1 files changed, 101 insertions, 0 deletions
diff --git a/sys/imio/db/idbpstr.x b/sys/imio/db/idbpstr.x
new file mode 100644
index 00000000..e2facd75
--- /dev/null
+++ b/sys/imio/db/idbpstr.x
@@ -0,0 +1,101 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<syserr.h>
+include	<mach.h>
+include	<ctype.h>
+include	<imhdr.h>
+include	"idb.h"
+
+# IDB_PUTSTRING -- Set the value of a standard header parameter given the new
+# value of the parameter encoded as a string.  If actual type of the parameter
+# is non string the value must be decoded.  ERR is returned if the key is not
+# a standard header parameter.  An error action is taken if the key is known
+# but the value cannot be decoded.
+
+int procedure idb_putstring (im, key, strval)
+
+pointer	im			# image descriptor
+char	key[ARB]		# parameter to be returned
+char	strval[ARB]		# string value of parameter
+
+double	dval
+bool	numeric
+int	ip, axis
+int	strncmp(), gstrcpy(), idb_kwlookup(), ctod(), strlen()
+
+begin
+	# Determine if the given string value is numeric.  This is true if
+	# it consists of a single numeric token of a reasonable length.
+
+	ip = 1
+	numeric = false
+	if (strlen (strval) < MAX_DIGITS)
+	    if (ctod (strval, ip, dval) > 0) {
+		while (IS_WHITE (strval[ip]) || strval[ip] == '\n')
+		    ip = ip + 1
+		numeric = (strval[ip] == EOS)
+	    }
+
+	# A standard keyword is recognized with or without the "i_" prefix.
+	if (key[1] == 'i' && key[2] == '_')
+	    ip = 3
+	else
+	    ip = 1
+
+	# The keywords "naxis1", "naxis2", etc. are treated as a special case.
+	if (strncmp (key[ip], "naxis", 5) == 0)
+	    if (IS_DIGIT(key[ip+5]) && key[ip+6] == EOS) {
+		axis = TO_INTEG(key[ip+5])
+		if (numeric && axis >= 1 && axis <= IM_NDIM(im)) {
+		    IM_LEN(im,axis) = nint(dval)
+		    return (OK)
+		} else
+		    call syserrs (SYS_IDBTYPE, key)
+	    }
+	    
+	# Lookup the keyword in the dictionary and set the value of the
+	# header parameter.  If the parameter is string valued copy the
+	# string value and return immediately.
+
+	switch (idb_kwlookup (key[ip])) {
+	case I_CTIME:
+	    if (numeric)
+		IM_CTIME(im) = nint(dval)
+	case I_HISTORY:
+	    return (gstrcpy (strval, IM_HISTORY(im), SZ_IMHIST))
+	case I_LIMTIME:
+	    if (numeric)
+		IM_LIMTIME(im) = nint(dval)
+	case I_MAXPIXVAL:
+	    if (numeric)
+		IM_MAX(im) = dval
+	case I_MINPIXVAL:
+	    if (numeric)
+		IM_MIN(im) = dval
+	case I_MTIME:
+	    if (numeric)
+		IM_MTIME(im) = nint(dval)
+	case I_NAXIS:
+	    if (numeric)
+		IM_NDIM(im) = nint(dval)
+	case I_PIXFILE:
+	    return (gstrcpy (strval, IM_PIXFILE(im), SZ_IMPIXFILE))
+	case I_PIXTYPE:
+	    if (numeric)
+		IM_PIXTYPE(im) = nint(dval)
+	case I_TITLE:
+	    return (gstrcpy (strval, IM_TITLE(im), SZ_IMTITLE))
+	default:
+	    return (ERR)
+	}
+
+	# If we make it through the switch, i.e., do not execute a return
+	# statement, then the key was recognized and is of a numeric datatype.
+	# If the value was successfully decoded as numeric then all is well,
+	# else the value could not be decoded and we have an error.
+
+	if (!numeric)
+	    call syserrs (SYS_IDBTYPE, key)
+	else
+	    return (OK)
+end