tools/lou_debug.c

/* liblouis Braille Translation and Back-Translation Library

   Based on BRLTTY, copyright (C) 1999-2006 by
   The BRLTTY Team

   Copyright (C) 2004, 2005, 2006
   ViewPlus Technologies, Inc. www.viewplus.com
   and
   JJB Software, Inc. www.jjb-software.com

   This file is free software; you can redistribute it and/or modify it
   under the terms of the GNU General Public License as published by the
   Free Software Foundation; either version 2, or (at your option) any
   later version.

   In addition to the permissions in the GNU General Public License, the
   copyright holders give you unlimited permission to link the
   compiled version of this file into combinations with other programs,
   and to distribute those combinations without any restriction coming
   from the use of this file.  (The General Public License restrictions
   do apply in other respects; for example, they cover modification of
   the file, and distribution when not linked into a combine
   executable.)

   This file is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; see the file COPYING.  If not, write to
   the Free Software Foundation, 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.

   Maintained by John J. Boyer john.boyer@jjb-software.com
   */

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "louis.h"
#define BUFSIZE 256

static const TranslationTableHeader *table;
static char inputBuffer[BUFSIZE];

static int
getInput (void)
{
  int inputLength;
  inputBuffer[0] = 0;
  fgets (inputBuffer, sizeof (inputBuffer), stdin);
  inputLength = strlen (inputBuffer) - 1;
  if (inputLength < 0)		/*EOF on script */
    exit (0);
  inputBuffer[inputLength] = 0;
  return inputLength;
}

static int
printRule (TranslationTableRule * thisRule, int mode)
{
  printf ("Rule: ");
  printf ("opcode=%s, ", findOpcodeName (thisRule->opcode));
  if (thisRule->before)
    printf ("before=%x, ", thisRule->before);
  if (thisRule->after)
    printf ("after=%x, ", thisRule->after);
  switch (thisRule->opcode)
    {
    case CTO_Context:
    case CTO_Correct:
    case CTO_SwapCd:
    case CTO_SwapDd:
    case CTO_Pass2:
    case CTO_Pass3:
    case CTO_Pass4:
      printf ("code=%s ", showString (thisRule->charsdots, thisRule->charslen
				      + thisRule->dotslen));
      break;
    default:
      if (mode == 0)
	{
	  printf ("chars=%s, ", showString (thisRule->charsdots,
					    thisRule->charslen));
	  printf ("dots=%s, ",
		  showDots (&thisRule->charsdots[thisRule->charslen],
			    thisRule->dotslen));
	}
      else
	{
	  printf ("dots=%s, ",
		  showDots (&thisRule->charsdots[thisRule->charslen],
			    thisRule->dotslen));
	  printf ("chars=%s, ", showString (thisRule->charsdots,
					    thisRule->charslen));
	}
      break;
    }
  return 1;
}

static int
printCharacter (TranslationTableCharacter * thisChar, int mode)
{
  TranslationTableRule *thisRule;
  TranslationTableOffset nextRule;
  if (mode == 0)
    {
      printf ("Char: ");
      printf ("real=%s, ", showString (&thisChar->realchar, 1));
      printf ("upper=%s, ", showString (&thisChar->uppercase, 1));
      printf ("lower=%s, ", showString (&thisChar->lowercase, 1));
    }
  else
    printf ("Dots: real=%s, ", showDots (&thisChar->realchar, 1));
  printf ("attr=%s, ", showAttributes (thisChar->attributes));
  nextRule = thisChar->otherRules;
  while (nextRule)
    {
      thisRule = (TranslationTableRule *) & table->ruleArea[nextRule];
      if (nextRule == thisChar->definitionRule)
	printf ("definition ");
      printRule (thisRule, mode);
      printf ("\n");
      if (mode == 0)
	nextRule = thisRule->charsnext;
      else
	nextRule = thisRule->dotsnext;
    }
  return 1;
}

static int
show_characters (int startHash)
{
  int k;
  TranslationTableCharacter *thisChar;
  TranslationTableOffset nextChar;
  printf ("Press enter for next or (e)xit, next-(h)ash, then enter\n");
  if (startHash < 0)
    k = 0;
  else
    k = startHash;
  for (; k < HASHNUM; k++)
    if (table->characters[k])
      {
	printf ("Hash=%d\n", k);
	nextChar = table->characters[k];
	while (nextChar)
	  {
	    thisChar =
	      (TranslationTableCharacter *) & table->ruleArea[nextChar];
	    printCharacter (thisChar, 0);
	    printf ("=> ");
	    getInput ();
	    if (*inputBuffer == 'h')
	      break;
	    if (*inputBuffer == 'e')
	      return 1;
	    nextChar = thisChar->next;
	  }
      }
  return 1;
}

static int
show_dots (int startHash)
{
  int k;
  TranslationTableCharacter *thisDots;
  TranslationTableOffset nextDots;
  printf ("Press enter for next or (e)xit, next-(h)ash, then enter\n");
  if (startHash < 0)
    k = 0;
  else
    k = startHash;
  for (; k < HASHNUM; k++)
    if (table->dots[k])
      {
	printf ("Hash=%d\n", k);
	nextDots = table->dots[k];
	while (nextDots)
	  {
	    thisDots =
	      (TranslationTableCharacter *) & table->ruleArea[nextDots];
	    printCharacter (thisDots, 1);
	    printf ("=> ");
	    getInput ();
	    if (*inputBuffer == 'h')
	      break;
	    if (*inputBuffer == 'e')
	      return 1;
	    nextDots = thisDots->next;
	  }
      }
  return 1;
}

static int
show_forRules (int startHash)
{
  int k;
  TranslationTableRule *thisRule;
  TranslationTableOffset nextRule;
  printf ("Press enter for next or (e)xit, next-(h)ash, then enter\n");
  if (startHash < 0)
    k = 0;
  else
    k = startHash;
  for (; k < HASHNUM; k++)
    if (table->forRules[k])
      {
	printf ("Hash=%d\n", k);
	nextRule = table->forRules[k];
	while (nextRule)
	  {
	    thisRule = (TranslationTableRule *) & table->ruleArea[nextRule];
	    printRule (thisRule, 0);
	    printf ("=> ");
	    getInput ();
	    if (*inputBuffer == 'h')
	      break;
	    if (*inputBuffer == 'e')
	      return 1;
	    nextRule = thisRule->charsnext;
	  }
      }
  return 1;
}

static int
show_backRules (int startHash)
{
  int k;
  TranslationTableRule *thisRule;
  TranslationTableOffset nextRule;
  printf ("Press enter for next or (e)xit, next-(h)ash, then enter\n");
  if (startHash < 0)
    k = 0;
  else
    k = startHash;
  for (; k < HASHNUM; k++)
    if (table->backRules[k])
      {
	printf ("Hash=%d\n", k);
	nextRule = table->backRules[k];
	while (nextRule)
	  {
	    thisRule = (TranslationTableRule *) & table->ruleArea[nextRule];
	    printRule (thisRule, 1);
	    printf ("=> ");
	    getInput ();
	    if (*inputBuffer == 'h')
	      break;
	    if (*inputBuffer == 'e')
	      return 1;
	    nextRule = thisRule->dotsnext;
	  }
      }
  return 1;
}

static int
print_brailleIndicator (TranslationTableOffset offset, char *opcode)
{
  TranslationTableRule *thisRule;
  if (!offset)
    return 0;
  thisRule = (TranslationTableRule *) & table->ruleArea[offset];
  printf ("%s %s\n", opcode,
	  showDots (&thisRule->charsdots[0], thisRule->dotslen));
  return 1;
}

static int
print_phraseLength (TranslationTableOffset offset, char *opcode)
{
  if (!offset)
    return 0;
  printf ("%s %d\n", opcode, offset);
  return 1;
}

static int
show_brailleIndicators (void)
{
  print_brailleIndicator (table->capitalSign, "capsign");
  print_brailleIndicator (table->beginCapitalSign, "begcaps");
  print_phraseLength (table->lenBeginCaps, "lenbegcaps");
  print_brailleIndicator (table->endCapitalSign, "endcaps");
  print_brailleIndicator (table->firstWordCaps, "firstwordcaps");
  print_brailleIndicator (table->lastWordCapsAfter, "lastwordaftercaps");
  print_phraseLength (table->lenCapsPhrase, "lencapsphrase");
  print_brailleIndicator (table->letterSign, "letsign");
  print_brailleIndicator (table->numberSign, "numsign");
  print_brailleIndicator (table->firstWordItal, "firstwordital");
  print_brailleIndicator (table->lastWordItalBefore, "lastworditalbefore");
  print_brailleIndicator (table->lastWordItalAfter, "lastworditalafter");
  print_brailleIndicator (table->firstLetterItal, "firstletterital");
  print_brailleIndicator (table->lastLetterItal, "lastletterital");
  print_brailleIndicator (table->singleLetterItal, "singleletterital");
  print_brailleIndicator (table->italWord, "italword");
  print_phraseLength (table->lenItalPhrase, "lenitalphrase");
  print_brailleIndicator (table->firstWordBold, "firstwordbold");
  print_brailleIndicator (table->lastWordBoldBefore, "lastwordboldbefore");
  print_brailleIndicator (table->lastWordBoldAfter, "lastwordboldafter");
  print_brailleIndicator (table->firstLetterBold, "firstletterbold");
  print_brailleIndicator (table->lastLetterBold, "lastletterbold");
  print_brailleIndicator (table->singleLetterBold, "singleletterbold");
  print_brailleIndicator (table->boldWord, "boldword");
  print_phraseLength (table->lenBoldPhrase, "lenboldphrase");
  print_brailleIndicator (table->firstWordUnder, "firstwordunder");
  print_brailleIndicator (table->lastWordUnderBefore, "lastwordunderbefore");
  print_brailleIndicator (table->lastWordUnderAfter, "lastwordunderafter");
  print_brailleIndicator (table->firstLetterUnder, "firstletterunder");
  print_brailleIndicator (table->lastLetterUnder, "lastletterunder");
  print_brailleIndicator (table->singleLetterUnder, "singleletterunder");
  print_brailleIndicator (table->underWord, "underword");
  print_phraseLength (table->lenUnderPhrase, "lenunderphrase");
  print_brailleIndicator (table->begComp, "begcomp");
  print_brailleIndicator (table->compBegEmph1, "compbegemph1");
  print_brailleIndicator (table->compEndEmph1, "compendemph1");
  print_brailleIndicator (table->compBegEmph2, "compbegemph2");
  print_brailleIndicator (table->compEndEmph2, "compendemph2");
  print_brailleIndicator (table->compBegEmph3, "compbegemph3");
  print_brailleIndicator (table->compEndEmph3, "compendemph3");
  print_brailleIndicator (table->compCapSign, "compcapsign");
  print_brailleIndicator (table->compBegCaps, "compbegcaps");
  print_brailleIndicator (table->compEndCaps, "compendcaps");
  print_brailleIndicator (table->endComp, "endcomp");
  return 1;
}

static char *
pickYN (int a)
{
  if (!a)
    return "no";
  return "yes";
}

static int
show_misc (void)
{
  printf ("Table size: %d\n", table->tableSize);
  printf ("Bytes used: %d\n", table->bytesUsed);
  printf ("Number of passes: %d\n", table->numPasses);
  printf ("'correct' opcodes: %s\n", pickYN (table->corrections));
  printf ("'syllable' opcodes: %s\n", pickYN (table->syllables));
  printf ("'capsnocont' opcode: %s\n", pickYN (table->capsNoCont));
  printf ("Hyphenation table: %s\n", pickYN (table->hyphenStatesArray));
  printf ("noletsignbefore %s\n", showString (&table->noLetsignBefore[0],
					      table->noLetsignBeforeCount));
  printf ("noletsign %s\n", showString (&table->noLetsign[0],
					table->noLetsignCount));
  printf ("noletsignafter %s\n", showString (&table->noLetsignAfter[0],
					     table->noLetsignAfterCount));
  return 1;
}

static int
show_charMap (int startHash)
{
  int k;
  CharOrDots *thisChar;
  TranslationTableOffset nextChar;
  printf ("Press enter for next or (e)xit, next-(h)ash, then enter\n");
  if (startHash < 0)
    k = 0;
  else
    k = startHash;
  for (; k < HASHNUM; k++)
    if (table->charToDots[k])
      {
	printf ("Hash=%d\n", k);
	nextChar = table->charToDots[k];
	while (nextChar)
	  {
	    thisChar = (CharOrDots *) & table->ruleArea[nextChar];
	    printf ("Char: %s ", showString (&thisChar->lookFor, 1));
	    printf ("dots=%s\n", showDots (&thisChar->found, 1));
	    printf ("=> ");
	    getInput ();
	    if (*inputBuffer == 'h')
	      break;
	    if (*inputBuffer == 'e')
	      return 1;
	    nextChar = thisChar->next;
	  }
      }
  return 1;
}

static int
show_dotsMap (int startHash)
{
  int k;
  CharOrDots *thisDots;
  TranslationTableOffset nextDots;
  printf ("Press enter for next or (e)xit, next-(h)ash, then enter\n");
  if (startHash < 0)
    k = 0;
  else
    k = startHash;
  for (; k < HASHNUM; k++)
    if (table->dotsToChar[k])
      {
	printf ("Hash=%d\n", k);
	nextDots = table->dotsToChar[k];
	while (nextDots)
	  {
	    thisDots = (CharOrDots *) & table->ruleArea[nextDots];
	    printf ("Dots: %s ", showDots (&thisDots->lookFor, 1));
	    printf ("char=%s\n", showString (&thisDots->found, 1));
	    printf ("=> ");
	    getInput ();
	    if (*inputBuffer == 'h')
	      break;
	    if (*inputBuffer == 'e')
	      return 1;
	    nextDots = thisDots->next;
	  }
      }
  return 1;
}

static int
show_compDots (int startChar)
{
  widechar k;
  printf ("Press enter for next or (e)xit, next-(h)ash, then enter\n");
  if (startChar < 0)
    k = 0;
  else
    k = startChar;
  for (; k < 256; k++)
    if (table->compdotsPattern[k])
      {
	TranslationTableRule *thisRule = (TranslationTableRule *)
	  & table->ruleArea[table->compdotsPattern[k]];
	printf ("Char: %s ", showString (&k, 1));
	printf ("dots=%s\n",
		showDots (&thisRule->charsdots[1], thisRule->dotslen));
	printf ("=> ");
	getInput ();
	if (*inputBuffer == 'e')
	  return 1;
      }
  return 1;
}

static void
part_paramLetters ()
{
  printf ("show particular hash chains.\n");
  printf
    ("show-(f)orward-rules, show-(b)ackward-rules, show-(c)haracters, \n");
  printf ("show-(d)ot-patterns, show-(C)har-to-dots, show-(D)ots-tochar\n");
  printf ("(z)-compdots, (h)elp, e(x)it\n");
}

static void
particularHelp (void)
{
  part_paramLetters ();
}

static int
particular (void)
{
  int startHash;
  widechar parsed[BUFSIZE];
  part_paramLetters ();
  do
    {
      printf ("particular: ");
      getInput ();
      switch (inputBuffer[0])
	{
	case 0:
	  break;
	case 'h':
	  particularHelp ();
	  break;
	case 'c':
	  printf ("-> ");
	  getInput ();
	  if (!extParseChars (inputBuffer, parsed))
	    break;
	  startHash = charHash (*parsed);
	  if (table->characters[startHash] == 0)
	    {
	      printf ("Character not in table.\n");
	      break;
	    }
	  show_characters (startHash);
	  break;
	case 'd':
	  printf ("-> ");
	  getInput ();
	  if (!extParseDots (inputBuffer, parsed))
	    break;
	  startHash = charHash (*parsed);
	  if (table->dots[startHash] == 0)
	    {
	      printf ("Dot pattern not in table.\n");
	      break;
	    }
	  show_dots (startHash);
	  break;
	case 'C':
	  printf ("-> ");
	  getInput ();
	  if (!extParseChars (inputBuffer, parsed))
	    break;
	  startHash = charHash (*parsed);
	  if (table->charToDots[startHash] == 0)
	    {
	      printf ("Character not in table.\n");
	      break;
	    }
	  show_charMap (startHash);
	  break;
	case 'D':
	  printf ("-> ");
	  getInput ();
	  if (!extParseDots (inputBuffer, parsed))
	    break;
	  startHash = charHash (*parsed);
	  if (table->dotsToChar[startHash] == 0)
	    {
	      printf ("Dot pattern not in table.\n");
	      break;
	    }
	  show_dotsMap (startHash);
	  break;
	case 'f':
	  printf ("-> ");
	  getInput ();
	  if (!extParseChars (inputBuffer, parsed))
	    break;
	  startHash = stringHash (parsed);
	  if (table->forRules[startHash] == 0)
	    {
	      printf ("Character string not in table.\n");
	      break;
	    }
	  show_forRules (startHash);
	  break;
	case 'b':
	  printf ("-> ");
	  getInput ();
	  if (!extParseDots (inputBuffer, parsed))
	    break;
	  startHash = stringHash (parsed);
	  if (table->backRules[startHash] == 0)
	    {
	      printf ("Dot pattern not in table.\n");
	      break;
	    }
	  show_backRules (startHash);
	  break;
	case 'z':
	  printf ("-> ");
	  getInput ();
	  if (!extParseChars (inputBuffer, parsed))
	    break;
	  startHash = charHash (*parsed);
	  if (*parsed > 255 || table->compdotsPattern[startHash] == 0)
	    {
	      printf ("Character not in table.\n");
	      break;
	    }
	  show_compDots (startHash);
	  break;
	case 'x':
	  return 1;
	default:
	  printf ("Bad choice.\n");
	  break;
	}
    }
  while (inputBuffer[0] != 'x');
  return 1;
}

static void
paramLetters (void)
{
  printf ("Press one of the letters in parentheses, then enter.\n");
  printf
    ("show-(f)orward-rules, show-(b)ackward-rules, show-(c)haracters, \n");
  printf ("show-(d)ot-patterns, show-(C)har-to-dots, show-(D)ots-tochar\n");
  printf ("show-(m)isc, show-(z)-compdots\n");
  printf ("show-(p)articulars, (h)elp, (q)uit\n");
}

static void
commandHelp (void)
{
  paramLetters ();
}

static int
getCommands (void)
{
  paramLetters ();
  do
    {
      printf ("Command: ");
      getInput ();
      switch (inputBuffer[0])
	{
	case 0:
	  break;
	case 'h':
	  commandHelp ();
	  break;
	case 'C':
	  show_charMap (-1);
	  break;
	case 'D':
	  show_dotsMap (-1);
	  break;
	case 'z':
	  show_compDots (-1);
	  break;
	case 'c':
	  show_characters (-1);
	  break;
	case 'd':
	  show_dots (-1);
	  break;
	case 'f':
	  show_forRules (-1);
	  break;
	case 'b':
	  show_backRules (-1);
	  break;
	case 'i':
	  show_brailleIndicators ();
	  break;
	case 'm':
	  show_misc ();
	  break;
	case 'p':
	  particular ();
	  break;
	case 'q':
	  return 1;
	default:
	  printf ("Bad choice.\n");
	  break;
	}
    }
  while (inputBuffer[0] != 'q');
  return 1;
}

int
main (int argc, char **argv)
{
  if (argc != 2)
    {
      fprintf (stderr, "Usage: lou_debug tablename\n");
      exit (1);
    }
  if (!(table = lou_getTable (argv[1])))
    {
      lou_free ();
      return 1;
    }
  getCommands ();
  lou_free ();
  return 0;
}