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authorJonathan Kew <jfkthame@googlemail.com>2007-11-21 12:29:46 +0000
committerJonathan Kew <jfkthame@googlemail.com>2007-11-21 12:29:46 +0000
commit952d69f85d43b087ce9fa79d3fc6f1c076000bc7 (patch)
treedd6937a6486e80e1638618308481075efab000ae /Build/source/libs/icu-xetex/common/utrie.h
parent888236cb9df7b7d7b5a3e2d784037a9a59511c53 (diff)
updated icu-xetex library for XeTeX 0.997
git-svn-id: svn://tug.org/texlive/trunk@5536 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/icu-xetex/common/utrie.h')
-rw-r--r--Build/source/libs/icu-xetex/common/utrie.h53
1 files changed, 52 insertions, 1 deletions
diff --git a/Build/source/libs/icu-xetex/common/utrie.h b/Build/source/libs/icu-xetex/common/utrie.h
index a23d11a8e43..d8d77ac4cbb 100644
--- a/Build/source/libs/icu-xetex/common/utrie.h
+++ b/Build/source/libs/icu-xetex/common/utrie.h
@@ -1,7 +1,7 @@
/*
******************************************************************************
*
-* Copyright (C) 2001-2005, International Business Machines
+* Copyright (C) 2001-2006, International Business Machines
* Corporation and others. All Rights Reserved.
*
******************************************************************************
@@ -736,6 +736,57 @@ utrie_swap(const UDataSwapper *ds,
const void *inData, int32_t length, void *outData,
UErrorCode *pErrorCode);
+/* serialization ------------------------------------------------------------ */
+
+/**
+ * Trie data structure in serialized form:
+ *
+ * UTrieHeader header;
+ * uint16_t index[header.indexLength];
+ * uint16_t data[header.dataLength];
+ * @internal
+ */
+typedef struct UTrieHeader {
+ /** "Trie" in big-endian US-ASCII (0x54726965) */
+ uint32_t signature;
+
+ /**
+ * options bit field:
+ * 9 1=Latin-1 data is stored linearly at data+UTRIE_DATA_BLOCK_LENGTH
+ * 8 0=16-bit data, 1=32-bit data
+ * 7..4 UTRIE_INDEX_SHIFT // 0..UTRIE_SHIFT
+ * 3..0 UTRIE_SHIFT // 1..9
+ */
+ uint32_t options;
+
+ /** indexLength is a multiple of UTRIE_SURROGATE_BLOCK_COUNT */
+ int32_t indexLength;
+
+ /** dataLength>=UTRIE_DATA_BLOCK_LENGTH */
+ int32_t dataLength;
+} UTrieHeader;
+
+/**
+ * Constants for use with UTrieHeader.options.
+ * @internal
+ */
+enum {
+ /** Mask to get the UTRIE_SHIFT value from options. */
+ UTRIE_OPTIONS_SHIFT_MASK=0xf,
+
+ /** Shift options right this much to get the UTRIE_INDEX_SHIFT value. */
+ UTRIE_OPTIONS_INDEX_SHIFT=4,
+
+ /** If set, then the data (stage 2) array is 32 bits wide. */
+ UTRIE_OPTIONS_DATA_IS_32_BIT=0x100,
+
+ /**
+ * If set, then Latin-1 data (for U+0000..U+00ff) is stored in the data (stage 2) array
+ * as a simple, linear array at data+UTRIE_DATA_BLOCK_LENGTH.
+ */
+ UTRIE_OPTIONS_LATIN1_IS_LINEAR=0x200
+};
+
U_CDECL_END
#endif