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editcol.c
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editcol.c
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/* This file, editcol.c, contains the set of FITSIO routines that */
/* insert or delete rows or columns in a table or resize an image */
/* The FITSIO software was written by William Pence at the High Energy */
/* Astrophysic Science Archive Research Center (HEASARC) at the NASA */
/* Goddard Space Flight Center. */
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#include "fitsio2.h"
/*--------------------------------------------------------------------------*/
int ffrsim(fitsfile *fptr, /* I - FITS file pointer */
int bitpix, /* I - bits per pixel */
int naxis, /* I - number of axes in the array */
long *naxes, /* I - size of each axis */
int *status) /* IO - error status */
/*
resize an existing primary array or IMAGE extension.
*/
{
LONGLONG tnaxes[99];
int ii;
if (*status > 0)
return(*status);
for (ii = 0; (ii < naxis) && (ii < 99); ii++)
tnaxes[ii] = naxes[ii];
ffrsimll(fptr, bitpix, naxis, tnaxes, status);
return(*status);
}
/*--------------------------------------------------------------------------*/
int ffrsimll(fitsfile *fptr, /* I - FITS file pointer */
int bitpix, /* I - bits per pixel */
int naxis, /* I - number of axes in the array */
LONGLONG *naxes, /* I - size of each axis */
int *status) /* IO - error status */
/*
resize an existing primary array or IMAGE extension.
*/
{
int ii, simple, obitpix, onaxis, extend, nmodify;
long nblocks, longval;
long pcount, gcount, longbitpix;
LONGLONG onaxes[99], newsize, oldsize;
char comment[FLEN_COMMENT], keyname[FLEN_KEYWORD], message[FLEN_ERRMSG];
if (*status > 0)
return(*status);
/* reset position to the correct HDU if necessary */
if (fptr->HDUposition != (fptr->Fptr)->curhdu)
{
ffmahd(fptr, (fptr->HDUposition) + 1, NULL, status);
}
/* rescan header if data structure is undefined */
else if ((fptr->Fptr)->datastart == DATA_UNDEFINED)
if ( ffrdef(fptr, status) > 0)
return(*status);
/* get current image size parameters */
if (ffghprll(fptr, 99, &simple, &obitpix, &onaxis, onaxes, &pcount,
&gcount, &extend, status) > 0)
return(*status);
longbitpix = bitpix;
/* test for the 4 special cases that represent unsigned integers
or signed bytes */
if (longbitpix == USHORT_IMG)
longbitpix = SHORT_IMG;
else if (longbitpix == ULONG_IMG)
longbitpix = LONG_IMG;
else if (longbitpix == SBYTE_IMG)
longbitpix = BYTE_IMG;
else if (longbitpix == ULONGLONG_IMG)
longbitpix = LONGLONG_IMG;
/* test that the new values are legal */
if (longbitpix != BYTE_IMG && longbitpix != SHORT_IMG &&
longbitpix != LONG_IMG && longbitpix != LONGLONG_IMG &&
longbitpix != FLOAT_IMG && longbitpix != DOUBLE_IMG)
{
snprintf(message, FLEN_ERRMSG,
"Illegal value for BITPIX keyword: %d", bitpix);
ffpmsg(message);
return(*status = BAD_BITPIX);
}
if (naxis < 0 || naxis > 999)
{
snprintf(message, FLEN_ERRMSG,
"Illegal value for NAXIS keyword: %d", naxis);
ffpmsg(message);
return(*status = BAD_NAXIS);
}
if (naxis == 0)
newsize = 0;
else
newsize = 1;
for (ii = 0; ii < naxis; ii++)
{
if (naxes[ii] < 0)
{
snprintf(message, FLEN_ERRMSG,
"Illegal value for NAXIS%d keyword: %.0f", ii + 1, (double) (naxes[ii]));
ffpmsg(message);
return(*status = BAD_NAXES);
}
newsize *= naxes[ii]; /* compute new image size, in pixels */
}
/* compute size of old image, in bytes */
if (onaxis == 0)
oldsize = 0;
else
{
oldsize = 1;
for (ii = 0; ii < onaxis; ii++)
oldsize *= onaxes[ii];
oldsize = (oldsize + pcount) * gcount * (abs(obitpix) / 8);
}
oldsize = (oldsize + 2879) / 2880; /* old size, in blocks */
newsize = (newsize + pcount) * gcount * (labs(longbitpix) / 8);
newsize = (newsize + 2879) / 2880; /* new size, in blocks */
if (newsize > oldsize) /* have to insert new blocks for image */
{
nblocks = (long) (newsize - oldsize);
if (ffiblk(fptr, nblocks, 1, status) > 0)
return(*status);
}
else if (oldsize > newsize) /* have to delete blocks from image */
{
nblocks = (long) (oldsize - newsize);
if (ffdblk(fptr, nblocks, status) > 0)
return(*status);
}
/* now update the header keywords */
strcpy(comment,"&"); /* special value to leave comments unchanged */
if (longbitpix != obitpix)
{ /* update BITPIX value */
ffmkyj(fptr, "BITPIX", longbitpix, comment, status);
}
if (naxis != onaxis)
{ /* update NAXIS value */
longval = naxis;
ffmkyj(fptr, "NAXIS", longval, comment, status);
}
/* modify the existing NAXISn keywords */
nmodify = minvalue(naxis, onaxis);
for (ii = 0; ii < nmodify; ii++)
{
ffkeyn("NAXIS", ii+1, keyname, status);
ffmkyj(fptr, keyname, naxes[ii], comment, status);
}
if (naxis > onaxis) /* insert additional NAXISn keywords */
{
strcpy(comment,"length of data axis");
for (ii = onaxis; ii < naxis; ii++)
{
ffkeyn("NAXIS", ii+1, keyname, status);
ffikyj(fptr, keyname, naxes[ii], comment, status);
}
}
else if (onaxis > naxis) /* delete old NAXISn keywords */
{
for (ii = naxis; ii < onaxis; ii++)
{
ffkeyn("NAXIS", ii+1, keyname, status);
ffdkey(fptr, keyname, status);
}
}
/* Update the BSCALE and BZERO keywords, if an unsigned integer image
or a signed byte image. */
if (bitpix == USHORT_IMG)
{
strcpy(comment, "offset data range to that of unsigned short");
ffukyg(fptr, "BZERO", 32768., 0, comment, status);
strcpy(comment, "default scaling factor");
ffukyg(fptr, "BSCALE", 1.0, 0, comment, status);
}
else if (bitpix == ULONG_IMG)
{
strcpy(comment, "offset data range to that of unsigned long");
ffukyg(fptr, "BZERO", 2147483648., 0, comment, status);
strcpy(comment, "default scaling factor");
ffukyg(fptr, "BSCALE", 1.0, 0, comment, status);
}
else if (bitpix == ULONGLONG_IMG)
{
strcpy(comment, "offset data range to that of unsigned long long");
ffukyg(fptr, "BZERO", 9223372036854775808., 0, comment, status);
strcpy(comment, "default scaling factor");
ffukyg(fptr, "BSCALE", 1.0, 0, comment, status);
}
else if (bitpix == SBYTE_IMG)
{
strcpy(comment, "offset data range to that of signed byte");
ffukyg(fptr, "BZERO", -128., 0, comment, status);
strcpy(comment, "default scaling factor");
ffukyg(fptr, "BSCALE", 1.0, 0, comment, status);
}
/* re-read the header, to make sure structures are updated */
ffrdef(fptr, status);
return(*status);
}
/*--------------------------------------------------------------------------*/
int ffirow(fitsfile *fptr, /* I - FITS file pointer */
LONGLONG firstrow, /* I - insert space AFTER this row */
/* 0 = insert space at beginning of table */
LONGLONG nrows, /* I - number of rows to insert */
int *status) /* IO - error status */
/*
insert NROWS blank rows immediated after row firstrow (1 = first row).
Set firstrow = 0 to insert space at the beginning of the table.
*/
{
int tstatus;
LONGLONG naxis1, naxis2;
LONGLONG datasize, firstbyte, nshift, nbytes;
LONGLONG freespace;
long nblock;
if (*status > 0)
return(*status);
/* reset position to the correct HDU if necessary */
if (fptr->HDUposition != (fptr->Fptr)->curhdu)
{
ffmahd(fptr, (fptr->HDUposition) + 1, NULL, status);
}
/* rescan header if data structure is undefined */
else if ((fptr->Fptr)->datastart == DATA_UNDEFINED)
if ( ffrdef(fptr, status) > 0)
return(*status);
if ((fptr->Fptr)->hdutype == IMAGE_HDU)
{
ffpmsg("Can only add rows to TABLE or BINTABLE extension (ffirow)");
return(*status = NOT_TABLE);
}
if (nrows < 0 )
return(*status = NEG_BYTES);
else if (nrows == 0)
return(*status); /* no op, so just return */
/* get the current size of the table */
/* use internal structure since NAXIS2 keyword may not be up to date */
naxis1 = (fptr->Fptr)->rowlength;
naxis2 = (fptr->Fptr)->numrows;
if (firstrow > naxis2)
{
ffpmsg(
"Insert position greater than the number of rows in the table (ffirow)");
return(*status = BAD_ROW_NUM);
}
else if (firstrow < 0)
{
ffpmsg("Insert position is less than 0 (ffirow)");
return(*status = BAD_ROW_NUM);
}
/* current data size */
datasize = (fptr->Fptr)->heapstart + (fptr->Fptr)->heapsize;
freespace = ( ( (datasize + 2879) / 2880) * 2880) - datasize;
nshift = naxis1 * nrows; /* no. of bytes to add to table */
if ( (freespace - nshift) < 0) /* not enough existing space? */
{
nblock = (long) ((nshift - freespace + 2879) / 2880); /* number of blocks */
ffiblk(fptr, nblock, 1, status); /* insert the blocks */
}
firstbyte = naxis1 * firstrow; /* relative insert position */
nbytes = datasize - firstbyte; /* no. of bytes to shift down */
firstbyte += ((fptr->Fptr)->datastart); /* absolute insert position */
ffshft(fptr, firstbyte, nbytes, nshift, status); /* shift rows and heap */
/* update the heap starting address */
(fptr->Fptr)->heapstart += nshift;
/* update the THEAP keyword if it exists */
tstatus = 0;
ffmkyj(fptr, "THEAP", (fptr->Fptr)->heapstart, "&", &tstatus);
/* update the NAXIS2 keyword */
ffmkyj(fptr, "NAXIS2", naxis2 + nrows, "&", status);
((fptr->Fptr)->numrows) += nrows;
((fptr->Fptr)->origrows) += nrows;
return(*status);
}
/*--------------------------------------------------------------------------*/
int ffdrow(fitsfile *fptr, /* I - FITS file pointer */
LONGLONG firstrow, /* I - first row to delete (1 = first) */
LONGLONG nrows, /* I - number of rows to delete */
int *status) /* IO - error status */
/*
delete NROWS rows from table starting with firstrow (1 = first row of table).
*/
{
int tstatus;
LONGLONG naxis1, naxis2;
LONGLONG datasize, firstbyte, nbytes, nshift;
LONGLONG freespace;
long nblock;
char comm[FLEN_COMMENT];
if (*status > 0)
return(*status);
if (fptr->HDUposition != (fptr->Fptr)->curhdu)
{
ffmahd(fptr, (fptr->HDUposition) + 1, NULL, status);
}
/* rescan header if data structure is undefined */
else if ((fptr->Fptr)->datastart == DATA_UNDEFINED)
if ( ffrdef(fptr, status) > 0)
return(*status);
if ((fptr->Fptr)->hdutype == IMAGE_HDU)
{
ffpmsg("Can only delete rows in TABLE or BINTABLE extension (ffdrow)");
return(*status = NOT_TABLE);
}
if (nrows < 0 )
return(*status = NEG_BYTES);
else if (nrows == 0)
return(*status); /* no op, so just return */
ffgkyjj(fptr, "NAXIS1", &naxis1, comm, status); /* get the current */
/* ffgkyj(fptr, "NAXIS2", &naxis2, comm, status);*/ /* size of the table */
/* the NAXIS2 keyword may not be up to date, so use the structure value */
naxis2 = (fptr->Fptr)->numrows;
if (firstrow > naxis2)
{
ffpmsg(
"Delete position greater than the number of rows in the table (ffdrow)");
return(*status = BAD_ROW_NUM);
}
else if (firstrow < 1)
{
ffpmsg("Delete position is less than 1 (ffdrow)");
return(*status = BAD_ROW_NUM);
}
else if (firstrow + nrows - 1 > naxis2)
{
ffpmsg("No. of rows to delete exceeds size of table (ffdrow)");
return(*status = BAD_ROW_NUM);
}
nshift = naxis1 * nrows; /* no. of bytes to delete from table */
/* cur size of data */
datasize = (fptr->Fptr)->heapstart + (fptr->Fptr)->heapsize;
firstbyte = naxis1 * (firstrow + nrows - 1); /* relative del pos */
nbytes = datasize - firstbyte; /* no. of bytes to shift up */
firstbyte += ((fptr->Fptr)->datastart); /* absolute delete position */
ffshft(fptr, firstbyte, nbytes, nshift * (-1), status); /* shift data */
freespace = ( ( (datasize + 2879) / 2880) * 2880) - datasize;
nblock = (long) ((nshift + freespace) / 2880); /* number of blocks */
/* delete integral number blocks */
if (nblock > 0)
ffdblk(fptr, nblock, status);
/* update the heap starting address */
(fptr->Fptr)->heapstart -= nshift;
/* update the THEAP keyword if it exists */
tstatus = 0;
ffmkyj(fptr, "THEAP", (long)(fptr->Fptr)->heapstart, "&", &tstatus);
/* update the NAXIS2 keyword */
ffmkyj(fptr, "NAXIS2", naxis2 - nrows, "&", status);
((fptr->Fptr)->numrows) -= nrows;
((fptr->Fptr)->origrows) -= nrows;
/* Update the heap data, if any. This will remove any orphaned data */
/* that was only pointed to by the rows that have been deleted */
ffcmph(fptr, status);
return(*status);
}
/*--------------------------------------------------------------------------*/
int ffdrrg(fitsfile *fptr, /* I - FITS file pointer to table */
char *ranges, /* I - ranges of rows to delete (1 = first) */
int *status) /* IO - error status */
/*
delete the ranges of rows from the table (1 = first row of table).
The 'ranges' parameter typically looks like:
'10-20, 30 - 40, 55' or '50-'
and gives a list of rows or row ranges separated by commas.
*/
{
char *cptr;
int nranges, nranges2, ii;
long *minrow, *maxrow, nrows, *rowarray, jj, kk;
LONGLONG naxis2;
if (*status > 0)
return(*status);
if (fptr->HDUposition != (fptr->Fptr)->curhdu)
{
ffmahd(fptr, (fptr->HDUposition) + 1, NULL, status);
}
/* rescan header if data structure is undefined */
else if ((fptr->Fptr)->datastart == DATA_UNDEFINED)
if ( ffrdef(fptr, status) > 0)
return(*status);
if ((fptr->Fptr)->hdutype == IMAGE_HDU)
{
ffpmsg("Can only delete rows in TABLE or BINTABLE extension (ffdrrg)");
return(*status = NOT_TABLE);
}
/* the NAXIS2 keyword may not be up to date, so use the structure value */
naxis2 = (fptr->Fptr)->numrows;
/* find how many ranges were specified ( = no. of commas in string + 1) */
cptr = ranges;
for (nranges = 1; (cptr = strchr(cptr, ',')); nranges++)
cptr++;
minrow = calloc(nranges, sizeof(long));
maxrow = calloc(nranges, sizeof(long));
if (!minrow || !maxrow) {
*status = MEMORY_ALLOCATION;
ffpmsg("failed to allocate memory for row ranges (ffdrrg)");
if (maxrow) free(maxrow);
if (minrow) free(minrow);
return(*status);
}
/* parse range list into array of range min and max values */
ffrwrg(ranges, naxis2, nranges, &nranges2, minrow, maxrow, status);
if (*status > 0 || nranges2 == 0) {
free(maxrow);
free(minrow);
return(*status);
}
/* determine total number or rows to delete */
nrows = 0;
for (ii = 0; ii < nranges2; ii++) {
nrows = nrows + maxrow[ii] - minrow[ii] + 1;
}
rowarray = calloc(nrows, sizeof(long));
if (!rowarray) {
*status = MEMORY_ALLOCATION;
ffpmsg("failed to allocate memory for row array (ffdrrg)");
return(*status);
}
for (kk = 0, ii = 0; ii < nranges2; ii++) {
for (jj = minrow[ii]; jj <= maxrow[ii]; jj++) {
rowarray[kk] = jj;
kk++;
}
}
/* delete the rows */
ffdrws(fptr, rowarray, nrows, status);
free(rowarray);
free(maxrow);
free(minrow);
return(*status);
}
/*--------------------------------------------------------------------------*/
int ffdrws(fitsfile *fptr, /* I - FITS file pointer */
long *rownum, /* I - list of rows to delete (1 = first) */
long nrows, /* I - number of rows to delete */
int *status) /* IO - error status */
/*
delete the list of rows from the table (1 = first row of table).
*/
{
LONGLONG naxis1, naxis2, insertpos, nextrowpos;
long ii, nextrow;
char comm[FLEN_COMMENT];
unsigned char *buffer;
if (*status > 0)
return(*status);
if (fptr->HDUposition != (fptr->Fptr)->curhdu)
ffmahd(fptr, (fptr->HDUposition) + 1, NULL, status);
/* rescan header if data structure is undefined */
if ((fptr->Fptr)->datastart == DATA_UNDEFINED)
if ( ffrdef(fptr, status) > 0)
return(*status);
if ((fptr->Fptr)->hdutype == IMAGE_HDU)
{
ffpmsg("Can only delete rows in TABLE or BINTABLE extension (ffdrws)");
return(*status = NOT_TABLE);
}
if (nrows < 0 )
return(*status = NEG_BYTES);
else if (nrows == 0)
return(*status); /* no op, so just return */
ffgkyjj(fptr, "NAXIS1", &naxis1, comm, status); /* row width */
ffgkyjj(fptr, "NAXIS2", &naxis2, comm, status); /* number of rows */
/* check that input row list is in ascending order */
for (ii = 1; ii < nrows; ii++)
{
if (rownum[ii - 1] >= rownum[ii])
{
ffpmsg("row numbers are not in increasing order (ffdrws)");
return(*status = BAD_ROW_NUM);
}
}
if (rownum[0] < 1)
{
ffpmsg("first row to delete is less than 1 (ffdrws)");
return(*status = BAD_ROW_NUM);
}
else if (rownum[nrows - 1] > naxis2)
{
ffpmsg("last row to delete exceeds size of table (ffdrws)");
return(*status = BAD_ROW_NUM);
}
buffer = (unsigned char *) malloc( (size_t) naxis1); /* buffer for one row */
if (!buffer)
{
ffpmsg("malloc failed (ffdrws)");
return(*status = MEMORY_ALLOCATION);
}
/* byte location to start of first row to delete, and the next row */
insertpos = (fptr->Fptr)->datastart + ((rownum[0] - 1) * naxis1);
nextrowpos = insertpos + naxis1;
nextrow = rownum[0] + 1;
/* work through the list of rows to delete */
for (ii = 1; ii < nrows; nextrow++, nextrowpos += naxis1)
{
if (nextrow < rownum[ii])
{ /* keep this row, so copy it to the new position */
ffmbyt(fptr, nextrowpos, REPORT_EOF, status);
ffgbyt(fptr, naxis1, buffer, status); /* read the bytes */
ffmbyt(fptr, insertpos, IGNORE_EOF, status);
ffpbyt(fptr, naxis1, buffer, status); /* write the bytes */
if (*status > 0)
{
ffpmsg("error while copying good rows in table (ffdrws)");
free(buffer);
return(*status);
}
insertpos += naxis1;
}
else
{ /* skip over this row since it is in the list */
ii++;
}
}
/* finished with all the rows to delete; copy remaining rows */
while(nextrow <= naxis2)
{
ffmbyt(fptr, nextrowpos, REPORT_EOF, status);
ffgbyt(fptr, naxis1, buffer, status); /* read the bytes */
ffmbyt(fptr, insertpos, IGNORE_EOF, status);
ffpbyt(fptr, naxis1, buffer, status); /* write the bytes */
if (*status > 0)
{
ffpmsg("failed to copy remaining rows in table (ffdrws)");
free(buffer);
return(*status);
}
insertpos += naxis1;
nextrowpos += naxis1;
nextrow++;
}
free(buffer);
/* now delete the empty rows at the end of the table */
ffdrow(fptr, naxis2 - nrows + 1, nrows, status);
/* Update the heap data, if any. This will remove any orphaned data */
/* that was only pointed to by the rows that have been deleted */
ffcmph(fptr, status);
return(*status);
}
/*--------------------------------------------------------------------------*/
int ffdrwsll(fitsfile *fptr, /* I - FITS file pointer */
LONGLONG *rownum, /* I - list of rows to delete (1 = first) */
LONGLONG nrows, /* I - number of rows to delete */
int *status) /* IO - error status */
/*
delete the list of rows from the table (1 = first row of table).
*/
{
LONGLONG insertpos, nextrowpos;
LONGLONG naxis1, naxis2, ii, nextrow;
char comm[FLEN_COMMENT];
unsigned char *buffer;
if (*status > 0)
return(*status);
if (fptr->HDUposition != (fptr->Fptr)->curhdu)
ffmahd(fptr, (fptr->HDUposition) + 1, NULL, status);
/* rescan header if data structure is undefined */
if ((fptr->Fptr)->datastart == DATA_UNDEFINED)
if ( ffrdef(fptr, status) > 0)
return(*status);
if ((fptr->Fptr)->hdutype == IMAGE_HDU)
{
ffpmsg("Can only delete rows in TABLE or BINTABLE extension (ffdrws)");
return(*status = NOT_TABLE);
}
if (nrows < 0 )
return(*status = NEG_BYTES);
else if (nrows == 0)
return(*status); /* no op, so just return */
ffgkyjj(fptr, "NAXIS1", &naxis1, comm, status); /* row width */
ffgkyjj(fptr, "NAXIS2", &naxis2, comm, status); /* number of rows */
/* check that input row list is in ascending order */
for (ii = 1; ii < nrows; ii++)
{
if (rownum[ii - 1] >= rownum[ii])
{
ffpmsg("row numbers are not in increasing order (ffdrws)");
return(*status = BAD_ROW_NUM);
}
}
if (rownum[0] < 1)
{
ffpmsg("first row to delete is less than 1 (ffdrws)");
return(*status = BAD_ROW_NUM);
}
else if (rownum[nrows - 1] > naxis2)
{
ffpmsg("last row to delete exceeds size of table (ffdrws)");
return(*status = BAD_ROW_NUM);
}
buffer = (unsigned char *) malloc( (size_t) naxis1); /* buffer for one row */
if (!buffer)
{
ffpmsg("malloc failed (ffdrwsll)");
return(*status = MEMORY_ALLOCATION);
}
/* byte location to start of first row to delete, and the next row */
insertpos = (fptr->Fptr)->datastart + ((rownum[0] - 1) * naxis1);
nextrowpos = insertpos + naxis1;
nextrow = rownum[0] + 1;
/* work through the list of rows to delete */
for (ii = 1; ii < nrows; nextrow++, nextrowpos += naxis1)
{
if (nextrow < rownum[ii])
{ /* keep this row, so copy it to the new position */
ffmbyt(fptr, nextrowpos, REPORT_EOF, status);
ffgbyt(fptr, naxis1, buffer, status); /* read the bytes */
ffmbyt(fptr, insertpos, IGNORE_EOF, status);
ffpbyt(fptr, naxis1, buffer, status); /* write the bytes */
if (*status > 0)
{
ffpmsg("error while copying good rows in table (ffdrws)");
free(buffer);
return(*status);
}
insertpos += naxis1;
}
else
{ /* skip over this row since it is in the list */
ii++;
}
}
/* finished with all the rows to delete; copy remaining rows */
while(nextrow <= naxis2)
{
ffmbyt(fptr, nextrowpos, REPORT_EOF, status);
ffgbyt(fptr, naxis1, buffer, status); /* read the bytes */
ffmbyt(fptr, insertpos, IGNORE_EOF, status);
ffpbyt(fptr, naxis1, buffer, status); /* write the bytes */
if (*status > 0)
{
ffpmsg("failed to copy remaining rows in table (ffdrws)");
free(buffer);
return(*status);
}
insertpos += naxis1;
nextrowpos += naxis1;
nextrow++;
}
free(buffer);
/* now delete the empty rows at the end of the table */
ffdrow(fptr, naxis2 - nrows + 1, nrows, status);
/* Update the heap data, if any. This will remove any orphaned data */
/* that was only pointed to by the rows that have been deleted */
ffcmph(fptr, status);
return(*status);
}
/*--------------------------------------------------------------------------*/
int ffrwrg(
char *rowlist, /* I - list of rows and row ranges */
LONGLONG maxrows, /* I - number of rows in the table */
int maxranges, /* I - max number of ranges to be returned */
int *numranges, /* O - number ranges returned */
long *minrow, /* O - first row in each range */
long *maxrow, /* O - last row in each range */
int *status) /* IO - status value */
{
/*
parse the input list of row ranges, returning the number of ranges,
and the min and max row value in each range.
The only characters allowed in the input rowlist are
decimal digits, minus sign, and comma (and non-significant spaces)
Example:
list = "10-20, 30-35,50"
would return numranges = 3, minrow[] = {10, 30, 50}, maxrow[] = {20, 35, 50}
error is returned if min value of range is > max value of range or if the
ranges are not monotonically increasing.
*/
char *next;
long minval, maxval;
if (*status > 0)
return(*status);
if (maxrows <= 0 ) {
*status = RANGE_PARSE_ERROR;
ffpmsg("Input maximum range value is <= 0 (fits_parse_ranges)");
return(*status);
}
next = rowlist;
*numranges = 0;
while (*next == ' ')next++; /* skip spaces */
while (*next != '\0') {
/* find min value of next range; *next must be '-' or a digit */
if (*next == '-') {
minval = 1; /* implied minrow value = 1 */
} else if ( isdigit((int) *next) ) {
minval = strtol(next, &next, 10);
} else {
*status = RANGE_PARSE_ERROR;
ffpmsg("Syntax error in this row range list:");
ffpmsg(rowlist);
return(*status);
}
while (*next == ' ')next++; /* skip spaces */
/* find max value of next range; *next must be '-', or ',' */
if (*next == '-') {
next++;
while (*next == ' ')next++; /* skip spaces */
if ( isdigit((int) *next) ) {
maxval = strtol(next, &next, 10);
} else if (*next == ',' || *next == '\0') {
maxval = (long) maxrows; /* implied max value */
} else {
*status = RANGE_PARSE_ERROR;
ffpmsg("Syntax error in this row range list:");
ffpmsg(rowlist);
return(*status);
}
} else if (*next == ',' || *next == '\0') {
maxval = minval; /* only a single integer in this range */
} else {
*status = RANGE_PARSE_ERROR;
ffpmsg("Syntax error in this row range list:");
ffpmsg(rowlist);
return(*status);
}
if (*numranges + 1 > maxranges) {
*status = RANGE_PARSE_ERROR;
ffpmsg("Overflowed maximum number of ranges (fits_parse_ranges)");
return(*status);
}
if (minval < 1 ) {
*status = RANGE_PARSE_ERROR;
ffpmsg("Syntax error in this row range list: row number < 1");
ffpmsg(rowlist);
return(*status);
}
if (maxval < minval) {
*status = RANGE_PARSE_ERROR;
ffpmsg("Syntax error in this row range list: min > max");
ffpmsg(rowlist);
return(*status);
}
if (*numranges > 0) {
if (minval <= maxrow[(*numranges) - 1]) {
*status = RANGE_PARSE_ERROR;
ffpmsg("Syntax error in this row range list. Range minimum is");
ffpmsg(" less than or equal to previous range maximum");
ffpmsg(rowlist);
return(*status);
}
}
if (minval <= maxrows) { /* ignore range if greater than maxrows */
if (maxval > maxrows)
maxval = (long) maxrows;
minrow[*numranges] = minval;
maxrow[*numranges] = maxval;
(*numranges)++;
}
while (*next == ' ')next++; /* skip spaces */
if (*next == ',') {
next++;
while (*next == ' ')next++; /* skip more spaces */
}
}
if (*numranges == 0) { /* a null string was entered */
minrow[0] = 1;
maxrow[0] = (long) maxrows;
*numranges = 1;
}
return(*status);
}
/*--------------------------------------------------------------------------*/
int ffrwrgll(
char *rowlist, /* I - list of rows and row ranges */
LONGLONG maxrows, /* I - number of rows in the list */
int maxranges, /* I - max number of ranges to be returned */
int *numranges, /* O - number ranges returned */
LONGLONG *minrow, /* O - first row in each range */
LONGLONG *maxrow, /* O - last row in each range */
int *status) /* IO - status value */
{
/*
parse the input list of row ranges, returning the number of ranges,
and the min and max row value in each range.
The only characters allowed in the input rowlist are
decimal digits, minus sign, and comma (and non-significant spaces)
Example:
list = "10-20, 30-35,50"
would return numranges = 3, minrow[] = {10, 30, 50}, maxrow[] = {20, 35, 50}
error is returned if min value of range is > max value of range or if the
ranges are not monotonically increasing.
*/
char *next;
LONGLONG minval, maxval;
double dvalue;
if (*status > 0)
return(*status);
if (maxrows <= 0 ) {
*status = RANGE_PARSE_ERROR;
ffpmsg("Input maximum range value is <= 0 (fits_parse_ranges)");
return(*status);
}
next = rowlist;
*numranges = 0;
while (*next == ' ')next++; /* skip spaces */
while (*next != '\0') {
/* find min value of next range; *next must be '-' or a digit */
if (*next == '-') {
minval = 1; /* implied minrow value = 1 */
} else if ( isdigit((int) *next) ) {
/* read as a double, because the string to LONGLONG function */
/* is platform dependent (strtoll, strtol, _atoI64) */
dvalue = strtod(next, &next);
minval = (LONGLONG) (dvalue + 0.1);
} else {
*status = RANGE_PARSE_ERROR;
ffpmsg("Syntax error in this row range list:");
ffpmsg(rowlist);
return(*status);
}
while (*next == ' ')next++; /* skip spaces */
/* find max value of next range; *next must be '-', or ',' */
if (*next == '-') {
next++;
while (*next == ' ')next++; /* skip spaces */
if ( isdigit((int) *next) ) {
/* read as a double, because the string to LONGLONG function */
/* is platform dependent (strtoll, strtol, _atoI64) */
dvalue = strtod(next, &next);
maxval = (LONGLONG) (dvalue + 0.1);
} else if (*next == ',' || *next == '\0') {
maxval = maxrows; /* implied max value */
} else {
*status = RANGE_PARSE_ERROR;
ffpmsg("Syntax error in this row range list:");
ffpmsg(rowlist);
return(*status);
}
} else if (*next == ',' || *next == '\0') {
maxval = minval; /* only a single integer in this range */
} else {
*status = RANGE_PARSE_ERROR;
ffpmsg("Syntax error in this row range list:");
ffpmsg(rowlist);
return(*status);
}
if (*numranges + 1 > maxranges) {
*status = RANGE_PARSE_ERROR;
ffpmsg("Overflowed maximum number of ranges (fits_parse_ranges)");
return(*status);
}
if (minval < 1 ) {