Moved date/time functions from zotnet/tws to sbr. More importantly,

[mmh] / h / tws.h

diff --git a/h/tws.h b/h/tws.h
new file mode 100644 (file)
index 0000000..83ec880
--- /dev/null
+++ b/h/tws.h
@@ -0,0 +1,66 @@
+
+/*
+ * tws.h
+ *
+ * $Id$
+ */
+
+/* DST vs. GMT nonsense */
+#define        DSTXXX
+
+struct tws {
+    int tw_sec;                /* seconds after the minute - [0, 61] */
+    int tw_min;                /* minutes after the hour - [0, 59]   */
+    int tw_hour;       /* hour since midnight - [0, 23]      */
+    int tw_mday;       /* day of the month - [1, 31]         */
+    int tw_mon;                /* months since January - [0, 11]     */
+    int tw_year;       /* 4 digit year (ie, 1997)            */
+    int tw_wday;       /* days since Sunday - [0, 6]         */
+    int tw_yday;       /* days since January 1 - [0, 365]    */
+    int tw_zone;
+    time_t tw_clock;   /* if != 0, corresponding calendar value */
+    int tw_flags;
+};
+
+#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_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        dtwszone(tw) dtimezone (tw->tw_zone, tw->tw_flags)
+
+extern char *tw_dotw[];
+extern char *tw_ldotw[];
+extern char *tw_moty[];
+
+/*
+ * prototypes
+ */
+char *dtime (time_t *, int);
+char *dtimenow (int);
+char *dctime (struct tws *);
+struct tws *dlocaltimenow (void);
+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 *);
+