1 files changed, 35 insertions, 0 deletions
diff --git a/pkg/tbtables/tbhisc.x b/pkg/tbtables/tbhisc.x
new file mode 100644
index 00000000..7e6baee1
--- /dev/null
+++ b/pkg/tbtables/tbhisc.x
@@ -0,0 +1,35 @@
+include <ctype.h>
+include <tbset.h>
+
+# tbhisc -- is the keyword a comment?
+# If the input keyword is blank or is "history" or "comment" then this
+# procedure returns true.  Actual blanks and tabs are both considered
+# to be blank, and the search for non-blank characters ends with EOS
+# or with the end of the keyword.
+
+bool procedure tbhisc (keyword)
+
+char	keyword[ARB]		# Name of parameter
+
+char	uckey[SZ_KEYWORD]	# keyword converted to upper case
+int	k			# loop index
+bool	streq()
+
+begin
+	call strcpy (keyword, uckey, SZ_KEYWORD)
+	call strupr (uckey)
+
+	if (streq (uckey, "HISTORY"))
+	    return (true)
+	else if (streq (uckey, "COMMENT"))
+	    return (true)
+	else {
+	    do k = 1, SZ_KEYWORD {
+		if (uckey[k] == EOS)
+		    return (true)
+		else if (!IS_WHITE(uckey[k]))
+		    return (false)
+	    }
+	    return (true)
+	}
+end