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📁 ..	-	2025-05-25 12:36
📄 Makefile # Copyright (C) 2016 and later: Unicode, Inc. and others. # License & terms of use: http://www.unicode.org/copyright.html # # Copyright (c) 2000-2003 IBM, Inc. and others # sample code makefile # Usage: # - configure, build, install ICU (make install) # - make sure "icu-config" (in the ICU installed bin directory) is on # the path # - do 'make' in this directory #### definitions # Name of your target TARGET=translit # All object files (C or C++) OBJECTS=main.o unaccent.o util.o #### rules # Load in standard makefile definitions include ../defs.mk # the actual rules (this is a simple sample) include ../rules.mk	630 B	2022-04-07 22:41
📄 README.TXT Copyright (C) 2016 and later: Unicode, Inc. and others. License & terms of use: http://www.unicode.org/copyright.html Copyright (c) 2002-2010, International Business Machines Corporation and others. All Rights Reserved. IMPORTANT: This sample was originally intended as an exercise for the ICU Workshop (September 2000). The code currently provided in the solution file is the answer to the exercises, each step can still be found in the 'answers' subdirectory. http://www.icu-project.org/docs/workshop_2000/agenda.html Day 2: September 12th 2000 Pre-requisite: 1. All the hardware and software requirements from Day 1. 2. Attended or fully understand Day 1 material. 3. Read through the ICU user's guide at https://unicode-org.github.io/icu/userguide/. #Transformation Support 10:45am - 12:00pm Alan Liu Topics: 1. What is the Unicode normalization? 2. What kind of case mapping support is available in ICU? 3. What is Transliteration and how do I use a Transliterator on a document? 4. How do I add my own Transliterator? INSTRUCTIONS ------------ This exercise was developed and tested on ICU release 1.6.0, Win32, Microsoft Visual C++ 6.0. It should work on other ICU releases and other platforms as well. MSVC: Open the file "translit.sln" in Microsoft Visual C++. Unix: - Build and install ICU with a prefix, for example '--prefix=/home/srl/ICU' - Set the variable ICU_PREFIX=/home/srl/ICU and use GNU make in this directory. - You may use 'make check' to invoke this sample. PROBLEMS -------- Problem 0: To start with, the program prints out a series of dates formatted in Greek. Set up the program, build it, and run it. Problem 1: Basic Transliterator (Easy) The Greek text shows up almost entirely as Unicode escapes. These are unreadable on a US machine. Use an existing system transliterator to transliterate the Greek text to Latin so it can be phonetically read on a US machine. If you don't know the names of the system transliterators, use Transliterator::getAvailableID() and Transliterator::countAvailableIDs(), or look directly in the index table icu/data/translit_index.txt. Problem 2: RuleBasedTransliterator (Medium) Some of the text is still unreadable and shows up as Unicode escape sequences. Create a RuleBasedTransliterator to change the unreadable characters to close ASCII equivalents. For example, the rule "\u00C0 > A;" will change an 'A' with a grave accent to a plain 'A'. To save typing, use UnicodeSets to handle ranges of characters. See the included file "U0080.pdf" for a table of the U+00C0 to U+00FF Unicode block. Problem 3: Transliterator subclassing; Normalizer (Difficult) The rule-based approach is flexible and, in most cases, the best choice for creating a new transliterator. Sometimes, however, a more elegant algorithmic solution is available. Instead of typing in a list of rules, you can write C++ code to accomplish the desired transliteration. Use a Normalizer to remove accents from characters. You will need to convert each character to a sequence of base and combining characters by applying a canonical denormalization transformation. Then discard the combining characters (the accents etc.) leaving the base character. Wrap this all up in a subclass of the Transliterator class that overrides the pure virtual handleTransliterate() method. ANSWERS ------- The exercise includes answers. These are in the "answers" directory, and are numbered 1, 2, etc. In some cases new files that the user needs to create are included in the answers directory. If you get stuck and you want to move to the next step, copy the answers file into the main directory in order to proceed. E.g., "main_1.cpp" contains the original "main.cpp" file. "main_2.cpp" contains the "main.cpp" file after problem 1. Etc. Have fun!	3.83 KB	2022-04-07 22:41
📁 answers	-	2025-05-25 12:36
📄 main.cpp /*********************************************************************** * © 2016 and later: Unicode, Inc. and others. * License & terms of use: http://www.unicode.org/copyright.html ********************************************************************* ********************************************************************* * COPYRIGHT: * Copyright (c) 1999-2003, International Business Machines Corporation and * others. All Rights Reserved. *********************************************************************/ #include "unicode/translit.h" //#include "unicode/rbt.h" #include "unicode/unistr.h" #include "unicode/calendar.h" #include "unicode/datefmt.h" #include <stdio.h> #include <stdlib.h> #include "util.h" #include "unaccent.h" // RuleBasedTransliterator rules to remove accents from characters // so they can be displayed as ASCIIx UnicodeString UNACCENT_RULES( "[\\u00C0-\\u00C5] > A;" "[\\u00C8-\\u00CB] > E;" "[\\u00CC-\\u00CF] > I;" "[\\u00E0-\\u00E5] > a;" "[\\u00E8-\\u00EB] > e;" "[\\u00EC-\\u00EF] > i;" ); int main(int argc, char argv) { Calendar cal; DateFormat fmt; DateFormat defFmt; Transliterator greek_latin; Transliterator rbtUnaccent; Transliterator unaccent; UParseError pError; UErrorCode status = U_ZERO_ERROR; Locale greece("el", "GR"); UnicodeString str, str2; // Create a calendar in the Greek locale cal = Calendar::createInstance(greece, status); check(status, "Calendar::createInstance"); // Create a formatter fmt = DateFormat::createDateInstance(DateFormat::kFull, greece); fmt->setCalendar(cal); // Create a default formatter defFmt = DateFormat::createDateInstance(DateFormat::kFull); defFmt->setCalendar(cal); // Create a Greek-Latin Transliterator greek_latin = Transliterator::createInstance("Greek-Latin", UTRANS_FORWARD, status); if (greek_latin == 0) { printf("ERROR: Transliterator::createInstance() failed\n"); exit(1); } // Create a custom Transliterator rbtUnaccent = Transliterator::createFromRules("RBTUnaccent", UNACCENT_RULES, UTRANS_FORWARD, pError, status); check(status, "Transliterator::createFromRules"); // Create a custom Transliterator unaccent = new UnaccentTransliterator(); // Loop over various months for (int32_t month = Calendar::JANUARY; month <= Calendar::DECEMBER; ++month) { // Set the calendar to a date cal->clear(); cal->set(1999, month, 4); // Format the date in default locale str.remove(); defFmt->format(cal->getTime(status), str, status); check(status, "DateFormat::format"); printf("Date: "); uprintf(escape(str)); printf("\n"); // Format the date for Greece str.remove(); fmt->format(cal->getTime(status), str, status); check(status, "DateFormat::format"); printf("Greek formatted date: "); uprintf(escape(str)); printf("\n"); // Transliterate result greek_latin->transliterate(str); printf("Transliterated via Greek-Latin: "); uprintf(escape(str)); printf("\n"); // Transliterate result str2 = str; rbtUnaccent->transliterate(str); printf("Transliterated via RBT unaccent: "); uprintf(escape(str)); printf("\n"); unaccent->transliterate(str2); printf("Transliterated via normalizer unaccent: "); uprintf(escape(str2)); printf("\n\n"); } // Clean up delete fmt; delete cal; delete greek_latin; delete unaccent; delete rbtUnaccent; printf("Exiting successfully\n"); return 0; }	3.91 KB	2022-04-07 22:41
📄 translit.sln Microsoft Visual Studio Solution File, Format Version 11.00 # Visual Studio 2010 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "translit", "translit.vcxproj", "{D1BEC124-303A-4F44-BA70-55769B8FE96A}" EndProject Global GlobalSection(SolutionConfigurationPlatforms) = preSolution Debug\|Win32 = Debug\|Win32 Debug\|x64 = Debug\|x64 Release\|Win32 = Release\|Win32 Release\|x64 = Release\|x64 EndGlobalSection GlobalSection(ProjectConfigurationPlatforms) = postSolution {D1BEC124-303A-4F44-BA70-55769B8FE96A}.Debug\|Win32.ActiveCfg = Debug\|Win32 {D1BEC124-303A-4F44-BA70-55769B8FE96A}.Debug\|Win32.Build.0 = Debug\|Win32 {D1BEC124-303A-4F44-BA70-55769B8FE96A}.Debug\|x64.ActiveCfg = Debug\|x64 {D1BEC124-303A-4F44-BA70-55769B8FE96A}.Debug\|x64.Build.0 = Debug\|x64 {D1BEC124-303A-4F44-BA70-55769B8FE96A}.Release\|Win32.ActiveCfg = Release\|Win32 {D1BEC124-303A-4F44-BA70-55769B8FE96A}.Release\|Win32.Build.0 = Release\|Win32 {D1BEC124-303A-4F44-BA70-55769B8FE96A}.Release\|x64.ActiveCfg = Release\|x64 {D1BEC124-303A-4F44-BA70-55769B8FE96A}.Release\|x64.Build.0 = Release\|x64 EndGlobalSection GlobalSection(SolutionProperties) = preSolution HideSolutionNode = FALSE EndGlobalSection EndGlobal	1.18 KB	2022-04-07 22:41
📄 translit.vcxproj <?xml version="1.0" encoding="utf-8"?> <Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> <PropertyGroup Label="Globals"> <ProjectGuid>{D1BEC124-303A-4F44-BA70-55769B8FE96A}</ProjectGuid> </PropertyGroup> <PropertyGroup Label="Configuration"> <ConfigurationType>Application</ConfigurationType> <UseOfMfc>false</UseOfMfc> <CharacterSet>MultiByte</CharacterSet> </PropertyGroup> <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" /> <!-- The following import will include the 'default' configuration options for VS projects. --> <Import Project="..\..\allinone\Build.Windows.ProjectConfiguration.props" /> <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" /> <ImportGroup Label="ExtensionSettings"> </ImportGroup> <PropertyGroup Label="UserMacros" /> <PropertyGroup> <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion> <OutDir 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<TypeLibraryName>.\x86\Release/translit.tlb</TypeLibraryName> </Midl> <ClCompile> <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion> <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary> <FunctionLevelLinking>true</FunctionLevelLinking> <PrecompiledHeader> </PrecompiledHeader> <PrecompiledHeaderOutputFile>.\x86\Release/translit.pch</PrecompiledHeaderOutputFile> <AssemblerListingLocation>.\x86\Release/</AssemblerListingLocation> <ObjectFileName>.\x86\Release/</ObjectFileName> <ProgramDataBaseFileName>.\x86\Release/</ProgramDataBaseFileName> <CompileAs>Default</CompileAs> </ClCompile> <Link> <AdditionalDependencies>icuuc.lib;icuin.lib;%(AdditionalDependencies)</AdditionalDependencies> <OutputFile>.\x86\Release/translit.exe</OutputFile> <AdditionalLibraryDirectories>..\..\..\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories> <ProgramDatabaseFile>.\x86\Release/translit.pdb</ProgramDatabaseFile> <SubSystem>Console</SubSystem> <DataExecutionPrevention> </DataExecutionPrevention> </Link> </ItemDefinitionGroup> <ItemDefinitionGroup Condition="'$(Configuration)\|$(Platform)'=='Release\|x64'"> <Midl> <TypeLibraryName>.\x64\Release/translit.tlb</TypeLibraryName> </Midl> <ClCompile> <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion> <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary> <FunctionLevelLinking>true</FunctionLevelLinking> <PrecompiledHeader> </PrecompiledHeader> <PrecompiledHeaderOutputFile>.\x64\Release/translit.pch</PrecompiledHeaderOutputFile> <AssemblerListingLocation>.\x64\Release/</AssemblerListingLocation> <ObjectFileName>.\x64\Release/</ObjectFileName> <ProgramDataBaseFileName>.\x64\Release/</ProgramDataBaseFileName> <CompileAs>Default</CompileAs> </ClCompile> <Link> <AdditionalDependencies>icuuc.lib;icuin.lib;%(AdditionalDependencies)</AdditionalDependencies> <OutputFile>.\x64\Release/translit.exe</OutputFile> <AdditionalLibraryDirectories>..\..\..\lib64;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories> <ProgramDatabaseFile>.\x64\Release/translit.pdb</ProgramDatabaseFile> <SubSystem>Console</SubSystem> <DataExecutionPrevention> </DataExecutionPrevention> </Link> </ItemDefinitionGroup> <ItemGroup> <ClCompile Include="main.cpp" /> <ClCompile Include="unaccent.cpp" /> <ClCompile Include="util.cpp" /> </ItemGroup> <ItemGroup> <ClInclude Include="unaccent.h" /> </ItemGroup> <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" /> <ImportGroup Label="ExtensionTargets"> </ImportGroup> </Project>	7.67 KB	2022-04-07 22:41
📄 translit.vcxproj.filters <?xml version="1.0" encoding="utf-8"?> <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> <ItemGroup> <Filter Include="Source Files"> <UniqueIdentifier>{54b54bed-3b7b-4c0c-88b9-c7d168eb2b2f}</UniqueIdentifier> <Extensions>cpp;c;cxx;rc;def;r;odl;idl;hpj;bat</Extensions> </Filter> <Filter Include="Header Files"> <UniqueIdentifier>{1b482e95-f708-45c1-afa7-842defddd5ab}</UniqueIdentifier> <Extensions>h;hpp;hxx;hm;inl</Extensions> </Filter> <Filter Include="Resource Files"> <UniqueIdentifier>{33d7c053-4ff7-4f22-974c-5c36cf13b8f6}</UniqueIdentifier> <Extensions>ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe</Extensions> </Filter> </ItemGroup> <ItemGroup> <ClCompile Include="main.cpp"> <Filter>Source Files</Filter> </ClCompile> <ClCompile Include="unaccent.cpp"> <Filter>Source Files</Filter> </ClCompile> <ClCompile Include="util.cpp"> <Filter>Source Files</Filter> </ClCompile> </ItemGroup> <ItemGroup> <ClInclude Include="unaccent.h"> <Filter>Header Files</Filter> </ClInclude> </ItemGroup> </Project>	1.15 KB	2022-04-07 22:41
📄 unaccent.cpp /********************************************************************** * © 2016 and later: Unicode, Inc. and others. * License & terms of use: http://www.unicode.org/copyright.html ******************************************************************** ******************************************************************** * COPYRIGHT: * Copyright (c) 1999-2003, International Business Machines Corporation and * others. All Rights Reserved. ********************************************************************/ #include "unaccent.h" const char UnaccentTransliterator::fgClassID = 0; / * Constructor / UnaccentTransliterator::UnaccentTransliterator() : normalizer("", UNORM_NFD), Transliterator("Unaccent", 0) { } /* * Destructor / UnaccentTransliterator::~UnaccentTransliterator() { } /* * Remove accents from a character using Normalizer. / UChar UnaccentTransliterator::unaccent(UChar c) const { UnicodeString str(c); UErrorCode status = U_ZERO_ERROR; UnaccentTransliterator t = (UnaccentTransliterator)this; t->normalizer.setText(str, status); if (U_FAILURE(status)) { return c; } return (UChar) t->normalizer.next(); } /* * Implement Transliterator API */ void UnaccentTransliterator::handleTransliterate(Replaceable& text, UTransPosition& index, UBool incremental) const { UnicodeString str("a"); while (index.start < index.limit) { UChar c = text.charAt(index.start); UChar d = unaccent(c); if (c != d) { str.setCharAt(0, d); text.handleReplaceBetween(index.start, index.start+1, str); } index.start++; } }	1.73 KB	2022-04-07 22:41
📄 unaccent.h /*********************************************************************** * © 2016 and later: Unicode, Inc. and others. * License & terms of use: http://www.unicode.org/copyright.html ********************************************************************* ********************************************************************* * COPYRIGHT: * Copyright (c) 1999-2003, International Business Machines Corporation and * others. All Rights Reserved. *********************************************************************/ #include "unicode/translit.h" #include "unicode/normlzr.h" using namespace icu; class UnaccentTransliterator : public Transliterator { public: / * Constructor / UnaccentTransliterator(); /* * Destructor / virtual ~UnaccentTransliterator(); protected: /* * Implement Transliterator API / virtual void handleTransliterate(Replaceable& text, UTransPosition& index, UBool incremental) const; private: /* * Unaccent a single character using normalizer. / UChar unaccent(UChar c) const; Normalizer normalizer; public: /* * Return the class ID for this class. This is useful only for * comparing to a return value from getDynamicClassID(). For example: * <pre> * . Base* polymorphic_pointer = createPolymorphicObject(); * . if (polymorphic_pointer->getDynamicClassID() == * . Derived::getStaticClassID()) ... * </pre> * @return The class ID for all objects of this class. * @stable ICU 2.0 / static inline UClassID getStaticClassID(void) { return (UClassID)&fgClassID; }; /* * Returns a unique class ID <b>polymorphically</b>. This method * is to implement a simple version of RTTI, since not all C++ * compilers support genuine RTTI. Polymorphic operator==() and * clone() methods call this method. * * <p>Concrete subclasses of Transliterator that wish clients to * be able to identify them should implement getDynamicClassID() * and also a static method and data member: * * <pre> * static UClassID getStaticClassID() { return (UClassID)&fgClassID; } * static char fgClassID; * </pre> * * Subclasses that do not implement this method will have a * dynamic class ID of Transliterator::getStatisClassID(). * * @return The class ID for this object. All objects of a given * class have the same class ID. Objects of other classes have * different class IDs. * @stable ICU 2.0 / virtual UClassID getDynamicClassID(void) const { return getStaticClassID(); }; private: /* * Class identifier for subclasses of Transliterator that do not * define their class (anonymous subclasses). */ static const char fgClassID; };	2.89 KB	2022-04-07 22:41
📄 util.cpp /*********************************************************************** * © 2016 and later: Unicode, Inc. and others. * License & terms of use: http://www.unicode.org/copyright.html ********************************************************************* ********************************************************************* * COPYRIGHT: * Copyright (c) 1999-2010, International Business Machines Corporation and * others. All Rights Reserved. **********************************************************************/ #include "unicode/unistr.h" #include <stdio.h> #include <stdlib.h> using namespace icu; // Verify that a UErrorCode is successful; exit(1) if not void check(UErrorCode& status, const char msg) { if (U_FAILURE(status)) { printf("ERROR: %s (%s)\n", u_errorName(status), msg); exit(1); } // printf("Ok: %s\n", msg); } // Append a hex string to the target static UnicodeString& appendHex(uint32_t number, int8_t digits, UnicodeString& target) { static const UnicodeString DIGIT_STRING("0123456789ABCDEF"); while (digits > 0) { target += DIGIT_STRING[(number >> ((--digits) * 4)) & 0xF]; } return target; } // Replace nonprintable characters with unicode escapes UnicodeString escape(const UnicodeString &source) { int32_t i; UnicodeString target; target += "\""; for (i=0; i<source.length(); ++i) { UChar ch = source[i]; if (ch < 0x09 \|\| (ch > 0x0A && ch < 0x20) \|\| ch > 0x7E) { target += "\\u"; appendHex(ch, 4, target); } else { target += ch; } } target += "\""; return target; } // Print the given string to stdout void uprintf(const UnicodeString &str) { char buf = 0; int32_t len = str.length(); // int32_t bufLen = str.extract(0, len, buf); // Preflight / Preflighting seems to be broken now, so assume 1-1 conversion, plus some slop. / int32_t bufLen = len + 16; int32_t actualLen; buf = new char[bufLen + 1]; actualLen = str.extract(0, len, buf/, bufLen*/); // Default codepage conversion buf[actualLen] = 0; printf("%s", buf); delete [] buf; }	2.24 KB	2022-04-07 22:41
📄 util.h /*********************************************************************** * © 2016 and later: Unicode, Inc. and others. * License & terms of use: http://www.unicode.org/copyright.html ********************************************************************* ********************************************************************* * COPYRIGHT: * Copyright (c) 1999-2002, International Business Machines Corporation and * others. All Rights Reserved. **********************************************************************/ #include "unicode/unistr.h" using namespace icu; // Verify that a UErrorCode is successful; exit(1) if not void check(UErrorCode& status, const char msg); // Replace nonprintable characters with unicode escapes UnicodeString escape(const UnicodeString &source); // Print the given string to stdout void uprintf(const UnicodeString &str);	872 B	2022-04-07 22:41

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