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Added boost header

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This commit is contained in:
Christophe Riccio
2012-01-08 01:26:07 +00:00
parent 9c3faaca40
commit c7d752cdf8
8946 changed files with 1732316 additions and 0 deletions
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test/external/boost/locale/format.hpp vendored Normal file
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//
// Copyright (c) 2009-2011 Artyom Beilis (Tonkikh)
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_LOCALE_FORMAT_HPP_INCLUDED
#define BOOST_LOCALE_FORMAT_HPP_INCLUDED
#include <boost/locale/config.hpp>
#ifdef BOOST_MSVC
# pragma warning(push)
# pragma warning(disable : 4275 4251 4231 4660)
#endif
#include <boost/locale/message.hpp>
#include <boost/locale/formatting.hpp>
#include <sstream>
namespace boost {
namespace locale {
///
/// \defgroup format Format
///
/// This module provides printf like functionality integrated into iostreams and suitable for localization
///
/// @{
///
/// \cond INTERNAL
namespace details {
template<typename CharType>
struct formattible {
typedef std::basic_ostream<CharType> stream_type;
typedef void (*writer_type)(stream_type &output,void const *ptr);
formattible() :
pointer_(0),
writer_(&formattible::void_write)
{
}
formattible(formattible const &other) :
pointer_(other.pointer_),
writer_(other.writer_)
{
}
formattible const &operator=(formattible const &other)
{
if(this != &other) {
pointer_=other.pointer_;
writer_=other.writer_;
}
return *this;
}
template<typename Type>
formattible(Type const &value)
{
pointer_ = static_cast<void const *>(&value);
writer_ = &write<Type>;
}
template<typename Type>
formattible const &operator=(Type const &other)
{
*this = formattible(other);
return *this;
}
friend stream_type &operator<<(stream_type &out,formattible const &fmt)
{
fmt.writer_(out,fmt.pointer_);
return out;
}
private:
static void void_write(stream_type &output,void const * /*ptr*/)
{
CharType empty_string[1]={0};
output<<empty_string;
}
template<typename Type>
static void write(stream_type &output,void const *ptr)
{
output << *static_cast<Type const *>(ptr);
}
void const *pointer_;
writer_type writer_;
}; // formattible
class BOOST_LOCALE_DECL format_parser {
public:
format_parser(std::ios_base &ios,void *,void (*imbuer)(void *,std::locale const &));
~format_parser();
unsigned get_position();
void set_one_flag(std::string const &key,std::string const &value);
template<typename CharType>
void set_flag_with_str(std::string const &key,std::basic_string<CharType> const &value)
{
if(key=="ftime" || key=="strftime") {
as::strftime(ios_);
ios_info::get(ios_).date_time_pattern(value);
}
}
void restore();
private:
void imbue(std::locale const &);
format_parser(format_parser const &);
void operator=(format_parser const &);
std::ios_base &ios_;
struct data;
std::auto_ptr<data> d;
};
}
/// \endcond
///
/// \brief a printf like class that allows type-safe and locale aware message formatting
///
/// This class creates a formatted message similar to printf or boost::format and receives
/// formatted entries via operator %.
///
/// For example
/// \code
/// cout << format("Hello {1}, you are {2} years old") % name % age << endl;
/// \endcode
///
/// Formatting is enclosed between curly brackets \c { \c } and defined by a comma separated list of flags in the format key[=value]
/// value may also be text included between single quotes \c ' that is used for special purposes where inclusion of non-ASCII
/// text is allowed
///
/// Including of literal \c { and \c } is possible by specifying double brackets \c {{ and \c }} accordingly.
///
///
/// For example:
///
/// \code
/// cout << format("The height of water at {1,time} is {2,num=fixed,precision=3}") % time % height;
/// \endcode
///
/// The special key -- a number without a value defines the position of an input parameter.
/// List of keys:
/// - \c [0-9]+ -- digits, the index of a formatted parameter -- mandatory key.
/// - \c num or \c number -- format a number. Optional values are:
/// - \c hex -- display hexadecimal number
/// - \c oct -- display in octal format
/// - \c sci or \c scientific -- display in scientific format
/// - \c fix or \c fixed -- display in fixed format
/// .
/// For example \c number=sci
/// - \c cur or \c currency -- format currency. Optional values are:
///
/// - \c iso -- display using ISO currency symbol.
/// - \c nat or \c national -- display using national currency symbol.
/// .
/// - \c per or \c percent -- format percent value.
/// - \c date, \c time , \c datetime or \c dt -- format date, time or date and time. Optional values are:
/// - \c s or \c short -- display in short format
/// - \c m or \c medium -- display in medium format.
/// - \c l or \c long -- display in long format.
/// - \c f or \c full -- display in full format.
/// .
/// - \c ftime with string (quoted) parameter -- display as with \c strftime see, \c as::ftime manipulator
/// - \c spell or \c spellout -- spell the number.
/// - \c ord or \c ordinal -- format ordinal number (1st, 2nd... etc)
/// - \c left or \c < -- align to left.
/// - \c right or \c > -- align to right.
/// - \c width or \c w -- set field width (requires parameter).
/// - \c precision or \c p -- set precision (requires parameter).
/// - \c locale -- with parameter -- switch locale for current operation. This command generates locale
/// with formatting facets giving more fine grained control of formatting. For example:
/// \code
/// cout << format("Today {1,date} ({1,date,locale=he_IL.UTF-8@calendar=hebrew,date} Hebrew Date)") % date;
/// \endcode
/// - \c timezone or \c tz -- the name of the timezone to display the time in. For example:\n
/// \code
/// cout << format("Time is: Local {1,time}, ({1,time,tz=EET} Eastern European Time)") % date;
/// \endcode
/// - \c local - display the time in local time
/// - \c gmt - display the time in UTC time scale
/// \code
/// cout << format("Local time is: {1,time,local}, universal time is {1,time,gmt}") % time;
/// \endcode
///
///
/// Invalid formatting strings are slightly ignored. This would prevent from translator
/// to crash the program in unexpected location.
///
template<typename CharType>
class basic_format {
public:
typedef CharType char_type; ///< Underlying character type
typedef basic_message<char_type> message_type; ///< The translation message type
/// \cond INTERNAL
typedef details::formattible<CharType> formattible_type;
/// \endcond
typedef std::basic_string<CharType> string_type; ///< string type for this type of character
typedef std::basic_ostream<CharType> stream_type; ///< output stream type for this type of character
///
/// Create a format class for \a format_string
///
basic_format(string_type format_string) :
format_(format_string),
translate_(false),
parameters_count_(0)
{
}
///
/// Create a format class using message \a trans. The message if translated first according
/// to the rules of target locale and then interpreted as format string
///
basic_format(message_type const &trans) :
message_(trans),
translate_(true),
parameters_count_(0)
{
}
///
/// Add new parameter to format list. The object should be a type
/// with defined expression out << object where \c out is \c std::basic_ostream.
///
template<typename Formattible>
basic_format &operator % (Formattible const &object)
{
add(formattible_type(object));
return *this;
}
///
/// Format a string using a locale \a loc
///
string_type str(std::locale const &loc = std::locale()) const
{
std::basic_ostringstream<CharType> buffer;
buffer.imbue(loc);
write(buffer);
return buffer.str();
}
///
/// write a formatted string to output stream \a out using out's locale
///
void write(stream_type &out) const
{
string_type format;
if(translate_)
format = message_.str(out.getloc(),ios_info::get(out).domain_id());
else
format = format_;
format_output(out,format);
}
private:
class format_guard {
public:
format_guard(details::format_parser &fmt) :
fmt_(&fmt),
restored_(false)
{
}
void restore()
{
if(restored_)
return;
fmt_->restore();
restored_ = true;
}
~format_guard()
{
try {
restore();
}
catch(...) {
}
}
private:
details::format_parser *fmt_;
bool restored_;
};
void format_output(stream_type &out,string_type const &sformat) const
{
char_type obrk='{';
char_type cbrk='}';
char_type eq='=';
char_type comma=',';
char_type quote='\'';
size_t pos = 0;
size_t size=sformat.size();
CharType const *format=sformat.c_str();
while(format[pos]!=0) {
if(format[pos] != obrk) {
if(format[pos]==cbrk && format[pos+1]==cbrk) {
out << cbrk;
pos+=2;
}
else {
out<<format[pos];
pos++;
}
continue;
}
if(pos+1 < size && format[pos+1]==obrk) {
out << obrk;
pos+=2;
continue;
}
pos++;
details::format_parser fmt(out,static_cast<void *>(&out),&basic_format::imbue_locale);
format_guard guard(fmt);
while(pos < size) {
std::string key;
std::string svalue;
string_type value;
bool use_svalue = true;
for(;format[pos];pos++) {
char_type c=format[pos];
if(c==comma || c==eq || c==cbrk)
break;
else {
key+=static_cast<char>(c);
}
}
if(format[pos]==eq) {
pos++;
if(format[pos]==quote) {
pos++;
use_svalue = false;
while(format[pos]) {
if(format[pos]==quote) {
if(format[pos+1]==quote) {
value+=quote;
pos+=2;
}
else {
pos++;
break;
}
}
else {
value+=format[pos];
pos++;
}
}
}
else {
char_type c;
while((c=format[pos])!=0 && c!=comma && c!=cbrk) {
svalue+=static_cast<char>(c);
pos++;
}
}
}
if(use_svalue) {
fmt.set_one_flag(key,svalue);
}
else
fmt.set_flag_with_str(key,value);
if(format[pos]==comma) {
pos++;
continue;
}
else if(format[pos]==cbrk) {
unsigned position = fmt.get_position();
out << get(position);
guard.restore();
pos++;
break;
}
else {
guard.restore();
break;
}
}
}
}
//
// Non-copyable
//
basic_format(basic_format const &other);
void operator=(basic_format const &other);
void add(formattible_type const &param)
{
if(parameters_count_ >= base_params_)
ext_params_.push_back(param);
else
parameters_[parameters_count_] = param;
parameters_count_++;
}
formattible_type get(unsigned id) const
{
if(id >= parameters_count_)
return formattible_type();
else if(id >= base_params_)
return ext_params_[id - base_params_];
else
return parameters_[id];
}
static void imbue_locale(void *ptr,std::locale const &l)
{
reinterpret_cast<stream_type *>(ptr)->imbue(l);
}
static unsigned const base_params_ = 8;
message_type message_;
string_type format_;
bool translate_;
formattible_type parameters_[base_params_];
unsigned parameters_count_;
std::vector<formattible_type> ext_params_;
};
///
/// Write formatted message to stream.
///
/// This operator actually causes actual text formatting. It uses the locale of \a out stream
///
template<typename CharType>
std::basic_ostream<CharType> &operator<<(std::basic_ostream<CharType> &out,basic_format<CharType> const &fmt)
{
fmt.write(out);
return out;
}
///
/// Definition of char based format
///
typedef basic_format<char> format;
///
/// Definition of wchar_t based format
///
typedef basic_format<wchar_t> wformat;
#ifdef BOOST_HAS_CHAR16_T
///
/// Definition of char16_t based format
///
typedef basic_format<char16_t> u16format;
#endif
#ifdef BOOST_HAS_CHAR32_T
///
/// Definition of char32_t based format
///
typedef basic_format<char32_t> u32format;
#endif
///
/// @}
///
}
}
#ifdef BOOST_MSVC
#pragma warning(pop)
#endif
#endif
///
/// \example hello.cpp
///
/// Basic example of using various functions provided by this library
///
/// \example whello.cpp
///
/// Basic example of using various functions with wide strings provided by this library
///
///
// vim: tabstop=4 expandtab shiftwidth=4 softtabstop=4