ad42df258f
X-SVN-Rev: 15879
1166 lines
42 KiB
C
1166 lines
42 KiB
C
/*
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*******************************************************************************
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*
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* Copyright (C) 2002-2004, International Business Machines
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* Corporation and others. All Rights Reserved.
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*
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*******************************************************************************
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* file name: utf.h
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* encoding: US-ASCII
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* tab size: 8 (not used)
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* indentation:4
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*
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* created on: 2002sep21
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* created by: Markus W. Scherer
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*/
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/**
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* \file
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* The macros in utf_old.h are all deprecated and their use discouraged.
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* Some of the design principles behind the set of UTF macros
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* have changed or proved impractical.
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* Almost all of the old "UTF macros" are at least renamed.
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* If you are looking for a new equivalent to an old macro, please see the
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* comment at the old one.
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*
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* utf_old.h is included by utf.h after unicode/umachine.h
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* and some common definitions, to not break old code.
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*
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* Brief summary of reasons for deprecation:
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* - Switch on UTF_SIZE (selection of UTF-8/16/32 default string processing)
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* was impractical.
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* - Switch on UTF_SAFE etc. (selection of unsafe/safe/strict default string processing)
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* was of little use and impractical.
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* - Whole classes of macros became obsolete outside of the UTF_SIZE/UTF_SAFE
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* selection framework: UTF32_ macros (all trivial)
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* and UTF_ default and intermediate macros (all aliases).
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* - The selection framework also caused many macro aliases.
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* - Change in Unicode standard: "irregular" sequences (3.0) became illegal (3.2).
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* - Change of language in Unicode standard:
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* Growing distinction between internal x-bit Unicode strings and external UTF-x
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* forms, with the former more lenient.
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* Suggests renaming of UTF16_ macros to U16_.
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* - The prefix "UTF_" without a width number confused some users.
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* - "Safe" append macros needed the addition of an error indicator output.
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* - "Safe" UTF-8 macros used legitimate (if rarely used) code point values
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* to indicate error conditions.
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* - The use of the "_CHAR" infix for code point operations confused some users.
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*
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* More details:
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*
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* Until ICU 2.2, utf.h theoretically allowed to choose among UTF-8/16/32
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* for string processing, and among unsafe/safe/strict default macros for that.
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*
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* It proved nearly impossible to write non-trivial, high-performance code
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* that is UTF-generic.
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* Unsafe default macros would be dangerous for default string processing,
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* and the main reason for the "strict" versions disappeared:
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* Between Unicode 3.0 and 3.2 all "irregular" UTF-8 sequences became illegal.
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* The only other conditions that "strict" checked for were non-characters,
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* which are valid during processing. Only during text input/output should they
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* be checked, and at that time other well-formedness checks may be
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* necessary or useful as well.
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* This can still be done by using U16_NEXT and U_IS_UNICODE_NONCHAR
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* or U_IS_UNICODE_CHAR.
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*
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* The old UTF8_..._SAFE macros also used some normal Unicode code points
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* to indicate malformed sequences.
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* The new UTF8_ macros without suffix use negative values instead.
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*
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* The entire contents of utf32.h was moved here without replacement
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* because all those macros were trivial and
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* were meaningful only in the framework of choosing the UTF size.
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*
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* See Jitterbug 2150 and its discussion on the ICU mailing list
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* in September 2002.
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*
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* <hr>
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*
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* <em>Obsolete part</em> of pre-ICU 2.4 utf.h file documentation:
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*
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* <p>The original concept for these files was for ICU to allow
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* in principle to set which UTF (UTF-8/16/32) is used internally
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* by defining UTF_SIZE to either 8, 16, or 32. utf.h would then define the UChar type
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* accordingly. UTF-16 was the default.</p>
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*
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* <p>This concept has been abandoned.
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* A lot of the ICU source code — especially low-level code like
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* conversion, normalization, and collation — assumes UTF-16,
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* utf.h enforces the default of UTF-16.
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* The UTF-8 and UTF-32 macros remain for now for completeness and backward compatibility.</p>
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*
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* <p>Accordingly, utf.h defines UChar to be an unsigned 16-bit integer. If this matches wchar_t, then
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* UChar is defined to be exactly wchar_t, otherwise uint16_t.</p>
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*
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* <p>UChar32 is defined to be a signed 32-bit integer (int32_t), large enough for a 21-bit
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* Unicode code point (Unicode scalar value, 0..0x10ffff).
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* Before ICU 2.4, the definition of UChar32 was similarly platform-dependent as
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* the definition of UChar. For details see the documentation for UChar32 itself.</p>
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*
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* <p>utf.h also defines a number of C macros for handling single Unicode code points and
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* for using UTF Unicode strings. It includes utf8.h, utf16.h, and utf32.h for the actual
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* implementations of those macros and then aliases one set of them (for UTF-16) for general use.
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* The UTF-specific macros have the UTF size in the macro name prefixes (UTF16_...), while
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* the general alias macros always begin with UTF_...</p>
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*
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* <p>Many string operations can be done with or without error checking.
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* Where such a distinction is useful, there are two versions of the macros, "unsafe" and "safe"
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* ones with ..._UNSAFE and ..._SAFE suffixes. The unsafe macros are fast but may cause
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* program failures if the strings are not well-formed. The safe macros have an additional, boolean
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* parameter "strict". If strict is FALSE, then only illegal sequences are detected.
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* Otherwise, irregular sequences and non-characters are detected as well (like single surrogates).
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* Safe macros return special error code points for illegal/irregular sequences:
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* Typically, U+ffff, or values that would result in a code unit sequence of the same length
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* as the erroneous input sequence.<br>
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* Note that _UNSAFE macros have fewer parameters: They do not have the strictness parameter, and
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* they do not have start/length parameters for boundary checking.</p>
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*
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* <p>Here, the macros are aliased in two steps:
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* In the first step, the UTF-specific macros with UTF16_ prefix and _UNSAFE and _SAFE suffixes are
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* aliased according to the UTF_SIZE to macros with UTF_ prefix and the same suffixes and signatures.
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* Then, in a second step, the default, general alias macros are set to use either the unsafe or
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* the safe/not strict (default) or the safe/strict macro;
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* these general macros do not have a strictness parameter.</p>
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*
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* <p>It is possible to change the default choice for the general alias macros to be unsafe, safe/not strict or safe/strict.
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* The default is safe/not strict. It is not recommended to select the unsafe macros as the basis for
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* Unicode string handling in ICU! To select this, define UTF_SAFE, UTF_STRICT, or UTF_UNSAFE.</p>
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*
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* <p>For general use, one should use the default, general macros with UTF_ prefix and no _SAFE/_UNSAFE suffix.
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* Only in some cases it may be necessary to control the choice of macro directly and use a less generic alias.
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* For example, if it can be assumed that a string is well-formed and the index will stay within the bounds,
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* then the _UNSAFE version may be used.
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* If a UTF-8 string is to be processed, then the macros with UTF8_ prefixes need to be used.</p>
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*
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* <hr>
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*
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* @deprecated ICU 2.4. Use the macros in utf.h, utf16.h, utf8.h instead.
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*/
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#ifndef U_HIDE_DEPRECATED_API
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/* utf.h must be included first. */
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#ifndef __UTF_H__
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# include "unicode/utf.h"
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#endif
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#ifndef __UTF_OLD_H__
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#define __UTF_OLD_H__
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/* Formerly utf.h, part 1 --------------------------------------------------- */
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#ifdef U_USE_UTF_DEPRECATES
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/**
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* Unicode string and array offset and index type.
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* ICU always counts Unicode code units (UChars) for
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* string offsets, indexes, and lengths, not Unicode code points.
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*
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* @obsolete ICU 2.6. Use int32_t directly instead since this API will be removed in that release.
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*/
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typedef int32_t UTextOffset;
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#endif
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/** Number of bits in a Unicode string code unit - ICU uses 16-bit Unicode. @deprecated ICU 2.4. Obsolete, see utf_old.h. */
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#define UTF_SIZE 16
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/**
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* The default choice for general Unicode string macros is to use the ..._SAFE macro implementations
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* with strict=FALSE.
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*
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* @deprecated ICU 2.4. Obsolete, see utf_old.h.
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*/
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#define UTF_SAFE
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/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
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#undef UTF_UNSAFE
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/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
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#undef UTF_STRICT
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/**
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* <p>UTF8_ERROR_VALUE_1 and UTF8_ERROR_VALUE_2 are special error values for UTF-8,
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* which need 1 or 2 bytes in UTF-8:<br>
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* U+0015 = NAK = Negative Acknowledge, C0 control character<br>
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* U+009f = highest C1 control character</p>
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*
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* <p>These are used by UTF8_..._SAFE macros so that they can return an error value
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* that needs the same number of code units (bytes) as were seen by
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* a macro. They should be tested with UTF_IS_ERROR() or UTF_IS_VALID().</p>
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*
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* @deprecated ICU 2.4. Obsolete, see utf_old.h.
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*/
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#define UTF8_ERROR_VALUE_1 0x15
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/**
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* See documentation on UTF8_ERROR_VALUE_1 for details.
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*
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* @deprecated ICU 2.4. Obsolete, see utf_old.h.
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*/
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#define UTF8_ERROR_VALUE_2 0x9f
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/**
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* Error value for all UTFs. This code point value will be set by macros with error
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* checking if an error is detected.
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*
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* @deprecated ICU 2.4. Obsolete, see utf_old.h.
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*/
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#define UTF_ERROR_VALUE 0xffff
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/**
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* Is a given 32-bit code an error value
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* as returned by one of the macros for any UTF?
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*
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* @deprecated ICU 2.4. Obsolete, see utf_old.h.
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*/
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#define UTF_IS_ERROR(c) \
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(((c)&0xfffe)==0xfffe || (c)==UTF8_ERROR_VALUE_1 || (c)==UTF8_ERROR_VALUE_2)
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/**
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* This is a combined macro: Is c a valid Unicode value _and_ not an error code?
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*
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* @deprecated ICU 2.4. Obsolete, see utf_old.h.
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*/
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#define UTF_IS_VALID(c) \
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(UTF_IS_UNICODE_CHAR(c) && \
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(c)!=UTF8_ERROR_VALUE_1 && (c)!=UTF8_ERROR_VALUE_2)
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/**
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* Is this code unit or code point a surrogate (U+d800..U+dfff)?
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* @deprecated ICU 2.4. Renamed to U_IS_SURROGATE and U16_IS_SURROGATE, see utf_old.h.
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*/
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#define UTF_IS_SURROGATE(uchar) (((uchar)&0xfffff800)==0xd800)
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/**
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* Is a given 32-bit code point a Unicode noncharacter?
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*
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* @deprecated ICU 2.4. Renamed to U_IS_UNICODE_NONCHAR, see utf_old.h.
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*/
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#define UTF_IS_UNICODE_NONCHAR(c) \
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((c)>=0xfdd0 && \
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((uint32_t)(c)<=0xfdef || ((c)&0xfffe)==0xfffe) && \
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(uint32_t)(c)<=0x10ffff)
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/**
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* Is a given 32-bit value a Unicode code point value (0..U+10ffff)
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* that can be assigned a character?
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*
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* Code points that are not characters include:
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* - single surrogate code points (U+d800..U+dfff, 2048 code points)
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* - the last two code points on each plane (U+__fffe and U+__ffff, 34 code points)
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* - U+fdd0..U+fdef (new with Unicode 3.1, 32 code points)
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* - the highest Unicode code point value is U+10ffff
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*
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* This means that all code points below U+d800 are character code points,
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* and that boundary is tested first for performance.
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*
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* @deprecated ICU 2.4. Renamed to U_IS_UNICODE_CHAR, see utf_old.h.
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*/
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#define UTF_IS_UNICODE_CHAR(c) \
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((uint32_t)(c)<0xd800 || \
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((uint32_t)(c)>0xdfff && \
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(uint32_t)(c)<=0x10ffff && \
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!UTF_IS_UNICODE_NONCHAR(c)))
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/* Formerly utf8.h ---------------------------------------------------------- */
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/**
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* Count the trail bytes for a UTF-8 lead byte.
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* @deprecated ICU 2.4. Renamed to U8_COUNT_TRAIL_BYTES, see utf_old.h.
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*/
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#define UTF8_COUNT_TRAIL_BYTES(leadByte) (utf8_countTrailBytes[(uint8_t)leadByte])
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/**
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* Mask a UTF-8 lead byte, leave only the lower bits that form part of the code point value.
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* @deprecated ICU 2.4. Renamed to U8_MASK_LEAD_BYTE, see utf_old.h.
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*/
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#define UTF8_MASK_LEAD_BYTE(leadByte, countTrailBytes) ((leadByte)&=(1<<(6-(countTrailBytes)))-1)
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/** Is this this code point a single code unit (byte)? @deprecated ICU 2.4. Renamed to U8_IS_SINGLE, see utf_old.h. */
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#define UTF8_IS_SINGLE(uchar) (((uchar)&0x80)==0)
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/** Is this this code unit the lead code unit (byte) of a code point? @deprecated ICU 2.4. Renamed to U8_IS_LEAD, see utf_old.h. */
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#define UTF8_IS_LEAD(uchar) ((uint8_t)((uchar)-0xc0)<0x3e)
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/** Is this this code unit a trailing code unit (byte) of a code point? @deprecated ICU 2.4. Renamed to U8_IS_TRAIL, see utf_old.h. */
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#define UTF8_IS_TRAIL(uchar) (((uchar)&0xc0)==0x80)
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/** Does this scalar Unicode value need multiple code units for storage? @deprecated ICU 2.4. Use U8_LENGTH or test ((uint32_t)(c)>0x7f) instead, see utf_old.h. */
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#define UTF8_NEED_MULTIPLE_UCHAR(c) ((uint32_t)(c)>0x7f)
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/**
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* Given the lead character, how many bytes are taken by this code point.
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* ICU does not deal with code points >0x10ffff
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* unless necessary for advancing in the byte stream.
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*
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* These length macros take into account that for values >0x10ffff
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* the UTF8_APPEND_CHAR_SAFE macros would write the error code point 0xffff
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* with 3 bytes.
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* Code point comparisons need to be in uint32_t because UChar32
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* may be a signed type, and negative values must be recognized.
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*
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* @deprecated ICU 2.4. Use U8_LENGTH instead, see utf_old.h.
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*/
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#if 1
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# define UTF8_CHAR_LENGTH(c) \
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((uint32_t)(c)<=0x7f ? 1 : \
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((uint32_t)(c)<=0x7ff ? 2 : \
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((uint32_t)((c)-0x10000)>0xfffff ? 3 : 4) \
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) \
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)
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#else
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# define UTF8_CHAR_LENGTH(c) \
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((uint32_t)(c)<=0x7f ? 1 : \
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((uint32_t)(c)<=0x7ff ? 2 : \
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((uint32_t)(c)<=0xffff ? 3 : \
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((uint32_t)(c)<=0x10ffff ? 4 : \
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((uint32_t)(c)<=0x3ffffff ? 5 : \
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((uint32_t)(c)<=0x7fffffff ? 6 : 3) \
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) \
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) \
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) \
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) \
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)
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#endif
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/** The maximum number of bytes per code point. @deprecated ICU 2.4. Renamed to U8_MAX_LENGTH, see utf_old.h. */
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#define UTF8_MAX_CHAR_LENGTH 4
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/** Average number of code units compared to UTF-16. @deprecated ICU 2.4. Obsolete, see utf_old.h. */
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#define UTF8_ARRAY_SIZE(size) ((5*(size))/2)
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/** @deprecated ICU 2.4. Renamed to U8_GET_UNSAFE, see utf_old.h. */
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#define UTF8_GET_CHAR_UNSAFE(s, i, c) { \
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int32_t __I=(int32_t)(i); \
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UTF8_SET_CHAR_START_UNSAFE(s, __I); \
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UTF8_NEXT_CHAR_UNSAFE(s, __I, c); \
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}
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/** @deprecated ICU 2.4. Use U8_GET instead, see utf_old.h. */
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#define UTF8_GET_CHAR_SAFE(s, start, i, length, c, strict) { \
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int32_t __I=(int32_t)(i); \
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UTF8_SET_CHAR_START_SAFE(s, start, __I); \
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UTF8_NEXT_CHAR_SAFE(s, __I, length, c, strict); \
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}
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/** @deprecated ICU 2.4. Renamed to U8_NEXT_UNSAFE, see utf_old.h. */
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#define UTF8_NEXT_CHAR_UNSAFE(s, i, c) { \
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(c)=(s)[(i)++]; \
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if((uint8_t)((c)-0xc0)<0x35) { \
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uint8_t __count=UTF8_COUNT_TRAIL_BYTES(c); \
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UTF8_MASK_LEAD_BYTE(c, __count); \
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switch(__count) { \
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/* each following branch falls through to the next one */ \
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case 3: \
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(c)=((c)<<6)|((s)[(i)++]&0x3f); \
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case 2: \
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(c)=((c)<<6)|((s)[(i)++]&0x3f); \
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case 1: \
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(c)=((c)<<6)|((s)[(i)++]&0x3f); \
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/* no other branches to optimize switch() */ \
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break; \
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} \
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} \
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}
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/** @deprecated ICU 2.4. Renamed to U8_APPEND_UNSAFE, see utf_old.h. */
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#define UTF8_APPEND_CHAR_UNSAFE(s, i, c) { \
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if((uint32_t)(c)<=0x7f) { \
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(s)[(i)++]=(uint8_t)(c); \
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} else { \
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if((uint32_t)(c)<=0x7ff) { \
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(s)[(i)++]=(uint8_t)(((c)>>6)|0xc0); \
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} else { \
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if((uint32_t)(c)<=0xffff) { \
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(s)[(i)++]=(uint8_t)(((c)>>12)|0xe0); \
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} else { \
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(s)[(i)++]=(uint8_t)(((c)>>18)|0xf0); \
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(s)[(i)++]=(uint8_t)((((c)>>12)&0x3f)|0x80); \
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} \
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(s)[(i)++]=(uint8_t)((((c)>>6)&0x3f)|0x80); \
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} \
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(s)[(i)++]=(uint8_t)(((c)&0x3f)|0x80); \
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} \
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}
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/** @deprecated ICU 2.4. Renamed to U8_FWD_1_UNSAFE, see utf_old.h. */
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#define UTF8_FWD_1_UNSAFE(s, i) { \
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(i)+=1+UTF8_COUNT_TRAIL_BYTES((s)[i]); \
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}
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/** @deprecated ICU 2.4. Renamed to U8_FWD_N_UNSAFE, see utf_old.h. */
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#define UTF8_FWD_N_UNSAFE(s, i, n) { \
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int32_t __N=(n); \
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while(__N>0) { \
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UTF8_FWD_1_UNSAFE(s, i); \
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--__N; \
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} \
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}
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/** @deprecated ICU 2.4. Renamed to U8_SET_CP_START_UNSAFE, see utf_old.h. */
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#define UTF8_SET_CHAR_START_UNSAFE(s, i) { \
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while(UTF8_IS_TRAIL((s)[i])) { --(i); } \
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}
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/** @deprecated ICU 2.4. Use U8_NEXT instead, see utf_old.h. */
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#define UTF8_NEXT_CHAR_SAFE(s, i, length, c, strict) { \
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(c)=(s)[(i)++]; \
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if((c)>=0x80) { \
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if(UTF8_IS_LEAD(c)) { \
|
|
(c)=utf8_nextCharSafeBody(s, &(i), (int32_t)(length), c, strict); \
|
|
} else { \
|
|
(c)=UTF8_ERROR_VALUE_1; \
|
|
} \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Use U8_APPEND instead, see utf_old.h. */
|
|
#define UTF8_APPEND_CHAR_SAFE(s, i, length, c) { \
|
|
if((uint32_t)(c)<=0x7f) { \
|
|
(s)[(i)++]=(uint8_t)(c); \
|
|
} else { \
|
|
(i)=utf8_appendCharSafeBody(s, (int32_t)(i), (int32_t)(length), c, NULL); \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U8_FWD_1, see utf_old.h. */
|
|
#define UTF8_FWD_1_SAFE(s, i, length) U8_FWD_1(s, i, length)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U8_FWD_N, see utf_old.h. */
|
|
#define UTF8_FWD_N_SAFE(s, i, length, n) U8_FWD_N(s, i, length, n)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U8_SET_CP_START, see utf_old.h. */
|
|
#define UTF8_SET_CHAR_START_SAFE(s, start, i) U8_SET_CP_START(s, start, i)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U8_PREV_UNSAFE, see utf_old.h. */
|
|
#define UTF8_PREV_CHAR_UNSAFE(s, i, c) { \
|
|
(c)=(s)[--(i)]; \
|
|
if(UTF8_IS_TRAIL(c)) { \
|
|
uint8_t __b, __count=1, __shift=6; \
|
|
\
|
|
/* c is a trail byte */ \
|
|
(c)&=0x3f; \
|
|
for(;;) { \
|
|
__b=(s)[--(i)]; \
|
|
if(__b>=0xc0) { \
|
|
UTF8_MASK_LEAD_BYTE(__b, __count); \
|
|
(c)|=(UChar32)__b<<__shift; \
|
|
break; \
|
|
} else { \
|
|
(c)|=(UChar32)(__b&0x3f)<<__shift; \
|
|
++__count; \
|
|
__shift+=6; \
|
|
} \
|
|
} \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U8_BACK_1_UNSAFE, see utf_old.h. */
|
|
#define UTF8_BACK_1_UNSAFE(s, i) { \
|
|
while(UTF8_IS_TRAIL((s)[--(i)])) {} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U8_BACK_N_UNSAFE, see utf_old.h. */
|
|
#define UTF8_BACK_N_UNSAFE(s, i, n) { \
|
|
int32_t __N=(n); \
|
|
while(__N>0) { \
|
|
UTF8_BACK_1_UNSAFE(s, i); \
|
|
--__N; \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U8_SET_CP_LIMIT_UNSAFE, see utf_old.h. */
|
|
#define UTF8_SET_CHAR_LIMIT_UNSAFE(s, i) { \
|
|
UTF8_BACK_1_UNSAFE(s, i); \
|
|
UTF8_FWD_1_UNSAFE(s, i); \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Use U8_PREV instead, see utf_old.h. */
|
|
#define UTF8_PREV_CHAR_SAFE(s, start, i, c, strict) { \
|
|
(c)=(s)[--(i)]; \
|
|
if((c)>=0x80) { \
|
|
if((c)<=0xbf) { \
|
|
(c)=utf8_prevCharSafeBody(s, start, &(i), c, strict); \
|
|
} else { \
|
|
(c)=UTF8_ERROR_VALUE_1; \
|
|
} \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U8_BACK_1, see utf_old.h. */
|
|
#define UTF8_BACK_1_SAFE(s, start, i) U8_BACK_1(s, start, i)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U8_BACK_N, see utf_old.h. */
|
|
#define UTF8_BACK_N_SAFE(s, start, i, n) U8_BACK_N(s, start, i, n)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U8_SET_CP_LIMIT, see utf_old.h. */
|
|
#define UTF8_SET_CHAR_LIMIT_SAFE(s, start, i, length) U8_SET_CP_LIMIT(s, start, i, length)
|
|
|
|
/* Formerly utf16.h --------------------------------------------------------- */
|
|
|
|
/** Is uchar a first/lead surrogate? @deprecated ICU 2.4. Renamed to U_IS_LEAD and U16_IS_LEAD, see utf_old.h. */
|
|
#define UTF_IS_FIRST_SURROGATE(uchar) (((uchar)&0xfffffc00)==0xd800)
|
|
|
|
/** Is uchar a second/trail surrogate? @deprecated ICU 2.4. Renamed to U_IS_TRAIL and U16_IS_TRAIL, see utf_old.h. */
|
|
#define UTF_IS_SECOND_SURROGATE(uchar) (((uchar)&0xfffffc00)==0xdc00)
|
|
|
|
/** Assuming c is a surrogate, is it a first/lead surrogate? @deprecated ICU 2.4. Renamed to U_IS_SURROGATE_LEAD and U16_IS_SURROGATE_LEAD, see utf_old.h. */
|
|
#define UTF_IS_SURROGATE_FIRST(c) (((c)&0x400)==0)
|
|
|
|
/** Helper constant for UTF16_GET_PAIR_VALUE. @deprecated ICU 2.4. Renamed to U16_SURROGATE_OFFSET, see utf_old.h. */
|
|
#define UTF_SURROGATE_OFFSET ((0xd800<<10UL)+0xdc00-0x10000)
|
|
|
|
/** Get the UTF-32 value from the surrogate code units. @deprecated ICU 2.4. Renamed to U16_GET_SUPPLEMENTARY, see utf_old.h. */
|
|
#define UTF16_GET_PAIR_VALUE(first, second) \
|
|
(((first)<<10UL)+(second)-UTF_SURROGATE_OFFSET)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_LEAD, see utf_old.h. */
|
|
#define UTF_FIRST_SURROGATE(supplementary) (UChar)(((supplementary)>>10)+0xd7c0)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_TRAIL, see utf_old.h. */
|
|
#define UTF_SECOND_SURROGATE(supplementary) (UChar)(((supplementary)&0x3ff)|0xdc00)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_LEAD, see utf_old.h. */
|
|
#define UTF16_LEAD(supplementary) UTF_FIRST_SURROGATE(supplementary)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_TRAIL, see utf_old.h. */
|
|
#define UTF16_TRAIL(supplementary) UTF_SECOND_SURROGATE(supplementary)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_IS_SINGLE, see utf_old.h. */
|
|
#define UTF16_IS_SINGLE(uchar) !UTF_IS_SURROGATE(uchar)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_IS_LEAD, see utf_old.h. */
|
|
#define UTF16_IS_LEAD(uchar) UTF_IS_FIRST_SURROGATE(uchar)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_IS_TRAIL, see utf_old.h. */
|
|
#define UTF16_IS_TRAIL(uchar) UTF_IS_SECOND_SURROGATE(uchar)
|
|
|
|
/** Does this scalar Unicode value need multiple code units for storage? @deprecated ICU 2.4. Use U16_LENGTH or test ((uint32_t)(c)>0xffff) instead, see utf_old.h. */
|
|
#define UTF16_NEED_MULTIPLE_UCHAR(c) ((uint32_t)(c)>0xffff)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_LENGTH, see utf_old.h. */
|
|
#define UTF16_CHAR_LENGTH(c) ((uint32_t)(c)<=0xffff ? 1 : 2)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_MAX_LENGTH, see utf_old.h. */
|
|
#define UTF16_MAX_CHAR_LENGTH 2
|
|
|
|
/** Average number of code units compared to UTF-16. @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF16_ARRAY_SIZE(size) (size)
|
|
|
|
/**
|
|
* Get a single code point from an offset that points to any
|
|
* of the code units that belong to that code point.
|
|
* Assume 0<=i<length.
|
|
*
|
|
* This could be used for iteration together with
|
|
* UTF16_CHAR_LENGTH() and UTF_IS_ERROR(),
|
|
* but the use of UTF16_NEXT_CHAR[_UNSAFE]() and
|
|
* UTF16_PREV_CHAR[_UNSAFE]() is more efficient for that.
|
|
* @deprecated ICU 2.4. Renamed to U16_GET_UNSAFE, see utf_old.h.
|
|
*/
|
|
#define UTF16_GET_CHAR_UNSAFE(s, i, c) { \
|
|
(c)=(s)[i]; \
|
|
if(UTF_IS_SURROGATE(c)) { \
|
|
if(UTF_IS_SURROGATE_FIRST(c)) { \
|
|
(c)=UTF16_GET_PAIR_VALUE((c), (s)[(i)+1]); \
|
|
} else { \
|
|
(c)=UTF16_GET_PAIR_VALUE((s)[(i)-1], (c)); \
|
|
} \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Use U16_GET instead, see utf_old.h. */
|
|
#define UTF16_GET_CHAR_SAFE(s, start, i, length, c, strict) { \
|
|
(c)=(s)[i]; \
|
|
if(UTF_IS_SURROGATE(c)) { \
|
|
uint16_t __c2; \
|
|
if(UTF_IS_SURROGATE_FIRST(c)) { \
|
|
if((i)+1<(length) && UTF_IS_SECOND_SURROGATE(__c2=(s)[(i)+1])) { \
|
|
(c)=UTF16_GET_PAIR_VALUE((c), __c2); \
|
|
/* strict: ((c)&0xfffe)==0xfffe is caught by UTF_IS_ERROR() and UTF_IS_UNICODE_CHAR() */ \
|
|
} else if(strict) {\
|
|
/* unmatched first surrogate */ \
|
|
(c)=UTF_ERROR_VALUE; \
|
|
} \
|
|
} else { \
|
|
if((i)-1>=(start) && UTF_IS_FIRST_SURROGATE(__c2=(s)[(i)-1])) { \
|
|
(c)=UTF16_GET_PAIR_VALUE(__c2, (c)); \
|
|
/* strict: ((c)&0xfffe)==0xfffe is caught by UTF_IS_ERROR() and UTF_IS_UNICODE_CHAR() */ \
|
|
} else if(strict) {\
|
|
/* unmatched second surrogate */ \
|
|
(c)=UTF_ERROR_VALUE; \
|
|
} \
|
|
} \
|
|
} else if((strict) && !UTF_IS_UNICODE_CHAR(c)) { \
|
|
(c)=UTF_ERROR_VALUE; \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_NEXT_UNSAFE, see utf_old.h. */
|
|
#define UTF16_NEXT_CHAR_UNSAFE(s, i, c) { \
|
|
(c)=(s)[(i)++]; \
|
|
if(UTF_IS_FIRST_SURROGATE(c)) { \
|
|
(c)=UTF16_GET_PAIR_VALUE((c), (s)[(i)++]); \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_APPEND_UNSAFE, see utf_old.h. */
|
|
#define UTF16_APPEND_CHAR_UNSAFE(s, i, c) { \
|
|
if((uint32_t)(c)<=0xffff) { \
|
|
(s)[(i)++]=(uint16_t)(c); \
|
|
} else { \
|
|
(s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \
|
|
(s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_FWD_1_UNSAFE, see utf_old.h. */
|
|
#define UTF16_FWD_1_UNSAFE(s, i) { \
|
|
if(UTF_IS_FIRST_SURROGATE((s)[(i)++])) { \
|
|
++(i); \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_FWD_N_UNSAFE, see utf_old.h. */
|
|
#define UTF16_FWD_N_UNSAFE(s, i, n) { \
|
|
int32_t __N=(n); \
|
|
while(__N>0) { \
|
|
UTF16_FWD_1_UNSAFE(s, i); \
|
|
--__N; \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_SET_CP_START_UNSAFE, see utf_old.h. */
|
|
#define UTF16_SET_CHAR_START_UNSAFE(s, i) { \
|
|
if(UTF_IS_SECOND_SURROGATE((s)[i])) { \
|
|
--(i); \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Use U16_NEXT instead, see utf_old.h. */
|
|
#define UTF16_NEXT_CHAR_SAFE(s, i, length, c, strict) { \
|
|
(c)=(s)[(i)++]; \
|
|
if(UTF_IS_FIRST_SURROGATE(c)) { \
|
|
uint16_t __c2; \
|
|
if((i)<(length) && UTF_IS_SECOND_SURROGATE(__c2=(s)[(i)])) { \
|
|
++(i); \
|
|
(c)=UTF16_GET_PAIR_VALUE((c), __c2); \
|
|
/* strict: ((c)&0xfffe)==0xfffe is caught by UTF_IS_ERROR() and UTF_IS_UNICODE_CHAR() */ \
|
|
} else if(strict) {\
|
|
/* unmatched first surrogate */ \
|
|
(c)=UTF_ERROR_VALUE; \
|
|
} \
|
|
} else if((strict) && !UTF_IS_UNICODE_CHAR(c)) { \
|
|
/* unmatched second surrogate or other non-character */ \
|
|
(c)=UTF_ERROR_VALUE; \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Use U16_APPEND instead, see utf_old.h. */
|
|
#define UTF16_APPEND_CHAR_SAFE(s, i, length, c) { \
|
|
if((uint32_t)(c)<=0xffff) { \
|
|
(s)[(i)++]=(uint16_t)(c); \
|
|
} else if((uint32_t)(c)<=0x10ffff) { \
|
|
if((i)+1<(length)) { \
|
|
(s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \
|
|
(s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \
|
|
} else /* not enough space */ { \
|
|
(s)[(i)++]=UTF_ERROR_VALUE; \
|
|
} \
|
|
} else /* c>0x10ffff, write error value */ { \
|
|
(s)[(i)++]=UTF_ERROR_VALUE; \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_FWD_1, see utf_old.h. */
|
|
#define UTF16_FWD_1_SAFE(s, i, length) U16_FWD_1(s, i, length)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_FWD_N, see utf_old.h. */
|
|
#define UTF16_FWD_N_SAFE(s, i, length, n) U16_FWD_N(s, i, length, n)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_SET_CP_START, see utf_old.h. */
|
|
#define UTF16_SET_CHAR_START_SAFE(s, start, i) U16_SET_CP_START(s, start, i)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_PREV_UNSAFE, see utf_old.h. */
|
|
#define UTF16_PREV_CHAR_UNSAFE(s, i, c) { \
|
|
(c)=(s)[--(i)]; \
|
|
if(UTF_IS_SECOND_SURROGATE(c)) { \
|
|
(c)=UTF16_GET_PAIR_VALUE((s)[--(i)], (c)); \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_BACK_1_UNSAFE, see utf_old.h. */
|
|
#define UTF16_BACK_1_UNSAFE(s, i) { \
|
|
if(UTF_IS_SECOND_SURROGATE((s)[--(i)])) { \
|
|
--(i); \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_BACK_N_UNSAFE, see utf_old.h. */
|
|
#define UTF16_BACK_N_UNSAFE(s, i, n) { \
|
|
int32_t __N=(n); \
|
|
while(__N>0) { \
|
|
UTF16_BACK_1_UNSAFE(s, i); \
|
|
--__N; \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_SET_CP_LIMIT_UNSAFE, see utf_old.h. */
|
|
#define UTF16_SET_CHAR_LIMIT_UNSAFE(s, i) { \
|
|
if(UTF_IS_FIRST_SURROGATE((s)[(i)-1])) { \
|
|
++(i); \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Use U16_PREV instead, see utf_old.h. */
|
|
#define UTF16_PREV_CHAR_SAFE(s, start, i, c, strict) { \
|
|
(c)=(s)[--(i)]; \
|
|
if(UTF_IS_SECOND_SURROGATE(c)) { \
|
|
uint16_t __c2; \
|
|
if((i)>(start) && UTF_IS_FIRST_SURROGATE(__c2=(s)[(i)-1])) { \
|
|
--(i); \
|
|
(c)=UTF16_GET_PAIR_VALUE(__c2, (c)); \
|
|
/* strict: ((c)&0xfffe)==0xfffe is caught by UTF_IS_ERROR() and UTF_IS_UNICODE_CHAR() */ \
|
|
} else if(strict) {\
|
|
/* unmatched second surrogate */ \
|
|
(c)=UTF_ERROR_VALUE; \
|
|
} \
|
|
} else if((strict) && !UTF_IS_UNICODE_CHAR(c)) { \
|
|
/* unmatched first surrogate or other non-character */ \
|
|
(c)=UTF_ERROR_VALUE; \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_BACK_1, see utf_old.h. */
|
|
#define UTF16_BACK_1_SAFE(s, start, i) U16_BACK_1(s, start, i)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_BACK_N, see utf_old.h. */
|
|
#define UTF16_BACK_N_SAFE(s, start, i, n) U16_BACK_N(s, start, i, n)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_SET_CP_LIMIT, see utf_old.h. */
|
|
#define UTF16_SET_CHAR_LIMIT_SAFE(s, start, i, length) U16_SET_CP_LIMIT(s, start, i, length)
|
|
|
|
/* Formerly utf32.h --------------------------------------------------------- */
|
|
|
|
/*
|
|
* Old documentation:
|
|
*
|
|
* This file defines macros to deal with UTF-32 code units and code points.
|
|
* Signatures and semantics are the same as for the similarly named macros
|
|
* in utf16.h.
|
|
* utf32.h is included by utf.h after unicode/umachine.h</p>
|
|
* and some common definitions.
|
|
* <p><b>Usage:</b> ICU coding guidelines for if() statements should be followed when using these macros.
|
|
* Compound statements (curly braces {}) must be used for if-else-while...
|
|
* bodies and all macro statements should be terminated with semicolon.</p>
|
|
*/
|
|
|
|
/* internal definitions ----------------------------------------------------- */
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_IS_SAFE(c, strict) \
|
|
(!(strict) ? \
|
|
(uint32_t)(c)<=0x10ffff : \
|
|
UTF_IS_UNICODE_CHAR(c))
|
|
|
|
/*
|
|
* For the semantics of all of these macros, see utf16.h.
|
|
* The UTF-32 versions are trivial because any code point is
|
|
* encoded using exactly one code unit.
|
|
*/
|
|
|
|
/* single-code point definitions -------------------------------------------- */
|
|
|
|
/* classes of code unit values */
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_IS_SINGLE(uchar) 1
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_IS_LEAD(uchar) 0
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_IS_TRAIL(uchar) 0
|
|
|
|
/* number of code units per code point */
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_NEED_MULTIPLE_UCHAR(c) 0
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_CHAR_LENGTH(c) 1
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_MAX_CHAR_LENGTH 1
|
|
|
|
/* average number of code units compared to UTF-16 */
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_ARRAY_SIZE(size) (size)
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_GET_CHAR_UNSAFE(s, i, c) { \
|
|
(c)=(s)[i]; \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_GET_CHAR_SAFE(s, start, i, length, c, strict) { \
|
|
(c)=(s)[i]; \
|
|
if(!UTF32_IS_SAFE(c, strict)) { \
|
|
(c)=UTF_ERROR_VALUE; \
|
|
} \
|
|
}
|
|
|
|
/* definitions with forward iteration --------------------------------------- */
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_NEXT_CHAR_UNSAFE(s, i, c) { \
|
|
(c)=(s)[(i)++]; \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_APPEND_CHAR_UNSAFE(s, i, c) { \
|
|
(s)[(i)++]=(c); \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_FWD_1_UNSAFE(s, i) { \
|
|
++(i); \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_FWD_N_UNSAFE(s, i, n) { \
|
|
(i)+=(n); \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_SET_CHAR_START_UNSAFE(s, i) { \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_NEXT_CHAR_SAFE(s, i, length, c, strict) { \
|
|
(c)=(s)[(i)++]; \
|
|
if(!UTF32_IS_SAFE(c, strict)) { \
|
|
(c)=UTF_ERROR_VALUE; \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_APPEND_CHAR_SAFE(s, i, length, c) { \
|
|
if((uint32_t)(c)<=0x10ffff) { \
|
|
(s)[(i)++]=(c); \
|
|
} else /* c>0x10ffff, write 0xfffd */ { \
|
|
(s)[(i)++]=0xfffd; \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_FWD_1_SAFE(s, i, length) { \
|
|
++(i); \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_FWD_N_SAFE(s, i, length, n) { \
|
|
if(((i)+=(n))>(length)) { \
|
|
(i)=(length); \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_SET_CHAR_START_SAFE(s, start, i) { \
|
|
}
|
|
|
|
/* definitions with backward iteration -------------------------------------- */
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_PREV_CHAR_UNSAFE(s, i, c) { \
|
|
(c)=(s)[--(i)]; \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_BACK_1_UNSAFE(s, i) { \
|
|
--(i); \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_BACK_N_UNSAFE(s, i, n) { \
|
|
(i)-=(n); \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_SET_CHAR_LIMIT_UNSAFE(s, i) { \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_PREV_CHAR_SAFE(s, start, i, c, strict) { \
|
|
(c)=(s)[--(i)]; \
|
|
if(!UTF32_IS_SAFE(c, strict)) { \
|
|
(c)=UTF_ERROR_VALUE; \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_BACK_1_SAFE(s, start, i) { \
|
|
--(i); \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_BACK_N_SAFE(s, start, i, n) { \
|
|
(i)-=(n); \
|
|
if((i)<(start)) { \
|
|
(i)=(start); \
|
|
} \
|
|
}
|
|
|
|
/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
|
|
#define UTF32_SET_CHAR_LIMIT_SAFE(s, i, length) { \
|
|
}
|
|
|
|
/* Formerly utf.h, part 2 --------------------------------------------------- */
|
|
|
|
/**
|
|
* Estimate the number of code units for a string based on the number of UTF-16 code units.
|
|
*
|
|
* @deprecated ICU 2.4. Obsolete, see utf_old.h.
|
|
*/
|
|
#define UTF_ARRAY_SIZE(size) UTF16_ARRAY_SIZE(size)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_GET_UNSAFE, see utf_old.h. */
|
|
#define UTF_GET_CHAR_UNSAFE(s, i, c) UTF16_GET_CHAR_UNSAFE(s, i, c)
|
|
|
|
/** @deprecated ICU 2.4. Use U16_GET instead, see utf_old.h. */
|
|
#define UTF_GET_CHAR_SAFE(s, start, i, length, c, strict) UTF16_GET_CHAR_SAFE(s, start, i, length, c, strict)
|
|
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_NEXT_UNSAFE, see utf_old.h. */
|
|
#define UTF_NEXT_CHAR_UNSAFE(s, i, c) UTF16_NEXT_CHAR_UNSAFE(s, i, c)
|
|
|
|
/** @deprecated ICU 2.4. Use U16_NEXT instead, see utf_old.h. */
|
|
#define UTF_NEXT_CHAR_SAFE(s, i, length, c, strict) UTF16_NEXT_CHAR_SAFE(s, i, length, c, strict)
|
|
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_APPEND_UNSAFE, see utf_old.h. */
|
|
#define UTF_APPEND_CHAR_UNSAFE(s, i, c) UTF16_APPEND_CHAR_UNSAFE(s, i, c)
|
|
|
|
/** @deprecated ICU 2.4. Use U16_APPEND instead, see utf_old.h. */
|
|
#define UTF_APPEND_CHAR_SAFE(s, i, length, c) UTF16_APPEND_CHAR_SAFE(s, i, length, c)
|
|
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_FWD_1_UNSAFE, see utf_old.h. */
|
|
#define UTF_FWD_1_UNSAFE(s, i) UTF16_FWD_1_UNSAFE(s, i)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_FWD_1, see utf_old.h. */
|
|
#define UTF_FWD_1_SAFE(s, i, length) UTF16_FWD_1_SAFE(s, i, length)
|
|
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_FWD_N_UNSAFE, see utf_old.h. */
|
|
#define UTF_FWD_N_UNSAFE(s, i, n) UTF16_FWD_N_UNSAFE(s, i, n)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_FWD_N, see utf_old.h. */
|
|
#define UTF_FWD_N_SAFE(s, i, length, n) UTF16_FWD_N_SAFE(s, i, length, n)
|
|
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_SET_CP_START_UNSAFE, see utf_old.h. */
|
|
#define UTF_SET_CHAR_START_UNSAFE(s, i) UTF16_SET_CHAR_START_UNSAFE(s, i)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_SET_CP_START, see utf_old.h. */
|
|
#define UTF_SET_CHAR_START_SAFE(s, start, i) UTF16_SET_CHAR_START_SAFE(s, start, i)
|
|
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_PREV_UNSAFE, see utf_old.h. */
|
|
#define UTF_PREV_CHAR_UNSAFE(s, i, c) UTF16_PREV_CHAR_UNSAFE(s, i, c)
|
|
|
|
/** @deprecated ICU 2.4. Use U16_PREV instead, see utf_old.h. */
|
|
#define UTF_PREV_CHAR_SAFE(s, start, i, c, strict) UTF16_PREV_CHAR_SAFE(s, start, i, c, strict)
|
|
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_BACK_1_UNSAFE, see utf_old.h. */
|
|
#define UTF_BACK_1_UNSAFE(s, i) UTF16_BACK_1_UNSAFE(s, i)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_BACK_1, see utf_old.h. */
|
|
#define UTF_BACK_1_SAFE(s, start, i) UTF16_BACK_1_SAFE(s, start, i)
|
|
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_BACK_N_UNSAFE, see utf_old.h. */
|
|
#define UTF_BACK_N_UNSAFE(s, i, n) UTF16_BACK_N_UNSAFE(s, i, n)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_BACK_N, see utf_old.h. */
|
|
#define UTF_BACK_N_SAFE(s, start, i, n) UTF16_BACK_N_SAFE(s, start, i, n)
|
|
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_SET_CP_LIMIT_UNSAFE, see utf_old.h. */
|
|
#define UTF_SET_CHAR_LIMIT_UNSAFE(s, i) UTF16_SET_CHAR_LIMIT_UNSAFE(s, i)
|
|
|
|
/** @deprecated ICU 2.4. Renamed to U16_SET_CP_LIMIT, see utf_old.h. */
|
|
#define UTF_SET_CHAR_LIMIT_SAFE(s, start, i, length) UTF16_SET_CHAR_LIMIT_SAFE(s, start, i, length)
|
|
|
|
/* Define default macros (UTF-16 "safe") ------------------------------------ */
|
|
|
|
/**
|
|
* Does this code unit alone encode a code point (BMP, not a surrogate)?
|
|
* Same as UTF16_IS_SINGLE.
|
|
* @deprecated ICU 2.4. Renamed to U_IS_SINGLE and U16_IS_SINGLE, see utf_old.h.
|
|
*/
|
|
#define UTF_IS_SINGLE(uchar) U16_IS_SINGLE(uchar)
|
|
|
|
/**
|
|
* Is this code unit the first one of several (a lead surrogate)?
|
|
* Same as UTF16_IS_LEAD.
|
|
* @deprecated ICU 2.4. Renamed to U_IS_LEAD and U16_IS_LEAD, see utf_old.h.
|
|
*/
|
|
#define UTF_IS_LEAD(uchar) U16_IS_LEAD(uchar)
|
|
|
|
/**
|
|
* Is this code unit one of several but not the first one (a trail surrogate)?
|
|
* Same as UTF16_IS_TRAIL.
|
|
* @deprecated ICU 2.4. Renamed to U_IS_TRAIL and U16_IS_TRAIL, see utf_old.h.
|
|
*/
|
|
#define UTF_IS_TRAIL(uchar) U16_IS_TRAIL(uchar)
|
|
|
|
/**
|
|
* Does this code point require multiple code units (is it a supplementary code point)?
|
|
* Same as UTF16_NEED_MULTIPLE_UCHAR.
|
|
* @deprecated ICU 2.4. Use U16_LENGTH or test ((uint32_t)(c)>0xffff) instead.
|
|
*/
|
|
#define UTF_NEED_MULTIPLE_UCHAR(c) UTF16_NEED_MULTIPLE_UCHAR(c)
|
|
|
|
/**
|
|
* How many code units are used to encode this code point (1 or 2)?
|
|
* Same as UTF16_CHAR_LENGTH.
|
|
* @deprecated ICU 2.4. Renamed to U16_LENGTH, see utf_old.h.
|
|
*/
|
|
#define UTF_CHAR_LENGTH(c) U16_LENGTH(c)
|
|
|
|
/**
|
|
* How many code units are used at most for any Unicode code point (2)?
|
|
* Same as UTF16_MAX_CHAR_LENGTH.
|
|
* @deprecated ICU 2.4. Renamed to U16_MAX_LENGTH, see utf_old.h.
|
|
*/
|
|
#define UTF_MAX_CHAR_LENGTH U16_MAX_LENGTH
|
|
|
|
/**
|
|
* Set c to the code point that contains the code unit i.
|
|
* i could point to the lead or the trail surrogate for the code point.
|
|
* i is not modified.
|
|
* Same as UTF16_GET_CHAR.
|
|
* \pre 0<=i<length
|
|
*
|
|
* @deprecated ICU 2.4. Renamed to U16_GET, see utf_old.h.
|
|
*/
|
|
#define UTF_GET_CHAR(s, start, i, length, c) U16_GET(s, start, i, length, c)
|
|
|
|
/**
|
|
* Set c to the code point that starts at code unit i
|
|
* and advance i to beyond the code units of this code point (post-increment).
|
|
* i must point to the first code unit of a code point.
|
|
* Otherwise c is set to the trail unit (surrogate) itself.
|
|
* Same as UTF16_NEXT_CHAR.
|
|
* \pre 0<=i<length
|
|
* \post 0<i<=length
|
|
*
|
|
* @deprecated ICU 2.4. Renamed to U16_NEXT, see utf_old.h.
|
|
*/
|
|
#define UTF_NEXT_CHAR(s, i, length, c) U16_NEXT(s, i, length, c)
|
|
|
|
/**
|
|
* Append the code units of code point c to the string at index i
|
|
* and advance i to beyond the new code units (post-increment).
|
|
* The code units beginning at index i will be overwritten.
|
|
* Same as UTF16_APPEND_CHAR.
|
|
* \pre 0<=c<=0x10ffff
|
|
* \pre 0<=i<length
|
|
* \post 0<i<=length
|
|
*
|
|
* @deprecated ICU 2.4. Use U16_APPEND instead, see utf_old.h.
|
|
*/
|
|
#define UTF_APPEND_CHAR(s, i, length, c) UTF16_APPEND_CHAR_SAFE(s, i, length, c)
|
|
|
|
/**
|
|
* Advance i to beyond the code units of the code point that begins at i.
|
|
* I.e., advance i by one code point.
|
|
* Same as UTF16_FWD_1.
|
|
* \pre 0<=i<length
|
|
* \post 0<i<=length
|
|
*
|
|
* @deprecated ICU 2.4. Renamed to U16_FWD_1, see utf_old.h.
|
|
*/
|
|
#define UTF_FWD_1(s, i, length) U16_FWD_1(s, i, length)
|
|
|
|
/**
|
|
* Advance i to beyond the code units of the n code points where the first one begins at i.
|
|
* I.e., advance i by n code points.
|
|
* Same as UT16_FWD_N.
|
|
* \pre 0<=i<length
|
|
* \post 0<i<=length
|
|
*
|
|
* @deprecated ICU 2.4. Renamed to U16_FWD_N, see utf_old.h.
|
|
*/
|
|
#define UTF_FWD_N(s, i, length, n) U16_FWD_N(s, i, length, n)
|
|
|
|
/**
|
|
* Take the random-access index i and adjust it so that it points to the beginning
|
|
* of a code point.
|
|
* The input index points to any code unit of a code point and is moved to point to
|
|
* the first code unit of the same code point. i is never incremented.
|
|
* In other words, if i points to a trail surrogate that is preceded by a matching
|
|
* lead surrogate, then i is decremented. Otherwise it is not modified.
|
|
* This can be used to start an iteration with UTF_NEXT_CHAR() from a random index.
|
|
* Same as UTF16_SET_CHAR_START.
|
|
* \pre start<=i<length
|
|
* \post start<=i<length
|
|
*
|
|
* @deprecated ICU 2.4. Renamed to U16_SET_CP_START, see utf_old.h.
|
|
*/
|
|
#define UTF_SET_CHAR_START(s, start, i) U16_SET_CP_START(s, start, i)
|
|
|
|
/**
|
|
* Set c to the code point that has code units before i
|
|
* and move i backward (towards the beginning of the string)
|
|
* to the first code unit of this code point (pre-increment).
|
|
* i must point to the first code unit after the last unit of a code point (i==length is allowed).
|
|
* Same as UTF16_PREV_CHAR.
|
|
* \pre start<i<=length
|
|
* \post start<=i<length
|
|
*
|
|
* @deprecated ICU 2.4. Renamed to U16_PREV, see utf_old.h.
|
|
*/
|
|
#define UTF_PREV_CHAR(s, start, i, c) U16_PREV(s, start, i, c)
|
|
|
|
/**
|
|
* Move i backward (towards the beginning of the string)
|
|
* to the first code unit of the code point that has code units before i.
|
|
* I.e., move i backward by one code point.
|
|
* i must point to the first code unit after the last unit of a code point (i==length is allowed).
|
|
* Same as UTF16_BACK_1.
|
|
* \pre start<i<=length
|
|
* \post start<=i<length
|
|
*
|
|
* @deprecated ICU 2.4. Renamed to U16_BACK_1, see utf_old.h.
|
|
*/
|
|
#define UTF_BACK_1(s, start, i) U16_BACK_1(s, start, i)
|
|
|
|
/**
|
|
* Move i backward (towards the beginning of the string)
|
|
* to the first code unit of the n code points that have code units before i.
|
|
* I.e., move i backward by n code points.
|
|
* i must point to the first code unit after the last unit of a code point (i==length is allowed).
|
|
* Same as UTF16_BACK_N.
|
|
* \pre start<i<=length
|
|
* \post start<=i<length
|
|
*
|
|
* @deprecated ICU 2.4. Renamed to U16_BACK_N, see utf_old.h.
|
|
*/
|
|
#define UTF_BACK_N(s, start, i, n) U16_BACK_N(s, start, i, n)
|
|
|
|
/**
|
|
* Take the random-access index i and adjust it so that it points beyond
|
|
* a code point. The input index points beyond any code unit
|
|
* of a code point and is moved to point beyond the last code unit of the same
|
|
* code point. i is never decremented.
|
|
* In other words, if i points to a trail surrogate that is preceded by a matching
|
|
* lead surrogate, then i is incremented. Otherwise it is not modified.
|
|
* This can be used to start an iteration with UTF_PREV_CHAR() from a random index.
|
|
* Same as UTF16_SET_CHAR_LIMIT.
|
|
* \pre start<i<=length
|
|
* \post start<i<=length
|
|
*
|
|
* @deprecated ICU 2.4. Renamed to U16_SET_CP_LIMIT, see utf_old.h.
|
|
*/
|
|
#define UTF_SET_CHAR_LIMIT(s, start, i, length) U16_SET_CP_LIMIT(s, start, i, length)
|
|
|
|
#endif /* U_HIDE_DEPRECATED_API */
|
|
|
|
#endif
|
|
|