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include <error.h>
include <imhdr.h>
include <imio.h>
include <ctype.h>
define LEN_COMMENT 70 # Maximum comment length
define IDB_RECLEN 80 # Length of FITS record (card)
define COMMENT "COMMENT" # Comment key
define IS_FITS (IS_DIGIT($1)||IS_UPPER($1)||($1=='-')||($1=='_'))
# MKH_HEADER -- Append or substitute new image header from an image or file.
# Only the legal FITS cards (ignoring leading whitespace) will be copied
# from a file.
procedure mkh_header (im, fname, append, verbose)
pointer im # IMIO pointer
char fname[ARB] # Image or data file name
bool append # Append to existing header?
bool verbose # Verbose?
int i, j, curlen, buflen, max_lenuserarea
pointer ua, fd, out
pointer sp, str
int open(), getline(), nowhite(), strlen(), stropen()
pointer immap()
errchk open, stropen
begin
if (nowhite (fname, fname, SZ_FNAME) == 0)
return
# Open the user area string for appending. 'buflen' is the malloc-ed
# buffer length in struct units; IMU is the struct offset to the user
# area, i.e., the size of that part of the image descriptor preceding
# the user area. If the buffer fills we must allow one extra char for
# the EOS delimiter; since storage for the image descriptor was
# allocated in struct units the storage allocator will not have
# allocated space for the extra EOS char.
ua = IM_USERAREA(im)
if (!append)
Memc[ua] = EOS
curlen = strlen (Memc[ua])
buflen = LEN_IMDES + IM_LENHDRMEM(im)
max_lenuserarea = (buflen - IMU) * SZ_STRUCT - 1
# Append from an image header.
ifnoerr (fd = immap (fname, READ_ONLY, 0)) {
iferr {
i = strlen (Memc[IM_USERAREA(fd)]) + strlen (Memc[ua])
call strcat (Memc[IM_USERAREA(fd)], Memc[ua], max_lenuserarea)
if (i > max_lenuserarea)
call error (1, "Possibly failed to add all the keywords")
} then {
call erract (EA_WARN)
# Check for truncated card.
for (i=ua+max_lenuserarea-1; i > ua; i=i-1) {
if (Memc[i] == '\n') {
Memc[i+1] = EOS
break
}
}
}
call imunmap (fd)
# Append from a text file.
} else {
fd = open (fname, READ_ONLY, TEXT_FILE)
out = stropen (Memc[ua+curlen], max_lenuserarea - curlen, APPEND)
call smark (sp)
call salloc (str, SZ_LINE, TY_CHAR)
iferr {
while (getline (fd, Memc[str]) != EOF) {
for (i=str; IS_WHITE(Memc[i]); i=i+1)
;
for (j=i; IS_FITS(Memc[j]); j=j+1)
;
for (; j<i+8 && Memc[j]==' '; j=j+1)
;
if (j<i+8 && (Memc[j] != EOS || Memc[j] != '\n'))
next
if (Memc[j] == '=' && Memc[j+1] != ' ')
next
for (; j<i+IDB_RECLEN && Memc[j] != EOS; j=j+1)
;
if (Memc[j-1] == '\n')
Memc[j-1] = EOS
if (j == i + IDB_RECLEN || Memc[j] == '\n')
Memc[j] = EOS
if (strlen (Memc[ua]) + IDB_RECLEN >= max_lenuserarea)
call error (1,
"Possibly failed to add all the keywords")
call fprintf (out, "%s%*t\n")
call pargstr (Memc[i])
call pargi (IDB_RECLEN+1)
}
} then {
call erract (EA_WARN)
# Check for truncated card.
call close (out)
for (i=ua+max_lenuserarea-1; i > ua; i=i-1) {
if (Memc[i] == '\n') {
Memc[i+1] = EOS
break
}
}
}
call close (out)
call close (fd)
call sfree (sp)
}
if (verbose) {
if (append) {
call printf ("%s: Image header from %s appended\n")
call pargstr (IM_HDRFILE(im))
call pargstr (fname)
} else {
call printf ("%s: Image header from %s substituted\n")
call pargstr (IM_HDRFILE(im))
call pargstr (fname)
}
}
end
# MKH_COMMENT -- Add comment to header.
# Remove any tab characters.
procedure mkh_comment (im, comment)
pointer im # image descriptor
char comment[ARB] # comment
begin
call imputh (im, COMMENT, comment)
end
## MKH_COMMENT -- Add comment to header.
## Remove any tab characters.
#
#define MAX_COMMENT 72
#
#procedure mkh_comment (im, comment)
#
#pointer im # image descriptor
#char comment[ARB] # comment
#
#int i, j, k, stridxs()
#pointer sp, cmmt
#
#begin
# if (stridxs ("\t", comment) == 0) {
# call imputh (im, COMMENT, comment)
# return
# }
#
# call smark (sp)
# call salloc (cmmt, MAX_COMMENT, TY_CHAR)
# j = 0
# for (i=1; comment[i]!=EOS; i=i+1) {
# if (comment[i] == '\t') {
# k = min (j + 8 - mod (j, 8), MAX_COMMENT)
# for (; j < k; j=j+1)
# Memc[cmmt+j] = ' '
# } else {
# Memc[cmmt+j] = comment[i]
# j = j + 1
# }
# if (j == MAX_COMMENT)
# break
# }
# Memc[cmmt+j] = EOS
# call imputh (im, COMMENT, Memc[cmmt])
# call sfree (sp)
#end
# MKH_COMMENT1 -- Make comment out of CL parameter.
procedure mkh_comment1 (im, param, type)
pointer im # image descriptor
char param[ARB] # parameter name
int type # datatype
bool clgetb()
int clgeti()
real clgetr()
double clgetd()
pointer sp, comment, str
begin
call smark (sp)
call salloc (comment, LEN_COMMENT, TY_CHAR)
switch (type) {
case 'b':
call sprintf (Memc[comment], LEN_COMMENT, "%9t%s%24t%b")
call pargstr (param)
call pargb (clgetb (param))
case 'i':
call sprintf (Memc[comment], LEN_COMMENT, "%9t%s%24t%d")
call pargstr (param)
call pargi (clgeti (param))
case 'r':
call sprintf (Memc[comment], LEN_COMMENT, "%9t%s%24t%g")
call pargstr (param)
call pargr (clgetr (param))
case 'd':
call sprintf (Memc[comment], LEN_COMMENT, "%9t%s%24t%g")
call pargstr (param)
call pargd (clgetd (param))
case 's':
call salloc (str, SZ_FNAME, TY_CHAR)
call clgstr (param, Memc[str], SZ_FNAME)
call sprintf (Memc[comment], LEN_COMMENT, "%9t%s%24t%s")
call pargstr (param)
call pargstr (Memc[str])
}
call mkh_comment (im, Memc[comment])
call sfree (sp)
end
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