X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/5dd6771b28c257af405d7248639ed0e3bcdce38b..5fa3d9aa99f952d8ca032f94f9c47b739e2ef7e7:/h/tws.h

diff --git a/h/tws.h b/h/tws.h
index 5d99cf5a..9acda6a6 100644
--- a/h/tws.h
+++ b/h/tws.h
@@ -1,14 +1,11 @@
-
-/*
- * tws.h
+/* tws.h -- time routines.
  */
 
-/* If the following is #defined, a timezone given as a numeric-only offset will
+/* A timezone given as a numeric-only offset will
    be treated specially if it's in a zone that observes Daylight Saving Time.
    For instance, during DST, a Date: like "Mon, 24 Jul 2000 12:31:44 -0700" will
    be printed as "Mon, 24 Jul 2000 12:31:44 PDT".  Without the code activated by
    the following #define, that'd be incorrectly printed as "...MST". */
-#define	ADJUST_NUMERIC_ONLY_TZ_OFFSETS_WRT_DST 1
 
 struct tws {
     int tw_sec;		/* seconds after the minute - [0, 61] */
@@ -27,20 +24,15 @@ struct tws {
 #define	TW_NULL	 0x0000
 
 #define	TW_SDAY	 0x0003	/* how day-of-week was determined */
-#define	TW_SNIL	 0x0000	/*   not given                    */
 #define	TW_SEXP	 0x0001	/*   explicitly given             */
 #define	TW_SIMP	 0x0002	/*   implicitly given             */
 
-#define	TW_SZONE 0x0004	/* how timezone was determined    */
-#define	TW_SZNIL 0x0000	/*   not given                    */
-#define	TW_SZEXP 0x0004	/*   explicitly given             */
+#define	TW_SZEXP 0x0004	/* Explicit timezone. */
 
 #define	TW_DST	 0x0010	/* daylight savings time          */
 #define	TW_ZONE	 0x0020	/* use numeric timezones only     */
 
-#define TW_SUCC  0x0040 /* whether parsing was successful */
-#define TW_YES   0x0040 /*   yes, found                   */
-#define TW_NO    0x0000 /*   no, not found                */
+#define TW_SUCC  0x0040 /* Parsing was successful. */
 
 #define	dtwszone(tw) dtimezone (tw->tw_zone, tw->tw_flags)
 
@@ -59,10 +51,8 @@ struct tws *dlocaltime (time_t *);
 struct tws *dgmtime (time_t *);
 char *dasctime (struct tws *, int);
 char *dtimezone (int, int);
-void twscopy (struct tws *, struct tws *);
 int twsort (struct tws *, struct tws *);
 time_t dmktime (struct tws *);
 void set_dotw (struct tws *);
 
 struct tws *dparsetime (char *);
-