-enum word_type {
- WT_RESERVED, /* Reserved word type */
- WT_TEXT, /* Ordinary text */
- WT_EMPH, /* Emphasized text */
- WT_SMALL, /* Small font */
- WT_TITLE, /* Document title */
- WT_SMALL_HEADING, /* Heading */
- WT_BIG_HEADING, /* Larger heading */
- WT_KEYWORD, /* Explicitly marked keyword */
- WT_META, /* Various meta-information */
- WT_ALT /* Alternate texts for graphical elements */
+/*
+ * Words
+ *
+ * MAX_WORD_LEN is the maximum length (measured in UTF-8 characters, excluding
+ * the terminating zero byte if there's any) of any word which may appear in the
+ * indices or in the bucket file. Naturally, the same constant also bounds
+ * the number of UCS-2 characters in a word.
+ *
+ * Caveat: If you are upcasing/downcasing the word, the UTF-8 encoding can
+ * expand, although at most twice, so you need to reserve 2*MAX_WORD_LEN bytes.
+ */
+
+#define MAX_WORD_LEN 64 /* a multiple of 4 */
+
+/* Word and string types are defined in lib/custom.h */
+
+/* Types used for storing contexts */
+
+#ifdef CONFIG_CONTEXTS
+#if CONFIG_MAX_CONTEXTS == 32768
+typedef u16 context_t;
+#define bget_context bgetw
+#define bput_context bputw
+#define GET_CONTEXT GET_U16
+#define PUT_CONTEXT PUT_U16
+#elif CONFIG_MAX_CONTEXTS == 256
+typedef byte context_t;
+#define bget_context bgetc
+#define bput_context bputc
+#define GET_CONTEXT GET_U8
+#define PUT_CONTEXT PUT_U8
+#else
+#error CONFIG_MAX_CONTEXTS set to an invalid value.
+#endif
+#else
+struct fastbuf;
+typedef struct { } context_t;
+static inline uns bget_context(struct fastbuf *b UNUSED) { return 0; }
+static inline void bput_context(struct fastbuf *b UNUSED, uns context UNUSED) { }
+#define GET_CONTEXT(p) 0
+#define PUT_CONTEXT(p,x) do {} while(0)
+#endif
+
+/* Index card attributes */
+
+struct card_attr {
+ u32 card; /* Reference to card description (either oid or filepos) */
+#ifdef CONFIG_SITES
+ u32 site_id;
+#endif
+ CUSTOM_CARD_ATTRS /* Include all custom attributes */
+ byte weight;
+ byte flags;
+#ifdef CONFIG_LASTMOD
+ byte age; /* Document age in pseudo-logarithmic units wrt. reference time */
+#endif
+#ifdef CONFIG_FILETYPE
+ byte type_flags; /* File type flags (see below) */
+#endif
+};
+
+enum card_flag {
+ CARD_FLAG_EMPTY = 1, /* Empty document (redirect, robot file etc.) [scanner] */
+ CARD_FLAG_ACCENTED = 2, /* Document contains accented characters [scanner] */
+ CARD_FLAG_DUP = 4, /* Removed as a duplicate [merger] */
+ CARD_FLAG_MERGED = 8, /* Destination of a merge [merger] */
+ CARD_FLAG_IMAGE = 16, /* Is an image object [scanner] */
+ CARD_FLAG_FRAMESET = 32, /* Contains a frameset to be ignored [scanner] */
+};
+
+#define CARD_POS_SHIFT 5 /* Card positions are shifted this # of bits to the right */
+
+/*
+ * We store document type and several other properties in card_attr->type_flags.
+ * Here we define only the basic structure, the details are defined in custom.h
+ * (the list of type names custom_file_type_names[] and also setting of the file
+ * types in custom_create_attrs()).
+ *
+ * bits 7--5 file type: (0-3: text types, 4-7: other types, defined by custom.h)
+ * bits 4--0 type-dependent information, for text types it's document language code
+ */
+
+#ifdef CONFIG_FILETYPE
+#define CA_GET_FILE_TYPE(a) ((a)->type_flags >> 5)
+#define CA_GET_FILE_INFO(a) ((a)->type_flags & 0x1f)
+#define CA_GET_FILE_LANG(a) ((a)->type_flags & 0x80 ? 0 : CA_GET_FILE_INFO(a))
+#define FILETYPE_ATTRS SMALL_SET_ATTR(ftype, FILETYPE, CA_GET_FILE_TYPE, ext_ft_parse)
+#define MAX_FILE_TYPES 8
+byte *ext_ft_parse(u32 *dest, byte *value, uns intval);
+extern byte *custom_file_type_names[MAX_FILE_TYPES];
+#else
+#define FILETYPE_ATTRS
+#endif
+
+#ifdef CONFIG_LANG
+/* You can use language matching without CONFIG_FILETYPE, but you have to define CA_GET_FILE_LANG yourself. */
+#define LANG_ATTRS SMALL_SET_ATTR(lang, LANG, CA_GET_FILE_LANG, ext_lang_parse)
+byte *ext_lang_parse(u32 *dest, byte *value, uns intval);
+#else
+#define LANG_ATTRS
+#endif
+
+#define EXTENDED_ATTRS CUSTOM_ATTRS LANG_ATTRS /* Beware, FILETYPE_ATTRS are handled separately */
+
+/* String fingerprints */
+
+struct fingerprint {
+ byte hash[12];