Check in the pristine copy of ICU 4.6...

icu46/source/i18n/regextxt.h

+/********************************************************************
+ * COPYRIGHT:
+ * Copyright (c) 2008-2010, International Business Machines Corporation and
+ * others. All Rights Reserved.
+ ********************************************************************/
+//
+//  file:  regextxt.h
+//
+//  This file contains utility code for supporting UText in the regular expression engine.
+//
+//  This class is internal to the regular expression implementation.
+//  For the public Regular Expression API, see the file "unicode/regex.h"
+//
+
+#ifndef _REGEXTXT_H
+#define _REGEXTXT_H
+
+#include "unicode/utypes.h"
+#include "unicode/utext.h"
+
+U_NAMESPACE_BEGIN
+
+#define UTEXT_USES_U16(ut) (NULL==((ut)->pFuncs->mapNativeIndexToUTF16))
+
+#if 0
+#define REGEX_DISABLE_CHUNK_MODE 1
+#endif
+
+#ifdef REGEX_DISABLE_CHUNK_MODE
+#  define UTEXT_FULL_TEXT_IN_CHUNK(ut,len) (FALSE)
+#else
+#  define UTEXT_FULL_TEXT_IN_CHUNK(ut,len) ((0==((ut)->chunkNativeStart))&&((len)==((ut)->chunkNativeLimit))&&((len)==((ut)->nativeIndexingLimit)))
+#endif
+
+struct URegexUTextUnescapeCharContext {
+    UText *text;
+    int32_t lastOffset;
+};
+#define U_REGEX_UTEXT_UNESCAPE_CONTEXT(text) { (text), -1 }
+
+U_CFUNC UChar U_CALLCONV
+uregex_utext_unescape_charAt(int32_t offset, void * /* struct URegexUTextUnescapeCharContext* */ context);
+U_CFUNC UChar U_CALLCONV
+uregex_ucstr_unescape_charAt(int32_t offset, void * /* UChar* */ context);
+
+U_NAMESPACE_END
+
+#endif