Added UTF8-CPP library

This commit is contained in:
Daniel Wolf 2017-08-01 18:19:07 +02:00
parent dd1108b6cd
commit e5c7215cc5
17 changed files with 3119 additions and 0 deletions

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@ -219,6 +219,15 @@ target_include_directories(flite SYSTEM PUBLIC
target_compile_options(flite PRIVATE ${disableWarningsFlags})
set_target_properties(flite PROPERTIES FOLDER lib)
# ... UTF8-CPP
add_library(utfcpp
lib/header-only.c
lib/utfcpp-2.3.5/source/utf8.h
)
target_include_directories(utfcpp SYSTEM PUBLIC "lib/utfcpp-2.3.5/source")
target_compile_options(utfcpp PRIVATE ${disableWarningsFlags})
set_target_properties(utfcpp PROPERTIES FOLDER lib)
# Define Rhubarb libraries
# ... rhubarb-animation

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@ -162,6 +162,18 @@ The [TCLAP](http://tclap.sourceforge.net/) library is released under the **MIT L
>
> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
### `[utfcpp]` UTF8-CPP
The [UTF8-CPP](https://github.com/nemtrif/utfcpp) library is released under the **Boost Software License**.
> Copyright 2006 Nemanja Trifunovic
>
>Permission is hereby granted, free of charge, to any person or organization obtaining a copy of the software and accompanying documentation covered by this license (the "Software") to use, reproduce, display, distribute, execute, and transmit the Software, and to prepare derivative works of the Software, and to permit third-parties to whom the Software is furnished to do so, all subject to the following:
>
> The copyright notices in the Software and this entire statement, including the above license grant, this restriction and the following disclaimer, must be included in all copies of the Software, in whole or in part, and all derivative works of the Software, unless such copies or derivative works are solely in the form of machine-executable object code generated by a source language processor.
>
> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
### `[webrtc]` WebRTC
The [WebRTC](https://chromium.googlesource.com/external/webrtc) library is released under the **3-clause BSD License**.

7
lib/header-only.c Normal file
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/*
This library is header-only.
Due to limitations in CMake, I added this dummy code file.
For details, see http://cmake.3232098.n2.nabble.com/Cannot-set-FOLDER-property-to-an-interface-header-only-target-td7592375.html
*/

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@ -0,0 +1,13 @@
cmake_minimum_required (VERSION 2.8.0)
project (utf8cpp)
include_directories ("${PROJECT_SOURCE_DIR}/source")
add_executable(smoke ${PROJECT_SOURCE_DIR}/test_drivers/smoke_test/test.cpp)
add_executable(negative ${PROJECT_SOURCE_DIR}/test_drivers/negative/negative.cpp)
add_executable(utf8reader ${PROJECT_SOURCE_DIR}/test_drivers/utf8reader/utf8reader.cpp)
add_executable(docsample ${PROJECT_SOURCE_DIR}/samples/docsample.cpp)
enable_testing()
add_test(smoke_test smoke)
add_test(negative_test negative ${PROJECT_SOURCE_DIR}/test_data/negative/utf8_invalid.txt)

1090
lib/utfcpp-2.3.5/README.md Normal file

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@ -0,0 +1,52 @@
#include "../source/utf8.h"
#include <iostream>
#include <fstream>
#include <string>
#include <vector>
using namespace std;
int main(int argc, char** argv)
{
if (argc != 2) {
cout << "\nUsage: docsample filename\n";
return 0;
}
const char* test_file_path = argv[1];
// Open the test file (must be UTF-8 encoded)
ifstream fs8(test_file_path);
if (!fs8.is_open()) {
cout << "Could not open " << test_file_path << endl;
return 0;
}
unsigned line_count = 1;
string line;
// Play with all the lines in the file
while (getline(fs8, line)) {
// check for invalid utf-8 (for a simple yes/no check, there is also utf8::is_valid function)
string::iterator end_it = utf8::find_invalid(line.begin(), line.end());
if (end_it != line.end()) {
cout << "Invalid UTF-8 encoding detected at line " << line_count << "\n";
cout << "This part is fine: " << string(line.begin(), end_it) << "\n";
}
// Get the line length (at least for the valid part)
int length = utf8::distance(line.begin(), end_it);
cout << "Length of line " << line_count << " is " << length << "\n";
// Convert it to utf-16
vector<unsigned short> utf16line;
utf8::utf8to16(line.begin(), end_it, back_inserter(utf16line));
// And back to utf-8;
string utf8line;
utf8::utf16to8(utf16line.begin(), utf16line.end(), back_inserter(utf8line));
// Confirm that the conversion went OK:
if (utf8line != string(line.begin(), end_it))
cout << "Error in UTF-16 conversion at line: " << line_count << "\n";
line_count++;
}
return 0;
}

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@ -0,0 +1,34 @@
// Copyright 2006 Nemanja Trifunovic
/*
Permission is hereby granted, free of charge, to any person or organization
obtaining a copy of the software and accompanying documentation covered by
this license (the "Software") to use, reproduce, display, distribute,
execute, and transmit the Software, and to prepare derivative works of the
Software, and to permit third-parties to whom the Software is furnished to
do so, all subject to the following:
The copyright notices in the Software and this entire statement, including
the above license grant, this restriction and the following disclaimer,
must be included in all copies of the Software, in whole or in part, and
all derivative works of the Software, unless such copies or derivative
works are solely in the form of machine-executable object code generated by
a source language processor.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
*/
#ifndef UTF8_FOR_CPP_2675DCD0_9480_4c0c_B92A_CC14C027B731
#define UTF8_FOR_CPP_2675DCD0_9480_4c0c_B92A_CC14C027B731
#include "utf8/checked.h"
#include "utf8/unchecked.h"
#endif // header guard

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@ -0,0 +1,327 @@
// Copyright 2006-2016 Nemanja Trifunovic
/*
Permission is hereby granted, free of charge, to any person or organization
obtaining a copy of the software and accompanying documentation covered by
this license (the "Software") to use, reproduce, display, distribute,
execute, and transmit the Software, and to prepare derivative works of the
Software, and to permit third-parties to whom the Software is furnished to
do so, all subject to the following:
The copyright notices in the Software and this entire statement, including
the above license grant, this restriction and the following disclaimer,
must be included in all copies of the Software, in whole or in part, and
all derivative works of the Software, unless such copies or derivative
works are solely in the form of machine-executable object code generated by
a source language processor.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
*/
#ifndef UTF8_FOR_CPP_CHECKED_H_2675DCD0_9480_4c0c_B92A_CC14C027B731
#define UTF8_FOR_CPP_CHECKED_H_2675DCD0_9480_4c0c_B92A_CC14C027B731
#include "core.h"
#include <stdexcept>
namespace utf8
{
// Base for the exceptions that may be thrown from the library
class exception : public ::std::exception {
};
// Exceptions that may be thrown from the library functions.
class invalid_code_point : public exception {
uint32_t cp;
public:
invalid_code_point(uint32_t codepoint) : cp(codepoint) {}
virtual const char* what() const throw() { return "Invalid code point"; }
uint32_t code_point() const {return cp;}
};
class invalid_utf8 : public exception {
uint8_t u8;
public:
invalid_utf8 (uint8_t u) : u8(u) {}
virtual const char* what() const throw() { return "Invalid UTF-8"; }
uint8_t utf8_octet() const {return u8;}
};
class invalid_utf16 : public exception {
uint16_t u16;
public:
invalid_utf16 (uint16_t u) : u16(u) {}
virtual const char* what() const throw() { return "Invalid UTF-16"; }
uint16_t utf16_word() const {return u16;}
};
class not_enough_room : public exception {
public:
virtual const char* what() const throw() { return "Not enough space"; }
};
/// The library API - functions intended to be called by the users
template <typename octet_iterator>
octet_iterator append(uint32_t cp, octet_iterator result)
{
if (!utf8::internal::is_code_point_valid(cp))
throw invalid_code_point(cp);
if (cp < 0x80) // one octet
*(result++) = static_cast<uint8_t>(cp);
else if (cp < 0x800) { // two octets
*(result++) = static_cast<uint8_t>((cp >> 6) | 0xc0);
*(result++) = static_cast<uint8_t>((cp & 0x3f) | 0x80);
}
else if (cp < 0x10000) { // three octets
*(result++) = static_cast<uint8_t>((cp >> 12) | 0xe0);
*(result++) = static_cast<uint8_t>(((cp >> 6) & 0x3f) | 0x80);
*(result++) = static_cast<uint8_t>((cp & 0x3f) | 0x80);
}
else { // four octets
*(result++) = static_cast<uint8_t>((cp >> 18) | 0xf0);
*(result++) = static_cast<uint8_t>(((cp >> 12) & 0x3f) | 0x80);
*(result++) = static_cast<uint8_t>(((cp >> 6) & 0x3f) | 0x80);
*(result++) = static_cast<uint8_t>((cp & 0x3f) | 0x80);
}
return result;
}
template <typename octet_iterator, typename output_iterator>
output_iterator replace_invalid(octet_iterator start, octet_iterator end, output_iterator out, uint32_t replacement)
{
while (start != end) {
octet_iterator sequence_start = start;
internal::utf_error err_code = utf8::internal::validate_next(start, end);
switch (err_code) {
case internal::UTF8_OK :
for (octet_iterator it = sequence_start; it != start; ++it)
*out++ = *it;
break;
case internal::NOT_ENOUGH_ROOM:
throw not_enough_room();
case internal::INVALID_LEAD:
out = utf8::append (replacement, out);
++start;
break;
case internal::INCOMPLETE_SEQUENCE:
case internal::OVERLONG_SEQUENCE:
case internal::INVALID_CODE_POINT:
out = utf8::append (replacement, out);
++start;
// just one replacement mark for the sequence
while (start != end && utf8::internal::is_trail(*start))
++start;
break;
}
}
return out;
}
template <typename octet_iterator, typename output_iterator>
inline output_iterator replace_invalid(octet_iterator start, octet_iterator end, output_iterator out)
{
static const uint32_t replacement_marker = utf8::internal::mask16(0xfffd);
return utf8::replace_invalid(start, end, out, replacement_marker);
}
template <typename octet_iterator>
uint32_t next(octet_iterator& it, octet_iterator end)
{
uint32_t cp = 0;
internal::utf_error err_code = utf8::internal::validate_next(it, end, cp);
switch (err_code) {
case internal::UTF8_OK :
break;
case internal::NOT_ENOUGH_ROOM :
throw not_enough_room();
case internal::INVALID_LEAD :
case internal::INCOMPLETE_SEQUENCE :
case internal::OVERLONG_SEQUENCE :
throw invalid_utf8(*it);
case internal::INVALID_CODE_POINT :
throw invalid_code_point(cp);
}
return cp;
}
template <typename octet_iterator>
uint32_t peek_next(octet_iterator it, octet_iterator end)
{
return utf8::next(it, end);
}
template <typename octet_iterator>
uint32_t prior(octet_iterator& it, octet_iterator start)
{
// can't do much if it == start
if (it == start)
throw not_enough_room();
octet_iterator end = it;
// Go back until we hit either a lead octet or start
while (utf8::internal::is_trail(*(--it)))
if (it == start)
throw invalid_utf8(*it); // error - no lead byte in the sequence
return utf8::peek_next(it, end);
}
/// Deprecated in versions that include "prior"
template <typename octet_iterator>
uint32_t previous(octet_iterator& it, octet_iterator pass_start)
{
octet_iterator end = it;
while (utf8::internal::is_trail(*(--it)))
if (it == pass_start)
throw invalid_utf8(*it); // error - no lead byte in the sequence
octet_iterator temp = it;
return utf8::next(temp, end);
}
template <typename octet_iterator, typename distance_type>
void advance (octet_iterator& it, distance_type n, octet_iterator end)
{
for (distance_type i = 0; i < n; ++i)
utf8::next(it, end);
}
template <typename octet_iterator>
typename std::iterator_traits<octet_iterator>::difference_type
distance (octet_iterator first, octet_iterator last)
{
typename std::iterator_traits<octet_iterator>::difference_type dist;
for (dist = 0; first < last; ++dist)
utf8::next(first, last);
return dist;
}
template <typename u16bit_iterator, typename octet_iterator>
octet_iterator utf16to8 (u16bit_iterator start, u16bit_iterator end, octet_iterator result)
{
while (start != end) {
uint32_t cp = utf8::internal::mask16(*start++);
// Take care of surrogate pairs first
if (utf8::internal::is_lead_surrogate(cp)) {
if (start != end) {
uint32_t trail_surrogate = utf8::internal::mask16(*start++);
if (utf8::internal::is_trail_surrogate(trail_surrogate))
cp = (cp << 10) + trail_surrogate + internal::SURROGATE_OFFSET;
else
throw invalid_utf16(static_cast<uint16_t>(trail_surrogate));
}
else
throw invalid_utf16(static_cast<uint16_t>(cp));
}
// Lone trail surrogate
else if (utf8::internal::is_trail_surrogate(cp))
throw invalid_utf16(static_cast<uint16_t>(cp));
result = utf8::append(cp, result);
}
return result;
}
template <typename u16bit_iterator, typename octet_iterator>
u16bit_iterator utf8to16 (octet_iterator start, octet_iterator end, u16bit_iterator result)
{
while (start < end) {
uint32_t cp = utf8::next(start, end);
if (cp > 0xffff) { //make a surrogate pair
*result++ = static_cast<uint16_t>((cp >> 10) + internal::LEAD_OFFSET);
*result++ = static_cast<uint16_t>((cp & 0x3ff) + internal::TRAIL_SURROGATE_MIN);
}
else
*result++ = static_cast<uint16_t>(cp);
}
return result;
}
template <typename octet_iterator, typename u32bit_iterator>
octet_iterator utf32to8 (u32bit_iterator start, u32bit_iterator end, octet_iterator result)
{
while (start != end)
result = utf8::append(*(start++), result);
return result;
}
template <typename octet_iterator, typename u32bit_iterator>
u32bit_iterator utf8to32 (octet_iterator start, octet_iterator end, u32bit_iterator result)
{
while (start < end)
(*result++) = utf8::next(start, end);
return result;
}
// The iterator class
template <typename octet_iterator>
class iterator : public std::iterator <std::bidirectional_iterator_tag, uint32_t> {
octet_iterator it;
octet_iterator range_start;
octet_iterator range_end;
public:
iterator () {}
explicit iterator (const octet_iterator& octet_it,
const octet_iterator& rangestart,
const octet_iterator& rangeend) :
it(octet_it), range_start(rangestart), range_end(rangeend)
{
if (it < range_start || it > range_end)
throw std::out_of_range("Invalid utf-8 iterator position");
}
// the default "big three" are OK
octet_iterator base () const { return it; }
uint32_t operator * () const
{
octet_iterator temp = it;
return utf8::next(temp, range_end);
}
bool operator == (const iterator& rhs) const
{
if (range_start != rhs.range_start || range_end != rhs.range_end)
throw std::logic_error("Comparing utf-8 iterators defined with different ranges");
return (it == rhs.it);
}
bool operator != (const iterator& rhs) const
{
return !(operator == (rhs));
}
iterator& operator ++ ()
{
utf8::next(it, range_end);
return *this;
}
iterator operator ++ (int)
{
iterator temp = *this;
utf8::next(it, range_end);
return temp;
}
iterator& operator -- ()
{
utf8::prior(it, range_start);
return *this;
}
iterator operator -- (int)
{
iterator temp = *this;
utf8::prior(it, range_start);
return temp;
}
}; // class iterator
} // namespace utf8
#endif //header guard

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@ -0,0 +1,332 @@
// Copyright 2006 Nemanja Trifunovic
/*
Permission is hereby granted, free of charge, to any person or organization
obtaining a copy of the software and accompanying documentation covered by
this license (the "Software") to use, reproduce, display, distribute,
execute, and transmit the Software, and to prepare derivative works of the
Software, and to permit third-parties to whom the Software is furnished to
do so, all subject to the following:
The copyright notices in the Software and this entire statement, including
the above license grant, this restriction and the following disclaimer,
must be included in all copies of the Software, in whole or in part, and
all derivative works of the Software, unless such copies or derivative
works are solely in the form of machine-executable object code generated by
a source language processor.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
*/
#ifndef UTF8_FOR_CPP_CORE_H_2675DCD0_9480_4c0c_B92A_CC14C027B731
#define UTF8_FOR_CPP_CORE_H_2675DCD0_9480_4c0c_B92A_CC14C027B731
#include <iterator>
namespace utf8
{
// The typedefs for 8-bit, 16-bit and 32-bit unsigned integers
// You may need to change them to match your system.
// These typedefs have the same names as ones from cstdint, or boost/cstdint
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;
// Helper code - not intended to be directly called by the library users. May be changed at any time
namespace internal
{
// Unicode constants
// Leading (high) surrogates: 0xd800 - 0xdbff
// Trailing (low) surrogates: 0xdc00 - 0xdfff
const uint16_t LEAD_SURROGATE_MIN = 0xd800u;
const uint16_t LEAD_SURROGATE_MAX = 0xdbffu;
const uint16_t TRAIL_SURROGATE_MIN = 0xdc00u;
const uint16_t TRAIL_SURROGATE_MAX = 0xdfffu;
const uint16_t LEAD_OFFSET = LEAD_SURROGATE_MIN - (0x10000 >> 10);
const uint32_t SURROGATE_OFFSET = 0x10000u - (LEAD_SURROGATE_MIN << 10) - TRAIL_SURROGATE_MIN;
// Maximum valid value for a Unicode code point
const uint32_t CODE_POINT_MAX = 0x0010ffffu;
template<typename octet_type>
inline uint8_t mask8(octet_type oc)
{
return static_cast<uint8_t>(0xff & oc);
}
template<typename u16_type>
inline uint16_t mask16(u16_type oc)
{
return static_cast<uint16_t>(0xffff & oc);
}
template<typename octet_type>
inline bool is_trail(octet_type oc)
{
return ((utf8::internal::mask8(oc) >> 6) == 0x2);
}
template <typename u16>
inline bool is_lead_surrogate(u16 cp)
{
return (cp >= LEAD_SURROGATE_MIN && cp <= LEAD_SURROGATE_MAX);
}
template <typename u16>
inline bool is_trail_surrogate(u16 cp)
{
return (cp >= TRAIL_SURROGATE_MIN && cp <= TRAIL_SURROGATE_MAX);
}
template <typename u16>
inline bool is_surrogate(u16 cp)
{
return (cp >= LEAD_SURROGATE_MIN && cp <= TRAIL_SURROGATE_MAX);
}
template <typename u32>
inline bool is_code_point_valid(u32 cp)
{
return (cp <= CODE_POINT_MAX && !utf8::internal::is_surrogate(cp));
}
template <typename octet_iterator>
inline typename std::iterator_traits<octet_iterator>::difference_type
sequence_length(octet_iterator lead_it)
{
uint8_t lead = utf8::internal::mask8(*lead_it);
if (lead < 0x80)
return 1;
else if ((lead >> 5) == 0x6)
return 2;
else if ((lead >> 4) == 0xe)
return 3;
else if ((lead >> 3) == 0x1e)
return 4;
else
return 0;
}
template <typename octet_difference_type>
inline bool is_overlong_sequence(uint32_t cp, octet_difference_type length)
{
if (cp < 0x80) {
if (length != 1)
return true;
}
else if (cp < 0x800) {
if (length != 2)
return true;
}
else if (cp < 0x10000) {
if (length != 3)
return true;
}
return false;
}
enum utf_error {UTF8_OK, NOT_ENOUGH_ROOM, INVALID_LEAD, INCOMPLETE_SEQUENCE, OVERLONG_SEQUENCE, INVALID_CODE_POINT};
/// Helper for get_sequence_x
template <typename octet_iterator>
utf_error increase_safely(octet_iterator& it, octet_iterator end)
{
if (++it == end)
return NOT_ENOUGH_ROOM;
if (!utf8::internal::is_trail(*it))
return INCOMPLETE_SEQUENCE;
return UTF8_OK;
}
#define UTF8_CPP_INCREASE_AND_RETURN_ON_ERROR(IT, END) {utf_error ret = increase_safely(IT, END); if (ret != UTF8_OK) return ret;}
/// get_sequence_x functions decode utf-8 sequences of the length x
template <typename octet_iterator>
utf_error get_sequence_1(octet_iterator& it, octet_iterator end, uint32_t& code_point)
{
if (it == end)
return NOT_ENOUGH_ROOM;
code_point = utf8::internal::mask8(*it);
return UTF8_OK;
}
template <typename octet_iterator>
utf_error get_sequence_2(octet_iterator& it, octet_iterator end, uint32_t& code_point)
{
if (it == end)
return NOT_ENOUGH_ROOM;
code_point = utf8::internal::mask8(*it);
UTF8_CPP_INCREASE_AND_RETURN_ON_ERROR(it, end)
code_point = ((code_point << 6) & 0x7ff) + ((*it) & 0x3f);
return UTF8_OK;
}
template <typename octet_iterator>
utf_error get_sequence_3(octet_iterator& it, octet_iterator end, uint32_t& code_point)
{
if (it == end)
return NOT_ENOUGH_ROOM;
code_point = utf8::internal::mask8(*it);
UTF8_CPP_INCREASE_AND_RETURN_ON_ERROR(it, end)
code_point = ((code_point << 12) & 0xffff) + ((utf8::internal::mask8(*it) << 6) & 0xfff);
UTF8_CPP_INCREASE_AND_RETURN_ON_ERROR(it, end)
code_point += (*it) & 0x3f;
return UTF8_OK;
}
template <typename octet_iterator>
utf_error get_sequence_4(octet_iterator& it, octet_iterator end, uint32_t& code_point)
{
if (it == end)
return NOT_ENOUGH_ROOM;
code_point = utf8::internal::mask8(*it);
UTF8_CPP_INCREASE_AND_RETURN_ON_ERROR(it, end)
code_point = ((code_point << 18) & 0x1fffff) + ((utf8::internal::mask8(*it) << 12) & 0x3ffff);
UTF8_CPP_INCREASE_AND_RETURN_ON_ERROR(it, end)
code_point += (utf8::internal::mask8(*it) << 6) & 0xfff;
UTF8_CPP_INCREASE_AND_RETURN_ON_ERROR(it, end)
code_point += (*it) & 0x3f;
return UTF8_OK;
}
#undef UTF8_CPP_INCREASE_AND_RETURN_ON_ERROR
template <typename octet_iterator>
utf_error validate_next(octet_iterator& it, octet_iterator end, uint32_t& code_point)
{
if (it == end)
return NOT_ENOUGH_ROOM;
// Save the original value of it so we can go back in case of failure
// Of course, it does not make much sense with i.e. stream iterators
octet_iterator original_it = it;
uint32_t cp = 0;
// Determine the sequence length based on the lead octet
typedef typename std::iterator_traits<octet_iterator>::difference_type octet_difference_type;
const octet_difference_type length = utf8::internal::sequence_length(it);
// Get trail octets and calculate the code point
utf_error err = UTF8_OK;
switch (length) {
case 0:
return INVALID_LEAD;
case 1:
err = utf8::internal::get_sequence_1(it, end, cp);
break;
case 2:
err = utf8::internal::get_sequence_2(it, end, cp);
break;
case 3:
err = utf8::internal::get_sequence_3(it, end, cp);
break;
case 4:
err = utf8::internal::get_sequence_4(it, end, cp);
break;
}
if (err == UTF8_OK) {
// Decoding succeeded. Now, security checks...
if (utf8::internal::is_code_point_valid(cp)) {
if (!utf8::internal::is_overlong_sequence(cp, length)){
// Passed! Return here.
code_point = cp;
++it;
return UTF8_OK;
}
else
err = OVERLONG_SEQUENCE;
}
else
err = INVALID_CODE_POINT;
}
// Failure branch - restore the original value of the iterator
it = original_it;
return err;
}
template <typename octet_iterator>
inline utf_error validate_next(octet_iterator& it, octet_iterator end) {
uint32_t ignored;
return utf8::internal::validate_next(it, end, ignored);
}
} // namespace internal
/// The library API - functions intended to be called by the users
// Byte order mark
const uint8_t bom[] = {0xef, 0xbb, 0xbf};
template <typename octet_iterator>
octet_iterator find_invalid(octet_iterator start, octet_iterator end)
{
octet_iterator result = start;
while (result != end) {
utf8::internal::utf_error err_code = utf8::internal::validate_next(result, end);
if (err_code != internal::UTF8_OK)
return result;
}
return result;
}
template <typename octet_iterator>
inline bool is_valid(octet_iterator start, octet_iterator end)
{
return (utf8::find_invalid(start, end) == end);
}
template <typename octet_iterator>
inline bool starts_with_bom (octet_iterator it, octet_iterator end)
{
return (
((it != end) && (utf8::internal::mask8(*it++)) == bom[0]) &&
((it != end) && (utf8::internal::mask8(*it++)) == bom[1]) &&
((it != end) && (utf8::internal::mask8(*it)) == bom[2])
);
}
//Deprecated in release 2.3
template <typename octet_iterator>
inline bool is_bom (octet_iterator it)
{
return (
(utf8::internal::mask8(*it++)) == bom[0] &&
(utf8::internal::mask8(*it++)) == bom[1] &&
(utf8::internal::mask8(*it)) == bom[2]
);
}
} // namespace utf8
#endif // header guard

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// Copyright 2006 Nemanja Trifunovic
/*
Permission is hereby granted, free of charge, to any person or organization
obtaining a copy of the software and accompanying documentation covered by
this license (the "Software") to use, reproduce, display, distribute,
execute, and transmit the Software, and to prepare derivative works of the
Software, and to permit third-parties to whom the Software is furnished to
do so, all subject to the following:
The copyright notices in the Software and this entire statement, including
the above license grant, this restriction and the following disclaimer,
must be included in all copies of the Software, in whole or in part, and
all derivative works of the Software, unless such copies or derivative
works are solely in the form of machine-executable object code generated by
a source language processor.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
*/
#ifndef UTF8_FOR_CPP_UNCHECKED_H_2675DCD0_9480_4c0c_B92A_CC14C027B731
#define UTF8_FOR_CPP_UNCHECKED_H_2675DCD0_9480_4c0c_B92A_CC14C027B731
#include "core.h"
namespace utf8
{
namespace unchecked
{
template <typename octet_iterator>
octet_iterator append(uint32_t cp, octet_iterator result)
{
if (cp < 0x80) // one octet
*(result++) = static_cast<uint8_t>(cp);
else if (cp < 0x800) { // two octets
*(result++) = static_cast<uint8_t>((cp >> 6) | 0xc0);
*(result++) = static_cast<uint8_t>((cp & 0x3f) | 0x80);
}
else if (cp < 0x10000) { // three octets
*(result++) = static_cast<uint8_t>((cp >> 12) | 0xe0);
*(result++) = static_cast<uint8_t>(((cp >> 6) & 0x3f) | 0x80);
*(result++) = static_cast<uint8_t>((cp & 0x3f) | 0x80);
}
else { // four octets
*(result++) = static_cast<uint8_t>((cp >> 18) | 0xf0);
*(result++) = static_cast<uint8_t>(((cp >> 12) & 0x3f)| 0x80);
*(result++) = static_cast<uint8_t>(((cp >> 6) & 0x3f) | 0x80);
*(result++) = static_cast<uint8_t>((cp & 0x3f) | 0x80);
}
return result;
}
template <typename octet_iterator>
uint32_t next(octet_iterator& it)
{
uint32_t cp = utf8::internal::mask8(*it);
typename std::iterator_traits<octet_iterator>::difference_type length = utf8::internal::sequence_length(it);
switch (length) {
case 1:
break;
case 2:
it++;
cp = ((cp << 6) & 0x7ff) + ((*it) & 0x3f);
break;
case 3:
++it;
cp = ((cp << 12) & 0xffff) + ((utf8::internal::mask8(*it) << 6) & 0xfff);
++it;
cp += (*it) & 0x3f;
break;
case 4:
++it;
cp = ((cp << 18) & 0x1fffff) + ((utf8::internal::mask8(*it) << 12) & 0x3ffff);
++it;
cp += (utf8::internal::mask8(*it) << 6) & 0xfff;
++it;
cp += (*it) & 0x3f;
break;
}
++it;
return cp;
}
template <typename octet_iterator>
uint32_t peek_next(octet_iterator it)
{
return utf8::unchecked::next(it);
}
template <typename octet_iterator>
uint32_t prior(octet_iterator& it)
{
while (utf8::internal::is_trail(*(--it))) ;
octet_iterator temp = it;
return utf8::unchecked::next(temp);
}
// Deprecated in versions that include prior, but only for the sake of consistency (see utf8::previous)
template <typename octet_iterator>
inline uint32_t previous(octet_iterator& it)
{
return utf8::unchecked::prior(it);
}
template <typename octet_iterator, typename distance_type>
void advance (octet_iterator& it, distance_type n)
{
for (distance_type i = 0; i < n; ++i)
utf8::unchecked::next(it);
}
template <typename octet_iterator>
typename std::iterator_traits<octet_iterator>::difference_type
distance (octet_iterator first, octet_iterator last)
{
typename std::iterator_traits<octet_iterator>::difference_type dist;
for (dist = 0; first < last; ++dist)
utf8::unchecked::next(first);
return dist;
}
template <typename u16bit_iterator, typename octet_iterator>
octet_iterator utf16to8 (u16bit_iterator start, u16bit_iterator end, octet_iterator result)
{
while (start != end) {
uint32_t cp = utf8::internal::mask16(*start++);
// Take care of surrogate pairs first
if (utf8::internal::is_lead_surrogate(cp)) {
uint32_t trail_surrogate = utf8::internal::mask16(*start++);
cp = (cp << 10) + trail_surrogate + internal::SURROGATE_OFFSET;
}
result = utf8::unchecked::append(cp, result);
}
return result;
}
template <typename u16bit_iterator, typename octet_iterator>
u16bit_iterator utf8to16 (octet_iterator start, octet_iterator end, u16bit_iterator result)
{
while (start < end) {
uint32_t cp = utf8::unchecked::next(start);
if (cp > 0xffff) { //make a surrogate pair
*result++ = static_cast<uint16_t>((cp >> 10) + internal::LEAD_OFFSET);
*result++ = static_cast<uint16_t>((cp & 0x3ff) + internal::TRAIL_SURROGATE_MIN);
}
else
*result++ = static_cast<uint16_t>(cp);
}
return result;
}
template <typename octet_iterator, typename u32bit_iterator>
octet_iterator utf32to8 (u32bit_iterator start, u32bit_iterator end, octet_iterator result)
{
while (start != end)
result = utf8::unchecked::append(*(start++), result);
return result;
}
template <typename octet_iterator, typename u32bit_iterator>
u32bit_iterator utf8to32 (octet_iterator start, octet_iterator end, u32bit_iterator result)
{
while (start < end)
(*result++) = utf8::unchecked::next(start);
return result;
}
// The iterator class
template <typename octet_iterator>
class iterator : public std::iterator <std::bidirectional_iterator_tag, uint32_t> {
octet_iterator it;
public:
iterator () {}
explicit iterator (const octet_iterator& octet_it): it(octet_it) {}
// the default "big three" are OK
octet_iterator base () const { return it; }
uint32_t operator * () const
{
octet_iterator temp = it;
return utf8::unchecked::next(temp);
}
bool operator == (const iterator& rhs) const
{
return (it == rhs.it);
}
bool operator != (const iterator& rhs) const
{
return !(operator == (rhs));
}
iterator& operator ++ ()
{
::std::advance(it, utf8::internal::sequence_length(it));
return *this;
}
iterator operator ++ (int)
{
iterator temp = *this;
::std::advance(it, utf8::internal::sequence_length(it));
return temp;
}
iterator& operator -- ()
{
utf8::unchecked::prior(it);
return *this;
}
iterator operator -- (int)
{
iterator temp = *this;
utf8::unchecked::prior(it);
return temp;
}
}; // class iterator
} // namespace utf8::unchecked
} // namespace utf8
#endif // header guard

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UTF-8 encoded sample plain-text file
‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
Markus Kuhn [ˈmaʳkʊs kuːn] <http://www.cl.cam.ac.uk/~mgk25/> — 2002-07-25
The ASCII compatible UTF-8 encoding used in this plain-text file
is defined in Unicode, ISO 10646-1, and RFC 2279.
Using Unicode/UTF-8, you can write in emails and source code things such as
Mathematics and sciences:
∮ E⋅da = Q, n → ∞, ∑ f(i) = ∏ g(i), ⎧⎡⎛┌─────┐⎞⎤⎫
⎪⎢⎜│a²+b³ ⎟⎥⎪
∀x∈: ⌈x⌉ = x⌋, α ∧ ¬β = ¬(¬α β), ⎪⎢⎜│───── ⎟⎥⎪
⎪⎢⎜⎷ c₈ ⎟⎥⎪
⊆ ℕ₀ ⊂ , ⎨⎢⎜ ⎟⎥⎬
⎪⎢⎜ ∞ ⎟⎥⎪
⊥ < a ≠ b ≡ c ≤ d ≪ ⇒ (⟦A⟧ ⇔ ⟪B⟫), ⎪⎢⎜ ⎲ ⎟⎥⎪
⎪⎢⎜ ⎳aⁱ-bⁱ⎟⎥⎪
2H₂ + O₂ ⇌ 2H₂O, R = 4.7 kΩ, ⌀ 200 mm ⎩⎣⎝i=1 ⎠⎦⎭
Linguistics and dictionaries:
ði ıntəˈnæʃənəl fəˈnɛtık əsoʊsiˈeıʃn
Y [ˈʏpsilɔn], Yen [jɛn], Yoga [ˈjoːgɑ]
APL:
((VV)=V)/V←,V ⌷←⍳→⍴∆∇⊃‾⍎⍕⌈
Nicer typography in plain text files:
╔══════════════════════════════════════════╗
║ ║
║ • single and “double” quotes ║
║ ║
║ • Curly apostrophes: “Weve been here” ║
║ ║
║ • Latin-1 apostrophe and accents: '´` ║
║ ║
║ • deutsche „Anführungszeichen“ ║
║ ║
║ • †, ‡, ‰, •, 34, —, 5/+5, ™, … ║
║ ║
║ • ASCII safety test: 1lI|, 0OD, 8B ║
║ ╭─────────╮ ║
║ • the euro symbol: │ 14.95 € │ ║
║ ╰─────────╯ ║
╚══════════════════════════════════════════╝
Combining characters:
STARGΛ̊TE SG-1, a = v̇ = r̈, a⃑ ⊥ b⃑
Greek (in Polytonic):
The Greek anthem:
Σὲ γνωρίζω ἀπὸ τὴν κόψη
τοῦ σπαθιοῦ τὴν τρομερή,
σὲ γνωρίζω ἀπὸ τὴν ὄψη
ποὺ μὲ βία μετράει τὴ γῆ.
᾿Απ᾿ τὰ κόκκαλα βγαλμένη
τῶν ῾Ελλήνων τὰ ἱερά
καὶ σὰν πρῶτα ἀνδρειωμένη
χαῖρε, ὦ χαῖρε, ᾿Ελευθεριά!
From a speech of Demosthenes in the 4th century BC:
Οὐχὶ ταὐτὰ παρίσταταί μοι γιγνώσκειν, ὦ ἄνδρες ᾿Αθηναῖοι,
ὅταν τ᾿ εἰς τὰ πράγματα ἀποβλέψω καὶ ὅταν πρὸς τοὺς
λόγους οὓς ἀκούω· τοὺς μὲν γὰρ λόγους περὶ τοῦ
τιμωρήσασθαι Φίλιππον ὁρῶ γιγνομένους, τὰ δὲ πράγματ᾿
εἰς τοῦτο προήκοντα, ὥσθ᾿ ὅπως μὴ πεισόμεθ᾿ αὐτοὶ
πρότερον κακῶς σκέψασθαι δέον. οὐδέν οὖν ἄλλο μοι δοκοῦσιν
οἱ τὰ τοιαῦτα λέγοντες ἢ τὴν ὑπόθεσιν, περὶ ἧς βουλεύεσθαι,
οὐχὶ τὴν οὖσαν παριστάντες ὑμῖν ἁμαρτάνειν. ἐγὼ δέ, ὅτι μέν
ποτ᾿ ἐξῆν τῇ πόλει καὶ τὰ αὑτῆς ἔχειν ἀσφαλῶς καὶ Φίλιππον
τιμωρήσασθαι, καὶ μάλ᾿ ἀκριβῶς οἶδα· ἐπ᾿ ἐμοῦ γάρ, οὐ πάλαι
γέγονεν ταῦτ᾿ ἀμφότερα· νῦν μέντοι πέπεισμαι τοῦθ᾿ ἱκανὸν
προλαβεῖν ἡμῖν εἶναι τὴν πρώτην, ὅπως τοὺς συμμάχους
σώσομεν. ἐὰν γὰρ τοῦτο βεβαίως ὑπάρξῃ, τότε καὶ περὶ τοῦ
τίνα τιμωρήσεταί τις καὶ ὃν τρόπον ἐξέσται σκοπεῖν· πρὶν δὲ
τὴν ἀρχὴν ὀρθῶς ὑποθέσθαι, μάταιον ἡγοῦμαι περὶ τῆς
τελευτῆς ὁντινοῦν ποιεῖσθαι λόγον.
Δημοσθένους, Γ´ ᾿Ολυνθιακὸς
Georgian:
From a Unicode conference invitation:
გთხოვთ ახლავე გაიაროთ რეგისტრაცია Unicode-ის მეათე საერთაშორისო
კონფერენციაზე დასასწრებად, რომელიც გაიმართება 10-12 მარტს,
ქ. მაინცში, გერმანიაში. კონფერენცია შეჰკრებს ერთად მსოფლიოს
ექსპერტებს ისეთ დარგებში როგორიცაა ინტერნეტი და Unicode-ი,
ინტერნაციონალიზაცია და ლოკალიზაცია, Unicode-ის გამოყენება
ოპერაციულ სისტემებსა, და გამოყენებით პროგრამებში, შრიფტებში,
ტექსტების დამუშავებასა და მრავალენოვან კომპიუტერულ სისტემებში.
Russian:
From a Unicode conference invitation:
Зарегистрируйтесь сейчас на Десятую Международную Конференцию по
Unicode, которая состоится 10-12 марта 1997 года в Майнце в Германии.
Конференция соберет широкий круг экспертов по вопросам глобального
Интернета и Unicode, локализации и интернационализации, воплощению и
применению Unicode в различных операционных системах и программных
приложениях, шрифтах, верстке и многоязычных компьютерных системах.
Thai (UCS Level 2):
Excerpt from a poetry on The Romance of The Three Kingdoms (a Chinese
classic 'San Gua'):
[----------------------------|------------------------]
๏ แผ่นดินฮั่นเสื่อมโทรมแสนสังเวช พระปกเกศกองบู๊กู้ขึ้นใหม่
สิบสองกษัตริย์ก่อนหน้าแลถัดไป สององค์ไซร้โง่เขลาเบาปัญญา
ทรงนับถือขันทีเป็นที่พึ่ง บ้านเมืองจึงวิปริตเป็นนักหนา
โฮจิ๋นเรียกทัพทั่วหัวเมืองมา หมายจะฆ่ามดชั่วตัวสำคัญ
เหมือนขับไสไล่เสือจากเคหา รับหมาป่าเข้ามาเลยอาสัญ
ฝ่ายอ้องอุ้นยุแยกให้แตกกัน ใช้สาวนั้นเป็นชนวนชื่นชวนใจ
พลันลิฉุยกุยกีกลับก่อเหตุ ช่างอาเพศจริงหนาฟ้าร้องไห้
ต้องรบราฆ่าฟันจนบรรลัย ฤๅหาใครค้ำชูกู้บรรลังก์ ฯ
(The above is a two-column text. If combining characters are handled
correctly, the lines of the second column should be aligned with the
| character above.)
Ethiopian:
Proverbs in the Amharic language:
ሰማይ አይታረስ ንጉሥ አይከሰስ።
ብላ ካለኝ እንደአባቴ በቆመጠኝ።
ጌጥ ያለቤቱ ቁምጥና ነው።
ደሀ በሕልሙ ቅቤ ባይጠጣ ንጣት በገደለው።
የአፍ ወለምታ በቅቤ አይታሽም።
አይጥ በበላ ዳዋ ተመታ።
ሲተረጉሙ ይደረግሙ።
ቀስ በቀስ፥ ዕንቁላል በእግሩ ይሄዳል።
ድር ቢያብር አንበሳ ያስር።
ሰው እንደቤቱ እንጅ እንደ ጉረቤቱ አይተዳደርም።
እግዜር የከፈተውን ጉሮሮ ሳይዘጋው አይድርም።
የጎረቤት ሌባ፥ ቢያዩት ይስቅ ባያዩት ያጠልቅ።
ሥራ ከመፍታት ልጄን ላፋታት።
ዓባይ ማደሪያ የለው፥ ግንድ ይዞ ይዞራል።
የእስላም አገሩ መካ የአሞራ አገሩ ዋርካ።
ተንጋሎ ቢተፉ ተመልሶ ባፉ።
ወዳጅህ ማር ቢሆን ጨርስህ አትላሰው።
እግርህን በፍራሽህ ልክ ዘርጋ።
Runes:
ᚻᛖ ᚳᚹᚫᚦ ᚦᚫᛏ ᚻᛖ ᛒᚢᛞᛖ ᚩᚾ ᚦᚫᛗ ᛚᚪᚾᛞᛖ ᚾᚩᚱᚦᚹᛖᚪᚱᛞᚢᛗ ᚹᛁᚦ ᚦᚪ ᚹᛖᛥᚫ
(Old English, which transcribed into Latin reads 'He cwaeth that he
bude thaem lande northweardum with tha Westsae.' and means 'He said
that he lived in the northern land near the Western Sea.')
Braille:
⡌⠁⠧⠑ ⠼⠁⠒ ⡍⠜⠇⠑⠹⠰⠎ ⡣⠕⠌
⡍⠜⠇⠑⠹ ⠺⠁⠎ ⠙⠑⠁⠙⠒ ⠞⠕ ⠃⠑⠛⠔ ⠺⠊⠹⠲ ⡹⠻⠑ ⠊⠎ ⠝⠕ ⠙⠳⠃⠞
⠱⠁⠞⠑⠧⠻ ⠁⠃⠳⠞ ⠹⠁⠞⠲ ⡹⠑ ⠗⠑⠛⠊⠌⠻ ⠕⠋ ⠙⠊⠎ ⠃⠥⠗⠊⠁⠇ ⠺⠁⠎
⠎⠊⠛⠝⠫ ⠃⠹ ⠹⠑ ⠊⠇⠻⠛⠹⠍⠁⠝⠂ ⠹⠑ ⠊⠇⠻⠅⠂ ⠹⠑ ⠥⠝⠙⠻⠞⠁⠅⠻⠂
⠁⠝⠙ ⠹⠑ ⠡⠊⠑⠋ ⠍⠳⠗⠝⠻⠲ ⡎⠊⠗⠕⠕⠛⠑ ⠎⠊⠛⠝⠫ ⠊⠞⠲ ⡁⠝⠙
⡎⠊⠗⠕⠕⠛⠑⠰⠎ ⠝⠁⠍⠑ ⠺⠁⠎ ⠛⠕⠕⠙ ⠥⠏⠕⠝ ⠰⡡⠁⠝⠛⠑⠂ ⠋⠕⠗ ⠁⠝⠹⠹⠔⠛ ⠙⠑
⠡⠕⠎⠑ ⠞⠕ ⠏⠥⠞ ⠙⠊⠎ ⠙⠁⠝⠙ ⠞⠕⠲
⡕⠇⠙ ⡍⠜⠇⠑⠹ ⠺⠁⠎ ⠁⠎ ⠙⠑⠁⠙ ⠁⠎ ⠁ ⠙⠕⠕⠗⠤⠝⠁⠊⠇⠲
⡍⠔⠙⠖ ⡊ ⠙⠕⠝⠰⠞ ⠍⠑⠁⠝ ⠞⠕ ⠎⠁⠹ ⠹⠁⠞ ⡊ ⠅⠝⠪⠂ ⠕⠋ ⠍⠹
⠪⠝ ⠅⠝⠪⠇⠫⠛⠑⠂ ⠱⠁⠞ ⠹⠻⠑ ⠊⠎ ⠏⠜⠞⠊⠊⠥⠇⠜⠇⠹ ⠙⠑⠁⠙ ⠁⠃⠳⠞
⠁ ⠙⠕⠕⠗⠤⠝⠁⠊⠇⠲ ⡊ ⠍⠊⠣⠞ ⠙⠁⠧⠑ ⠃⠑⠲ ⠔⠊⠇⠔⠫⠂ ⠍⠹⠎⠑⠇⠋⠂ ⠞⠕
⠗⠑⠛⠜⠙ ⠁ ⠊⠕⠋⠋⠔⠤⠝⠁⠊⠇ ⠁⠎ ⠹⠑ ⠙⠑⠁⠙⠑⠌ ⠏⠊⠑⠊⠑ ⠕⠋ ⠊⠗⠕⠝⠍⠕⠝⠛⠻⠹
⠔ ⠹⠑ ⠞⠗⠁⠙⠑⠲ ⡃⠥⠞ ⠹⠑ ⠺⠊⠎⠙⠕⠍ ⠕⠋ ⠳⠗ ⠁⠝⠊⠑⠌⠕⠗⠎
⠊⠎ ⠔ ⠹⠑ ⠎⠊⠍⠊⠇⠑⠆ ⠁⠝⠙ ⠍⠹ ⠥⠝⠙⠁⠇⠇⠪⠫ ⠙⠁⠝⠙⠎
⠩⠁⠇⠇ ⠝⠕⠞ ⠙⠊⠌⠥⠗⠃ ⠊⠞⠂ ⠕⠗ ⠹⠑ ⡊⠳⠝⠞⠗⠹⠰⠎ ⠙⠕⠝⠑ ⠋⠕⠗⠲ ⡹⠳
⠺⠊⠇⠇ ⠹⠻⠑⠋⠕⠗⠑ ⠏⠻⠍⠊⠞ ⠍⠑ ⠞⠕ ⠗⠑⠏⠑⠁⠞⠂ ⠑⠍⠏⠙⠁⠞⠊⠊⠁⠇⠇⠹⠂ ⠹⠁⠞
⡍⠜⠇⠑⠹ ⠺⠁⠎ ⠁⠎ ⠙⠑⠁⠙ ⠁⠎ ⠁ ⠙⠕⠕⠗⠤⠝⠁⠊⠇⠲
(The first couple of paragraphs of "A Christmas Carol" by Dickens)
Compact font selection example text:
ABCDEFGHIJKLMNOPQRSTUVWXYZ /0123456789
abcdefghijklmnopqrstuvwxyz £©µÀÆÖÞßéöÿ
–—‘“”„†•…‰™œŠŸž€ ΑΒΓΔΩαβγδω АБВГДабвгд
∀∂∈ℝ∧∪≡∞ ↑↗↨↻⇣ ┐┼╔╘░►☺♀ fi<>⑀₂ἠḂӥẄɐː⍎אԱა
Greetings in various languages:
Hello world, Καλημέρα κόσμε, コンニチハ
Box drawing alignment tests: █
╔══╦══╗ ┌──┬──┐ ╭──┬──╮ ╭──┬──╮ ┏━━┳━━┓ ┎┒┏┑ ╷ ╻ ┏┯┓ ┌┰┐ ▊ ╱╲╱╲╳╳╳
║┌─╨─┐║ │╔═╧═╗│ │╒═╪═╕│ │╓─╁─╖│ ┃┌─╂─┐┃ ┗╃╄┙ ╶┼╴╺╋╸┠┼┨ ┝╋┥ ▋ ╲╱╲╱╳╳╳
║│╲ ╱│║ │║ ║│ ││ │ ││ │║ ┃ ║│ ┃│ ╿ │┃ ┍╅╆┓ ╵ ╹ ┗┷┛ └┸┘ ▌ ╱╲╱╲╳╳╳
╠╡ ╞╣ ├╢ ╟┤ ├┼─┼─┼┤ ├╫─╂─╫┤ ┣┿╾┼╼┿┫ ┕┛┖┚ ┌┄┄┐ ╎ ┏┅┅┓ ┋ ▍ ╲╱╲╱╳╳╳
║│╱ ╲│║ │║ ║│ ││ │ ││ │║ ┃ ║│ ┃│ ╽ │┃ ░░▒▒▓▓██ ┊ ┆ ╎ ╏ ┇ ┋ ▎
║└─╥─┘║ │╚═╤═╝│ │╘═╪═╛│ │╙─╀─╜│ ┃└─╂─┘┃ ░░▒▒▓▓██ ┊ ┆ ╎ ╏ ┇ ┋ ▏
╚══╩══╝ └──┴──┘ ╰──┴──╯ ╰──┴──╯ ┗━━┻━━┛ ▗▄▖▛▀▜ └╌╌┘ ╎ ┗╍╍┛ ┋ ▁▂▃▄▅▆▇█
▝▀▘▙▄▟

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? *Unicode Transcriptions* Notes <#Notes>
Glyphs <http://www.macchiato.com/unicode/show.html> | Samples
<http://www.macchiato.com/unicode/Unicode_transcriptions.html> | Charts
<http://www.macchiato.com/unicode/charts.html> | UTF
<http://www.macchiato.com/unicode/convert.html> | Forms
<http://www-4.ibm.com/software/developer/library/utfencodingforms/> |
Home <http://www.macchiato.com>.
<http://member.linkexchange.com/cgi-bin/fc/fastcounter-login?750641>
Name Text Image
Arabic (Arabic) يونِكود ?
Arabic (Persian) یونی‌کُد / ?/
Armenian Յունիկօդ
Bengali য়ূনিকোড
Bopomofo ㄊㄨㄥ˅ ㄧˋ ㄇㄚ˅
ㄨㄢˋ ㄍㄨㄛˊ ㄇㄚ˅
Braille
Buhid
Canadian Aboriginal ᔫᗂᑰᑦ
Cherokee ᏳᏂᎪᏛ
Cypriot
Cyrillic (Russian) Юникод ?
Deseret (English) ???????
Devanagari (Hindi) यूनिकोड ?
Ethiopic ዩኒኮድ
Georgian უნიკოდი ?
Gothic
Greek Γιούνικοντ
Gujarati યૂનિકોડ
Gurmukhi ਯੂਨਿਕੋਡ
Han (Chinese) 统一码 ?
統一碼 ?
万国码 ?
萬國碼 ?
Hangul 유니코드
Hanunoo
Hebrew יוניקוד
Hebrew (pointed) יוּנִיקוׁד
Hebrew (Yiddish) יוניקאָד ?
Hiragana (Japanese) ゆにこおど
Katakana (Japanese) ユニコード ?
Kannada ಯೂನಿಕೋಡ್
Khmer យូនីគោដ
Lao
Latin Unicode Unicode
Latin (IPA <#English_Pronunciation>) ˈjunɪˌkoːd ?
Latin (Am. Dict. <#American_Dictionary>) Ūnĭcōde̽ ?
Limbu
Linear B
Malayalam യൂനികോഡ്
Mongolian
Myanmar
Ogham ᚔᚒᚅᚔᚉᚑᚇ / /
Old Italic
Oriya ୟୂନିକୋଡ
Osmanya
Runic (Anglo-Saxon) ᛡᚢᚾᛁᚳᚩᛞ
Shavian
Sinhala යණනිකෞද්
Syriac ܝܘܢܝܩܘܕ
Tagbanwa
Tagalog
Tai Le
Tamil யூனிகோட்
Telugu యూనికోడ్
Thaana
Thai ยูนืโคด
Tibetan (Dzongkha) ཨུ་ནི་ཀོཌྲ།
Ugaritic
Yi
Notes:
There are different ways to transcribe the word “Unicode”, depending on
the language and script. In some cases there is only one language that
customarily uses a given script; in others there are many languages. The
goal here is at a minimum to collect at least one transcription for each
script in a language customarily written in that script, with more
languages if possible. If the transcription is the same for multiple
languages in a script, then a single representative language is used.
Still missing are transcriptions for the items above in RED (in at least
one language). I would appreciate any other transcriptions, or
corrections for the ones listed here. Send to mark3@macchiato.com
<mailto:mark3@macchiato.com>, using the directions below:
* *Supplying Missing Items*
o Most Latin-script languages will follow the spelling, and
change the pronunciation. For any that would not, it would
be good to have the alternate spelling.
o For non-Latin scripts the goal is to match the English
pronunciation — /*not*/ spelling. Above is the IPA <#IPA>
(in phonemic transcription) that should be matched as
closely as possible (without sounding affected in the target
language)
o Text would be best in either the UTF-8 text, or the code
points in hex HTML. E.g. either of the following:
+ "Юникод"
+ "&#x042E;&#x043D;&#x0438;&#x043A;&#x043E;&#x0434;"
+ Note: for / supplementary characters/
<http://www.unicode.org/glossary/#supplementary_character>,
there should be one hex number per code point, not two
surrogates
<http://www.unicode.org/glossary/#surrogate_code_point>:
# &#x10000; /*not*/ &#xD800;&xDC00;
o If you have a good font, I'd also appreciate a GIF. It
should be *96 x 24* bits, with the text centered, in black
on white (plus grays if smoothed).
* *Other Comments*
o Because some browsers won't handle the text, both text and
GIF image are supplied. If you cant read the text columns,
see Display Problems
<http://www.unicode.org/help/display_problems.html>.
o The Chinese versions (inc. Bopomofo) are translations, not
transcriptions, since "transcription in Chinese is pretty
lame" [J. Becker].
o There are other "translations" of Unicode that may be in
use, such as the Vietnamese "Thống Nhất Mã".
o For sample pages in different languages on the Unicode site,
see What is Unicode?
<http://www.unicode.org/unicode/standard/WhatIsUnicode.html>
o Americans are not generally used to IPA, and find a variety
of different systems in their dictionaries. This one leaves
the base letters as they are, and uses diacritics for
pronunciation.
* *Etymology of /Unicode/*
o Coined by J. Becker. Not related to previous usages, such as:
+ A telegraphic code in which one word or set of letters
represents a sentence or phrase; a telegram or message
in this. (late 19th century, OED)
o According to my references, the prefix "uni" is directly
from Latin while the word "code" is through French.
o The original Indo-European apparently would have been
*oino-kau-do ("one strike give"): *kau apparently being
related to such English words as: hew, haggle, hoe, hag,
hay, hack, caudad, caudal, caudate, caudex, coda, codex,
codicil, coward, incus, and Kovač (personal name: "smith").
+ I will leave the exact derivations to the exegetes,
but I like the association with "haggle" myself.
* *Contributions*
o This draws on contributions or comments from:
+ Dixon Au
+ Joe Becker
+ Maurice Bauhahn
+ Abel Cheung
+ Peter Constable
+ Michael Everson
+ Christopher John Fynn
+ Michael Kaplan
+ George Kiraz
+ Abdul Malik
+ Siva Nataraja
+ Roozbeh Pournader
+ Jonathan Rosenne
+ Jungshik Shin
------------------------------------------------------------------------
Terms of Use <http://www.macchiato.com/terms_of_use.html>. Last updated:
MED - 04/20/2003 15:30:33.
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Sentences that contain all letters commonly used in a language
--------------------------------------------------------------
Markus Kuhn <http://www.cl.cam.ac.uk/~mgk25/> -- 2001-09-02
This file is UTF-8 encoded.
Danish (da)
---------
Quizdeltagerne spiste jordbær med fløde, mens cirkusklovnen
Wolther spillede på xylofon.
(= Quiz contestants were eating strawbery with cream while Wolther
the circus clown played on xylophone.)
German (de)
-----------
Falsches Üben von Xylophonmusik quält jeden größeren Zwerg
(= Wrongful practicing of xylophone music tortures every larger dwarf)
Zwölf Boxkämpfer jagten Eva quer über den Sylter Deich
(= Twelve boxing fighters hunted Eva across the dike of Sylt)
Heizölrückstoßabdämpfung
(= fuel oil recoil absorber)
(jqvwxy missing, but all non-ASCII letters in one word)
English (en)
------------
The quick brown fox jumps over the lazy dog
Spanish (es)
------------
El pingüino Wenceslao hizo kilómetros bajo exhaustiva lluvia y
frío, añoraba a su querido cachorro.
(Contains every letter and every accent, but not every combination
of vowel + acute.)
French (fr)
-----------
Portez ce vieux whisky au juge blond qui fume sur son île intérieure, à
côté de l'alcôve ovoïde, où les bûches se consument dans l'âtre, ce
qui lui permet de penser à la cænogenèse de l'être dont il est question
dans la cause ambiguë entendue à Moÿ, dans un capharnaüm qui,
pense-t-il, diminue çà et là la qualité de son œuvre.
l'île exiguë
Où l'obèse jury mûr
Fête l'haï volapük,
Âne ex aéquo au whist,
Ôtez ce vœu déçu.
Le cœur déçu mais l'âme plutôt naïve, Louÿs rêva de crapaüter en
canoë au delà des îles, près du mälström où brûlent les novæ.
Irish Gaelic (ga)
-----------------
D'fhuascail Íosa, Úrmhac na hÓighe Beannaithe, pór Éava agus Ádhaimh
Hungarian (hu)
--------------
Árvíztűrő tükörfúrógép
(= flood-proof mirror-drilling machine, only all non-ASCII letters)
Icelandic (is)
--------------
Kæmi ný öxi hér ykist þjófum nú bæði víl og ádrepa
Sævör grét áðan því úlpan var ónýt
(some ASCII letters missing)
Japanese (jp)
-------------
Hiragana: (Iroha)
いろはにほへとちりぬるを
わかよたれそつねならむ
うゐのおくやまけふこえて
あさきゆめみしゑひもせす
Katakana:
イロハニホヘト チリヌルヲ ワカヨタレソ ツネナラム
ウヰノオクヤマ ケフコエテ アサキユメミシ ヱヒモセスン
Hebrew (iw)
-----------
? דג סקרן שט בים מאוכזב ולפתע מצא לו חברה איך הקליטה
Polish (pl)
-----------
Pchnąć w tę łódź jeża lub ośm skrzyń fig
(= To push a hedgehog or eight bins of figs in this boat)
Russian (ru)
------------
В чащах юга жил бы цитрус? Да, но фальшивый экземпляр!
(= Would a citrus live in the bushes of south? Yes, but only a fake one!)
Thai (th)
---------
[--------------------------|------------------------]
๏ เป็นมนุษย์สุดประเสริฐเลิศคุณค่า กว่าบรรดาฝูงสัตว์เดรัจฉาน
จงฝ่าฟันพัฒนาวิชาการ อย่าล้างผลาญฤๅเข่นฆ่าบีฑาใคร
ไม่ถือโทษโกรธแช่งซัดฮึดฮัดด่า หัดอภัยเหมือนกีฬาอัชฌาสัย
ปฏิบัติประพฤติกฎกำหนดใจ พูดจาให้จ๊ะๆ จ๋าๆ น่าฟังเอย ฯ
[The copyright for the Thai example is owned by The Computer
Association of Thailand under the Royal Patronage of His Majesty the
King.]
Please let me know if you find others! Special thanks to the people
from all over the world who contributed these sentences.

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#include "../../source/utf8.h"
using namespace utf8;
#include <string>
#include <iostream>
#include <fstream>
#include <algorithm>
using namespace std;
const unsigned INVALID_LINES[] = { 75, 76, 83, 84, 85, 93, 102, 103, 105, 106, 107, 108, 109, 110, 114, 115, 116, 117, 124, 125, 130, 135, 140, 145, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 169, 175, 176, 177, 207, 208, 209, 210, 211, 220, 221, 222, 223, 224, 232, 233, 234, 235, 236, 247, 248, 249, 250, 251, 252, 253, 257, 258, 259, 260, 261, 262, 263, 264};
const unsigned* INVALID_LINES_END = INVALID_LINES + sizeof(INVALID_LINES)/sizeof(unsigned);
int main(int argc, char** argv)
{
string test_file_path;
if (argc == 2)
test_file_path = argv[1];
else {
cout << "Wrong number of arguments" << endl;
exit(0);
}
// Open the test file
ifstream fs8(test_file_path.c_str());
if (!fs8.is_open()) {
cout << "Could not open " << test_file_path << endl;
return 0;
}
// Read it line by line
unsigned int line_count = 0;
char byte;
while (!fs8.eof()) {
string line;
while ((byte = static_cast<char>(fs8.get())) != '\n' && !fs8.eof())
line.push_back(byte);
line_count++;
bool expected_valid = (find(INVALID_LINES, INVALID_LINES_END, line_count) == INVALID_LINES_END);
// Print out lines that contain unexpected invalid UTF-8
if (!is_valid(line.begin(), line.end())) {
if (expected_valid)
cout << "Unexpected invalid utf-8 at line " << line_count << '\n';
// try fixing it:
string fixed_line;
replace_invalid(line.begin(), line.end(), back_inserter(fixed_line));
if (!is_valid(fixed_line.begin(), fixed_line.end()))
cout << "replace_invalid() resulted in an invalid utf-8 at line " << line_count << '\n';
}
else if (!expected_valid)
cout << "Invalid utf-8 NOT detected at line " << line_count << '\n';
}
}

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#include <cstring>
#include <cassert>
#include <vector>
#include "../../source/utf8.h"
using namespace utf8;
using namespace std;
int main()
{
//append
unsigned char u[5] = {0,0,0,0,0};
append(0x0448, u);
assert (u[0] == 0xd1 && u[1] == 0x88 && u[2] == 0 && u[3] == 0 && u[4] == 0);
append(0x65e5, u);
assert (u[0] == 0xe6 && u[1] == 0x97 && u[2] == 0xa5 && u[3] == 0 && u[4] == 0);
append(0x3044, u);
assert (u[0] == 0xe3 && u[1] == 0x81 && u[2] == 0x84 && u[3] == 0 && u[4] == 0);
append(0x10346, u);
assert (u[0] == 0xf0 && u[1] == 0x90 && u[2] == 0x8d && u[3] == 0x86 && u[4] == 0);
//next
const char* twochars = "\xe6\x97\xa5\xd1\x88";
const char* w = twochars;
int cp = next(w, twochars + 6);
assert (cp == 0x65e5);
assert (w == twochars + 3);
const char* threechars = "\xf0\x90\x8d\x86\xe6\x97\xa5\xd1\x88";
w = threechars;
cp = next(w, threechars + 9);
assert (cp == 0x10346);
assert (w == threechars + 4);
cp = next(w, threechars + 9);
assert (cp == 0x65e5);
assert (w == threechars + 7);
cp = next(w, threechars + 9);
assert (cp == 0x0448);
assert (w == threechars + 9);
//peek_next
const char* const cw = twochars;
cp = peek_next(cw, cw + 6);
assert (cp == 0x65e5);
assert (cw == twochars);
//prior
w = twochars + 3;
cp = prior (w, twochars);
assert (cp == 0x65e5);
assert (w == twochars);
w = threechars + 9;
cp = prior(w, threechars);
assert (cp == 0x0448);
assert (w == threechars + 7);
cp = prior(w, threechars);
assert (cp == 0x65e5);
assert (w == threechars + 4);
cp = prior(w, threechars);
assert (cp == 0x10346);
assert (w == threechars);
//previous (deprecated)
w = twochars + 3;
cp = previous (w, twochars - 1);
assert (cp == 0x65e5);
assert (w == twochars);
w = threechars + 9;
cp = previous(w, threechars - 1);
assert (cp == 0x0448);
assert (w == threechars + 7);
cp = previous(w, threechars -1);
assert (cp == 0x65e5);
assert (w == threechars + 4);
cp = previous(w, threechars - 1);
assert (cp == 0x10346);
assert (w == threechars);
// advance
w = twochars;
advance (w, 2, twochars + 6);
assert (w == twochars + 5);
// distance
size_t dist = utf8::distance(twochars, twochars + 5);
assert (dist == 2);
// utf32to8
int utf32string[] = {0x448, 0x65E5, 0x10346, 0};
vector<char> utf8result;
utf32to8(utf32string, utf32string + 3, back_inserter(utf8result));
assert (utf8result.size() == 9);
// try it with the return value;
char* utf8_end = utf32to8(utf32string, utf32string + 3, &utf8result[0]);
assert (utf8_end == &utf8result[0] + 9);
//utf8to32
vector<int> utf32result;
utf8to32(twochars, twochars + 5, back_inserter(utf32result));
assert (utf32result.size() == 2);
// try it with the return value;
int* utf32_end = utf8to32(twochars, twochars + 5, &utf32result[0]);
assert (utf32_end == &utf32result[0] + 2);
//utf16to8
unsigned short utf16string[] = {0x41, 0x0448, 0x65e5, 0xd834, 0xdd1e};
utf8result.clear();
utf16to8(utf16string, utf16string + 5, back_inserter(utf8result));
assert (utf8result.size() == 10);
// try it with the return value;
utf8_end = utf16to8 (utf16string, utf16string + 5, &utf8result[0]);
assert (utf8_end == &utf8result[0] + 10);
//utf8to16
char utf8_with_surrogates[] = "\xe6\x97\xa5\xd1\x88\xf0\x9d\x84\x9e";
vector <unsigned short> utf16result;
utf8to16(utf8_with_surrogates, utf8_with_surrogates + 9, back_inserter(utf16result));
assert (utf16result.size() == 4);
assert (utf16result[2] == 0xd834);
assert (utf16result[3] == 0xdd1e);
// try it with the return value;
unsigned short* utf16_end = utf8to16 (utf8_with_surrogates, utf8_with_surrogates + 9, &utf16result[0]);
assert (utf16_end == &utf16result[0] + 4);
//find_invalid
char utf_invalid[] = "\xe6\x97\xa5\xd1\x88\xfa";
char* invalid = find_invalid(utf_invalid, utf_invalid + 6);
assert (invalid == utf_invalid + 5);
//is_valid
bool bvalid = is_valid(utf_invalid, utf_invalid + 6);
assert (bvalid == false);
bvalid = is_valid(utf8_with_surrogates, utf8_with_surrogates + 9);
assert (bvalid == true);
//starts_with_bom
unsigned char byte_order_mark[] = {0xef, 0xbb, 0xbf};
bool bbom = starts_with_bom(byte_order_mark, byte_order_mark + sizeof(byte_order_mark));
assert (bbom == true);
bool no_bbom = starts_with_bom(threechars, threechars + sizeof(threechars));
assert (no_bbom == false);
//is_bom
bool unsafe_bbom = is_bom(byte_order_mark);
assert (unsafe_bbom == true);
//replace_invalid
char invalid_sequence[] = "a\x80\xe0\xa0\xc0\xaf\xed\xa0\x80z";
vector<char> replace_invalid_result(50);
replace_invalid (invalid_sequence, invalid_sequence + sizeof(invalid_sequence), replace_invalid_result.begin(), '?');
bvalid = is_valid(replace_invalid_result.begin(), replace_invalid_result.end());
assert (bvalid);
const char* fixed_invalid_sequence = "a????z";
assert (std::equal(replace_invalid_result.begin(), replace_invalid_result.begin() + sizeof(fixed_invalid_sequence), fixed_invalid_sequence));
// iterator
utf8::iterator<const char*> it(threechars, threechars, threechars + 9);
utf8::iterator<const char*> it2 = it;
assert (it2 == it);
assert (*it == 0x10346);
assert (*(++it) == 0x65e5);
assert ((*it++) == 0x65e5);
assert (*it == 0x0448);
assert (it != it2);
utf8::iterator<const char*> endit (threechars + 9, threechars, threechars + 9);
assert (++it == endit);
assert (*(--it) == 0x0448);
assert ((*it--) == 0x0448);
assert (*it == 0x65e5);
assert (--it == utf8::iterator<const char*>(threechars, threechars, threechars + 9));
assert (*it == 0x10346);
//////////////////////////////////////////////////////////
//// Unchecked variants
//////////////////////////////////////////////////////////
//append
memset(u, 0, 5);
append(0x0448, u);
assert (u[0] == 0xd1 && u[1] == 0x88 && u[2] == 0 && u[3] == 0 && u[4] == 0);
append(0x65e5, u);
assert (u[0] == 0xe6 && u[1] == 0x97 && u[2] == 0xa5 && u[3] == 0 && u[4] == 0);
append(0x10346, u);
assert (u[0] == 0xf0 && u[1] == 0x90 && u[2] == 0x8d && u[3] == 0x86 && u[4] == 0);
//next
w = twochars;
cp = unchecked::next(w);
assert (cp == 0x65e5);
assert (w == twochars + 3);
w = threechars;
cp = unchecked::next(w);
assert (cp == 0x10346);
assert (w == threechars + 4);
cp = unchecked::next(w);
assert (cp == 0x65e5);
assert (w == threechars + 7);
cp = unchecked::next(w);
assert (cp == 0x0448);
assert (w == threechars + 9);
//peek_next
cp = unchecked::peek_next(cw);
assert (cp == 0x65e5);
assert (cw == twochars);
//previous (calls prior internally)
w = twochars + 3;
cp = unchecked::previous (w);
assert (cp == 0x65e5);
assert (w == twochars);
w = threechars + 9;
cp = unchecked::previous(w);
assert (cp == 0x0448);
assert (w == threechars + 7);
cp = unchecked::previous(w);
assert (cp == 0x65e5);
assert (w == threechars + 4);
cp = unchecked::previous(w);
assert (cp == 0x10346);
assert (w == threechars);
// advance
w = twochars;
unchecked::advance (w, 2);
assert (w == twochars + 5);
// distance
dist = unchecked::distance(twochars, twochars + 5);
assert (dist == 2);
// utf32to8
utf8result.clear();
unchecked::utf32to8(utf32string, utf32string + 3, back_inserter(utf8result));
assert (utf8result.size() == 9);
// try it with the return value;
utf8_end = utf32to8(utf32string, utf32string + 3, &utf8result[0]);
assert(utf8_end == &utf8result[0] + 9);
//utf8to32
utf32result.clear();
unchecked::utf8to32(twochars, twochars + 5, back_inserter(utf32result));
assert (utf32result.size() == 2);
// try it with the return value;
utf32_end = utf8to32(twochars, twochars + 5, &utf32result[0]);
assert (utf32_end == &utf32result[0] + 2);
//utf16to8
utf8result.clear();
unchecked::utf16to8(utf16string, utf16string + 5, back_inserter(utf8result));
assert (utf8result.size() == 10);
// try it with the return value;
utf8_end = utf16to8 (utf16string, utf16string + 5, &utf8result[0]);
assert (utf8_end == &utf8result[0] + 10);
//utf8to16
utf16result.clear();
unchecked::utf8to16(utf8_with_surrogates, utf8_with_surrogates + 9, back_inserter(utf16result));
assert (utf16result.size() == 4);
assert (utf16result[2] == 0xd834);
assert (utf16result[3] == 0xdd1e);
// try it with the return value;
utf16_end = utf8to16 (utf8_with_surrogates, utf8_with_surrogates + 9, &utf16result[0]);
assert (utf16_end == &utf16result[0] + 4);
// iterator
utf8::unchecked::iterator<const char*> un_it(threechars);
utf8::unchecked::iterator<const char*> un_it2 = un_it;
assert (un_it2 == un_it);
assert (*un_it == 0x10346);
assert (*(++un_it) == 0x65e5);
assert ((*un_it++) == 0x65e5);
assert (un_it != un_it2);
assert (*un_it == 0x0448);
utf8::unchecked::iterator<const char*> un_endit (threechars + 9);
assert (++un_it == un_endit);
assert (*(--un_it) == 0x0448);
assert ((*un_it--) == 0x0448);
assert (*un_it == 0x65e5);
assert (--un_it == utf8::unchecked::iterator<const char*>(threechars));
assert (*un_it == 0x10346);
}

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#include "../../source/utf8.h"
using namespace utf8;
#include <string>
#include <iostream>
#include <fstream>
#include <vector>
using namespace std;
int main(int argc, char** argv)
{
if (argc != 2) {
cout << "\nUsage: utfreader filename\n";
return 0;
}
const char* TEST_FILE_PATH = argv[1];
// Open the test file
ifstream fs8(TEST_FILE_PATH);
if (!fs8.is_open()) {
cout << "Could not open " << TEST_FILE_PATH << endl;
return 0;
}
// Read it line by line
unsigned int line_count = 0;
char byte;
while (!fs8.eof()) {
string line;
while ((byte = static_cast<char>(fs8.get())) != '\n' && !fs8.eof())
line.push_back(byte);
line_count++;
// Play around with each line and convert it to utf16
string::iterator line_start = line.begin();
string::iterator line_end = line.end();
line_end = find_invalid(line_start, line_end);
if (line_end != line.end())
cout << "Line " << line_count << ": Invalid utf-8 at byte " << int(line.end() - line_end) << '\n';
// Convert it to utf-16 and write to the file
vector<unsigned short> utf16_line;
utf8to16(line_start, line_end, back_inserter(utf16_line));
// Back to utf-8 and compare it to the original line.
string back_to_utf8;
utf16to8(utf16_line.begin(), utf16_line.end(), back_inserter(back_to_utf8));
if (back_to_utf8.compare(string(line_start, line_end)) != 0)
cout << "Line " << line_count << ": Conversion to UTF-16 and back failed" << '\n';
// Now, convert it to utf-32, back to utf-8 and compare
vector <unsigned> utf32_line;
utf8to32(line_start, line_end, back_inserter(utf32_line));
back_to_utf8.clear();
utf32to8(utf32_line.begin(), utf32_line.end(), back_inserter(back_to_utf8));
if (back_to_utf8.compare(string(line_start, line_end)) != 0)
cout << "Line " << line_count << ": Conversion to UTF-32 and back failed" << '\n';
// Now, iterate and back
unsigned char_count = 0;
string::iterator it = line_start;
while (it != line_end) {
unsigned int next_cp = peek_next(it, line_end);
if (next(it, line_end) != next_cp)
cout << "Line " << line_count << ": Error: peek_next gave a different result than next" << '\n';
char_count++;
}
if (char_count != utf32_line.size())
cout << "Line " << line_count << ": Error in iterating with next - wrong number of characters" << '\n';
string::iterator adv_it = line_start;
utf8::advance(adv_it, char_count, line_end);
if (adv_it != line_end)
cout << "Line " << line_count << ": Error in advance function" << '\n';
if (string::size_type(utf8::distance(line_start, line_end)) != char_count)
cout << "Line " << line_count << ": Error in distance function" << '\n';
while (it != line_start) {
previous(it, line.rend().base());
char_count--;
}
if (char_count != 0)
cout << "Line " << line_count << ": Error in iterating with previous - wrong number of characters" << '\n';
// Try utf8::iterator
utf8::iterator<string::iterator> u8it(line_start, line_start, line_end);
if (!utf32_line.empty() && *u8it != utf32_line.at(0))
cout << "Line " << line_count << ": Error in utf::iterator * operator" << '\n';
if (std::distance(u8it, utf8::iterator<string::iterator>(line_end, line_start, line_end)) != static_cast<int>(utf32_line.size()))
cout << "Line " << line_count << ": Error in using utf::iterator with std::distance - wrong number of characters" << '\n';
std::advance(u8it, utf32_line.size());
if (u8it != utf8::iterator<string::iterator>(line_end, line_start, line_end))
cout << "Line " << line_count << ": Error in using utf::iterator with std::advance" << '\n';
//======================== Now, the unchecked versions ======================
// Convert it to utf-16 and compare to the checked version
vector<unsigned short> utf16_line_unchecked;
unchecked::utf8to16(line_start, line_end, back_inserter(utf16_line_unchecked));
if (utf16_line != utf16_line_unchecked)
cout << "Line " << line_count << ": Error in unchecked::utf8to16" << '\n';
// Back to utf-8 and compare it to the original line.
back_to_utf8.clear();
unchecked::utf16to8(utf16_line_unchecked.begin(), utf16_line_unchecked.end(), back_inserter(back_to_utf8));
if (back_to_utf8.compare(string(line_start, line_end)) != 0)
cout << "Line " << line_count << ": Unchecked conversion to UTF-16 and back failed" << '\n';
// Now, convert it to utf-32, back to utf-8 and compare
vector <unsigned> utf32_line_unchecked;
unchecked::utf8to32(line_start, line_end, back_inserter(utf32_line_unchecked));
if (utf32_line != utf32_line_unchecked)
cout << "Line " << line_count << ": Error in unchecked::utf8to32" << '\n';
back_to_utf8.clear();
unchecked::utf32to8(utf32_line.begin(), utf32_line.end(), back_inserter(back_to_utf8));
if (back_to_utf8.compare(string(line_start, line_end)) != 0)
cout << "Line " << line_count << ": Unchecked conversion to UTF-32 and back failed" << '\n';
// Now, iterate and back
char_count = 0;
it = line_start;
while (it != line_end) {
unsigned int next_cp = unchecked::peek_next(it);
if (unchecked::next(it) != next_cp)
cout << "Line " << line_count << ": Error: unchecked::peek_next gave a different result than unchecked::next" << '\n';;
char_count++;
}
if (char_count != utf32_line.size())
cout << "Line " << line_count << ": Error in iterating with unchecked::next - wrong number of characters" << '\n';
adv_it = line_start;
utf8::unchecked::advance(adv_it, char_count);
if (adv_it != line_end)
cout << "Line " << line_count << ": Error in unchecked::advance function" << '\n';
if (string::size_type(utf8::unchecked::distance(line_start, line_end)) != char_count)
cout << "Line " << line_count << ": Error in unchecked::distance function" << '\n';
while (it != line_start) {
unchecked::previous(it);
char_count--;
}
if (char_count != 0)
cout << "Line " << line_count << ": Error in iterating with unchecked::previous - wrong number of characters" << '\n';
// Try utf8::unchecked::iterator
utf8::unchecked::iterator<string::iterator> un_u8it(line_start);
if (!utf32_line.empty() && *un_u8it != utf32_line.at(0))
cout << "Line " << line_count << ": Error in utf::unchecked::iterator * operator" << '\n';
if (std::distance(un_u8it, utf8::unchecked::iterator<string::iterator>(line_end)) != static_cast<int>(utf32_line.size()))
cout << "Line " << line_count << ": Error in using utf::unchecked::iterator with std::distance - wrong number of characters" << '\n';
std::advance(un_u8it, utf32_line.size());
if (un_u8it != utf8::unchecked::iterator<string::iterator>(line_end))
cout << "Line " << line_count << ": Error in using utf::unchecked::iterator with std::advance" << '\n';
}
}