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include "filetype.h"
define SZ_KEYWORD 64
define USRERR 1
# KEYPAR -- Transfer header keyword to IRAF parameter
#
# B.Simon 14-Aug-87 First Code
# B.Simon 14-Dec-94 Added error checking
procedure t_keypar()
#--
pointer input # Name of file containing header keyword
pointer keyword # Name of header keyword
bool silent # Don't print warning message
pointer value # IRAF parameter value
bool found
int ftype, keytype, junk
pointer errtxt, sp, hd
string unfilerr "Header file name not found or ambiguous (%s)"
bool clgetb()
int filetype(), errget()
pointer immap(), tbtopn()
begin
# Allocate storage for character strings
call smark (sp)
call salloc (input, SZ_FNAME, TY_CHAR)
call salloc (keyword, SZ_KEYWORD, TY_CHAR)
call salloc (value, SZ_KEYWORD, TY_CHAR)
call salloc (errtxt, SZ_LINE, TY_CHAR)
# Read input parameters
call clgstr ("input", Memc[input], SZ_FNAME)
call clgstr ("keyword", Memc[keyword], SZ_KEYWORD)
silent = clgetb ("silent")
ftype = filetype (Memc[input])
if (ftype == IMAGE_FILE) {
# Read image header keyword and get datatype
found = true
hd = immap (Memc[input], READ_ONLY, NULL)
iferr {
call getimghdr (hd, Memc[keyword], SZ_KEYWORD,
Memc[value], keytype)
} then {
junk = errget (Memc[errtxt], SZ_LINE)
call xer_reset
keytype = TY_CHAR
Memc[value] = EOS
found = false
if (! silent) {
call eprintf ("Warning: %s\n")
call pargstr (Memc[errtxt])
}
}
call imunmap (hd)
} else if (ftype == TABLE_FILE) {
# Read table header keyword and get datatype
found = true
hd = tbtopn (Memc[input], READ_ONLY, NULL)
iferr {
call gettabhdr (hd, Memc[keyword], SZ_KEYWORD,
Memc[value], keytype)
} then {
junk = errget (Memc[errtxt], SZ_LINE)
call xer_reset
keytype = TY_CHAR
Memc[value] = EOS
found = false
if (! silent) {
call eprintf ("Warning: %s\n")
call pargstr (Memc[errtxt])
}
}
call tbtclo (hd)
} else {
call sprintf (Memc[errtxt], SZ_LINE, unfilerr)
call pargstr (Memc[input])
call error (USRERR, Memc[errtxt])
}
# Write output parameters and free string storage
call addslash (Memc[value], SZ_KEYWORD)
call clpstr ("value", Memc[value])
call clputb ("found", found)
call sfree(sp)
return
end
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