------------- Global Variables ----------------------- */static int        nSize = 0;        /* ngram size N */static char       *fofFN = NULL;    /* output FoF file name */static char       *mapFN = NULL;    /* word map file name */static WordMap    wmap;             /* word map for this corpus */static NGInputSet inSet;            /* input file set */static int        fofSize = 128;    /* size of fof table */static FoFTab     *fofTab;          /* FoF Table *//* ---------------- Process Command Line ------------------------- *//* SetConfParms: set conf parms relevant to this tool */void SetConfParms(void){   int i;   nParm = GetConfig("LFOF", TRUE, cParm, MAXGLOBS);   if (nParm>0){      if (GetConfInt(cParm,nParm,"TRACE",&i)) trace = i;   }}void ReportUsage(void){   printf("\nUSAGE: LFoF [options] wordMap fofFile <[mult] file ....>\n\n");   printf(" Option                                       Default\n\n");   printf(" -f n    set FoF table size to n              128\n");   printf(" -n n    set N-gram                           3\n");   PrintStdOpts("");   printf("\n\n");}int main(int argc, char *argv[]){   char *s;   void Initialise(void);   InitShell(argc,argv,lfof_version,lfof_vc_id);   InitMem();   InitMath();   InitWave();   InitLabel();   InitWMap();   InitGBase();   InitPCalc();   if (!InfoPrinted() && NumArgs() == 0)      ReportUsage();   if (NumArgs() == 0) Exit(0);   SetConfParms();   while (NextArg() == SWITCHARG) {      s = GetSwtArg();      if (strlen(s)!=1)          HError(16719,"Bad switch %s; must be single letter",s);      switch(s[0]){         case 'f':            fofSize = GetChkedInt(1, 1000, s); break;         case 'n':            nSize = GetChkedInt(1, MAXNG, s); break;         case 'T':            trace = GetChkedInt(0,077,s); break;         default:            HError(16719,"LFoF: Unknown switch %s",s);      }   }   if (NextArg() != STRINGARG)      HError(16719,"LFoF: map file name expected");   mapFN = GetStrArg();   if (NextArg() != STRINGARG)      HError(16719,"LFoF: FoF file name expected");   fofFN = GetStrArg();   Initialise();   if (trace&T_TOP) {      printf("Calculating FoF table\n"); fflush(stdout);   }   fofTab = CreateFoFTab(&gstack,fofSize,nSize);   ComputeFoFTab(fofTab,nSize,&inSet);   WriteFoFTab(fofFN,fofTab,NULL);   return EXIT_SUCCESS;}/* ------------------------ Initialisation ----------------------- *//* Initialise: initialise global data structures */void Initialise(void){   float weight;   char *fn;   CreateWordMap(mapFN,&wmap,1);   SortWordMap(&wmap);   weight = 1.0;   CreateInputSet(&gstack,&wmap,&inSet);   while (NextArg() == STRINGARG || NextArg() == FLOATARG) {      if (NextArg() == FLOATARG)  	 weight = GetFltArg();      if (weight==0.0 || weight<-10000.0 || weight>10000.0)         HError(-16719,"Unlikely ngram weight[%.4f]",weight);      if (NextArg()!=STRINGARG)         HError(16719,"Gram base file name expected");      fn = GetStrArg();      AddInputGFile(&inSet,fn,weight);      if (trace&T_TOP)         printf("Input file %s added, weight=%.4f\n",fn,weight);   }   if (nSize==0)       nSize = inSet.N;}/* ---------------------- End of LFoF.c ----------------------- */