738 lines
33 KiB
C++
738 lines
33 KiB
C++
/*
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* mptStringFormat.h
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* -----------------
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* Purpose: Convert other types to strings.
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* Notes : Currently none.
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* Authors: OpenMPT Devs
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* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
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*/
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#pragma once
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#include "BuildSettings.h"
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#include "mptString.h"
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OPENMPT_NAMESPACE_BEGIN
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// The following section demands a rationale.
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// 1. mpt::fmt::val(), mpt::wfmt::val() and mpt::ufmt::val() mimic the semantics of c++11 std::to_string() and std::to_wstring().
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// There is an important difference though. The c++11 versions are specified in terms of sprintf formatting which in turn
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// depends on the current C locale. This renders these functions unusable in a library context because the current
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// C locale is set by the library-using application and could be anything. There is no way a library can get reliable semantics
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// out of these functions. It is thus better to just avoid them.
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// ToString() and ToWString() are based on iostream internally, but the the locale of the stream is forced to std::locale::classic(),
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// which results in "C" ASCII locale behavior.
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// 2. The full suite of printf-like or iostream like number formatting is generally not required. Instead, a sane subset functionality
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// is provided here.
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// For convenience, mpt::fmt::f(const char *, float) allows formatting a single floating point value with a
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// standard printf-like format string. This itself relies on iostream with classic() locale internally and is thus current locale
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// agnostic.
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// When formatting integers, it is recommended to use mpt::fmt::dec or mpt::fmt::hex. Appending a template argument '<n>' sets the width,
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// the same way as '%nd' would do. Appending a '0' to the function name causes zero-filling as print-like '%0nd' would do. Spelling 'HEX'
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// in upper-case generates upper-case hex digits. If these are not known at compile-time, a more verbose FormatVal(int, format) can be
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// used.
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// 3. mpt::format(format)(...) provides simplified and type-safe message and localization string formatting.
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// The only specifier allowed is '%' followed by a single digit n. It references to n-th parameter after the format string (1-based).
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// This mimics the behaviour of QString::arg() in QT4/5 or MFC AfxFormatString2(). C printf-like functions offer similar functionality
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// with a '%n$TYPE' syntax. In .NET, the syntax is '{n}'. This is useful to support localization strings that can change the parameter
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// ordering.
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// 4. Every function is available for std::string, std::wstring and mpt::ustring. std::string makes no assumption about the encoding, which
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// basically means, it should work for any 7-bit or 8-bit encoding, including for example ASCII, UTF8 or the current locale encoding.
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// std::string std::wstring mpt::ustring mpt::tsrtring CString
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// mpt::fmt mpt::wfmt mpt::ufmt mpt::tfmt mpt::cfmt
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// mpt::format("%1") mpt::wformat(L"%1") mpt::uformat(MPT_ULITERAL(%1) mpt::tformat(_T("%1")) mpt::cformat(_T("%1"))
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// mpt::format("%1") mpt::format(L"%1") mpt::format(MPT_USTRING(%1)) mpt::format(mpt::tstring(_T("%1")) mpt::format(CString(_T("%1"))
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// 5. All functionality here delegates real work outside of the header file so that <sstream> and <locale> do not need to be included when
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// using this functionality.
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// Advantages:
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// - Avoids binary code bloat when too much of iostream operator << gets inlined at every usage site.
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// - Faster compile times because <sstream> and <locale> (2 very complex headers) are not included everywhere.
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// Disadvantages:
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// - Slightly more c++ code is required for delegating work.
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// - As the header does not use iostreams, custom types need to overload mpt::UString instead of iostream operator << to allow for custom type
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// formatting.
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// - std::string, std::wstring and mpt::ustring are returned from somewhat deep cascades of helper functions. Where possible, code is
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// written in such a way that return-value-optimization (RVO) or named-return-value-optimization (NRVO) should be able to eliminate
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// almost all these copies. This should not be a problem for any decent modern compiler (and even less so for a c++11 compiler where
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// move-semantics will kick in if RVO/NRVO fails).
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namespace mpt
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{
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// ToUString() converts various built-in types to a well-defined, locale-independent string representation.
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// This is also used as a type-tunnel pattern for mpt::format.
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// Custom types that need to be converted to strings are encouraged to overload ToUString().
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// fallback to member function ToUString()
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#if MPT_USTRING_MODE_UTF8
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template <typename T> auto ToString(const T & x) -> decltype(mpt::ToCharset(mpt::Charset::UTF8, x.ToUString())) { return mpt::ToCharset(mpt::Charset::UTF8, x.ToUString()); }
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#else
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template <typename T> auto ToString(const T & x) -> decltype(mpt::ToCharset(mpt::CharsetLocaleOrUTF8, x.ToUString())) { return mpt::ToCharset(mpt::CharsetLocaleOrUTF8, x.ToUString()); }
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#endif
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inline std::string ToString(const std::string & x) { return x; }
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inline std::string ToString(const char * const & x) { return x; }
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std::string ToString(const char &x) = delete; // deprecated to catch potential API mis-use, use std::string(1, x) instead
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#if MPT_WSTRING_FORMAT
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std::string ToString(const std::wstring & x) = delete; // Unknown encoding.
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std::string ToString(const wchar_t * const & x) = delete; // Unknown encoding.
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std::string ToString(const wchar_t &x ) = delete; // deprecated to catch potential API mis-use, use std::wstring(1, x) instead
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#endif
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#if MPT_USTRING_MODE_UTF8
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std::string ToString(const mpt::ustring & x) = delete; // Unknown encoding.
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#endif
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#if defined(MPT_WITH_MFC)
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std::string ToString(const CString & x) = delete; // unknown encoding
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#endif // MPT_WITH_MFC
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std::string ToString(const bool & x);
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std::string ToString(const signed char & x);
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std::string ToString(const unsigned char & x);
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std::string ToString(const signed short & x);
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std::string ToString(const unsigned short & x);
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std::string ToString(const signed int & x);
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std::string ToString(const unsigned int & x);
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std::string ToString(const signed long & x);
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std::string ToString(const unsigned long & x);
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std::string ToString(const signed long long & x);
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std::string ToString(const unsigned long long & x);
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std::string ToString(const float & x);
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std::string ToString(const double & x);
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std::string ToString(const long double & x);
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// fallback to member function ToUString()
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template <typename T> auto ToUString(const T & x) -> decltype(x.ToUString()) { return x.ToUString(); }
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inline mpt::ustring ToUString(const mpt::ustring & x) { return x; }
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mpt::ustring ToUString(const std::string & x) = delete; // Unknown encoding.
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mpt::ustring ToUString(const char * const & x) = delete; // Unknown encoding. Note that this also applies to TCHAR in !UNICODE builds as the type is indistinguishable from char. Wrap with CString or FromTcharStr in this case.
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mpt::ustring ToUString(const char & x) = delete; // deprecated to catch potential API mis-use, use std::string(1, x) instead
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#if MPT_WSTRING_FORMAT
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#if MPT_USTRING_MODE_UTF8
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mpt::ustring ToUString(const std::wstring & x);
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#endif
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mpt::ustring ToUString(const wchar_t * const & x);
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mpt::ustring ToUString(const wchar_t & x) = delete; // deprecated to catch potential API mis-use, use std::wstring(1, x) instead
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#endif
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#if defined(MPT_WITH_MFC)
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mpt::ustring ToUString(const CString & x);
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#endif // MPT_WITH_MFC
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mpt::ustring ToUString(const bool & x);
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mpt::ustring ToUString(const signed char & x);
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mpt::ustring ToUString(const unsigned char & x);
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mpt::ustring ToUString(const signed short & x);
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mpt::ustring ToUString(const unsigned short & x);
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mpt::ustring ToUString(const signed int & x);
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mpt::ustring ToUString(const unsigned int & x);
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mpt::ustring ToUString(const signed long & x);
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mpt::ustring ToUString(const unsigned long & x);
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mpt::ustring ToUString(const signed long long & x);
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mpt::ustring ToUString(const unsigned long long & x);
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mpt::ustring ToUString(const float & x);
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mpt::ustring ToUString(const double & x);
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mpt::ustring ToUString(const long double & x);
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#if MPT_WSTRING_FORMAT
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std::wstring ToWString(const std::string & x) = delete; // Unknown encoding.
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std::wstring ToWString(const char * const & x) = delete; // Unknown encoding. Note that this also applies to TCHAR in !UNICODE builds as the type is indistinguishable from char. Wrap with CString or FromTcharStr in this case.
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std::wstring ToWString(const char & x) = delete; // deprecated to catch potential API mis-use, use std::string(1, x) instead
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inline std::wstring ToWString(const std::wstring & x) { return x; }
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inline std::wstring ToWString(const wchar_t * const & x) { return x; }
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std::wstring ToWString(const wchar_t & x) = delete; // deprecated to catch potential API mis-use, use std::wstring(1, x) instead
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#if MPT_USTRING_MODE_UTF8
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std::wstring ToWString(const mpt::ustring & x);
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#endif
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#if defined(MPT_WITH_MFC)
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std::wstring ToWString(const CString & x);
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#endif // MPT_WITH_MFC
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std::wstring ToWString(const bool & x);
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std::wstring ToWString(const signed char & x);
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std::wstring ToWString(const unsigned char & x);
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std::wstring ToWString(const signed short & x);
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std::wstring ToWString(const unsigned short & x);
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std::wstring ToWString(const signed int & x);
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std::wstring ToWString(const unsigned int & x);
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std::wstring ToWString(const signed long & x);
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std::wstring ToWString(const unsigned long & x);
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std::wstring ToWString(const signed long long & x);
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std::wstring ToWString(const unsigned long long & x);
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std::wstring ToWString(const float & x);
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std::wstring ToWString(const double & x);
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std::wstring ToWString(const long double & x);
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// fallback to member function ToUString()
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template <typename T> auto ToWString(const T & x) -> decltype(mpt::ToWide(x.ToUString())) { return mpt::ToWide(x.ToUString()); }
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#endif
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#if defined(MPT_ENABLE_CHARSET_LOCALE)
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template <typename T> struct ToLocaleHelper { mpt::lstring operator () (const T & v) { return mpt::ToLocale(ToUString(v)); } };
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template <> struct ToLocaleHelper<mpt::lstring> { mpt::lstring operator () (const mpt::lstring & v) { return v; } };
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#endif // MPT_ENABLE_CHARSET_LOCALE
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#if defined(MPT_WITH_MFC)
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template <typename T> struct ToCStringHelper { CString operator () (const T & v) { return mpt::ToCString(ToUString(v)); } };
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template <> struct ToCStringHelper<CString> { CString operator () (const CString & v) { return v; } };
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#endif // MPT_WITH_MFC
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template <typename Tstring> struct ToStringTFunctor {};
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template <> struct ToStringTFunctor<std::string> { template <typename T> inline std::string operator() (const T & x) { return ToString(x); } };
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template <> struct ToStringTFunctor<mpt::ustring> { template <typename T> inline mpt::ustring operator() (const T & x) { return ToUString(x); } };
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#if MPT_WSTRING_FORMAT && MPT_USTRING_MODE_UTF8
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template <> struct ToStringTFunctor<std::wstring> { template <typename T> inline std::wstring operator() (const T & x) { return ToWString(x); } };
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#endif
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#if defined(MPT_ENABLE_CHARSET_LOCALE)
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template <> struct ToStringTFunctor<mpt::lstring> { template <typename T> inline mpt::lstring operator() (const T & x) { return mpt::ToLocaleHelper<T>()(x); } };
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#endif // MPT_ENABLE_CHARSET_LOCALE
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#if defined(MPT_WITH_MFC)
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template <> struct ToStringTFunctor<CString> { template <typename T> inline CString operator() (const T & x) { return mpt::ToCStringHelper<T>()(x); } };
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#endif // MPT_WITH_MFC
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template<typename Tstring, typename T> inline Tstring ToStringT(const T & x) { return ToStringTFunctor<Tstring>()(x); }
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struct fmt_base
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{
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enum FormatFlagsEnum
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{
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BaseDec = 0x0001, // base 10 (integers only)
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BaseHex = 0x0002, // base 16 (integers only)
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CaseLow = 0x0010, // lower case hex digits
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CaseUpp = 0x0020, // upper case hex digits
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FillOff = 0x0100, // do not fill up width
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FillNul = 0x0400, // fill up width with zeros
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NotaNrm = 0x1000, // float: normal/default notation
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NotaFix = 0x2000, // float: fixed point notation
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NotaSci = 0x4000, // float: scientific notation
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};
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}; // struct fmt_base
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typedef unsigned int FormatFlags;
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static_assert(sizeof(FormatFlags) >= sizeof(fmt_base::FormatFlagsEnum));
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class FormatSpec;
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std::string FormatVal(const char & x, const FormatSpec & f) = delete; // deprecated to catch potential API mis-use, use std::string(1, x) instead
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#if !defined(MPT_COMPILER_QUIRK_NO_WCHAR)
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std::string FormatVal(const wchar_t & x, const FormatSpec & f) = delete; // deprecated to catch potential API mis-use, use std::wstring(1, x) instead
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#endif // !MPT_COMPILER_QUIRK_NO_WCHAR
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std::string FormatVal(const bool & x, const FormatSpec & f);
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std::string FormatVal(const signed char & x, const FormatSpec & f);
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std::string FormatVal(const unsigned char & x, const FormatSpec & f);
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std::string FormatVal(const signed short & x, const FormatSpec & f);
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std::string FormatVal(const unsigned short & x, const FormatSpec & f);
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std::string FormatVal(const signed int & x, const FormatSpec & f);
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std::string FormatVal(const unsigned int & x, const FormatSpec & f);
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std::string FormatVal(const signed long & x, const FormatSpec & f);
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std::string FormatVal(const unsigned long & x, const FormatSpec & f);
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std::string FormatVal(const signed long long & x, const FormatSpec & f);
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std::string FormatVal(const unsigned long long & x, const FormatSpec & f);
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std::string FormatVal(const float & x, const FormatSpec & f);
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std::string FormatVal(const double & x, const FormatSpec & f);
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std::string FormatVal(const long double & x, const FormatSpec & f);
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mpt::ustring FormatValU(const char & x, const FormatSpec & f) = delete; // deprecated to catch potential API mis-use, use std::string(1, x) instead
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#if !defined(MPT_COMPILER_QUIRK_NO_WCHAR)
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mpt::ustring FormatValU(const wchar_t & x, const FormatSpec & f) = delete; // deprecated to catch potential API mis-use, use std::wstring(1, x) instead
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#endif // !MPT_COMPILER_QUIRK_NO_WCHAR
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mpt::ustring FormatValU(const bool & x, const FormatSpec & f);
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mpt::ustring FormatValU(const signed char & x, const FormatSpec & f);
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mpt::ustring FormatValU(const unsigned char & x, const FormatSpec & f);
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mpt::ustring FormatValU(const signed short & x, const FormatSpec & f);
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mpt::ustring FormatValU(const unsigned short & x, const FormatSpec & f);
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mpt::ustring FormatValU(const signed int & x, const FormatSpec & f);
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mpt::ustring FormatValU(const unsigned int & x, const FormatSpec & f);
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mpt::ustring FormatValU(const signed long & x, const FormatSpec & f);
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mpt::ustring FormatValU(const unsigned long & x, const FormatSpec & f);
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mpt::ustring FormatValU(const signed long long & x, const FormatSpec & f);
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mpt::ustring FormatValU(const unsigned long long & x, const FormatSpec & f);
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mpt::ustring FormatValU(const float & x, const FormatSpec & f);
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mpt::ustring FormatValU(const double & x, const FormatSpec & f);
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mpt::ustring FormatValU(const long double & x, const FormatSpec & f);
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#if MPT_WSTRING_FORMAT
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std::wstring FormatValW(const char & x, const FormatSpec & f) = delete; // deprecated to catch potential API mis-use, use std::string(1, x) instead
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#if !defined(MPT_COMPILER_QUIRK_NO_WCHAR)
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std::wstring FormatValW(const wchar_t & x, const FormatSpec & f) = delete; // deprecated to catch potential API mis-use, use std::wstring(1, x) instead
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#endif // !MPT_COMPILER_QUIRK_NO_WCHAR
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std::wstring FormatValW(const bool & x, const FormatSpec & f);
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std::wstring FormatValW(const signed char & x, const FormatSpec & f);
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std::wstring FormatValW(const unsigned char & x, const FormatSpec & f);
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std::wstring FormatValW(const signed short & x, const FormatSpec & f);
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std::wstring FormatValW(const unsigned short & x, const FormatSpec & f);
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std::wstring FormatValW(const signed int & x, const FormatSpec & f);
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std::wstring FormatValW(const unsigned int & x, const FormatSpec & f);
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std::wstring FormatValW(const signed long & x, const FormatSpec & f);
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std::wstring FormatValW(const unsigned long & x, const FormatSpec & f);
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std::wstring FormatValW(const signed long long & x, const FormatSpec & f);
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std::wstring FormatValW(const unsigned long long & x, const FormatSpec & f);
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std::wstring FormatValW(const float & x, const FormatSpec & f);
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std::wstring FormatValW(const double & x, const FormatSpec & f);
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std::wstring FormatValW(const long double & x, const FormatSpec & f);
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#endif
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template <typename Tstring> struct FormatValTFunctor {};
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template <> struct FormatValTFunctor<std::string> { template <typename T> inline std::string operator() (const T & x, const FormatSpec & f) { return FormatVal(x, f); } };
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template <> struct FormatValTFunctor<mpt::ustring> { template <typename T> inline mpt::ustring operator() (const T & x, const FormatSpec & f) { return FormatValU(x, f); } };
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#if MPT_USTRING_MODE_UTF8 && MPT_WSTRING_FORMAT
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template <> struct FormatValTFunctor<std::wstring> { template <typename T> inline std::wstring operator() (const T & x, const FormatSpec & f) { return FormatValW(x, f); } };
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#endif
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#if defined(MPT_ENABLE_CHARSET_LOCALE)
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template <> struct FormatValTFunctor<mpt::lstring> { template <typename T> inline mpt::lstring operator() (const T & x, const FormatSpec & f) { return mpt::ToLocale(mpt::Charset::Locale, FormatVal(x, f)); } };
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#endif // MPT_ENABLE_CHARSET_LOCALE
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#if defined(MPT_WITH_MFC )
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#ifdef UNICODE
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template <> struct FormatValTFunctor<CString> { template <typename T> inline CString operator() (const T & x, const FormatSpec & f) { return mpt::ToCString(FormatValW(x, f)); } };
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#else // !UNICODE
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template <> struct FormatValTFunctor<CString> { template <typename T> inline CString operator() (const T & x, const FormatSpec & f) { return mpt::ToCString(mpt::Charset::Locale, FormatVal(x, f)); } };
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#endif // UNICODE
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#endif // MPT_WITH_MFC
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class FormatSpec
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{
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private:
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FormatFlags flags;
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std::size_t width;
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int precision;
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unsigned int group;
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char group_sep;
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public:
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MPT_CONSTEXPR11_FUN FormatSpec() noexcept : flags(0), width(0), precision(-1), group(0), group_sep(',') {}
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MPT_CONSTEXPR11_FUN FormatFlags GetFlags() const noexcept { return flags; }
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MPT_CONSTEXPR11_FUN std::size_t GetWidth() const noexcept { return width; }
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MPT_CONSTEXPR11_FUN int GetPrecision() const noexcept { return precision; }
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MPT_CONSTEXPR11_FUN unsigned int GetGroup() const noexcept { return group; }
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MPT_CONSTEXPR11_FUN char GetGroupSep() const noexcept { return group_sep; }
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MPT_CONSTEXPR14_FUN FormatSpec & SetFlags(FormatFlags f) noexcept { flags = f; return *this; }
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MPT_CONSTEXPR14_FUN FormatSpec & SetWidth(std::size_t w) noexcept { width = w; return *this; }
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MPT_CONSTEXPR14_FUN FormatSpec & SetPrecision(int p) noexcept { precision = p; return *this; }
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MPT_CONSTEXPR14_FUN FormatSpec & SetGroup(unsigned int g) noexcept { group = g; return *this; }
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MPT_CONSTEXPR14_FUN FormatSpec & SetGroupSep(char s) noexcept { group_sep = s; return *this; }
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public:
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MPT_CONSTEXPR14_FUN FormatSpec & BaseDec() noexcept { flags &= ~(fmt_base::BaseDec|fmt_base::BaseHex); flags |= fmt_base::BaseDec; return *this; }
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MPT_CONSTEXPR14_FUN FormatSpec & BaseHex() noexcept { flags &= ~(fmt_base::BaseDec|fmt_base::BaseHex); flags |= fmt_base::BaseHex; return *this; }
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MPT_CONSTEXPR14_FUN FormatSpec & CaseLow() noexcept { flags &= ~(fmt_base::CaseLow|fmt_base::CaseUpp); flags |= fmt_base::CaseLow; return *this; }
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MPT_CONSTEXPR14_FUN FormatSpec & CaseUpp() noexcept { flags &= ~(fmt_base::CaseLow|fmt_base::CaseUpp); flags |= fmt_base::CaseUpp; return *this; }
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MPT_CONSTEXPR14_FUN FormatSpec & FillOff() noexcept { flags &= ~(fmt_base::FillOff|fmt_base::FillNul); flags |= fmt_base::FillOff; return *this; }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & FillNul() noexcept { flags &= ~(fmt_base::FillOff|fmt_base::FillNul); flags |= fmt_base::FillNul; return *this; }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & NotaNrm() noexcept { flags &= ~(fmt_base::NotaNrm|fmt_base::NotaFix|fmt_base::NotaSci); flags |= fmt_base::NotaNrm; return *this; }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & NotaFix() noexcept { flags &= ~(fmt_base::NotaNrm|fmt_base::NotaFix|fmt_base::NotaSci); flags |= fmt_base::NotaFix; return *this; }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & NotaSci() noexcept { flags &= ~(fmt_base::NotaNrm|fmt_base::NotaFix|fmt_base::NotaSci); flags |= fmt_base::NotaSci; return *this; }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & Width(std::size_t w) noexcept { width = w; return *this; }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & Prec(int p) noexcept { precision = p; return *this; }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & Group(unsigned int g) noexcept { group = g; return *this; }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & GroupSep(char s) noexcept { group_sep = s; return *this; }
|
|
public:
|
|
MPT_CONSTEXPR14_FUN FormatSpec & Dec() noexcept { return BaseDec(); }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & Hex() noexcept { return BaseHex(); }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & Low() noexcept { return CaseLow(); }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & Upp() noexcept { return CaseUpp(); }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & Off() noexcept { return FillOff(); }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & Nul() noexcept { return FillNul(); }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & Nrm() noexcept { return NotaNrm(); }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & Fix() noexcept { return NotaFix(); }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & Sci() noexcept { return NotaSci(); }
|
|
public:
|
|
MPT_CONSTEXPR14_FUN FormatSpec & Decimal() noexcept { return BaseDec(); }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & Hexadecimal() noexcept { return BaseHex(); }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & Lower() noexcept { return CaseLow(); }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & Upper() noexcept { return CaseUpp(); }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & FillNone() noexcept { return FillOff(); }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & FillZero() noexcept { return FillNul(); }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & FloatNormal() noexcept { return NotaNrm(); }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & FloatFixed() noexcept { return NotaFix(); }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & FloatScientific() noexcept { return NotaSci(); }
|
|
MPT_CONSTEXPR14_FUN FormatSpec & Precision(int p) noexcept { return Prec(p); }
|
|
};
|
|
|
|
template <typename Tdst, typename Tsrc>
|
|
struct pointer_cast_helper
|
|
{
|
|
Tdst operator()(const Tsrc & src) const { return src; }
|
|
};
|
|
template <typename Tdst, typename Tptr>
|
|
struct pointer_cast_helper<Tdst, const Tptr*>
|
|
{
|
|
Tdst operator()(const Tptr * const & src) const { return reinterpret_cast<const Tdst>(src); }
|
|
};
|
|
template <typename Tdst, typename Tptr>
|
|
struct pointer_cast_helper<Tdst, Tptr*>
|
|
{
|
|
Tdst operator()(const Tptr * const & src) const { return reinterpret_cast<const Tdst>(src); }
|
|
};
|
|
|
|
|
|
template <typename Tdst, typename Tsrc>
|
|
Tdst pointer_cast(const Tsrc & src)
|
|
{
|
|
return pointer_cast_helper<Tdst, Tsrc>()(src);
|
|
}
|
|
|
|
template <typename Tstring>
|
|
struct fmtT : fmt_base
|
|
{
|
|
|
|
template<typename T>
|
|
static inline Tstring val(const T& x)
|
|
{
|
|
return ToStringTFunctor<Tstring>()(x);
|
|
}
|
|
|
|
template<typename T>
|
|
static inline Tstring fmt(const T& x, const FormatSpec& f)
|
|
{
|
|
return FormatValTFunctor<Tstring>()(x, f);
|
|
}
|
|
|
|
template<typename T>
|
|
static inline Tstring dec(const T& x)
|
|
{
|
|
static_assert(std::numeric_limits<T>::is_integer);
|
|
return FormatValTFunctor<Tstring>()(x, FormatSpec().BaseDec().FillOff());
|
|
}
|
|
template<int width, typename T>
|
|
static inline Tstring dec0(const T& x)
|
|
{
|
|
static_assert(std::numeric_limits<T>::is_integer);
|
|
return FormatValTFunctor<Tstring>()(x, FormatSpec().BaseDec().FillNul().Width(width));
|
|
}
|
|
|
|
template<typename T>
|
|
static inline Tstring dec(unsigned int g, char s, const T& x)
|
|
{
|
|
static_assert(std::numeric_limits<T>::is_integer);
|
|
return FormatValTFunctor<Tstring>()(x, FormatSpec().BaseDec().FillOff().Group(g).GroupSep(s));
|
|
}
|
|
template<int width, typename T>
|
|
static inline Tstring dec0(unsigned int g, char s, const T& x)
|
|
{
|
|
static_assert(std::numeric_limits<T>::is_integer);
|
|
return FormatValTFunctor<Tstring>()(x, FormatSpec().BaseDec().FillNul().Width(width).Group(g).GroupSep(s));
|
|
}
|
|
|
|
template<typename T>
|
|
static inline Tstring hex(const T& x)
|
|
{
|
|
static_assert(std::numeric_limits<T>::is_integer);
|
|
return FormatValTFunctor<Tstring>()(x, FormatSpec().BaseHex().CaseLow().FillOff());
|
|
}
|
|
template<typename T>
|
|
static inline Tstring HEX(const T& x)
|
|
{
|
|
static_assert(std::numeric_limits<T>::is_integer);
|
|
return FormatValTFunctor<Tstring>()(x, FormatSpec().BaseHex().CaseUpp().FillOff());
|
|
}
|
|
template<int width, typename T>
|
|
static inline Tstring hex0(const T& x)
|
|
{
|
|
static_assert(std::numeric_limits<T>::is_integer);
|
|
return FormatValTFunctor<Tstring>()(x, FormatSpec().BaseHex().CaseLow().FillNul().Width(width));
|
|
}
|
|
template<int width, typename T>
|
|
static inline Tstring HEX0(const T& x)
|
|
{
|
|
static_assert(std::numeric_limits<T>::is_integer);
|
|
return FormatValTFunctor<Tstring>()(x, FormatSpec().BaseHex().CaseUpp().FillNul().Width(width));
|
|
}
|
|
|
|
template<typename T>
|
|
static inline Tstring hex(unsigned int g, char s, const T& x)
|
|
{
|
|
static_assert(std::numeric_limits<T>::is_integer);
|
|
return FormatValTFunctor<Tstring>()(x, FormatSpec().BaseHex().CaseLow().FillOff().Group(g).GroupSep(s));
|
|
}
|
|
template<typename T>
|
|
static inline Tstring HEX(unsigned int g, char s, const T& x)
|
|
{
|
|
static_assert(std::numeric_limits<T>::is_integer);
|
|
return FormatValTFunctor<Tstring>()(x, FormatSpec().BaseHex().CaseUpp().FillOff().Group(g).GroupSep(s));
|
|
}
|
|
template<int width, typename T>
|
|
static inline Tstring hex0(unsigned int g, char s, const T& x)
|
|
{
|
|
static_assert(std::numeric_limits<T>::is_integer);
|
|
return FormatValTFunctor<Tstring>()(x, FormatSpec().BaseHex().CaseLow().FillNul().Width(width).Group(g).GroupSep(s));
|
|
}
|
|
template<int width, typename T>
|
|
static inline Tstring HEX0(unsigned int g, char s, const T& x)
|
|
{
|
|
static_assert(std::numeric_limits<T>::is_integer);
|
|
return FormatValTFunctor<Tstring>()(x, FormatSpec().BaseHex().CaseUpp().FillNul().Width(width).Group(g).GroupSep(s));
|
|
}
|
|
|
|
template<typename T>
|
|
static inline Tstring flt(const T& x, int precision = -1)
|
|
{
|
|
static_assert(std::is_floating_point<T>::value);
|
|
return FormatValTFunctor<Tstring>()(x, FormatSpec().NotaNrm().FillOff().Precision(precision));
|
|
}
|
|
template<typename T>
|
|
static inline Tstring fix(const T& x, int precision = -1)
|
|
{
|
|
static_assert(std::is_floating_point<T>::value);
|
|
return FormatValTFunctor<Tstring>()(x, FormatSpec().NotaFix().FillOff().Precision(precision));
|
|
}
|
|
template<typename T>
|
|
static inline Tstring sci(const T& x, int precision = -1)
|
|
{
|
|
static_assert(std::is_floating_point<T>::value);
|
|
return FormatValTFunctor<Tstring>()(x, FormatSpec().NotaSci().FillOff().Precision(precision));
|
|
}
|
|
|
|
template<typename T>
|
|
static inline Tstring ptr(const T& x)
|
|
{
|
|
static_assert(std::is_pointer<T>::value || std::is_same<T, std::uintptr_t>::value || std::is_same<T, std::intptr_t>::value, "");
|
|
return hex0<mpt::pointer_size * 2>(pointer_cast<const std::uintptr_t>(x));
|
|
}
|
|
template<typename T>
|
|
static inline Tstring PTR(const T& x)
|
|
{
|
|
static_assert(std::is_pointer<T>::value || std::is_same<T, std::uintptr_t>::value || std::is_same<T, std::intptr_t>::value, "");
|
|
return HEX0<mpt::pointer_size * 2>(pointer_cast<const std::uintptr_t>(x));
|
|
}
|
|
|
|
static inline Tstring pad_left(std::size_t width_, const Tstring &str)
|
|
{
|
|
typedef mpt::string_traits<Tstring> traits;
|
|
typename traits::size_type width = static_cast<typename traits::size_type>(width_);
|
|
return traits::pad(str, width, 0);
|
|
}
|
|
static inline Tstring pad_right(std::size_t width_, const Tstring &str)
|
|
{
|
|
typedef mpt::string_traits<Tstring> traits;
|
|
typename traits::size_type width = static_cast<typename traits::size_type>(width_);
|
|
return traits::pad(str, 0, width);
|
|
}
|
|
static inline Tstring left(std::size_t width_, const Tstring &str)
|
|
{
|
|
typedef mpt::string_traits<Tstring> traits;
|
|
typename traits::size_type width = static_cast<typename traits::size_type>(width_);
|
|
return (traits::length(str) < width) ? traits::pad(str, 0, width - traits::length(str)) : str;
|
|
}
|
|
static inline Tstring right(std::size_t width_, const Tstring &str)
|
|
{
|
|
typedef mpt::string_traits<Tstring> traits;
|
|
typename traits::size_type width = static_cast<typename traits::size_type>(width_);
|
|
return (traits::length(str) < width) ? traits::pad(str, width - traits::length(str), 0) : str;
|
|
}
|
|
static inline Tstring center(std::size_t width_, const Tstring &str)
|
|
{
|
|
typedef mpt::string_traits<Tstring> traits;
|
|
typename traits::size_type width = static_cast<typename traits::size_type>(width_);
|
|
return (traits::length(str) < width) ? traits::pad(str, (width - traits::length(str)) / 2, (width - traits::length(str) + 1) / 2) : str;
|
|
}
|
|
|
|
}; // struct fmtT
|
|
|
|
|
|
typedef fmtT<std::string> fmt;
|
|
#if MPT_WSTRING_FORMAT
|
|
typedef fmtT<std::wstring> wfmt;
|
|
#endif
|
|
#if MPT_USTRING_MODE_WIDE
|
|
typedef fmtT<std::wstring> ufmt;
|
|
#else
|
|
typedef fmtT<mpt::ustring> ufmt;
|
|
#endif
|
|
#if defined(MPT_ENABLE_CHARSET_LOCALE)
|
|
typedef fmtT<mpt::lstring> lfmt;
|
|
#endif // MPT_ENABLE_CHARSET_LOCALE
|
|
#if MPT_OS_WINDOWS
|
|
typedef fmtT<mpt::tstring> tfmt;
|
|
#endif
|
|
#if defined(MPT_WITH_MFC)
|
|
typedef fmtT<CString> cfmt;
|
|
#endif // MPT_WITH_MFC
|
|
|
|
} // namespace mpt
|
|
|
|
namespace mpt {
|
|
|
|
namespace String {
|
|
|
|
namespace detail
|
|
{
|
|
|
|
template <typename T> struct to_string_type { };
|
|
template <> struct to_string_type<std::string > { typedef std::string type; };
|
|
template <> struct to_string_type<char > { typedef std::string type; };
|
|
template <> struct to_string_type<char * > { typedef std::string type; };
|
|
template <> struct to_string_type<const char > { typedef std::string type; };
|
|
template <> struct to_string_type<const char * > { typedef std::string type; };
|
|
#if !defined(MPT_COMPILER_QUIRK_NO_WCHAR)
|
|
template <> struct to_string_type<std::wstring > { typedef std::wstring type; };
|
|
template <> struct to_string_type<wchar_t > { typedef std::wstring type; };
|
|
template <> struct to_string_type<wchar_t * > { typedef std::wstring type; };
|
|
template <> struct to_string_type<const wchar_t > { typedef std::wstring type; };
|
|
template <> struct to_string_type<const wchar_t *> { typedef std::wstring type; };
|
|
#endif // !MPT_COMPILER_QUIRK_NO_WCHAR
|
|
#if MPT_USTRING_MODE_UTF8
|
|
template <> struct to_string_type<mpt::ustring > { typedef mpt::ustring type; };
|
|
#endif
|
|
#if defined(MPT_ENABLE_CHARSET_LOCALE)
|
|
template <> struct to_string_type<mpt::lstring > { typedef mpt::lstring type; };
|
|
#endif // MPT_ENABLE_CHARSET_LOCALE
|
|
#if defined(MPT_WITH_MFC)
|
|
template <> struct to_string_type<CString > { typedef CString type; };
|
|
#endif // MPT_WITH_MFC
|
|
template <typename T, std::size_t N> struct to_string_type<T [N]> { typedef typename to_string_type<T>::type type; };
|
|
|
|
} // namespace detail
|
|
|
|
} // namespace String
|
|
|
|
template<typename Tformat>
|
|
class message_formatter
|
|
{
|
|
|
|
public:
|
|
|
|
typedef typename mpt::String::detail::to_string_type<Tformat>::type Tstring;
|
|
|
|
private:
|
|
|
|
Tstring format;
|
|
|
|
private:
|
|
|
|
MPT_NOINLINE Tstring do_format(mpt::span<const Tstring> vals) const
|
|
{
|
|
typedef typename mpt::string_traits<Tstring> traits;
|
|
Tstring result;
|
|
const typename traits::size_type len = traits::length(format);
|
|
traits::reserve(result, len);
|
|
for(typename traits::size_type pos = 0; pos != len; ++pos)
|
|
{
|
|
typename traits::char_type c = format[pos];
|
|
if(pos + 1 != len && c == typename traits::char_type('%'))
|
|
{
|
|
pos++;
|
|
c = format[pos];
|
|
if(typename traits::char_type('1') <= c && c <= typename traits::char_type('9'))
|
|
{
|
|
const std::size_t n = c - typename traits::char_type('0') - 1;
|
|
if(n < std::size(vals))
|
|
{
|
|
traits::append(result, vals[n]);
|
|
}
|
|
continue;
|
|
} else if(c != typename traits::char_type('%'))
|
|
{
|
|
traits::append(result, 1, typename traits::char_type('%'));
|
|
}
|
|
}
|
|
traits::append(result, 1, c);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
public:
|
|
|
|
message_formatter(Tstring format_)
|
|
: format(std::move(format_))
|
|
{
|
|
}
|
|
|
|
public:
|
|
|
|
template<typename ...Ts>
|
|
Tstring operator() (const Ts&... xs) const
|
|
{
|
|
const std::array<Tstring, sizeof...(xs)> vals{{ToStringTFunctor<Tstring>()(xs)...}};
|
|
return do_format(mpt::as_span(vals));
|
|
}
|
|
|
|
}; // struct message_formatter<Tformat>
|
|
|
|
template<typename Tformat>
|
|
message_formatter<typename mpt::String::detail::to_string_type<Tformat>::type> format(Tformat format)
|
|
{
|
|
typedef typename mpt::String::detail::to_string_type<Tformat>::type Tstring;
|
|
return message_formatter<Tstring>(Tstring(std::move(format)));
|
|
}
|
|
|
|
#if MPT_WSTRING_FORMAT
|
|
static inline message_formatter<std::wstring> wformat(std::wstring format)
|
|
{
|
|
return message_formatter<std::wstring>(std::move(format));
|
|
}
|
|
#endif
|
|
|
|
static inline message_formatter<mpt::ustring> uformat(mpt::ustring format)
|
|
{
|
|
return message_formatter<mpt::ustring>(std::move(format));
|
|
}
|
|
|
|
#if defined(MPT_ENABLE_CHARSET_LOCALE)
|
|
static inline message_formatter<mpt::lstring> lformat(mpt::lstring format)
|
|
{
|
|
return message_formatter<mpt::lstring>(std::move(format));
|
|
}
|
|
#endif // MPT_ENABLE_CHARSET_LOCALE
|
|
|
|
#if MPT_OS_WINDOWS
|
|
static inline message_formatter<mpt::tstring> tformat(mpt::tstring format)
|
|
{
|
|
return message_formatter<mpt::tstring>(std::move(format));
|
|
}
|
|
#endif
|
|
|
|
#if defined(MPT_WITH_MFC)
|
|
static inline message_formatter<CString> cformat(CString format)
|
|
{
|
|
return message_formatter<CString>(std::move(format));
|
|
}
|
|
#endif // MPT_WITH_MFC
|
|
|
|
} // namespace mpt
|
|
|
|
|
|
|
|
namespace mpt { namespace String {
|
|
|
|
// Combine a vector of values into a string, separated with the given separator.
|
|
// No escaping is performed.
|
|
template<typename T>
|
|
mpt::ustring Combine(const std::vector<T> &vals, const mpt::ustring &sep=U_(","))
|
|
{
|
|
mpt::ustring str;
|
|
for(std::size_t i = 0; i < vals.size(); ++i)
|
|
{
|
|
if(i > 0)
|
|
{
|
|
str += sep;
|
|
}
|
|
str += mpt::ufmt::val(vals[i]);
|
|
}
|
|
return str;
|
|
}
|
|
template<typename T>
|
|
std::string Combine(const std::vector<T> &vals, const std::string &sep=std::string(","))
|
|
{
|
|
std::string str;
|
|
for(std::size_t i = 0; i < vals.size(); ++i)
|
|
{
|
|
if(i > 0)
|
|
{
|
|
str += sep;
|
|
}
|
|
str += mpt::fmt::val(vals[i]);
|
|
}
|
|
return str;
|
|
}
|
|
|
|
} } // namespace mpt::String
|
|
|
|
|
|
|
|
OPENMPT_NAMESPACE_END
|