コード例 #1
0
ファイル: SDDS_copy.c プロジェクト: veprbl/epics-sdds
int32_t SDDS_CopyPage(SDDS_DATASET *SDDS_target, SDDS_DATASET *SDDS_source)
{
  /*  int32_t i, index, column_count, j;*/
  /*  SDDS_LAYOUT target_layout, source_layout;*/
  if (!SDDS_CheckDataset(SDDS_target, "SDDS_CopyPage"))
    return(0);
  if (!SDDS_CheckDataset(SDDS_source, "SDDS_CopyPage"))
    return(0);

  if (!SDDS_StartPage(SDDS_target, SDDS_target->layout.n_columns?SDDS_source->n_rows:0)) {
    SDDS_SetError("Unable to copy page (SDDS_CopyPage)");
    return(0);
  }
  if (!SDDS_CopyParameters(SDDS_target, SDDS_source))
    return(0);
  if (!SDDS_CopyArrays(SDDS_target, SDDS_source))
    return(0);
  if (!SDDS_CopyColumns(SDDS_target, SDDS_source))
    return(0);
  return(1);
}
コード例 #2
0
ファイル: sddsbreak.c プロジェクト: epicsdeb/sdds
int main(int argc, char **argv)
{
  SDDS_DATASET SDDSnew, SDDSold;
  long i, j, iArg;
  SCANNED_ARG *scArg;
  char *input, *output, *columnName;
  long mode, matchCode, rows, rowsMinus1, tmpfile_used;
  double gapAmount, *columnData, gapFactor;
  char *matchPattern;
  long matchPatternAfter = 0;
  
  double changeAmount, changeBase;
  long retval, newStart, rowLimit, breakNext;
  int32_t dataType, overlap=0;
  unsigned long flags, pipeFlags, changeFlags;
  char **stringData;
    
  SDDS_RegisterProgramName(argv[0]);
  argc = scanargs(&scArg, argc, argv);
  if (argc<2) {
    fprintf(stderr, "%s", USAGE);
    return(1);
  }

  columnData = NULL;
  stringData = NULL;
  input = output = columnName = NULL;
  mode = -1;
  pipeFlags = flags = 0;
  gapAmount = changeAmount = rowLimit = gapFactor = 0;
  matchPattern = NULL;
  
  for (iArg=1; iArg<argc; iArg++) {
    if (scArg[iArg].arg_type==OPTION) {
      switch (matchCode=match_string(scArg[iArg].list[0], option, N_OPTIONS, 0)) {
      case SET_GAPIN:
        if ((scArg[iArg].n_items-=2)<0 || 
            !scanItemList(&flags, scArg[iArg].list+2, &scArg[iArg].n_items, 0,
                          "amount", SDDS_DOUBLE, &gapAmount, 1, GAPIN_AMOUNT, 
                          "factor", SDDS_DOUBLE, &gapFactor, 1, GAPIN_FACTOR, 
                          NULL) ||
            (flags&GAPIN_AMOUNT && gapAmount<=0) ||
            (flags&GAPIN_FACTOR && gapFactor<=0)) {
          fprintf(stderr, "Error: invalid -gapin syntax/values\n");
          return(1);
        }
        columnName = scArg[iArg].list[1];
        mode = matchCode;
        break;
      case SET_INCREASEOF: case SET_DECREASEOF:
        if (scArg[iArg].n_items!=2) {
          fprintf(stderr, "Error: invalid option syntax---specify column-name with -increaseof and -decreaseof\n");
          return(1);
        }
        columnName = scArg[iArg].list[1];
        mode = matchCode;
        break;
      case SET_CHANGEOF:
        if ((scArg[iArg].n_items-=2)<0 ||
            !scanItemList(&changeFlags, scArg[iArg].list+2, &scArg[iArg].n_items,  0,
                          "amount", SDDS_DOUBLE, &changeAmount, 1, CHANGEOF_AMOUNT, 
                          "base", SDDS_DOUBLE, &changeBase, 1, CHANGEOF_BASE, 
                          NULL) ||
            (changeFlags&CHANGEOF_AMOUNT && changeAmount<=0)) {
          fprintf(stderr, "Error: invalid -changeof syntax/values\n");
          return(1);
        }
        columnName = scArg[iArg].list[1];
        mode = matchCode;
        break;
      case SET_ROWLIMIT:
        if (scArg[iArg].n_items<2) {
          fprintf(stderr, "Error: invalid -rowlimit syntax\n");
          return(1);
        }
        if (sscanf(scArg[iArg].list[1], "%ld", &rowLimit)!=1 ||
            rowLimit<=0) {
          fprintf(stderr, "Error: invalid -rowlimit syntax\n");
          return(1);
        }
        if (scArg[iArg].n_items>2) {
          scArg[iArg].n_items-=2;
          if (!scanItemList(&flags, scArg[iArg].list+2, &scArg[iArg].n_items,  0,
                           "overlap", SDDS_LONG, &overlap, NULL) ||
              overlap<0) {
            fprintf(stderr, "Error: invalid overlap given in -rowlimit syntax\n");
            return(1);
          }
        }
        mode = matchCode;
        break;
      case SET_PIPE:
        if (!processPipeOption(scArg[iArg].list+1, scArg[iArg].n_items-1, &pipeFlags)) {
          fprintf(stderr, "Error: invalid -pipe syntax\n");
          return(1);
        }
        break;
      case SET_MATCHTO:
        if ((scArg[iArg].n_items!=3 && scArg[iArg].n_items!=4) ||
            strlen(columnName=scArg[iArg].list[1])==0 || 
            strlen(matchPattern=scArg[iArg].list[2])==0) {
          fprintf(stderr, "Error: invalid -matchTo syntax\n");
          return(1);
        }
        if (scArg[iArg].n_items==4) {
          if (strncmp(scArg[iArg].list[3], "after", strlen(scArg[iArg].list[3]))==0)
            matchPatternAfter = 1;
          else {
            fprintf(stderr, "Error: invalid -matchTo syntax\n");
            return(1);
          }
        }
        mode = matchCode;
        break;
      default:
        fprintf(stderr, "Error: unknown switch: %s\n", scArg[iArg].list[0]);
        fprintf(stderr, "%s", USAGE);
        return(1);
      }
    }
    else {
      if (input==NULL)
        input = scArg[iArg].list[0];
      else if (output==NULL)
        output = scArg[iArg].list[0];
      else {
        fprintf(stderr, "Error: too many filenames given\n");
        return(1);
      }
    }
  }

  processFilenames("sddsbreak", &input, &output, pipeFlags, 0, &tmpfile_used);

  if (mode==-1) {
    fprintf(stderr, "Error: no break mode specified\n");
    return(1);
  }

  if (!SDDS_InitializeInput(&SDDSold, input) || 
      !SDDS_InitializeCopy(&SDDSnew, &SDDSold, output, "w")) {
    SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
    return(1);
  }

  SDDSnew.layout.data_mode.no_row_counts = 0;
  if (!SDDS_WriteLayout(&SDDSnew)) {
    SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
    return(1);
  }
    
  if (mode!=SET_ROWLIMIT) {
    if (SDDS_GetColumnInformation(&SDDSold, "type", &dataType, SDDS_BY_NAME, columnName)!=SDDS_LONG) {
      SDDS_SetError("problem getting type information on given column");
      SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
      return(1);
    }
    if (mode==SET_MATCHTO) {
      if (!(dataType==SDDS_STRING)) {
        fprintf(stderr, "Error: given column does not contain string data\n");
        return(1);
      }
    } else if (!SDDS_NUMERIC_TYPE(dataType)) {
      if (!(mode==SET_CHANGEOF && !(changeFlags&CHANGEOF_AMOUNT) && !(changeFlags&CHANGEOF_BASE))) {
        fprintf(stderr, "Error: given column does not contain numeric data\n");
        return(1);
      }
    }
  }

  while ((retval=SDDS_ReadPage(&SDDSold))>0) {
    if ((rows = SDDS_CountRowsOfInterest(&SDDSold))<0) {
      SDDS_SetError("Problem getting number of rows of tabular data");
      SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
      return(1);
    }
    rowsMinus1 = rows-1;
    if (!SDDS_StartPage(&SDDSnew, rows) ||
        !SDDS_CopyParameters(&SDDSnew, &SDDSold) ||
        !SDDS_CopyArrays(&SDDSnew, &SDDSold)) {
      SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
      return(1);
    }
    if (rows==0) {
      if (!SDDS_WritePage(&SDDSnew)) {
        SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
        return(1);
      }
      continue;
    }
    switch (mode) {
    case SET_GAPIN:
      if (!(columnData=SDDS_GetColumnInDoubles(&SDDSold, columnName))) {
        SDDS_SetError("unable to read specified column");
        SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
        return(1);
      }
      if (!gapAmount && rows>1) {
        double *gap;
        gap = tmalloc(sizeof(*gap)*rows);
        for (i=1; i<rows; i++)
          gap[i-1] = fabs(columnData[i]-columnData[i-1]);
        if (!compute_average(&gapAmount, gap, rows-1)) {
          fprintf(stderr, "Error: unable to determine default gap amount--couldn't find median gap\n");
          return(1);
        }
        gapAmount *= (gapFactor?gapFactor:2);
        free(gap);
      }
      newStart = 0;
      for (i=1; i<=rows; i++) {
        if (i!=rows && fabs(columnData[i]-columnData[i-1])<gapAmount)
          continue;
        if (!SDDS_SetRowFlags(&SDDSold, 0) || 
            !SDDS_AssertRowFlags(&SDDSold, SDDS_INDEX_LIMITS, newStart, i-1, 1) ||
            !SDDS_CopyRowsOfInterest(&SDDSnew, &SDDSold) || !SDDS_WritePage(&SDDSnew)) {
          SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
          return(1);
        }
        newStart = i;
      }
      free(columnData);
      break;
    case SET_INCREASEOF:
      if (!(columnData=SDDS_GetColumnInDoubles(&SDDSold, columnName))) {
        SDDS_SetError("unable to read specified column");
        SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
        return(1);
      }
      newStart = 0;
      for (i=1; i<=rows; i++) {
        if (i!=rows && columnData[i]<=columnData[i-1]) 
          continue;
        if (!SDDS_SetRowFlags(&SDDSold, 0) || 
            !SDDS_AssertRowFlags(&SDDSold, SDDS_INDEX_LIMITS, newStart, i-1, 1) ||
            !SDDS_CopyRowsOfInterest(&SDDSnew, &SDDSold) || !SDDS_WritePage(&SDDSnew)) {
          SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
          return(1);
        }
        newStart = i;
      }
      free(columnData);
      break;
    case SET_DECREASEOF:
      if (!(columnData=SDDS_GetColumnInDoubles(&SDDSold, columnName))) {
        SDDS_SetError("unable to read specified column");
        SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
        return(1);
      }
      newStart = 0;
      for (i=1; i<=rows; i++) {
        if (i!=rows && columnData[i]>=columnData[i-1]) 
          continue;
        if (!SDDS_SetRowFlags(&SDDSold, 0) || 
            !SDDS_AssertRowFlags(&SDDSold, SDDS_INDEX_LIMITS, newStart, i-1, 1) ||
            !SDDS_CopyRowsOfInterest(&SDDSnew, &SDDSold) || !SDDS_WritePage(&SDDSnew)) {
          SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
          return(1);
        }
        newStart = i;
      }
      free(columnData);
      break;
    case SET_CHANGEOF:
      if (dataType!=SDDS_STRING) {
        if (!(columnData=SDDS_GetColumnInDoubles(&SDDSold, columnName))) {
          SDDS_SetError("unable to read specified column");
          SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
          return(1);
        }
      } else {
        if (!(stringData=SDDS_GetColumn(&SDDSold, columnName))) {
          SDDS_SetError("unable to read specified column");
          SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
          return(1);
        }
      }
      newStart = 0;
      if (dataType==SDDS_STRING || !changeAmount) {
        for (i=1; i<=rows; i++) {
          if (i!=rows && 
              ((dataType==SDDS_STRING && strcmp(stringData[i], stringData[i-1])==0) ||
               (dataType!=SDDS_STRING && columnData[i]==columnData[i-1])))
            continue;
          if (!SDDS_SetRowFlags(&SDDSold, 0) || 
              !SDDS_AssertRowFlags(&SDDSold, SDDS_INDEX_LIMITS, newStart, i-1, 1) ||
              !SDDS_CopyRowsOfInterest(&SDDSnew, &SDDSold) || !SDDS_WritePage(&SDDSnew)) {
            SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
            return(1);
          }
          newStart = i;
        }
      }
      else {
        long region, lastRegion;
        region = lastRegion = 0;
        if (!(changeFlags&CHANGEOF_BASE) && rows>=1)
          changeBase = columnData[0];
        if (rows>1)
          lastRegion = (columnData[0]-changeBase)/changeAmount;
#ifdef DEBUG
        fprintf(stderr, "change base=%e, lastRegion=%ld\n", changeBase, lastRegion);
        fprintf(stderr, "start value = %e\n", columnData[0]);
#endif
        newStart = 0;
        for (i=1; i<=rows; i++) {
          if (i!=rows)
            region = (columnData[i]-changeBase)/changeAmount;
          if (i!=rows && region==lastRegion)
            continue;
#ifdef DEBUG
          fprintf(stderr, "split after %e, before %e, region = %d\n", 
                  columnData[i-1], columnData[i], region);
#endif
          if (!SDDS_SetRowFlags(&SDDSold, 0) || 
              !SDDS_AssertRowFlags(&SDDSold, SDDS_INDEX_LIMITS, newStart, i-1, 1) ||
              !SDDS_CopyRowsOfInterest(&SDDSnew, &SDDSold) || !SDDS_WritePage(&SDDSnew)) {
            SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
            return(1);
          }
          newStart = i;
          lastRegion = region;
#ifdef DEBUG
          fprintf(stderr, "start value = %e\n", columnData[i]);
#endif
        }
      }
      if (dataType!=SDDS_STRING)
        free(columnData);
      else 
        SDDS_FreeStringArray(stringData, rows);
      break;
    case SET_MATCHTO:
      if (!(stringData=SDDS_GetColumn(&SDDSold, columnName))) {
        SDDS_SetError("unable to read specified column");
        SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
        return(1);
      }
      newStart = 0;
      breakNext = 0;
      for (i=1; i<=rows; i++) {
        if (i!=rows && !breakNext) {
          if (wild_match(stringData[i], matchPattern)) {
            if (matchPatternAfter) {
              breakNext = 1;
              continue;
            }
          } else 
            continue;
        }
        if (!SDDS_SetRowFlags(&SDDSold, 0) || 
            !SDDS_AssertRowFlags(&SDDSold, SDDS_INDEX_LIMITS, newStart, i-1, 1) ||
            !SDDS_CopyRowsOfInterest(&SDDSnew, &SDDSold) || !SDDS_WritePage(&SDDSnew)) {
          SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
          return(1);
        }
        breakNext = 0;
        newStart = i;
      }
      SDDS_FreeStringArray(stringData, rows);
      break;
    case SET_ROWLIMIT:
      for (i=0; i<rows; i+=rowLimit-overlap) {
        if ((j=i+rowLimit-1)>=rows)
          j = rows-1;
        if (!SDDS_SetRowFlags(&SDDSold, 0) || 
            !SDDS_AssertRowFlags(&SDDSold, SDDS_INDEX_LIMITS, i, j, 1) ||
            !SDDS_CopyRowsOfInterest(&SDDSnew, &SDDSold) || !SDDS_WritePage(&SDDSnew)) {
          SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
          return(1);
        }
        if (j==rows-1)
          break;
      }
      break;
    default:
      fprintf(stderr, "Error: unknown break mode code seen---this can't happen\n");
      return(1);
    }
  }
  if (retval==0) {
    SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
    return(1);
  }
  if (!SDDS_Terminate(&SDDSold)) {
    SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
    return(1);
  }
  if (tmpfile_used && !replaceFileAndBackUp(input, output)) {
    return(1);
  }
  return(0);
}
コード例 #3
0
ファイル: sddsselect.c プロジェクト: epicsdeb/sdds
int main(int argc, char **argv)
{
    SDDS_DATASET SDDS_1, SDDS_2, SDDS_output;
    long i, j, i_arg, rows1, rows2, reuse, reusePage, i1, i2;
    SCANNED_ARG *s_arg;
    char s[200], *ptr;
    char **match_column, **equate_column;
    long match_columns, equate_columns;
    char *input1, *input2, *output;
    long tmpfile_used, retval1, retval2;
    long warnings, invert;
    unsigned long pipeFlags;
    KEYED_EQUIVALENT **keyGroup=NULL;
    long keyGroups=0;
    
    SDDS_RegisterProgramName(argv[0]);
    argc = scanargs(&s_arg, argc, argv);
    if (argc<3) 
        bomb(NULL, USAGE);

    input1 = input2 = output = NULL;
    match_column  = equate_column  = NULL;
    match_columns = equate_columns = reuse = reusePage = 0;
    tmpfile_used = invert = 0;
    warnings = 1;
    pipeFlags = 0;

    for (i_arg=1; i_arg<argc; i_arg++) {
        if (s_arg[i_arg].arg_type==OPTION) {
            delete_chars(s_arg[i_arg].list[0], "_");
            switch (match_string(s_arg[i_arg].list[0], option, N_OPTIONS, 0)) {
              case SET_MATCH_COLUMN:
                if (s_arg[i_arg].n_items!=2)
                    SDDS_Bomb("invalid -match syntax");
                if (match_columns!=0)
                    SDDS_Bomb("only one -match option may be given");
		match_column = tmalloc(sizeof(*match_column)*2);
                if ((ptr=strchr(s_arg[i_arg].list[1], '=')))
                    *ptr++ = 0;
                else 
                    ptr = s_arg[i_arg].list[1];
                match_column[0] = s_arg[i_arg].list[1];
                match_column[1] = ptr;
		match_columns = 1;
                break;
              case SET_EQUATE_COLUMN:
                if (s_arg[i_arg].n_items!=2)
                    SDDS_Bomb("invalid -equate syntax");
                if (equate_columns!=0)
                    SDDS_Bomb("only one -equate option may be given");
		equate_column = tmalloc(sizeof(*equate_column)*2);
                if ((ptr=strchr(s_arg[i_arg].list[1], '=')))
                    *ptr++ = 0;
                else 
                    ptr = s_arg[i_arg].list[1];
                equate_column[0] = s_arg[i_arg].list[1];
                equate_column[1] = ptr;
		equate_columns = 1;
                break;
              case SET_REUSE:
                if (s_arg[i_arg].n_items==1)
                    reuse = 1;
                else {
                    char *reuseOptions[2] = {"rows", "page"};
                    for (i=1; i<s_arg[i_arg].n_items; i++) {
                        switch (match_string(s_arg[i_arg].list[i], reuseOptions, 2, 0)) {
                          case 0:
                            reuse = 1;
                            break;
                          case 1:
                            reusePage = 1;
                            break;
                          default:
                            SDDS_Bomb("unknown reuse keyword");
                            break;
                            }
                        }
                    }
                break;
              case SET_INVERT:
                invert = 1;
                break;
              case SET_NOWARNINGS:
                warnings = 0;
                break;
              case SET_PIPE:
                if (!processPipeOption(s_arg[i_arg].list+1, s_arg[i_arg].n_items-1, &pipeFlags))
                    SDDS_Bomb("invalid -pipe syntax");
                break;
              default:
                fprintf(stderr, "error: unknown switch: %s\n", s_arg[i_arg].list[0]);
                SDDS_Bomb(NULL);
                break;
                }
            }
        else {
            if (input1==NULL)
                input1 = s_arg[i_arg].list[0];
            else if (input2==NULL)
                input2 = s_arg[i_arg].list[0];
            else if (output==NULL)
                output = s_arg[i_arg].list[0];
            else
                SDDS_Bomb("too many filenames");
            }
        }

    if (pipeFlags&USE_STDIN && input1) {
        if (output)
            SDDS_Bomb("too many filenames (sddsxref)");
        output = input2;
        input2 = input1;
        input1 = NULL;
        }
    processFilenames("sddsselect", &input1, &output, pipeFlags, !warnings, &tmpfile_used);
    if (!input2)
        SDDS_Bomb("second input file not specified (sddsxref)");

    if (equate_columns && match_columns)
        SDDS_Bomb("only one of -equate or -match may be given");
    if (!equate_columns && !match_columns)
        SDDS_Bomb("one of -equate or -match must be given");

    if (!SDDS_InitializeInput(&SDDS_1, input1)) {
        SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
        exit(1);
        }
    if (!SDDS_InitializeInput(&SDDS_2, input2)) {
        SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
        exit(1);
        }

    if (match_columns) {
        if ((j=SDDS_GetColumnIndex(&SDDS_1, match_column[0]))<0 || SDDS_GetColumnType(&SDDS_1, j)!=SDDS_STRING) {
            sprintf(s, "error: column %s not found or not string type in file %s", match_column[0], input1?input1:"stdin");
            SDDS_SetError(s);
            SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors|SDDS_EXIT_PrintErrors);
            }
        if ((j=SDDS_GetColumnIndex(&SDDS_2, match_column[1]))<0 || SDDS_GetColumnType(&SDDS_2, j)!=SDDS_STRING) {
            sprintf(s, "error: column %s not found or not string type in file %s", match_column[1], input2);
            SDDS_SetError(s);
            SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors|SDDS_EXIT_PrintErrors);
            }
        }
    if (equate_columns) {
        if ((j=SDDS_GetColumnIndex(&SDDS_1, equate_column[0]))<0 || !SDDS_NUMERIC_TYPE(SDDS_GetColumnType(&SDDS_1, j))) {
            sprintf(s, "error: column %s not found or not numeric type in file %s", equate_column[0], input1?input1:"stdin");
            SDDS_SetError(s);
            SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors|SDDS_EXIT_PrintErrors);
            }
        if ((j=SDDS_GetColumnIndex(&SDDS_2, equate_column[1]))<0 || !SDDS_NUMERIC_TYPE(SDDS_GetColumnType(&SDDS_2, j))) {
            sprintf(s, "error: column %s not found or not numeric type in file %s", equate_column[1], input2);
            SDDS_SetError(s);
            SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors|SDDS_EXIT_PrintErrors);
            }
        }

    if (output && pipeFlags&USE_STDOUT)
        SDDS_Bomb("too many filenames with -pipe option");
    if (!output && !(pipeFlags&USE_STDOUT)) {
        if (warnings)
            fprintf(stderr, "warning: existing file %s will be replaced (sddsselect)\n", input1?input1:"stdin");
        tmpfile_used = 1;
        cp_str(&output, tmpname(NULL));
        }
    if (!SDDS_InitializeCopy(&SDDS_output, &SDDS_1, output, "w")) {
        SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
        exit(1);
        }

    if (!SDDS_WriteLayout(&SDDS_output)) 
        SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors|SDDS_EXIT_PrintErrors);
   
    while ((retval1=SDDS_ReadPage(&SDDS_1))>0) {
        if (!reusePage) {
            if ((retval2=SDDS_ReadPage(&SDDS_2))<=0) {
                if (warnings)
                    fprintf(stderr, "warning: <input2> ends before <input1>\n");
                if (invert) {
                    /* nothing to match, so everything would normally be thrown out */
                    if (!SDDS_CopyPage(&SDDS_output, &SDDS_1) || !SDDS_WritePage(&SDDS_output))
                        SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors|SDDS_EXIT_PrintErrors);
                    continue;
                    }
                else 
                    /* nothing to match, so everything thrown out */
                    break;
                }
            }
        else {
            if (retval1==1 && (retval2=SDDS_ReadPage(&SDDS_2))<=0)
                SDDS_Bomb("<input2> has no data");
            SDDS_SetRowFlags(&SDDS_2, 1);
            }
        rows1 = SDDS_CountRowsOfInterest(&SDDS_1);
        rows2 = SDDS_CountRowsOfInterest(&SDDS_2);
        
        if (!SDDS_StartPage(&SDDS_output, rows1)) {
            SDDS_SetError("Problem starting output page");
            SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors|SDDS_EXIT_PrintErrors);
            }
        if (!SDDS_CopyParameters(&SDDS_output, &SDDS_2) || !SDDS_CopyArrays(&SDDS_output, &SDDS_2)) {
            SDDS_SetError("Problem copying parameter or array data from second input file");
            SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors|SDDS_EXIT_PrintErrors);
            }
        if (!SDDS_CopyParameters(&SDDS_output, &SDDS_1) || !SDDS_CopyArrays(&SDDS_output, &SDDS_1)) {
            SDDS_SetError("Problem copying parameter or array data from first input file");
            SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors|SDDS_EXIT_PrintErrors);
            }
        if (match_columns) {
          char **string1, **string2;
          long matched;
          string2 = NULL;
          if (!(string1 = SDDS_GetColumn(&SDDS_1, match_column[0]))) {
            fprintf(stderr, "Error: problem getting column %s from file %s\n", 
                    match_column[0], input1?input1:"stdin");
            SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors|SDDS_EXIT_PrintErrors);
          }
          if (rows2 && !(string2 = SDDS_GetColumn(&SDDS_2, match_column[1]))) {
            fprintf(stderr, "Error: problem getting column %s from file %s\n", 
                    match_column[1], input2);
            SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors|SDDS_EXIT_PrintErrors);
          }
          if (rows2)
            keyGroup = MakeSortedKeyGroups(&keyGroups, SDDS_STRING, string2, rows2);
          for (i1=0; i1<rows1; i1++) {
            if (!SDDS_CopyRowDirect(&SDDS_output, i1, &SDDS_1, i1)) {
              sprintf(s, "Problem copying row %ld of first data set", i1);
              SDDS_SetError(s);
                    SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors|SDDS_EXIT_PrintErrors);
            }
            matched = 0;
            if (rows2 &&(i2 = FindMatchingKeyGroup(keyGroup, keyGroups, SDDS_STRING, string1+i1, reuse))>=0) {
              matched = 1;
            }
            if ((!matched && !invert) || (matched && invert)) {
              if (!SDDS_AssertRowFlags(&SDDS_output, SDDS_INDEX_LIMITS, i1, i1, 0)) 
                SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors|SDDS_EXIT_PrintErrors);
            }
          }
          if (string1) {
            for (i=0;i<rows1;i++) 
              free(string1[i]);
            free(string1);
            string1 = NULL;
          }
          if (string2) {
            for (i=0;i<rows2;i++) 
              free(string2[i]);
            free(string2);
            string2 = NULL;
          }
          for (i=0;i<keyGroups;i++) {
	    if (keyGroup[i]) {
	      if (keyGroup[i]->equivalent)
		free(keyGroup[i]->equivalent);
	      free(keyGroup[i]);
	      keyGroup[i] = NULL;
	    }
          }
          if (keyGroups) {
            free(keyGroup);
	    keyGroup = NULL;
	    keyGroups = 0;
	  }
        }
        else if (equate_columns) {
          double *value1, *value2;
          long equated;
          value2 = NULL;
          if (!(value1 = SDDS_GetColumnInDoubles(&SDDS_1, equate_column[0]))) {
            fprintf(stderr, "Error: problem getting column %s from file %s\n", 
                    equate_column[0], input1?input1:"stdin");
            SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors|SDDS_EXIT_PrintErrors);
          }
          if (rows2 && !(value2 = SDDS_GetColumnInDoubles(&SDDS_2, equate_column[1]))) {
            fprintf(stderr, "Error: problem getting column %s from file %s\n", 
                    equate_column[1], input2);
            SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors|SDDS_EXIT_PrintErrors);
          }
          if (rows2)
            keyGroup = MakeSortedKeyGroups(&keyGroups, SDDS_DOUBLE, value2, rows2);
          for (i1=0; i1<rows1; i1++) {
            if (!SDDS_CopyRowDirect(&SDDS_output, i1, &SDDS_1, i1)) {
              sprintf(s, "Problem copying row %ld of first data set", i1);
              SDDS_SetError(s);
              SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors|SDDS_EXIT_PrintErrors);
            }
            equated = 0;
            if (rows2 && (i2 = FindMatchingKeyGroup(keyGroup, keyGroups, SDDS_DOUBLE, value1+i1, reuse))>=0) {
              equated = 1;
            }
            if ((!equated && !invert) || (equated && invert)) {
              if (!SDDS_AssertRowFlags(&SDDS_output, SDDS_INDEX_LIMITS, i1, i1, 0)) 
                SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors|SDDS_EXIT_PrintErrors);
            }
          }
          if (value1)
            free(value1);
          value1 = NULL;
          if (rows2 && value2)
            free(value2);
          value2 = NULL;
          for (i=0;i<keyGroups;i++) {
	    if (keyGroup[i]) {
	      if (keyGroup[i]->equivalent)
		free(keyGroup[i]->equivalent);
	      free(keyGroup[i]);
	      keyGroup[i] = NULL;
	    }
          }
          if (keyGroups) {
            free(keyGroup);
	    keyGroup = NULL;
	    keyGroups = 0;
	  }
        }
        if (!SDDS_WritePage(&SDDS_output)) {
          SDDS_SetError("Problem writing data to output file");
          SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors|SDDS_EXIT_PrintErrors);
        }
      }

    if (!SDDS_Terminate(&SDDS_1) || !SDDS_Terminate(&SDDS_2) || !SDDS_Terminate(&SDDS_output)) {
      SDDS_PrintErrors(stderr, SDDS_VERBOSE_PrintErrors);
      exit(1);
    }
    if (tmpfile_used && !replaceFileAndBackUp(input1, output))
        exit(1);
    free_scanargs(&s_arg,argc);
    if (match_columns) 
      free(match_column);
    return(0);
}