1 files changed, 85 insertions, 0 deletions
diff --git a/pkg/utilities/nttools/lib/tbfile.x b/pkg/utilities/nttools/lib/tbfile.x
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+++ b/pkg/utilities/nttools/lib/tbfile.x
@@ -0,0 +1,85 @@
+include <ctype.h>		# for IS_ALNUM
+
+# tbfile -- get table and file name
+# This routine takes a table name as specified by a user and returns
+# the full table name, the full file name, and the filename extension
+# (including the dot; e.g. ".tab").  The filename extension may be the
+# null string if the file is a text table.  The file name will be a
+# subset of the table name, as the table name may include a bracketed
+# expression giving EXTNAME or HDU number or table name in CDF file.
+#
+# Phil Hodge, 27-Jun-1995  Subroutine created.
+# Phil Hodge, 29-Sep-1997  No longer necessary to enclose extname expression
+#			in brackets, as the brackets are now included.
+# Phil hodge, 16-Apr-1999  Remove ttype from calling sequence of tbparse.
+
+procedure tbfile (input, tabname, filename, extn, maxch)
+
+char	input[ARB]	# i: input table name
+char	tabname[maxch]	# o: full table name
+char	filename[maxch]	# o: name of file containing table
+char	extn[maxch]	# o: filename extension, including '.'
+int	maxch		# i: size of strings
+#--
+pointer sp
+pointer fname		# full file name
+pointer brackets	# for CDF or HDU name or number, and/or selectors
+int	hdu		# returned by tbparse and ignored
+int	dotloc		# location of last '.' in file name
+int	i
+int	strlen(), access()
+int	tbparse()
+bool	strne()
+errchk	tbparse, tbtext
+
+begin
+	call smark (sp)
+	call salloc (fname, SZ_LINE, TY_CHAR)
+	call salloc (brackets, SZ_LINE, TY_CHAR)
+
+	# Separate filename from any bracketed expression (such as
+	# EXTNAME or HDU number) that may be present.
+	if (tbparse (input, Memc[fname], Memc[brackets], SZ_LINE, hdu) < 1) {
+	    tabname[1] = EOS
+	    filename[1] = EOS
+	    extn[1] = EOS
+	    call sfree (sp)
+	    return
+	}
+
+	# Append default extension (if appropriate) to get full file name.
+	# A text table need not have an extension, so first check whether
+	# a file of the given name exists.  If not, then append extension.
+	if (access (Memc[fname], 0, 0) == NO &&
+		strne (input, "STDIN") && strne (input, "STDOUT"))
+	    call tbtext (Memc[fname], Memc[fname], SZ_LINE)
+
+	# At this point we have the full file name; copy it to output.
+	call strcpy (Memc[fname], filename, maxch)
+
+	# Append bracketed expression (if present) to get full table name,
+	# and copy it to output.
+	call strcpy (Memc[fname], tabname, maxch)
+	if (Memc[brackets] != EOS)
+	    call strcat (Memc[brackets], tabname, maxch)
+
+	# Search for a filename extension.  Look for a dot that is not
+	# followed by any special character.
+	dotloc = 0				# initial value
+	do i = strlen (Memc[fname]), 1, -1 {
+	    if (Memc[fname+i-1] == '.') {	# found it
+		dotloc = i
+		break
+	    }
+	    if (!IS_ALNUM(Memc[fname+i-1]))	# stop at first special char
+		break
+	}
+
+	# If the file name includes an extension, copy it to output.
+	if (dotloc > 0)
+	    call strcpy (Memc[fname+dotloc-1], extn, maxch)
+	else
+	    extn[1] = EOS
+
+	call sfree (sp)
+end