X-Git-Url: http://mj.ucw.cz/gitweb/?a=blobdiff_plain;f=lib%2Findex.h;h=97ce26a80f562b68d98f22a30657bb6314b600c7;hb=bc1c222194e31fc25afabef8d02c63206535a262;hp=25d35e627928eb61697f21f77af2c751d66f2eae;hpb=c806248e561584362a7a562f22c20e7013ac3bb1;p=libucw.git

diff --git a/lib/index.h b/lib/index.h
index 25d35e62..97ce26a8 100644
--- a/lib/index.h
+++ b/lib/index.h
@@ -4,6 +4,8 @@
  *	(c) 2001 Martin Mares <mj@ucw.cz>
  */
 
+#define CLAMP(x,min,max) ({ int _t=x; (_t < min) ? min : (_t > max) ? max : _t; })
+
 /* Words */
 
 #define MAX_WORD_LEN		64
@@ -23,6 +25,40 @@ enum word_type {
   WT_ALT				/* Alternate texts for graphical elements */
 };
 
+#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))
+
 /* Index card attributes */
 
 struct card_attr {
@@ -40,10 +76,32 @@ enum card_flag {
   CARD_FLAG_MERGED = 8,			/* Destination of a merge [merger] */
 };
 
+#define CARD_POS_SHIFT 5		/* Card positions are shifted this # of bytes to the right */
+
 /* String fingerprints */
 
 struct fingerprint {
-  u32 hash[3];
+  byte hash[12];
 };
 
 void fingerprint(byte *string, struct fingerprint *fp);
+
+/* Reading of tagged text (Unicode values, tags mapped to 0x80000000 and higher) */
+
+#define GET_TAGGED_CHAR(p,u) do {				\
+  u = *p;							\
+  if (u >= 0xc0)						\
+    GET_UTF8(p,u);						\
+  else if (u >= 0x80)						\
+    {								\
+      p++;							\
+      if (u >= 0xb0)						\
+	u += 0x80020000;					\
+      else if (u >= 0xa0)					\
+	u = 0x80010000 + ((u & 0x0f) << 6) + (*p++ & 0x3f);	\
+      else							\
+	u += 0x80000000;					\
+    }								\
+  else								\
+    p++;							\
+} while (0)