[apple/icu.git] / icuSources / common / unicode / uconfig.h

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*  
**********************************************************************
*   Copyright (C) 2002-2016, International Business Machines
*   Corporation and others.  All Rights Reserved.
**********************************************************************
*   file name:  uconfig.h
*   encoding:   UTF-8
*   tab size:   8 (not used)
*   indentation:4
*
*   created on: 2002sep19
*   created by: Markus W. Scherer
*/

#ifndef __UCONFIG_H__
#define __UCONFIG_H__


/*!
 * \file
 * \brief User-configurable settings
 *
 * Miscellaneous switches:
 *
 * A number of macros affect a variety of minor aspects of ICU.
 * Most of them used to be defined elsewhere (e.g., in utypes.h or platform.h)
 * and moved here to make them easier to find.
 *
 * Switches for excluding parts of ICU library code modules:
 *
 * Changing these macros allows building partial, smaller libraries for special purposes.
 * By default, all modules are built.
 * The switches are fairly coarse, controlling large modules.
 * Basic services cannot be turned off.
 *
 * Building with any of these options does not guarantee that the
 * ICU build process will completely work. It is recommended that
 * the ICU libraries and data be built using the normal build.
 * At that time you should remove the data used by those services.
 * After building the ICU data library, you should rebuild the ICU
 * libraries with these switches customized to your needs.
 *
 * @stable ICU 2.4
 */

/**
 * If this switch is defined, ICU will attempt to load a header file named "uconfig_local.h"
 * prior to determining default settings for uconfig variables.
 *
 * @internal ICU 4.0
 */
#if defined(UCONFIG_USE_LOCAL)
#include "uconfig_local.h"
#endif

/**
 * \def U_DEBUG
 * Determines whether to include debugging code.
 * Automatically set on Windows, but most compilers do not have
 * related predefined macros.
 * @internal
 */
#ifdef U_DEBUG
    /* Use the predefined value. */
#elif defined(_DEBUG)
    /*
     * _DEBUG is defined by Visual Studio debug compilation.
     * Do *not* test for its NDEBUG macro: It is an orthogonal macro
     * which disables assert().
     */
#   define U_DEBUG 1
# else
#   define U_DEBUG 0
#endif

/**
 * Determines wheter to enable auto cleanup of libraries. 
 * @internal
 */
#ifndef UCLN_NO_AUTO_CLEANUP
#define UCLN_NO_AUTO_CLEANUP 1
#endif

/**
 * \def U_DISABLE_RENAMING
 * Determines whether to disable renaming or not.
 * @internal
 */
#ifndef U_DISABLE_RENAMING
#define U_DISABLE_RENAMING 1
#endif

/**
 * \def U_NO_DEFAULT_INCLUDE_UTF_HEADERS
 * Determines whether utypes.h includes utf.h, utf8.h, utf16.h and utf_old.h.
 * utypes.h includes those headers if this macro is defined to 0.
 * Otherwise, each those headers must be included explicitly when using one of their macros.
 * Defaults to 0 for backward compatibility, except inside ICU.
 * @stable ICU 49
 */
#ifdef U_NO_DEFAULT_INCLUDE_UTF_HEADERS
    /* Use the predefined value. */
#elif defined(U_COMBINED_IMPLEMENTATION) || defined(U_COMMON_IMPLEMENTATION) || defined(U_I18N_IMPLEMENTATION) || \
      defined(U_IO_IMPLEMENTATION) || defined(U_LAYOUT_IMPLEMENTATION) || defined(U_LAYOUTEX_IMPLEMENTATION) || \
      defined(U_TOOLUTIL_IMPLEMENTATION)
#   define U_NO_DEFAULT_INCLUDE_UTF_HEADERS 1
#else
#   define U_NO_DEFAULT_INCLUDE_UTF_HEADERS 0
#endif

/**
 * \def U_OVERRIDE_CXX_ALLOCATION
 * Determines whether to override new and delete.
 * ICU is normally built such that all of its C++ classes, via their UMemory base,
 * override operators new and delete to use its internal, customizable,
 * non-exception-throwing memory allocation functions. (Default value 1 for this macro.)
 *
 * This is especially important when the application and its libraries use multiple heaps.
 * For example, on Windows, this allows the ICU DLL to be used by
 * applications that statically link the C Runtime library.
 *
 * @stable ICU 2.2
 */
#ifndef U_OVERRIDE_CXX_ALLOCATION
#define U_OVERRIDE_CXX_ALLOCATION 1
#endif

/**
 * \def U_ENABLE_TRACING
 * Determines whether to enable tracing.
 * @internal
 */
#ifndef U_ENABLE_TRACING
#define U_ENABLE_TRACING 0
#endif

/**
 * \def UCONFIG_ENABLE_PLUGINS
 * Determines whether to enable ICU plugins.
 * @internal
 */
#ifndef UCONFIG_ENABLE_PLUGINS
#define UCONFIG_ENABLE_PLUGINS 0
#endif

/**
 * \def U_ENABLE_DYLOAD
 * Whether to enable Dynamic loading in ICU.
 * @internal
 */
#ifndef U_ENABLE_DYLOAD
#define U_ENABLE_DYLOAD 1
#endif

/**
 * \def U_CHECK_DYLOAD
 * Whether to test Dynamic loading as an OS capability.
 * @internal
 */
#ifndef U_CHECK_DYLOAD
#define U_CHECK_DYLOAD 1
#endif

/**
 * \def U_DEFAULT_SHOW_DRAFT
 * Do we allow ICU users to use the draft APIs by default?
 * @internal
 */
#ifndef U_DEFAULT_SHOW_DRAFT
#define U_DEFAULT_SHOW_DRAFT 1
#endif

/*===========================================================================*/
/* Custom icu entry point renaming                                           */
/*===========================================================================*/

/**
 * \def U_HAVE_LIB_SUFFIX
 * 1 if a custom library suffix is set.
 * @internal
 */
#ifdef U_HAVE_LIB_SUFFIX
    /* Use the predefined value. */
#elif defined(U_LIB_SUFFIX_C_NAME)
#   define U_HAVE_LIB_SUFFIX 1
#endif

/**
 * \def U_LIB_SUFFIX_C_NAME_STRING
 * Defines the library suffix as a string with C syntax.
 * @internal
 */
#ifdef U_LIB_SUFFIX_C_NAME_STRING
    /* Use the predefined value. */
#elif defined(U_LIB_SUFFIX_C_NAME)
#   define CONVERT_TO_STRING(s) #s
#   define U_LIB_SUFFIX_C_NAME_STRING CONVERT_TO_STRING(U_LIB_SUFFIX_C_NAME)
#else
#   define U_LIB_SUFFIX_C_NAME_STRING ""
#endif

/* common/i18n library switches --------------------------------------------- */

/**
 * \def UCONFIG_ONLY_COLLATION
 * This switch turns off modules that are not needed for collation.
 *
 * It does not turn off legacy conversion because that is necessary
 * for ICU to work on EBCDIC platforms (for the default converter).
 * If you want "only collation" and do not build for EBCDIC,
 * then you can define UCONFIG_NO_CONVERSION or UCONFIG_NO_LEGACY_CONVERSION to 1 as well.
 *
 * @stable ICU 2.4
 */
#ifndef UCONFIG_ONLY_COLLATION
#   define UCONFIG_ONLY_COLLATION 0
#endif

#if UCONFIG_ONLY_COLLATION
    /* common library */
#   define UCONFIG_NO_BREAK_ITERATION 1
#   define UCONFIG_NO_IDNA 1

    /* i18n library */
#   if UCONFIG_NO_COLLATION
#       error Contradictory collation switches in uconfig.h.
#   endif
#   define UCONFIG_NO_FORMATTING 1
#   define UCONFIG_NO_TRANSLITERATION 1
#   define UCONFIG_NO_REGULAR_EXPRESSIONS 1
#endif

/* common library switches -------------------------------------------------- */

/**
 * \def UCONFIG_NO_FILE_IO
 * This switch turns off all file access in the common library
 * where file access is only used for data loading.
 * ICU data must then be provided in the form of a data DLL (or with an
 * equivalent way to link to the data residing in an executable,
 * as in building a combined library with both the common library's code and
 * the data), or via udata_setCommonData().
 * Application data must be provided via udata_setAppData() or by using
 * "open" functions that take pointers to data, for example ucol_openBinary().
 *
 * File access is not used at all in the i18n library.
 *
 * File access cannot be turned off for the icuio library or for the ICU
 * test suites and ICU tools.
 *
 * @stable ICU 3.6
 */
#ifndef UCONFIG_NO_FILE_IO
#   define UCONFIG_NO_FILE_IO 0
#endif

#if UCONFIG_NO_FILE_IO && defined(U_TIMEZONE_FILES_DIR) 
#   error Contradictory file io switches in uconfig.h.
#endif

/**
 * \def UCONFIG_NO_CONVERSION
 * ICU will not completely build with this switch turned on.
 * This switch turns off all converters.
 *
 * You may want to use this together with U_CHARSET_IS_UTF8 defined to 1
 * in utypes.h if char* strings in your environment are always in UTF-8.
 *
 * @stable ICU 3.2
 * @see U_CHARSET_IS_UTF8
 */
#ifndef UCONFIG_NO_CONVERSION
#   define UCONFIG_NO_CONVERSION 0
#endif

#if UCONFIG_NO_CONVERSION
#   define UCONFIG_NO_LEGACY_CONVERSION 1
#endif

/**
 * \def UCONFIG_ONLY_HTML_CONVERSION
 * This switch turns off all of the converters NOT listed in
 * the HTML encoding standard:
 * http://www.w3.org/TR/encoding/#names-and-labels
 *
 * This is not possible on EBCDIC platforms
 * because they need ibm-37 or ibm-1047 default converters.
 *
 * @stable ICU 55
 */
#ifndef UCONFIG_ONLY_HTML_CONVERSION
#   define UCONFIG_ONLY_HTML_CONVERSION 0
#endif

/**
 * \def UCONFIG_NO_LEGACY_CONVERSION
 * This switch turns off all converters except for
 * - Unicode charsets (UTF-7/8/16/32, CESU-8, SCSU, BOCU-1)
 * - US-ASCII
 * - ISO-8859-1
 *
 * Turning off legacy conversion is not possible on EBCDIC platforms
 * because they need ibm-37 or ibm-1047 default converters.
 *
 * @stable ICU 2.4
 */
#ifndef UCONFIG_NO_LEGACY_CONVERSION
#   define UCONFIG_NO_LEGACY_CONVERSION 0
#endif

/**
 * \def UCONFIG_NO_NORMALIZATION
 * This switch turns off normalization.
 * It implies turning off several other services as well, for example
 * collation and IDNA.
 *
 * @stable ICU 2.6
 */
#ifndef UCONFIG_NO_NORMALIZATION
#   define UCONFIG_NO_NORMALIZATION 0
#elif UCONFIG_NO_NORMALIZATION
    /* common library */
    /* ICU 50 CJK dictionary BreakIterator uses normalization */
#   define UCONFIG_NO_BREAK_ITERATION 1
    /* IDNA (UTS #46) is implemented via normalization */
#   define UCONFIG_NO_IDNA 1

    /* i18n library */
#   if UCONFIG_ONLY_COLLATION
#       error Contradictory collation switches in uconfig.h.
#   endif
#   define UCONFIG_NO_COLLATION 1
#   define UCONFIG_NO_TRANSLITERATION 1
#endif

/**
 * \def UCONFIG_NO_BREAK_ITERATION
 * This switch turns off break iteration.
 *
 * @stable ICU 2.4
 */
#ifndef UCONFIG_NO_BREAK_ITERATION
#   define UCONFIG_NO_BREAK_ITERATION 0
#endif

/**
 * \def UCONFIG_NO_IDNA
 * This switch turns off IDNA.
 *
 * @stable ICU 2.6
 */
#ifndef UCONFIG_NO_IDNA
#   define UCONFIG_NO_IDNA 0
#endif

/**
 * \def UCONFIG_MSGPAT_DEFAULT_APOSTROPHE_MODE
 * Determines the default UMessagePatternApostropheMode.
 * See the documentation for that enum.
 *
 * @stable ICU 4.8
 */
#ifndef UCONFIG_MSGPAT_DEFAULT_APOSTROPHE_MODE
#   define UCONFIG_MSGPAT_DEFAULT_APOSTROPHE_MODE UMSGPAT_APOS_DOUBLE_OPTIONAL
#endif

/* i18n library switches ---------------------------------------------------- */

/**
 * \def UCONFIG_NO_COLLATION
 * This switch turns off collation and collation-based string search.
 *
 * @stable ICU 2.4
 */
#ifndef UCONFIG_NO_COLLATION
#   define UCONFIG_NO_COLLATION 0
#endif

/**
 * \def UCONFIG_NO_FORMATTING
 * This switch turns off formatting and calendar/timezone services.
 *
 * @stable ICU 2.4
 */
#ifndef UCONFIG_NO_FORMATTING
#   define UCONFIG_NO_FORMATTING 0
#endif

/**
 * \def UCONFIG_NO_TRANSLITERATION
 * This switch turns off transliteration.
 *
 * @stable ICU 2.4
 */
#ifndef UCONFIG_NO_TRANSLITERATION
#   define UCONFIG_NO_TRANSLITERATION 0
#endif

/**
 * \def UCONFIG_NO_REGULAR_EXPRESSIONS
 * This switch turns off regular expressions.
 *
 * @stable ICU 2.4
 */
#ifndef UCONFIG_NO_REGULAR_EXPRESSIONS
#   define UCONFIG_NO_REGULAR_EXPRESSIONS 0
#endif

/**
 * \def UCONFIG_NO_SERVICE
 * This switch turns off service registration.
 *
 * @stable ICU 3.2
 */
#ifndef UCONFIG_NO_SERVICE
#   define UCONFIG_NO_SERVICE 1
#endif

/**
 * \def UCONFIG_HAVE_PARSEALLINPUT
 * This switch turns on the "parse all input" attribute. Binary incompatible.
 *
 * @internal
 */
#ifndef UCONFIG_HAVE_PARSEALLINPUT
#   define UCONFIG_HAVE_PARSEALLINPUT 1
#endif


/**
 * \def UCONFIG_FORMAT_FASTPATHS_49
 * This switch turns on other formatting fastpaths. Binary incompatible in object DecimalFormat and DecimalFormatSymbols
 *
 * @internal
 */
#ifndef UCONFIG_FORMAT_FASTPATHS_49
#   define UCONFIG_FORMAT_FASTPATHS_49 1
#endif

/**
 * \def UCONFIG_NO_FILTERED_BREAK_ITERATION
 * This switch turns off filtered break iteration code.
 *
 * @internal
 */
#ifndef UCONFIG_NO_FILTERED_BREAK_ITERATION
#   define UCONFIG_NO_FILTERED_BREAK_ITERATION 0
#endif

#endif
Commit	Line	Data
f3c0d7a5 A	1	// © 2016 and later: Unicode, Inc. and others.
f3c0d7a5 A	2	// License & terms of use: http://www.unicode.org/copyright.html
b75a7d8f A	3	/*
b75a7d8f A	4	**********************************************************************
2ca993e8	5	* Copyright (C) 2002-2016, International Business Machines
b75a7d8f A	6	* Corporation and others. All Rights Reserved.
	7	**********************************************************************
	8	* file name: uconfig.h
f3c0d7a5	9	* encoding: UTF-8
b75a7d8f A	10	* tab size: 8 (not used)
	11	* indentation:4
	12	*
	13	* created on: 2002sep19
	14	* created by: Markus W. Scherer
	15	*/
	16
	17	#ifndef __UCONFIG_H__
	18	#define __UCONFIG_H__
	19
46f4442e	20
b75a7d8f A	21	/*!
b75a7d8f A	22	* \file
4388f060	23	* \brief User-configurable settings
b75a7d8f	24	*
4388f060 A	25	* Miscellaneous switches:
	26	*
	27	* A number of macros affect a variety of minor aspects of ICU.
	28	* Most of them used to be defined elsewhere (e.g., in utypes.h or platform.h)
	29	* and moved here to make them easier to find.
	30	*
	31	* Switches for excluding parts of ICU library code modules:
	32	*
	33	* Changing these macros allows building partial, smaller libraries for special purposes.
b75a7d8f A	34	* By default, all modules are built.
	35	* The switches are fairly coarse, controlling large modules.
	36	* Basic services cannot be turned off.
	37	*
73c04bcf A	38	* Building with any of these options does not guarantee that the
	39	* ICU build process will completely work. It is recommended that
	40	* the ICU libraries and data be built using the normal build.
	41	* At that time you should remove the data used by those services.
	42	* After building the ICU data library, you should rebuild the ICU
	43	* libraries with these switches customized to your needs.
	44	*
374ca955	45	* @stable ICU 2.4
b75a7d8f A	46	*/
b75a7d8f A	47
46f4442e	48	/**
46f4442e A	49	* If this switch is defined, ICU will attempt to load a header file named "uconfig_local.h"
46f4442e A	50	* prior to determining default settings for uconfig variables.
4388f060	51	*
46f4442e	52	* @internal ICU 4.0
46f4442e A	53	*/
	54	#if defined(UCONFIG_USE_LOCAL)
	55	#include "uconfig_local.h"
	56	#endif
	57
4388f060 A	58	/**
	59	* \def U_DEBUG
	60	* Determines whether to include debugging code.
	61	* Automatically set on Windows, but most compilers do not have
	62	* related predefined macros.
	63	* @internal
	64	*/
	65	#ifdef U_DEBUG
	66	/* Use the predefined value. */
	67	#elif defined(_DEBUG)
	68	/*
	69	* _DEBUG is defined by Visual Studio debug compilation.
	70	* Do not test for its NDEBUG macro: It is an orthogonal macro
	71	* which disables assert().
	72	*/
	73	# define U_DEBUG 1
	74	# else
	75	# define U_DEBUG 0
	76	#endif
	77
	78	/**
	79	* Determines wheter to enable auto cleanup of libraries.
	80	* @internal
	81	*/
	82	#ifndef UCLN_NO_AUTO_CLEANUP
	83	#define UCLN_NO_AUTO_CLEANUP 1
	84	#endif
	85
4388f060 A	86	/**
	87	* \def U_DISABLE_RENAMING
	88	* Determines whether to disable renaming or not.
	89	* @internal
	90	*/
	91	#ifndef U_DISABLE_RENAMING
2ca993e8	92	#define U_DISABLE_RENAMING 1
4388f060 A	93	#endif
	94
	95	/**
	96	* \def U_NO_DEFAULT_INCLUDE_UTF_HEADERS
	97	* Determines whether utypes.h includes utf.h, utf8.h, utf16.h and utf_old.h.
	98	* utypes.h includes those headers if this macro is defined to 0.
	99	* Otherwise, each those headers must be included explicitly when using one of their macros.
	100	* Defaults to 0 for backward compatibility, except inside ICU.
51004dcb	101	* @stable ICU 49
4388f060 A	102	*/
	103	#ifdef U_NO_DEFAULT_INCLUDE_UTF_HEADERS
	104	/* Use the predefined value. */
	105	#elif defined(U_COMBINED_IMPLEMENTATION) \|\| defined(U_COMMON_IMPLEMENTATION) \|\| defined(U_I18N_IMPLEMENTATION) \|\| \
	106	defined(U_IO_IMPLEMENTATION) \|\| defined(U_LAYOUT_IMPLEMENTATION) \|\| defined(U_LAYOUTEX_IMPLEMENTATION) \|\| \
	107	defined(U_TOOLUTIL_IMPLEMENTATION)
	108	# define U_NO_DEFAULT_INCLUDE_UTF_HEADERS 1
	109	#else
	110	# define U_NO_DEFAULT_INCLUDE_UTF_HEADERS 0
	111	#endif
	112
	113	/**
	114	* \def U_OVERRIDE_CXX_ALLOCATION
	115	* Determines whether to override new and delete.
	116	* ICU is normally built such that all of its C++ classes, via their UMemory base,
	117	* override operators new and delete to use its internal, customizable,
	118	* non-exception-throwing memory allocation functions. (Default value 1 for this macro.)
	119	*
	120	* This is especially important when the application and its libraries use multiple heaps.
	121	* For example, on Windows, this allows the ICU DLL to be used by
	122	* applications that statically link the C Runtime library.
	123	*
	124	* @stable ICU 2.2
	125	*/
	126	#ifndef U_OVERRIDE_CXX_ALLOCATION
	127	#define U_OVERRIDE_CXX_ALLOCATION 1
	128	#endif
	129
	130	/**
	131	* \def U_ENABLE_TRACING
	132	* Determines whether to enable tracing.
	133	* @internal
	134	*/
	135	#ifndef U_ENABLE_TRACING
	136	#define U_ENABLE_TRACING 0
	137	#endif
	138
2ca993e8 A	139	/**
	140	* \def UCONFIG_ENABLE_PLUGINS
	141	* Determines whether to enable ICU plugins.
	142	* @internal
	143	*/
	144	#ifndef UCONFIG_ENABLE_PLUGINS
	145	#define UCONFIG_ENABLE_PLUGINS 0
	146	#endif
	147
4388f060 A	148	/**
	149	* \def U_ENABLE_DYLOAD
	150	* Whether to enable Dynamic loading in ICU.
	151	* @internal
	152	*/
	153	#ifndef U_ENABLE_DYLOAD
	154	#define U_ENABLE_DYLOAD 1
	155	#endif
	156
	157	/**
	158	* \def U_CHECK_DYLOAD
	159	* Whether to test Dynamic loading as an OS capability.
	160	* @internal
	161	*/
	162	#ifndef U_CHECK_DYLOAD
	163	#define U_CHECK_DYLOAD 1
	164	#endif
	165
4388f060 A	166	/**
	167	* \def U_DEFAULT_SHOW_DRAFT
	168	* Do we allow ICU users to use the draft APIs by default?
	169	* @internal
	170	*/
	171	#ifndef U_DEFAULT_SHOW_DRAFT
	172	#define U_DEFAULT_SHOW_DRAFT 1
	173	#endif
	174
	175	/===========================================================================/
	176	/* Custom icu entry point renaming */
	177	/===========================================================================/
	178
	179	/**
	180	* \def U_HAVE_LIB_SUFFIX
	181	* 1 if a custom library suffix is set.
	182	* @internal
	183	*/
	184	#ifdef U_HAVE_LIB_SUFFIX
	185	/* Use the predefined value. */
	186	#elif defined(U_LIB_SUFFIX_C_NAME)
	187	# define U_HAVE_LIB_SUFFIX 1
	188	#endif
	189
	190	/**
	191	* \def U_LIB_SUFFIX_C_NAME_STRING
	192	* Defines the library suffix as a string with C syntax.
	193	* @internal
	194	*/
	195	#ifdef U_LIB_SUFFIX_C_NAME_STRING
	196	/* Use the predefined value. */
	197	#elif defined(U_LIB_SUFFIX_C_NAME)
57a6839d A	198	# define CONVERT_TO_STRING(s) #s
57a6839d A	199	# define U_LIB_SUFFIX_C_NAME_STRING CONVERT_TO_STRING(U_LIB_SUFFIX_C_NAME)
4388f060 A	200	#else
	201	# define U_LIB_SUFFIX_C_NAME_STRING ""
	202	#endif
	203
	204	/* common/i18n library switches --------------------------------------------- */
	205
b75a7d8f A	206	/**
	207	* \def UCONFIG_ONLY_COLLATION
	208	* This switch turns off modules that are not needed for collation.
	209	*
	210	* It does not turn off legacy conversion because that is necessary
	211	* for ICU to work on EBCDIC platforms (for the default converter).
	212	* If you want "only collation" and do not build for EBCDIC,
b331163b	213	* then you can define UCONFIG_NO_CONVERSION or UCONFIG_NO_LEGACY_CONVERSION to 1 as well.
b75a7d8f	214	*
374ca955	215	* @stable ICU 2.4
b75a7d8f A	216	*/
	217	#ifndef UCONFIG_ONLY_COLLATION
	218	# define UCONFIG_ONLY_COLLATION 0
	219	#endif
	220
	221	#if UCONFIG_ONLY_COLLATION
	222	/* common library */
	223	# define UCONFIG_NO_BREAK_ITERATION 1
	224	# define UCONFIG_NO_IDNA 1
	225
	226	/* i18n library */
	227	# if UCONFIG_NO_COLLATION
	228	# error Contradictory collation switches in uconfig.h.
	229	# endif
	230	# define UCONFIG_NO_FORMATTING 1
	231	# define UCONFIG_NO_TRANSLITERATION 1
	232	# define UCONFIG_NO_REGULAR_EXPRESSIONS 1
	233	#endif
	234
	235	/* common library switches -------------------------------------------------- */
	236
73c04bcf A	237	/**
	238	* \def UCONFIG_NO_FILE_IO
	239	* This switch turns off all file access in the common library
	240	* where file access is only used for data loading.
	241	* ICU data must then be provided in the form of a data DLL (or with an
	242	* equivalent way to link to the data residing in an executable,
	243	* as in building a combined library with both the common library's code and
	244	* the data), or via udata_setCommonData().
	245	* Application data must be provided via udata_setAppData() or by using
	246	* "open" functions that take pointers to data, for example ucol_openBinary().
	247	*
	248	* File access is not used at all in the i18n library.
	249	*
	250	* File access cannot be turned off for the icuio library or for the ICU
	251	* test suites and ICU tools.
	252	*
46f4442e	253	* @stable ICU 3.6
73c04bcf A	254	*/
	255	#ifndef UCONFIG_NO_FILE_IO
	256	# define UCONFIG_NO_FILE_IO 0
	257	#endif
	258
b331163b A	259	#if UCONFIG_NO_FILE_IO && defined(U_TIMEZONE_FILES_DIR)
	260	# error Contradictory file io switches in uconfig.h.
	261	#endif
	262
374ca955 A	263	/**
	264	* \def UCONFIG_NO_CONVERSION
	265	* ICU will not completely build with this switch turned on.
	266	* This switch turns off all converters.
	267	*
729e4ab9 A	268	* You may want to use this together with U_CHARSET_IS_UTF8 defined to 1
	269	* in utypes.h if char* strings in your environment are always in UTF-8.
	270	*
73c04bcf	271	* @stable ICU 3.2
729e4ab9	272	* @see U_CHARSET_IS_UTF8
374ca955 A	273	*/
	274	#ifndef UCONFIG_NO_CONVERSION
	275	# define UCONFIG_NO_CONVERSION 0
	276	#endif
	277
	278	#if UCONFIG_NO_CONVERSION
	279	# define UCONFIG_NO_LEGACY_CONVERSION 1
	280	#endif
	281
b331163b A	282	/**
	283	* \def UCONFIG_ONLY_HTML_CONVERSION
	284	* This switch turns off all of the converters NOT listed in
	285	* the HTML encoding standard:
	286	* http://www.w3.org/TR/encoding/#names-and-labels
	287	*
	288	* This is not possible on EBCDIC platforms
	289	* because they need ibm-37 or ibm-1047 default converters.
	290	*
2ca993e8	291	* @stable ICU 55
b331163b A	292	*/
	293	#ifndef UCONFIG_ONLY_HTML_CONVERSION
	294	# define UCONFIG_ONLY_HTML_CONVERSION 0
	295	#endif
	296
b75a7d8f A	297	/**
	298	* \def UCONFIG_NO_LEGACY_CONVERSION
	299	* This switch turns off all converters except for
	300	* - Unicode charsets (UTF-7/8/16/32, CESU-8, SCSU, BOCU-1)
	301	* - US-ASCII
	302	* - ISO-8859-1
	303	*
	304	* Turning off legacy conversion is not possible on EBCDIC platforms
	305	* because they need ibm-37 or ibm-1047 default converters.
	306	*
374ca955	307	* @stable ICU 2.4
b75a7d8f A	308	*/
	309	#ifndef UCONFIG_NO_LEGACY_CONVERSION
	310	# define UCONFIG_NO_LEGACY_CONVERSION 0
	311	#endif
	312
	313	/**
	314	* \def UCONFIG_NO_NORMALIZATION
	315	* This switch turns off normalization.
	316	* It implies turning off several other services as well, for example
	317	* collation and IDNA.
	318	*
374ca955	319	* @stable ICU 2.6
b75a7d8f A	320	*/
	321	#ifndef UCONFIG_NO_NORMALIZATION
	322	# define UCONFIG_NO_NORMALIZATION 0
	323	#elif UCONFIG_NO_NORMALIZATION
	324	/* common library */
51004dcb A	325	/* ICU 50 CJK dictionary BreakIterator uses normalization */
	326	# define UCONFIG_NO_BREAK_ITERATION 1
	327	/* IDNA (UTS #46) is implemented via normalization */
b75a7d8f A	328	# define UCONFIG_NO_IDNA 1
	329
	330	/* i18n library */
	331	# if UCONFIG_ONLY_COLLATION
	332	# error Contradictory collation switches in uconfig.h.
	333	# endif
	334	# define UCONFIG_NO_COLLATION 1
	335	# define UCONFIG_NO_TRANSLITERATION 1
	336	#endif
	337
	338	/**
	339	* \def UCONFIG_NO_BREAK_ITERATION
	340	* This switch turns off break iteration.
	341	*
374ca955	342	* @stable ICU 2.4
b75a7d8f A	343	*/
	344	#ifndef UCONFIG_NO_BREAK_ITERATION
	345	# define UCONFIG_NO_BREAK_ITERATION 0
	346	#endif
	347
	348	/**
	349	* \def UCONFIG_NO_IDNA
	350	* This switch turns off IDNA.
	351	*
374ca955	352	* @stable ICU 2.6
b75a7d8f A	353	*/
	354	#ifndef UCONFIG_NO_IDNA
	355	# define UCONFIG_NO_IDNA 0
	356	#endif
	357
4388f060 A	358	/**
	359	* \def UCONFIG_MSGPAT_DEFAULT_APOSTROPHE_MODE
	360	* Determines the default UMessagePatternApostropheMode.
	361	* See the documentation for that enum.
	362	*
	363	* @stable ICU 4.8
	364	*/
	365	#ifndef UCONFIG_MSGPAT_DEFAULT_APOSTROPHE_MODE
	366	# define UCONFIG_MSGPAT_DEFAULT_APOSTROPHE_MODE UMSGPAT_APOS_DOUBLE_OPTIONAL
	367	#endif
	368
b75a7d8f A	369	/* i18n library switches ---------------------------------------------------- */
	370
	371	/**
374ca955	372	* \def UCONFIG_NO_COLLATION
b75a7d8f A	373	* This switch turns off collation and collation-based string search.
b75a7d8f A	374	*
374ca955	375	* @stable ICU 2.4
b75a7d8f A	376	*/
	377	#ifndef UCONFIG_NO_COLLATION
	378	# define UCONFIG_NO_COLLATION 0
	379	#endif
	380
	381	/**
	382	* \def UCONFIG_NO_FORMATTING
	383	* This switch turns off formatting and calendar/timezone services.
	384	*
374ca955	385	* @stable ICU 2.4
b75a7d8f A	386	*/
	387	#ifndef UCONFIG_NO_FORMATTING
	388	# define UCONFIG_NO_FORMATTING 0
	389	#endif
	390
	391	/**
	392	* \def UCONFIG_NO_TRANSLITERATION
	393	* This switch turns off transliteration.
	394	*
374ca955	395	* @stable ICU 2.4
b75a7d8f A	396	*/
	397	#ifndef UCONFIG_NO_TRANSLITERATION
	398	# define UCONFIG_NO_TRANSLITERATION 0
	399	#endif
	400
	401	/**
	402	* \def UCONFIG_NO_REGULAR_EXPRESSIONS
	403	* This switch turns off regular expressions.
	404	*
374ca955	405	* @stable ICU 2.4
b75a7d8f A	406	*/
	407	#ifndef UCONFIG_NO_REGULAR_EXPRESSIONS
	408	# define UCONFIG_NO_REGULAR_EXPRESSIONS 0
	409	#endif
	410
374ca955 A	411	/**
	412	* \def UCONFIG_NO_SERVICE
	413	* This switch turns off service registration.
	414	*
73c04bcf	415	* @stable ICU 3.2
374ca955 A	416	*/
374ca955 A	417	#ifndef UCONFIG_NO_SERVICE
2ca993e8	418	# define UCONFIG_NO_SERVICE 1
374ca955	419	#endif
b75a7d8f	420
51004dcb A	421	/**
	422	* \def UCONFIG_HAVE_PARSEALLINPUT
	423	* This switch turns on the "parse all input" attribute. Binary incompatible.
	424	*
	425	* @internal
	426	*/
	427	#ifndef UCONFIG_HAVE_PARSEALLINPUT
	428	# define UCONFIG_HAVE_PARSEALLINPUT 1
	429	#endif
	430
	431
	432	/**
	433	* \def UCONFIG_FORMAT_FASTPATHS_49
	434	* This switch turns on other formatting fastpaths. Binary incompatible in object DecimalFormat and DecimalFormatSymbols
	435	*
	436	* @internal
	437	*/
	438	#ifndef UCONFIG_FORMAT_FASTPATHS_49
	439	# define UCONFIG_FORMAT_FASTPATHS_49 1
	440	#endif
	441
57a6839d A	442	/**
	443	* \def UCONFIG_NO_FILTERED_BREAK_ITERATION
	444	* This switch turns off filtered break iteration code.
	445	*
	446	* @internal
	447	*/
	448	#ifndef UCONFIG_NO_FILTERED_BREAK_ITERATION
b331163b	449	# define UCONFIG_NO_FILTERED_BREAK_ITERATION 0
57a6839d A	450	#endif
57a6839d A	451
b75a7d8f	452	#endif