Gecko [ www.floatingcartbutton.com ]

Name	Size	Permission	Date
alphaindex.h	26.43 KB	-rw-r--r--	2026-04-09 08:47
appendable.h	8.54 KB	-rw-r--r--	2026-04-09 08:47
basictz.h	9.99 KB	-rw-r--r--	2026-04-09 08:47
brkiter.h	28.52 KB	-rw-r--r--	2026-04-09 08:47
bytestream.h	11.79 KB	-rw-r--r--	2026-04-09 08:47
bytestrie.h	20.83 KB	-rw-r--r--	2026-04-09 08:47
bytestriebuilder.h	7.44 KB	-rw-r--r--	2026-04-09 08:47
calendar.h	110.47 KB	-rw-r--r--	2026-04-09 08:47
caniter.h	7.47 KB	-rw-r--r--	2026-04-09 08:47
casemap.h	25.42 KB	-rw-r--r--	2026-04-09 08:47
char16ptr.h	10.79 KB	-rw-r--r--	2026-04-09 08:47
chariter.h	23.79 KB	-rw-r--r--	2026-04-09 08:47
choicfmt.h	23.99 KB	-rw-r--r--	2026-04-09 08:47
coleitr.h	13.78 KB	-rw-r--r--	2026-04-09 08:47
coll.h	59.5 KB	-rw-r--r--	2026-04-09 08:47
compactdecimalformat.h	6.88 KB	-rw-r--r--	2026-04-09 08:47
curramt.h	3.67 KB	-rw-r--r--	2026-04-09 08:47
currpinf.h	7.3 KB	-rw-r--r--	2026-04-09 08:47
currunit.h	4.02 KB	-rw-r--r--	2026-04-09 08:47
datefmt.h	41.29 KB	-rw-r--r--	2026-04-09 08:47
dbbi.h	1.19 KB	-rw-r--r--	2026-04-09 08:47
dcfmtsym.h	21.27 KB	-rw-r--r--	2026-04-09 08:47
decimfmt.h	87.45 KB	-rw-r--r--	2026-04-09 08:47
displayoptions.h	7.08 KB	-rw-r--r--	2026-04-09 08:47
docmain.h	7.66 KB	-rw-r--r--	2026-04-09 08:47
dtfmtsym.h	41.04 KB	-rw-r--r--	2026-04-09 08:47
dtintrv.h	3.84 KB	-rw-r--r--	2026-04-09 08:47
dtitvfmt.h	49.2 KB	-rw-r--r--	2026-04-09 08:47
dtitvinf.h	18.54 KB	-rw-r--r--	2026-04-09 08:47
dtptngen.h	29.28 KB	-rw-r--r--	2026-04-09 08:47
dtrule.h	8.66 KB	-rw-r--r--	2026-04-09 08:47
edits.h	20.74 KB	-rw-r--r--	2026-04-09 08:47
enumset.h	2.08 KB	-rw-r--r--	2026-04-09 08:47
errorcode.h	4.84 KB	-rw-r--r--	2026-04-09 08:47
fieldpos.h	8.69 KB	-rw-r--r--	2026-04-09 08:47
filteredbrk.h	5.37 KB	-rw-r--r--	2026-04-09 08:47
fmtable.h	24.36 KB	-rw-r--r--	2026-04-09 08:47
format.h	12.78 KB	-rw-r--r--	2026-04-09 08:47
formattednumber.h	6.25 KB	-rw-r--r--	2026-04-09 08:47
formattedvalue.h	9.75 KB	-rw-r--r--	2026-04-09 08:47
fpositer.h	3.03 KB	-rw-r--r--	2026-04-09 08:47
gender.h	3.35 KB	-rw-r--r--	2026-04-09 08:47
gregocal.h	30.05 KB	-rw-r--r--	2026-04-09 08:47
icudataver.h	1.02 KB	-rw-r--r--	2026-04-09 08:47
icuplug.h	12.1 KB	-rw-r--r--	2026-04-09 08:47
idna.h	12.93 KB	-rw-r--r--	2026-04-09 08:47
listformatter.h	8.59 KB	-rw-r--r--	2026-04-09 08:47
localebuilder.h	11.09 KB	-rw-r--r--	2026-04-09 08:47
localematcher.h	26.86 KB	-rw-r--r--	2026-04-09 08:47
localpointer.h	19.52 KB	-rw-r--r--	2026-04-09 08:47
locdspnm.h	7.12 KB	-rw-r--r--	2026-04-09 08:47
locid.h	53.98 KB	-rw-r--r--	2026-04-09 08:47
measfmt.h	11.41 KB	-rw-r--r--	2026-04-09 08:47
measunit.h	133.12 KB	-rw-r--r--	2026-04-09 08:47
measure.h	4.63 KB	-rw-r--r--	2026-04-09 08:47
messageformat2.h	21.59 KB	-rw-r--r--	2026-04-09 08:47
messageformat2_arguments.h	3.84 KB	-rw-r--r--	2026-04-09 08:47
messageformat2_data_model.h	96.61 KB	-rw-r--r--	2026-04-09 08:47
messageformat2_data_model_names.h	784 B	-rw-r--r--	2026-04-09 08:47
messageformat2_formattable.h	39.37 KB	-rw-r--r--	2026-04-09 08:47
messageformat2_function_registry.h	18.07 KB	-rw-r--r--	2026-04-09 08:47
messagepattern.h	33.79 KB	-rw-r--r--	2026-04-09 08:47
msgfmt.h	44.94 KB	-rw-r--r--	2026-04-09 08:47
normalizer2.h	34.68 KB	-rw-r--r--	2026-04-09 08:47
normlzr.h	30.79 KB	-rw-r--r--	2026-04-09 08:47
nounit.h	2.24 KB	-rw-r--r--	2026-04-09 08:47
numberformatter.h	90.72 KB	-rw-r--r--	2026-04-09 08:47
numberrangeformatter.h	25.68 KB	-rw-r--r--	2026-04-09 08:47
numfmt.h	50.16 KB	-rw-r--r--	2026-04-09 08:47
numsys.h	7.22 KB	-rw-r--r--	2026-04-09 08:47
parseerr.h	3.08 KB	-rw-r--r--	2026-04-09 08:47
parsepos.h	5.56 KB	-rw-r--r--	2026-04-09 08:47
platform.h	27.19 KB	-rw-r--r--	2026-04-09 08:47
plurfmt.h	25.46 KB	-rw-r--r--	2026-04-09 08:47
plurrule.h	20.63 KB	-rw-r--r--	2026-04-09 08:47
ptypes.h	2.16 KB	-rw-r--r--	2026-04-09 08:47
putil.h	6.32 KB	-rw-r--r--	2026-04-09 08:47
rbbi.h	31.73 KB	-rw-r--r--	2026-04-09 08:47
rbnf.h	57.19 KB	-rw-r--r--	2026-04-09 08:47
rbtz.h	15.75 KB	-rw-r--r--	2026-04-09 08:47
regex.h	83.83 KB	-rw-r--r--	2026-04-09 08:47
region.h	9.2 KB	-rw-r--r--	2026-04-09 08:47
reldatefmt.h	22.69 KB	-rw-r--r--	2026-04-09 08:47
rep.h	9.38 KB	-rw-r--r--	2026-04-09 08:47
resbund.h	18.02 KB	-rw-r--r--	2026-04-09 08:47
schriter.h	6.09 KB	-rw-r--r--	2026-04-09 08:47
scientificnumberformatter.h	6.44 KB	-rw-r--r--	2026-04-09 08:47
search.h	22.21 KB	-rw-r--r--	2026-04-09 08:47
selfmt.h	14.35 KB	-rw-r--r--	2026-04-09 08:47
simpleformatter.h	12.6 KB	-rw-r--r--	2026-04-09 08:47
simplenumberformatter.h	8.87 KB	-rw-r--r--	2026-04-09 08:47
simpletz.h	45.62 KB	-rw-r--r--	2026-04-09 08:47
smpdtfmt.h	57.57 KB	-rw-r--r--	2026-04-09 08:47
sortkey.h	11.13 KB	-rw-r--r--	2026-04-09 08:47
std_string.h	1.05 KB	-rw-r--r--	2026-04-09 08:47
strenum.h	9.96 KB	-rw-r--r--	2026-04-09 08:47
stringoptions.h	5.79 KB	-rw-r--r--	2026-04-09 08:47
stringpiece.h	10.29 KB	-rw-r--r--	2026-04-09 08:47
stringtriebuilder.h	15.53 KB	-rw-r--r--	2026-04-09 08:47
stsearch.h	21.43 KB	-rw-r--r--	2026-04-09 08:47
symtable.h	4.28 KB	-rw-r--r--	2026-04-09 08:47
tblcoll.h	38.79 KB	-rw-r--r--	2026-04-09 08:47
timezone.h	45.59 KB	-rw-r--r--	2026-04-09 08:47
tmunit.h	3.37 KB	-rw-r--r--	2026-04-09 08:47
tmutamt.h	4.9 KB	-rw-r--r--	2026-04-09 08:47
tmutfmt.h	7.42 KB	-rw-r--r--	2026-04-09 08:47
translit.h	65.81 KB	-rw-r--r--	2026-04-09 08:47
tzfmt.h	44.76 KB	-rw-r--r--	2026-04-09 08:47
tznames.h	16.85 KB	-rw-r--r--	2026-04-09 08:47
tzrule.h	34.81 KB	-rw-r--r--	2026-04-09 08:47
tztrans.h	6.11 KB	-rw-r--r--	2026-04-09 08:47
ubidi.h	89.61 KB	-rw-r--r--	2026-04-09 08:47
ubiditransform.h	12.71 KB	-rw-r--r--	2026-04-09 08:47
ubrk.h	24.43 KB	-rw-r--r--	2026-04-09 08:47
ucal.h	63.95 KB	-rw-r--r--	2026-04-09 08:47
ucasemap.h	15.27 KB	-rw-r--r--	2026-04-09 08:47
ucat.h	5.35 KB	-rw-r--r--	2026-04-09 08:47
uchar.h	152.33 KB	-rw-r--r--	2026-04-09 08:47
ucharstrie.h	22.59 KB	-rw-r--r--	2026-04-09 08:47
ucharstriebuilder.h	7.48 KB	-rw-r--r--	2026-04-09 08:47
uchriter.h	13.24 KB	-rw-r--r--	2026-04-09 08:47
uclean.h	11.21 KB	-rw-r--r--	2026-04-09 08:47
ucnv.h	83.34 KB	-rw-r--r--	2026-04-09 08:47
ucnv_cb.h	6.58 KB	-rw-r--r--	2026-04-09 08:47
ucnv_err.h	20.98 KB	-rw-r--r--	2026-04-09 08:47
ucnvsel.h	6.24 KB	-rw-r--r--	2026-04-09 08:47
ucol.h	67.35 KB	-rw-r--r--	2026-04-09 08:47
ucoleitr.h	9.82 KB	-rw-r--r--	2026-04-09 08:47
uconfig.h	12.56 KB	-rw-r--r--	2026-04-09 08:47
ucpmap.h	5.54 KB	-rw-r--r--	2026-04-09 08:47
ucptrie.h	22.51 KB	-rw-r--r--	2026-04-09 08:47
ucsdet.h	14.69 KB	-rw-r--r--	2026-04-09 08:47
ucurr.h	16.72 KB	-rw-r--r--	2026-04-09 08:47
udat.h	62.66 KB	-rw-r--r--	2026-04-09 08:47
udata.h	15.63 KB	-rw-r--r--	2026-04-09 08:47
udateintervalformat.h	11.93 KB	-rw-r--r--	2026-04-09 08:47
udatpg.h	30.13 KB	-rw-r--r--	2026-04-09 08:47
udisplaycontext.h	5.94 KB	-rw-r--r--	2026-04-09 08:47
udisplayoptions.h	8.86 KB	-rw-r--r--	2026-04-09 08:47
uenum.h	7.79 KB	-rw-r--r--	2026-04-09 08:47
ufieldpositer.h	4.41 KB	-rw-r--r--	2026-04-09 08:47
uformattable.h	10.97 KB	-rw-r--r--	2026-04-09 08:47
uformattednumber.h	8.09 KB	-rw-r--r--	2026-04-09 08:47
uformattedvalue.h	12.25 KB	-rw-r--r--	2026-04-09 08:47
ugender.h	2.06 KB	-rw-r--r--	2026-04-09 08:47
uidna.h	34.12 KB	-rw-r--r--	2026-04-09 08:47
uiter.h	22.75 KB	-rw-r--r--	2026-04-09 08:47
uldnames.h	10.48 KB	-rw-r--r--	2026-04-09 08:47
ulistformatter.h	10.78 KB	-rw-r--r--	2026-04-09 08:47
uloc.h	55.38 KB	-rw-r--r--	2026-04-09 08:47
ulocale.h	6.31 KB	-rw-r--r--	2026-04-09 08:47
ulocbuilder.h	16.69 KB	-rw-r--r--	2026-04-09 08:47
ulocdata.h	11.3 KB	-rw-r--r--	2026-04-09 08:47
umachine.h	15.25 KB	-rw-r--r--	2026-04-09 08:47
umisc.h	1.34 KB	-rw-r--r--	2026-04-09 08:47
umsg.h	24.25 KB	-rw-r--r--	2026-04-09 08:47
umutablecptrie.h	8.3 KB	-rw-r--r--	2026-04-09 08:47
unifilt.h	4 KB	-rw-r--r--	2026-04-09 08:47
unifunct.h	4.05 KB	-rw-r--r--	2026-04-09 08:47
unimatch.h	6.1 KB	-rw-r--r--	2026-04-09 08:47
unirepl.h	3.38 KB	-rw-r--r--	2026-04-09 08:47
uniset.h	70.18 KB	-rw-r--r--	2026-04-09 08:47
unistr.h	184.51 KB	-rw-r--r--	2026-04-09 08:47
unorm.h	20.55 KB	-rw-r--r--	2026-04-09 08:47
unorm2.h	25.66 KB	-rw-r--r--	2026-04-09 08:47
unum.h	55.16 KB	-rw-r--r--	2026-04-09 08:47
unumberformatter.h	19.68 KB	-rw-r--r--	2026-04-09 08:47
unumberoptions.h	5.23 KB	-rw-r--r--	2026-04-09 08:47
unumberrangeformatter.h	15.35 KB	-rw-r--r--	2026-04-09 08:47
unumsys.h	7.26 KB	-rw-r--r--	2026-04-09 08:47
uobject.h	10.6 KB	-rw-r--r--	2026-04-09 08:47
upluralrules.h	8.79 KB	-rw-r--r--	2026-04-09 08:47
uregex.h	71.99 KB	-rw-r--r--	2026-04-09 08:47
uregion.h	9.81 KB	-rw-r--r--	2026-04-09 08:47
ureldatefmt.h	16.98 KB	-rw-r--r--	2026-04-09 08:47
urename.h	142.22 KB	-rw-r--r--	2026-04-09 08:47
urep.h	5.38 KB	-rw-r--r--	2026-04-09 08:47
ures.h	36.65 KB	-rw-r--r--	2026-04-09 08:47
uscript.h	28.95 KB	-rw-r--r--	2026-04-09 08:47
usearch.h	39.21 KB	-rw-r--r--	2026-04-09 08:47
uset.h	63.03 KB	-rw-r--r--	2026-04-09 08:47
usetiter.h	9.63 KB	-rw-r--r--	2026-04-09 08:47
ushape.h	18 KB	-rw-r--r--	2026-04-09 08:47
usimplenumberformatter.h	7.31 KB	-rw-r--r--	2026-04-09 08:47
uspoof.h	80 KB	-rw-r--r--	2026-04-09 08:47
usprep.h	8.19 KB	-rw-r--r--	2026-04-09 08:47
ustdio.h	38.58 KB	-rw-r--r--	2026-04-09 08:47
ustream.h	1.89 KB	-rw-r--r--	2026-04-09 08:47
ustring.h	72.16 KB	-rw-r--r--	2026-04-09 08:47
ustringtrie.h	3.15 KB	-rw-r--r--	2026-04-09 08:47
utext.h	58.1 KB	-rw-r--r--	2026-04-09 08:47
utf.h	8.65 KB	-rw-r--r--	2026-04-09 08:47
utf16.h	23.35 KB	-rw-r--r--	2026-04-09 08:47
utf32.h	763 B	-rw-r--r--	2026-04-09 08:47
utf8.h	31.65 KB	-rw-r--r--	2026-04-09 08:47
utf_old.h	45.85 KB	-rw-r--r--	2026-04-09 08:47
utfiterator.h	95.02 KB	-rw-r--r--	2026-04-09 08:47
utfstring.h	4.89 KB	-rw-r--r--	2026-04-09 08:47
utmscale.h	13.78 KB	-rw-r--r--	2026-04-09 08:47
utrace.h	17.18 KB	-rw-r--r--	2026-04-09 08:47
utrans.h	25.54 KB	-rw-r--r--	2026-04-09 08:47
utypes.h	36.73 KB	-rw-r--r--	2026-04-09 08:47
uvernum.h	6.33 KB	-rw-r--r--	2026-04-09 08:47
uversion.h	8.21 KB	-rw-r--r--	2026-04-09 08:47
vtzone.h	20.68 KB	-rw-r--r--	2026-04-09 08:47

Rename

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
******************************************************************************
*
*   Copyright (C) 2009-2015, International Business Machines
*   Corporation and others.  All Rights Reserved.
*
******************************************************************************
*
*  FILE NAME : icuplug.h
*
*   Date         Name        Description
*   10/29/2009   sl          New.
******************************************************************************
*/

/**
 * \file
 * \brief C API: ICU Plugin API 
 *
 * <h2>C API: ICU Plugin API</h2>
 *
 * <p>C API allowing run-time loadable modules that extend or modify ICU functionality.</p>
 *
 * <h3>Loading and Configuration</h3>
 *
 * <p>At ICU startup time, the environment variable "ICU_PLUGINS" will be 
 * queried for a directory name.  If it is not set, the preprocessor symbol 
 * "DEFAULT_ICU_PLUGINS" will be checked for a default value.</p>
 *
 * <p>Within the above-named directory, the file  "icuplugins##.txt" will be 
 * opened, if present, where ## is the major+minor number of the currently 
 * running ICU (such as, 44 for ICU 4.4, thus icuplugins44.txt)</p>
 *
 * <p>The configuration file has this format:</p>
 *
 * <ul>
 * <li>Hash (#) begins a comment line</li>
 * 
 * <li>Non-comment lines have two or three components:
 * LIBRARYNAME     ENTRYPOINT     [ CONFIGURATION .. ]</li>
 *
 * <li>Tabs or spaces separate the three items.</li>
 *
 * <li>LIBRARYNAME is the name of a shared library, either a short name if 
 * it is on the loader path,  or a full pathname.</li>
 *
 * <li>ENTRYPOINT is the short (undecorated) symbol name of the plugin's 
 * entrypoint, as above.</li>
 *
 * <li>CONFIGURATION is the entire rest of the line . It's passed as-is to 
 * the plugin.</li>
 * </ul>
 *
 * <p>An example configuration file is, in its entirety:</p>
 *
 * \code
 * # this is icuplugins44.txt
 * testplug.dll    myPlugin        hello=world
 * \endcode
 * <p>Plugins are categorized as "high" or "low" level.  Low level are those 
 * which must be run BEFORE high level plugins, and before any operations 
 * which cause ICU to be 'initialized'.  If a plugin is low level but 
 * causes ICU to allocate memory or become initialized, that plugin is said 
 * to cause a 'level change'. </p>
 *
 * <p>At load time, ICU first queries all plugins to determine their level, 
 * then loads all 'low' plugins first, and then loads all 'high' plugins.  
 * Plugins are otherwise loaded in the order listed in the configuration file.</p>
 * 
 * <h3>Implementing a Plugin</h3>
 * \code
 * U_CAPI UPlugTokenReturn U_EXPORT2 
 * myPlugin (UPlugData *plug, UPlugReason reason, UErrorCode *status) {
 *   if(reason==UPLUG_REASON_QUERY) {
 *      uplug_setPlugName(plug, "Simple Plugin");
 *      uplug_setPlugLevel(plug, UPLUG_LEVEL_HIGH);
 *    } else if(reason==UPLUG_REASON_LOAD) {
 *       ... Set up some ICU things here.... 
 *    } else if(reason==UPLUG_REASON_UNLOAD) {
 *       ... unload, clean up ...
 *    }
 *   return UPLUG_TOKEN;
 *  }
 * \endcode
 *
 * <p>The UPlugData*  is an opaque pointer to the plugin-specific data, and is 
 * used in all other API calls.</p>
 *
 * <p>The API contract is:</p>
 * <ol><li>The plugin MUST always return UPLUG_TOKEN as a return value- to 
 * indicate that it is a valid plugin.</li>
 *
 * <li>When the 'reason' parameter is set to UPLUG_REASON_QUERY,  the 
 * plugin MUST call uplug_setPlugLevel() to indicate whether it is a high 
 * level or low level plugin.</li>
 *
 * <li>When the 'reason' parameter is UPLUG_REASON_QUERY, the plugin 
 * SHOULD call uplug_setPlugName to indicate a human readable plugin name.</li></ol>
 * 
 *
 * \internal ICU 4.4 Technology Preview
 */

#ifndef ICUPLUG_H
#define ICUPLUG_H

#include "unicode/utypes.h"

#if UCONFIG_ENABLE_PLUGINS || defined(U_IN_DOXYGEN)

/* === Basic types === */

#ifndef U_HIDE_INTERNAL_API
struct UPlugData;
/**
 * @{
 * Typedef for opaque structure passed to/from a plugin. 
 * Use the APIs to access it.
 * @internal ICU 4.4 Technology Preview
 */
typedef struct UPlugData UPlugData;

/** @} */

/**
 * Random Token to identify a valid ICU plugin. Plugins must return this 
 * from the entrypoint.
 * @internal ICU 4.4 Technology Preview
 */
#define UPLUG_TOKEN 0x54762486

/**
 * Max width of names, symbols, and configuration strings
 * @internal ICU 4.4 Technology Preview
 */
#define UPLUG_NAME_MAX              100

/**
 * Return value from a plugin entrypoint. 
 * Must always be set to UPLUG_TOKEN
 * @see UPLUG_TOKEN
 * @internal ICU 4.4 Technology Preview
 */
typedef uint32_t UPlugTokenReturn;

/**
 * Reason code for the entrypoint's call
 * @internal ICU 4.4 Technology Preview
 */
typedef enum {
    UPLUG_REASON_QUERY = 0,     /**< The plugin is being queried for info. **/
    UPLUG_REASON_LOAD = 1,     /**< The plugin is being loaded. **/
    UPLUG_REASON_UNLOAD = 2,   /**< The plugin is being unloaded. **/
    /**
     * Number of known reasons.
     * @internal The numeric value may change over time, see ICU ticket #12420.
     */
    UPLUG_REASON_COUNT
} UPlugReason;

/**
 * Level of plugin loading
 *     INITIAL:  UNKNOWN
 *       QUERY:   INVALID ->  { LOW | HIGH }
 *     ERR -> INVALID
 * @internal ICU 4.4 Technology Preview
 */
typedef enum {
    UPLUG_LEVEL_INVALID = 0,     /**< The plugin is invalid, hasn't called uplug_setLevel, or can't load. **/
    UPLUG_LEVEL_UNKNOWN = 1,     /**< The plugin is waiting to be installed. **/
    UPLUG_LEVEL_LOW     = 2,     /**< The plugin must be called before u_init completes **/
    UPLUG_LEVEL_HIGH    = 3,     /**< The plugin can run at any time. **/
    /**
     * Number of known levels.
     * @internal The numeric value may change over time, see ICU ticket #12420.
     */
    UPLUG_LEVEL_COUNT
} UPlugLevel;

/**
 * Entrypoint for an ICU plugin.
 * @param plug the UPlugData handle.
 * @param reason the reason code for the entrypoint's call.
 * @param status Standard ICU error code. Its input value must
 *               pass the U_SUCCESS() test, or else the function returns
 *               immediately. Check for U_FAILURE() on output or use with
 *               function chaining. (See User Guide for details.)
 * @return A valid plugin must return UPLUG_TOKEN
 * @internal ICU 4.4 Technology Preview
 */
typedef UPlugTokenReturn (U_EXPORT2 UPlugEntrypoint) (
                  UPlugData *plug,
                  UPlugReason reason,
                  UErrorCode *status);

/* === Needed for Implementing === */

/**
 * Request that this plugin not be unloaded at cleanup time.
 * This is appropriate for plugins which cannot be cleaned up.
 * @see u_cleanup()
 * @param plug plugin
 * @param dontUnload  set true if this plugin can't be unloaded
 * @internal ICU 4.4 Technology Preview
 */
U_CAPI void U_EXPORT2 
uplug_setPlugNoUnload(UPlugData *plug, UBool dontUnload);

/**
 * Set the level of this plugin.
 * @param plug plugin data handle
 * @param level the level of this plugin
 * @internal ICU 4.4 Technology Preview
 */
U_CAPI void U_EXPORT2
uplug_setPlugLevel(UPlugData *plug, UPlugLevel level);

/**
 * Get the level of this plugin.
 * @param plug plugin data handle
 * @return the level of this plugin
 * @internal ICU 4.4 Technology Preview
 */
U_CAPI UPlugLevel U_EXPORT2
uplug_getPlugLevel(UPlugData *plug);

/**
 * Get the lowest level of plug which can currently load.
 * For example, if UPLUG_LEVEL_LOW is returned, then low level plugins may load
 * if UPLUG_LEVEL_HIGH is returned, then only high level plugins may load.
 * @return the lowest level of plug which can currently load
 * @internal ICU 4.4 Technology Preview
 */
U_CAPI UPlugLevel U_EXPORT2
uplug_getCurrentLevel(void);

/**
 * Get plug load status
 * @return The error code of this plugin's load attempt.
 * @internal ICU 4.4 Technology Preview
 */
U_CAPI UErrorCode U_EXPORT2
uplug_getPlugLoadStatus(UPlugData *plug);

/**
 * Set the human-readable name of this plugin.
 * @param plug plugin data handle
 * @param name the name of this plugin. The first UPLUG_NAME_MAX characters willi be copied into a new buffer.
 * @internal ICU 4.4 Technology Preview
 */
U_CAPI void U_EXPORT2
uplug_setPlugName(UPlugData *plug, const char *name);

/**
 * Get the human-readable name of this plugin.
 * @param plug plugin data handle
 * @return the name of this plugin
 * @internal ICU 4.4 Technology Preview
 */
U_CAPI const char * U_EXPORT2
uplug_getPlugName(UPlugData *plug);

/**
 * Return the symbol name for this plugin, if known.
 * @param plug plugin data handle
 * @return the symbol name, or NULL
 * @internal ICU 4.4 Technology Preview
 */
U_CAPI const char * U_EXPORT2
uplug_getSymbolName(UPlugData *plug);

/**
 * Return the library name for this plugin, if known.
 * @param plug plugin data handle
 * @param status error code
 * @return the library name, or NULL
 * @internal ICU 4.4 Technology Preview
 */
U_CAPI const char * U_EXPORT2
uplug_getLibraryName(UPlugData *plug, UErrorCode *status);

/**
 * Return the library used for this plugin, if known.
 * Plugins could use this to load data out of their 
 * @param plug plugin data handle
 * @return the library, or NULL
 * @internal ICU 4.4 Technology Preview
 */
U_CAPI void * U_EXPORT2
uplug_getLibrary(UPlugData *plug);

/**
 * Return the plugin-specific context data.
 * @param plug plugin data handle
 * @return the context, or NULL if not set
 * @internal ICU 4.4 Technology Preview
 */
U_CAPI void * U_EXPORT2
uplug_getContext(UPlugData *plug);

/**
 * Set the plugin-specific context data.
 * @param plug plugin data handle
 * @param context new context to set
 * @internal ICU 4.4 Technology Preview
 */
U_CAPI void U_EXPORT2
uplug_setContext(UPlugData *plug, void *context);

/**
 * Get the configuration string, if available.
 * The string is in the platform default codepage.
 * @param plug plugin data handle
 * @return configuration string, or else null.
 * @internal ICU 4.4 Technology Preview
 */
U_CAPI const char * U_EXPORT2
uplug_getConfiguration(UPlugData *plug);

/**
 * Return all currently installed plugins, from newest to oldest
 * Usage Example:
 * \code
 *    UPlugData *plug = NULL;
 *    while(plug=uplug_nextPlug(plug)) {
 *        ... do something with 'plug' ...
 *    }
 * \endcode
 * Not thread safe- do not call while plugs are added or removed.
 * @param prior pass in 'NULL' to get the first (most recent) plug, 
 *  otherwise pass the value returned on a prior call to uplug_nextPlug
 * @return the next oldest plugin, or NULL if no more.
 * @internal ICU 4.4 Technology Preview
 */
U_CAPI UPlugData* U_EXPORT2
uplug_nextPlug(UPlugData *prior);

/**
 * Inject a plugin as if it were loaded from a library.
 * This is useful for testing plugins. 
 * Note that it will have a 'NULL' library pointer associated
 * with it, and therefore no llibrary will be closed at cleanup time.
 * Low level plugins may not be able to load, as ordering can't be enforced.
 * @param entrypoint entrypoint to install
 * @param config user specified configuration string, if available, or NULL.
 * @param status error result
 * @return the new UPlugData associated with this plugin, or NULL if error.
 * @internal ICU 4.4 Technology Preview
 */
U_CAPI UPlugData* U_EXPORT2
uplug_loadPlugFromEntrypoint(UPlugEntrypoint *entrypoint, const char *config, UErrorCode *status);

/**
 * Inject a plugin from a library, as if the information came from a config file.
 * Low level plugins may not be able to load, and ordering can't be enforced.
 * @param libName DLL name to load
 * @param sym symbol of plugin (UPlugEntrypoint function)
 * @param config configuration string, or NULL
 * @param status error result
 * @return the new UPlugData associated with this plugin, or NULL if error.
 * @internal ICU 4.4 Technology Preview
 */
U_CAPI UPlugData* U_EXPORT2
uplug_loadPlugFromLibrary(const char *libName, const char *sym, const char *config, UErrorCode *status);

/**
 * Remove a plugin. 
 * Will request the plugin to be unloaded, and close the library if needed
 * @param plug plugin handle to close
 * @param status error result
 * @internal ICU 4.4 Technology Preview
 */
U_CAPI void U_EXPORT2
uplug_removePlug(UPlugData *plug, UErrorCode *status);
#endif  /* U_HIDE_INTERNAL_API */

#endif /* UCONFIG_ENABLE_PLUGINS */

#endif /* _ICUPLUG */