+#define WORD_TYPE_NAMES \
+ T(WORD, ~0) \
+ T(TEXT, 1 << WT_TEXT) \
+ T(EMPH, 1 << WT_EMPH) \
+ T(SMALL, 1 << WT_SMALL) \
+ T(TITLE, 1 << WT_TITLE) \
+ T(HDR, (1 << WT_SMALL_HEADING) | (1 << WT_BIG_HEADING)) \
+ T(HDR1, 1 << WT_SMALL_HEADING) \
+ T(HDR2, 1 << WT_BIG_HEADING) \
+ T(KEYWD, 1 << WT_KEYWORD) \
+ T(META, 1 << WT_META) \
+ T(ALT, 1 << WT_ALT)
+
+/* String types */
+
+enum string_type {
+ ST_RESERVED, /* Reserved string type */
+ ST_URL, /* URL of the document */
+ ST_HOST, /* Host name */
+ ST_DOMAIN, /* Domain name */
+ ST_REF, /* URL reference */
+ ST_BACKREF, /* Back-reference (frame or redirect source) */
+};
+
+#define STRING_TYPE_NAMES \
+ T(URL, 1 << ST_URL) \
+ T(HOST, 1 << ST_HOST) \
+ T(DOMAIN, 1 << ST_DOMAIN) \
+ T(REF, 1 << ST_REF) \
+ T(BACKREF, 1 << ST_BACKREF)
+
+#define STRING_TYPES_URL ((1 << ST_URL) | (1 << ST_REF) | (1 << ST_BACKREF))
+#define STRING_TYPES_CASE_INSENSITIVE ((1 << ST_HOST) | (1 << ST_DOMAIN))
+