ICU-66108.tar.gz

[apple/icu.git] / icuSources / common / utrie.h

diff --git a/icuSources/common/utrie.h b/icuSources/common/utrie.h
index d8d77ac4cbb23e5e1e0c661d1f9ce1c5439f4cc6..532ba778eb6ed143d7c23965ef9fd7a0ba016544 100644 (file)
--- a/icuSources/common/utrie.h
+++ b/icuSources/common/utrie.h
@@ -1,12 +1,14 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
 /*
 ******************************************************************************
 *
-*   Copyright (C) 2001-2006, International Business Machines
+*   Copyright (C) 2001-2011, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 *
 ******************************************************************************
 *   file name:  utrie.h
-*   encoding:   US-ASCII
+*   encoding:   UTF-8
 *   tab size:   8 (not used)
 *   indentation:4
 *
@@ -18,7 +20,7 @@
 #define __UTRIE_H__
 
 #include "unicode/utypes.h"
-#include "udataswp.h"
+#include "unicode/utf16.h"
 
 U_CDECL_BEGIN
 
@@ -168,7 +170,9 @@ struct UTrie {
     UBool isLatin1Linear;
 };
 
+#ifndef __UTRIE2_H__
 typedef struct UTrie UTrie;
+#endif
 
 /** Internal trie getter from an offset (0 if c16 is a BMP/lead units) and a 16-bit unit */
 #define _UTRIE_GET_RAW(trie, data, offset, c16) \
@@ -178,7 +182,7 @@ typedef struct UTrie UTrie;
     ]
 
 /** Internal trie getter from a pair of surrogates */
-#define _UTRIE_GET_FROM_PAIR(trie, data, c, c2, result, resultType) { \
+#define _UTRIE_GET_FROM_PAIR(trie, data, c, c2, result, resultType) UPRV_BLOCK_MACRO_BEGIN { \
     int32_t __offset; \
 \
     /* get data for lead surrogate */ \
@@ -191,37 +195,38 @@ typedef struct UTrie UTrie;
     } else { \
         (result)=(resultType)((trie)->initialValue); \
     } \
-}
+} UPRV_BLOCK_MACRO_END
 
 /** Internal trie getter from a BMP code point, treating a lead surrogate as a normal code point */
 #define _UTRIE_GET_FROM_BMP(trie, data, c16) \
-    _UTRIE_GET_RAW(trie, data, 0xd800<=(c16) && (c16)<=0xdbff ? UTRIE_LEAD_INDEX_DISP : 0, c16);
+    _UTRIE_GET_RAW(trie, data, 0xd800<=(c16) && (c16)<=0xdbff ? UTRIE_LEAD_INDEX_DISP : 0, c16)
 
 /**
  * Internal trie getter from a code point.
  * Could be faster(?) but longer with
  *   if((c32)<=0xd7ff) { (result)=_UTRIE_GET_RAW(trie, data, 0, c32); }
  */
-#define _UTRIE_GET(trie, data, c32, result, resultType) \
+#define _UTRIE_GET(trie, data, c32, result, resultType) UPRV_BLOCK_MACRO_BEGIN { \
     if((uint32_t)(c32)<=0xffff) { \
         /* BMP code points */ \
         (result)=_UTRIE_GET_FROM_BMP(trie, data, c32); \
     } else if((uint32_t)(c32)<=0x10ffff) { \
         /* supplementary code point */ \
-        UChar __lead16=UTF16_LEAD(c32); \
+        UChar __lead16=U16_LEAD(c32); \
         _UTRIE_GET_FROM_PAIR(trie, data, __lead16, c32, result, resultType); \
     } else { \
         /* out of range */ \
         (result)=(resultType)((trie)->initialValue); \
-    }
+    } \
+} UPRV_BLOCK_MACRO_END
 
 /** Internal next-post-increment: get the next code point (c, c2) and its data */
-#define _UTRIE_NEXT(trie, data, src, limit, c, c2, result, resultType) { \
+#define _UTRIE_NEXT(trie, data, src, limit, c, c2, result, resultType) UPRV_BLOCK_MACRO_BEGIN { \
     (c)=*(src)++; \
-    if(!UTF_IS_LEAD(c)) { \
+    if(!U16_IS_LEAD(c)) { \
         (c2)=0; \
         (result)=_UTRIE_GET_RAW((trie), data, 0, (c)); \
-    } else if((src)!=(limit) && UTF_IS_TRAIL((c2)=*(src))) { \
+    } else if((src)!=(limit) && U16_IS_TRAIL((c2)=*(src))) { \
         ++(src); \
         _UTRIE_GET_FROM_PAIR((trie), data, (c), (c2), (result), resultType); \
     } else { \
@@ -229,17 +234,17 @@ typedef struct UTrie UTrie;
         (c2)=0; \
         (result)=_UTRIE_GET_RAW((trie), data, UTRIE_LEAD_INDEX_DISP, (c)); \
     } \
-}
+} UPRV_BLOCK_MACRO_END
 
 /** Internal previous: get the previous code point (c, c2) and its data */
-#define _UTRIE_PREVIOUS(trie, data, start, src, c, c2, result, resultType) { \
+#define _UTRIE_PREVIOUS(trie, data, start, src, c, c2, result, resultType) UPRV_BLOCK_MACRO_BEGIN { \
     (c)=*--(src); \
-    if(!UTF_IS_SURROGATE(c)) { \
+    if(!U16_IS_SURROGATE(c)) { \
         (c2)=0; \
         (result)=_UTRIE_GET_RAW((trie), data, 0, (c)); \
-    } else if(!UTF_IS_SURROGATE_FIRST(c)) { \
+    } else if(!U16_IS_SURROGATE_LEAD(c)) { \
         /* trail surrogate */ \
-        if((start)!=(src) && UTF_IS_LEAD((c2)=*((src)-1))) { \
+        if((start)!=(src) && U16_IS_LEAD((c2)=*((src)-1))) { \
             --(src); \
             (result)=(c); (c)=(c2); (c2)=(UChar)(result); /* swap c, c2 */ \
             _UTRIE_GET_FROM_PAIR((trie), data, (c), (c2), (result), resultType); \
@@ -253,7 +258,7 @@ typedef struct UTrie UTrie;
         (c2)=0; \
         (result)=_UTRIE_GET_RAW((trie), data, UTRIE_LEAD_INDEX_DISP, (c)); \
     } \
-}
+} UPRV_BLOCK_MACRO_END
 
 /* Public UTrie API ---------------------------------------------------------*/
 
@@ -551,7 +556,7 @@ struct UNewTrie {
      * Index values at build-time are 32 bits wide for easier processing.
      * Bit 31 is set if the data block is used by multiple index values (from utrie_setRange()).
      */
-    int32_t index[UTRIE_MAX_INDEX_LENGTH];
+    int32_t index[UTRIE_MAX_INDEX_LENGTH+UTRIE_SURROGATE_BLOCK_COUNT];
     uint32_t *data;
 
     uint32_t leadUnitValue;
@@ -727,17 +732,13 @@ utrie_serialize(UNewTrie *trie, void *data, int32_t capacity,
                 UBool reduceTo16Bits,
                 UErrorCode *pErrorCode);
 
-/**
- * Swap a serialized UTrie.
- * @internal
- */
-U_CAPI int32_t U_EXPORT2
-utrie_swap(const UDataSwapper *ds,
-           const void *inData, int32_t length, void *outData,
-           UErrorCode *pErrorCode);
-
 /* serialization ------------------------------------------------------------ */
 
+// UTrie signature values, in platform endianness and opposite endianness.
+// The UTrie signature ASCII byte values spell "Trie".
+#define UTRIE_SIG       0x54726965
+#define UTRIE_OE_SIG    0x65697254
+
 /**
  * Trie data structure in serialized form:
  *