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827 lines
27 KiB
C++
827 lines
27 KiB
C++
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/*
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* mptString.cpp
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* -------------
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* Purpose: Small string-related utilities, number and message formatting.
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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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#include "stdafx.h"
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#include "mptString.h"
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#include "mpt/string/types.hpp"
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#include "mpt/string/utility.hpp"
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#include "mpt/string_transcode/transcode.hpp"
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#include <locale>
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#include <string>
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#include <vector>
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#include <cstdlib>
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#if defined(MODPLUG_TRACKER)
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#include <cwctype>
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#endif // MODPLUG_TRACKER
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#if defined(MODPLUG_TRACKER)
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#include <wctype.h>
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#endif // MODPLUG_TRACKER
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#if MPT_OS_WINDOWS
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#include <windows.h>
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#endif // MPT_OS_WINDOWS
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OPENMPT_NAMESPACE_BEGIN
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/*
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Quick guide to the OpenMPT string type jungle
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=============================================
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This quick guide is only meant as a hint. There may be valid reasons to not
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honor the recommendations found here. Staying consistent with surrounding and/or
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related code sections may also be important.
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List of string types
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--------------------
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* std::string (OpenMPT, libopenmpt)
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C++ string of unspecifed 8bit encoding. Try to always document the
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encoding if not clear from context. Do not use unless there is an obvious
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reason to do so.
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* std::wstring (OpenMPT)
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UTF16 (on windows) or UTF32 (otherwise). Do not use unless there is an
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obvious reason to do so.
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* mpt::lstring (OpenMPT)
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OpenMPT locale string type. The encoding is always CP_ACP. Do not use unless
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there is an obvious reason to do so.
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* char* (OpenMPT, libopenmpt)
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C string of unspecified encoding. Use only for static literals or in
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performance critical inner loops where full control and avoidance of memory
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allocations is required.
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* wchar_t* (OpenMPT)
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C wide string. Use only if Unicode is required for static literals or in
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performance critical inner loops where full control and avoidance of memory
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allocation is required.
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* mpt::winstring (OpenMPT)
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OpenMPT type-safe string to interface with native WinAPI, either encoded in
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locale/CP_ACP (if !UNICODE) or UTF16 (if UNICODE).
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* CString (OpenMPT)
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MFC string type, either encoded in locale/CP_ACP (if !UNICODE) or UTF16 (if
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UNICODE). Specify literals with _T(""). Use in MFC GUI code.
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* CStringA (OpenMPT)
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MFC ANSI string type. The encoding is always CP_ACP. Do not use.
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* CStringW (OpenMPT)
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MFC Unicode string type. Do not use.
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* mpt::PathString (OpenMPT, libopenmpt)
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String type representing paths and filenames. Always use for these in order
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to avoid potentially lossy conversions. Use P_("") macro for
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literals.
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* mpt::ustring (OpenMPT, libopenmpt)
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The default unicode string type. Can be encoded in UTF8 or UTF16 or UTF32,
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depending on MPT_USTRING_MODE_* and sizeof(wchar_t). Literals can written as
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U_(""). Use as your default string type if no other string type is
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a measurably better fit.
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* MPT_UTF8 (OpenMPT, libopenmpt)
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Macro that generates a mpt::ustring from string literals containing
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non-ascii characters. In order to keep the source code in ascii encoding,
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always express non-ascii characters using explicit \x23 escaping. Note that
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depending on the underlying type of mpt::ustring, MPT_UTF8 *requires* a
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runtime conversion. Only use for string literals containing non-ascii
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characters (use MPT_USTRING otherwise).
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* MPT_ULITERAL / MPT_UCHAR / mpt::uchar (OpenMPT, libopenmpt)
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Macros which generate string literals, char literals and the char literal
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type respectively. These are especially useful in constexpr contexts or
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global data where MPT_USTRING is either unusable or requires a global
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contructor to run. Do NOT use as a performance optimization in place of
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MPT_USTRING however, because MPT_USTRING can be converted to C++11/14 user
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defined literals eventually, while MPT_ULITERAL cannot because of constexpr
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requirements.
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* mpt::RawPathString (OpenMPT, libopenmpt)
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Internal representation of mpt::PathString. Only use for parsing path
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fragments.
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* mpt::u8string (OpenMPT, libopenmpt)
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Internal representation of mpt::ustring. Do not use directly. Ever.
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* std::basic_string<char> (OpenMPT)
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Same as std::string. Do not use std::basic_string in the templated form.
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* std::basic_string<wchar_t> (OpenMPT)
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Same as std::wstring. Do not use std::basic_string in the templated form.
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The following string types are available in order to avoid the need to overload
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functions on a huge variety of string types. Use only ever as function argument
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types.
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Note that the locale charset is not available on all libopenmpt builds (in which
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case the option is ignored or a sensible fallback is used; these types are
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always available).
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All these types publicly inherit from mpt::ustring and do not contain any
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additional state. This means that they work the same way as mpt::ustring does
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and do support type-slicing for both, read and write accesses.
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These types only add conversion constructors for all string types that have a
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defined encoding and for all 8bit string types using the specified encoding
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heuristic.
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* AnyUnicodeString (OpenMPT, libopenmpt)
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Is constructible from any Unicode string.
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* AnyString (OpenMPT, libopenmpt)
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Tries to do the smartest auto-magic we can do.
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* AnyStringLocale (OpenMPT, libopenmpt)
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char-based strings are assumed to be in locale encoding.
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* AnyStringUTF8orLocale (OpenMPT, libopenmpt)
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char-based strings are tried in UTF8 first, if this fails, locale is used.
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* AnyStringUTF8 (OpenMPT, libopenmpt)
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char-based strings are assumed to be in UTF8.
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Encoding of 8bit strings
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------------------------
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8bit strings have an unspecified encoding. When the string is contained within a
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CSoundFile object, the encoding is most likely CSoundFile::GetCharsetInternal(),
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otherwise, try to gather the most probable encoding from surrounding or related
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code sections.
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Decision tree to help deciding which string type to use
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-------------------------------------------------------
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if in libopenmpt
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if in libopenmpt c++ interface
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T = std::string, the encoding is utf8
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elif in libopenmpt c interface
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T = char*, the encoding is utf8
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elif performance critical inner loop
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T = char*, document the encoding if not clear from context
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elif string literal containing non-ascii characters
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T = MPT_UTF8
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elif path or file
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if parsing path fragments
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T = mpt::RawPathString
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template your function on the concrete underlying string type
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(std::string and std::wstring) or use preprocessor MPT_OS_WINDOWS
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else
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T = mpt::PathString
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fi
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else
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T = mpt::ustring
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fi
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else
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if performance critical inner loop
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if needs unicode support
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T = mpt::uchar* / MPT_ULITERAL
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else
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T = char*, document the encoding if not clear from context
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fi
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elif string literal containing non-ascii characters
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T = MPT_UTF8
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elif path or file
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if parsing path fragments
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T = mpt::RawPathString
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template your function on the concrete underlying string type
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(std::string and std::wstring) or use preprocessor MPT_OS_WINDOWS
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else
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T = mpt::PathString
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fi
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elif winapi interfacing code
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T = mpt::winstring
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elif mfc/gui code
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T = CString
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else
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if constexpr context or global data
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T = mpt::uchar* / MPT_ULITERAL
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else
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T = mpt::ustring
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fi
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fi
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fi
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This boils down to: Prefer mpt::PathString and mpt::ustring, and only use any
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other string type if there is an obvious reason to do so.
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Character set conversions
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-------------------------
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Character set conversions in OpenMPT are always fuzzy.
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Behaviour in case of an invalid source encoding and behaviour in case of an
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unrepresentable destination encoding can be any of the following:
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* The character is replaced by some replacement character ('?' or L'\ufffd' in
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most cases).
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* The character is replaced by a similar character (either semantically
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similiar or visually similar).
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* The character is transcribed with some ASCII text.
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* The character is discarded.
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* Conversion stops at this very character.
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Additionally. conversion may stop or continue on \0 characters in the middle of
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the string.
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Behaviour can vary from one conversion tuple to any other.
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If you need to ensure lossless conversion, do a roundtrip conversion and check
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for equality.
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Unicode handling
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----------------
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OpenMPT is generally not aware of and does not handle different Unicode
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normalization forms.
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You should be aware of the following possibilities:
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* Conversion between UTF8, UTF16, UTF32 may or may not change between NFC and
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NFD.
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* Conversion from any non-Unicode 8bit encoding can result in both, NFC or NFD
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forms.
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* Conversion to any non-Unicode 8bit encoding may or may not involve
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conversion to NFC, NFD, NFKC or NFKD during the conversion. This in
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particular means that conversion of decomposed german umlauts to ISO8859-1
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may fail.
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* Changing the normalization form of path strings may render the file
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inaccessible.
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Unicode BOM may or may not be preserved and/or discarded during conversion.
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Invalid Unicode code points may be treated as invalid or as valid characters
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when converting between different Unicode encodings.
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Interfacing with WinAPI
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-----------------------
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When in MFC code, use CString.
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When in non MFC code, either use std::wstring when directly interfacing with
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APIs only available in WCHAR variants, or use mpt::winstring and
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mpt::WinStringBuf helpers otherwise.
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Specify TCHAR string literals with _T("foo") in mptrack/, and with TEXT("foo")
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in common/ or sounddev/. _T() requires <tchar.h> which is specific to the MSVC
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runtime and not portable across compilers. TEXT() is from <windows.h>. We use
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_T() in mptrack/ only because it is shorter.
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*/
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namespace mpt { namespace String {
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#define C(x) (mpt::char_value((x)))
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// AMS1 actually only supports ASCII plus the modified control characters and no high chars at all.
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// Just default to CP437 for those to keep things simple.
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static constexpr char32_t CharsetTableCP437AMS[256] = {
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C(' '),0x0001,0x0002,0x0003,0x00e4,0x0005,0x00e5,0x0007,0x0008,0x0009,0x000a,0x000b,0x000c,0x000d,0x00c4,0x00c5, // differs from CP437
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0x0010,0x0011,0x0012,0x0013,0x00f6,0x0015,0x0016,0x0017,0x0018,0x00d6,0x001a,0x001b,0x001c,0x001d,0x001e,0x001f, // differs from CP437
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0x0020,0x0021,0x0022,0x0023,0x0024,0x0025,0x0026,0x0027,0x0028,0x0029,0x002a,0x002b,0x002c,0x002d,0x002e,0x002f,
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0x0030,0x0031,0x0032,0x0033,0x0034,0x0035,0x0036,0x0037,0x0038,0x0039,0x003a,0x003b,0x003c,0x003d,0x003e,0x003f,
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0x0040,0x0041,0x0042,0x0043,0x0044,0x0045,0x0046,0x0047,0x0048,0x0049,0x004a,0x004b,0x004c,0x004d,0x004e,0x004f,
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0x0050,0x0051,0x0052,0x0053,0x0054,0x0055,0x0056,0x0057,0x0058,0x0059,0x005a,0x005b,0x005c,0x005d,0x005e,0x005f,
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0x0060,0x0061,0x0062,0x0063,0x0064,0x0065,0x0066,0x0067,0x0068,0x0069,0x006a,0x006b,0x006c,0x006d,0x006e,0x006f,
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0x0070,0x0071,0x0072,0x0073,0x0074,0x0075,0x0076,0x0077,0x0078,0x0079,0x007a,0x007b,0x007c,0x007d,0x007e,0x2302,
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0x00c7,0x00fc,0x00e9,0x00e2,0x00e4,0x00e0,0x00e5,0x00e7,0x00ea,0x00eb,0x00e8,0x00ef,0x00ee,0x00ec,0x00c4,0x00c5,
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0x00c9,0x00e6,0x00c6,0x00f4,0x00f6,0x00f2,0x00fb,0x00f9,0x00ff,0x00d6,0x00dc,0x00a2,0x00a3,0x00a5,0x20a7,0x0192,
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0x00e1,0x00ed,0x00f3,0x00fa,0x00f1,0x00d1,0x00aa,0x00ba,0x00bf,0x2310,0x00ac,0x00bd,0x00bc,0x00a1,0x00ab,0x00bb,
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0x2591,0x2592,0x2593,0x2502,0x2524,0x2561,0x2562,0x2556,0x2555,0x2563,0x2551,0x2557,0x255d,0x255c,0x255b,0x2510,
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0x2514,0x2534,0x252c,0x251c,0x2500,0x253c,0x255e,0x255f,0x255a,0x2554,0x2569,0x2566,0x2560,0x2550,0x256c,0x2567,
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0x2568,0x2564,0x2565,0x2559,0x2558,0x2552,0x2553,0x256b,0x256a,0x2518,0x250c,0x2588,0x2584,0x258c,0x2590,0x2580,
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0x03b1,0x00df,0x0393,0x03c0,0x03a3,0x03c3,0x00b5,0x03c4,0x03a6,0x0398,0x03a9,0x03b4,0x221e,0x03c6,0x03b5,0x2229,
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0x2261,0x00b1,0x2265,0x2264,0x2320,0x2321,0x00f7,0x2248,0x00b0,0x2219,0x00b7,0x221a,0x207f,0x00b2,0x25a0,0x00a0
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};
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// AMS2: Looking at Velvet Studio's bitmap font (TPIC32.PCX), these appear to be the only supported non-ASCII chars.
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static constexpr char32_t CharsetTableCP437AMS2[256] = {
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C(' '),0x00a9,0x221a,0x00b7,C('0'),C('1'),C('2'),C('3'),C('4'),C('5'),C('6'),C('7'),C('8'),C('9'),C('A'),C('B'), // differs from CP437
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C('C'),C('D'),C('E'),C('F'),C(' '),0x00a7,C(' '),C(' '),C(' '),C(' '),C(' '),C(' '),C(' '),C(' '),C(' '),C(' '), // differs from CP437
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0x0020,0x0021,0x0022,0x0023,0x0024,0x0025,0x0026,0x0027,0x0028,0x0029,0x002a,0x002b,0x002c,0x002d,0x002e,0x002f,
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0x0030,0x0031,0x0032,0x0033,0x0034,0x0035,0x0036,0x0037,0x0038,0x0039,0x003a,0x003b,0x003c,0x003d,0x003e,0x003f,
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0x0040,0x0041,0x0042,0x0043,0x0044,0x0045,0x0046,0x0047,0x0048,0x0049,0x004a,0x004b,0x004c,0x004d,0x004e,0x004f,
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0x0050,0x0051,0x0052,0x0053,0x0054,0x0055,0x0056,0x0057,0x0058,0x0059,0x005a,0x005b,0x005c,0x005d,0x005e,0x005f,
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0x0060,0x0061,0x0062,0x0063,0x0064,0x0065,0x0066,0x0067,0x0068,0x0069,0x006a,0x006b,0x006c,0x006d,0x006e,0x006f,
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0x0070,0x0071,0x0072,0x0073,0x0074,0x0075,0x0076,0x0077,0x0078,0x0079,0x007a,0x007b,0x007c,0x007d,0x007e,0x2302,
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0x00c7,0x00fc,0x00e9,0x00e2,0x00e4,0x00e0,0x00e5,0x00e7,0x00ea,0x00eb,0x00e8,0x00ef,0x00ee,0x00ec,0x00c4,0x00c5,
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0x00c9,0x00e6,0x00c6,0x00f4,0x00f6,0x00f2,0x00fb,0x00f9,0x00ff,0x00d6,0x00dc,0x00a2,0x00a3,0x00a5,0x20a7,0x0192,
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||
|
0x00e1,0x00ed,0x00f3,0x00fa,0x00f1,0x00d1,0x00aa,0x00ba,0x00bf,0x2310,0x00ac,0x00bd,0x00bc,0x00a1,0x00ab,0x00bb,
|
||
|
0x2591,0x2592,0x2593,0x2502,0x2524,0x2561,0x2562,0x2556,0x2555,0x2563,0x2551,0x2557,0x255d,0x255c,0x255b,0x2510,
|
||
|
0x2514,0x2534,0x252c,0x251c,0x2500,0x253c,0x255e,0x255f,0x255a,0x2554,0x2569,0x2566,0x2560,0x2550,0x256c,0x2567,
|
||
|
0x2568,0x2564,0x2565,0x2559,0x2558,0x2552,0x2553,0x256b,0x256a,0x2518,0x250c,0x2588,0x2584,0x258c,0x2590,0x2580,
|
||
|
0x03b1,0x00df,0x0393,0x03c0,0x03a3,0x03c3,0x00b5,0x03c4,0x03a6,0x0398,0x03a9,0x03b4,0x221e,0x03c6,0x03b5,0x2229,
|
||
|
0x2261,0x00b1,0x2265,0x2264,0x2320,0x2321,0x00f7,0x2248,0x00b0,0x2219,0x00b7,0x221a,0x207f,0x00b2,0x25a0,0x00a0
|
||
|
};
|
||
|
|
||
|
#undef C
|
||
|
|
||
|
|
||
|
// templated on 8bit strings because of type-safe variants
|
||
|
template<typename Tdststring>
|
||
|
static Tdststring EncodeImpl(Charset charset, const mpt::widestring &src)
|
||
|
{
|
||
|
static_assert(sizeof(typename Tdststring::value_type) == sizeof(char));
|
||
|
static_assert(mpt::is_character<typename Tdststring::value_type>::value);
|
||
|
switch(charset)
|
||
|
{
|
||
|
#if defined(MPT_ENABLE_CHARSET_LOCALE)
|
||
|
case Charset::Locale: return mpt::encode<Tdststring>(mpt::logical_encoding::locale, src); break;
|
||
|
#endif
|
||
|
case Charset::UTF8: return mpt::encode<Tdststring>(mpt::common_encoding::utf8, src); break;
|
||
|
case Charset::ASCII: return mpt::encode<Tdststring>(mpt::common_encoding::ascii, src); break;
|
||
|
case Charset::ISO8859_1: return mpt::encode<Tdststring>(mpt::common_encoding::iso8859_1, src); break;
|
||
|
case Charset::ISO8859_15: return mpt::encode<Tdststring>(mpt::common_encoding::iso8859_15, src); break;
|
||
|
case Charset::CP850: return mpt::encode<Tdststring>(mpt::common_encoding::cp850, src); break;
|
||
|
case Charset::CP437: return mpt::encode<Tdststring>(mpt::common_encoding::cp437, src); break;
|
||
|
case Charset::CP437AMS: return mpt::encode<Tdststring>(CharsetTableCP437AMS, src); break;
|
||
|
case Charset::CP437AMS2: return mpt::encode<Tdststring>(CharsetTableCP437AMS2, src); break;
|
||
|
case Charset::Windows1252: return mpt::encode<Tdststring>(mpt::common_encoding::windows1252, src); break;
|
||
|
case Charset::Amiga: return mpt::encode<Tdststring>(mpt::common_encoding::amiga, src); break;
|
||
|
case Charset::RISC_OS: return mpt::encode<Tdststring>(mpt::common_encoding::riscos, src); break;
|
||
|
case Charset::ISO8859_1_no_C1: return mpt::encode<Tdststring>(mpt::common_encoding::iso8859_1_no_c1, src); break;
|
||
|
case Charset::ISO8859_15_no_C1: return mpt::encode<Tdststring>(mpt::common_encoding::iso8859_15_no_c1, src); break;
|
||
|
case Charset::Amiga_no_C1: return mpt::encode<Tdststring>(mpt::common_encoding::amiga_no_c1, src); break;
|
||
|
}
|
||
|
return Tdststring();
|
||
|
}
|
||
|
|
||
|
|
||
|
// templated on 8bit strings because of type-safe variants
|
||
|
template<typename Tsrcstring>
|
||
|
static mpt::widestring DecodeImpl(Charset charset, const Tsrcstring &src)
|
||
|
{
|
||
|
static_assert(sizeof(typename Tsrcstring::value_type) == sizeof(char));
|
||
|
static_assert(mpt::is_character<typename Tsrcstring::value_type>::value);
|
||
|
switch(charset)
|
||
|
{
|
||
|
#if defined(MPT_ENABLE_CHARSET_LOCALE)
|
||
|
case Charset::Locale: return mpt::decode<Tsrcstring>(mpt::logical_encoding::locale, src); break;
|
||
|
#endif
|
||
|
case Charset::UTF8: return mpt::decode<Tsrcstring>(mpt::common_encoding::utf8, src); break;
|
||
|
case Charset::ASCII: return mpt::decode<Tsrcstring>(mpt::common_encoding::ascii, src); break;
|
||
|
case Charset::ISO8859_1: return mpt::decode<Tsrcstring>(mpt::common_encoding::iso8859_1, src); break;
|
||
|
case Charset::ISO8859_15: return mpt::decode<Tsrcstring>(mpt::common_encoding::iso8859_15, src); break;
|
||
|
case Charset::CP850: return mpt::decode<Tsrcstring>(mpt::common_encoding::cp850, src); break;
|
||
|
case Charset::CP437: return mpt::decode<Tsrcstring>(mpt::common_encoding::cp437, src); break;
|
||
|
case Charset::CP437AMS: return mpt::decode<Tsrcstring>(CharsetTableCP437AMS, src); break;
|
||
|
case Charset::CP437AMS2: return mpt::decode<Tsrcstring>(CharsetTableCP437AMS2, src); break;
|
||
|
case Charset::Windows1252: return mpt::decode<Tsrcstring>(mpt::common_encoding::windows1252, src); break;
|
||
|
case Charset::Amiga: return mpt::decode<Tsrcstring>(mpt::common_encoding::amiga, src); break;
|
||
|
case Charset::RISC_OS: return mpt::decode<Tsrcstring>(mpt::common_encoding::riscos, src); break;
|
||
|
case Charset::ISO8859_1_no_C1: return mpt::decode<Tsrcstring>(mpt::common_encoding::iso8859_1_no_c1, src); break;
|
||
|
case Charset::ISO8859_15_no_C1: return mpt::decode<Tsrcstring>(mpt::common_encoding::iso8859_15_no_c1, src); break;
|
||
|
case Charset::Amiga_no_C1: return mpt::decode<Tsrcstring>(mpt::common_encoding::amiga_no_c1, src); break;
|
||
|
}
|
||
|
return mpt::widestring();
|
||
|
}
|
||
|
|
||
|
|
||
|
// templated on 8bit strings because of type-safe variants
|
||
|
template<typename Tdststring, typename Tsrcstring>
|
||
|
static Tdststring ConvertImpl(Charset to, Charset from, const Tsrcstring &src)
|
||
|
{
|
||
|
static_assert(sizeof(typename Tdststring::value_type) == sizeof(char));
|
||
|
static_assert(sizeof(typename Tsrcstring::value_type) == sizeof(char));
|
||
|
if(to == from)
|
||
|
{
|
||
|
const typename Tsrcstring::value_type * src_beg = src.data();
|
||
|
const typename Tsrcstring::value_type * src_end = src_beg + src.size();
|
||
|
return Tdststring(reinterpret_cast<const typename Tdststring::value_type *>(src_beg), reinterpret_cast<const typename Tdststring::value_type *>(src_end));
|
||
|
}
|
||
|
return EncodeImpl<Tdststring>(to, DecodeImpl(from, src));
|
||
|
}
|
||
|
|
||
|
|
||
|
|
||
|
} // namespace String
|
||
|
|
||
|
|
||
|
bool IsUTF8(const std::string &str)
|
||
|
{
|
||
|
return mpt::is_utf8(str);
|
||
|
}
|
||
|
|
||
|
|
||
|
#if MPT_WSTRING_CONVERT
|
||
|
std::wstring ToWide(Charset from, const std::string &str)
|
||
|
{
|
||
|
return String::DecodeImpl(from, str);
|
||
|
}
|
||
|
#if defined(MPT_ENABLE_CHARSET_LOCALE)
|
||
|
std::wstring ToWide(const mpt::lstring &str)
|
||
|
{
|
||
|
return String::DecodeImpl(Charset::Locale, str);
|
||
|
}
|
||
|
#endif // MPT_ENABLE_CHARSET_LOCALE
|
||
|
#endif
|
||
|
|
||
|
#if MPT_WSTRING_CONVERT
|
||
|
std::string ToCharset(Charset to, const std::wstring &str)
|
||
|
{
|
||
|
return String::EncodeImpl<std::string>(to, str);
|
||
|
}
|
||
|
#endif
|
||
|
std::string ToCharset(Charset to, Charset from, const std::string &str)
|
||
|
{
|
||
|
return String::ConvertImpl<std::string>(to, from, str);
|
||
|
}
|
||
|
#if defined(MPT_ENABLE_CHARSET_LOCALE)
|
||
|
std::string ToCharset(Charset to, const mpt::lstring &str)
|
||
|
{
|
||
|
return String::ConvertImpl<std::string>(to, Charset::Locale, str);
|
||
|
}
|
||
|
#endif // MPT_ENABLE_CHARSET_LOCALE
|
||
|
|
||
|
#if defined(MPT_ENABLE_CHARSET_LOCALE)
|
||
|
#if MPT_WSTRING_CONVERT
|
||
|
mpt::lstring ToLocale(const std::wstring &str)
|
||
|
{
|
||
|
return String::EncodeImpl<mpt::lstring>(Charset::Locale, str);
|
||
|
}
|
||
|
#endif
|
||
|
mpt::lstring ToLocale(Charset from, const std::string &str)
|
||
|
{
|
||
|
return String::ConvertImpl<mpt::lstring>(Charset::Locale, from, str);
|
||
|
}
|
||
|
#endif // MPT_ENABLE_CHARSET_LOCALE
|
||
|
|
||
|
#if MPT_OS_WINDOWS
|
||
|
#if MPT_WSTRING_CONVERT
|
||
|
mpt::winstring ToWin(const std::wstring &str)
|
||
|
{
|
||
|
#ifdef UNICODE
|
||
|
return str;
|
||
|
#else
|
||
|
return ToLocale(str);
|
||
|
#endif
|
||
|
}
|
||
|
#endif
|
||
|
mpt::winstring ToWin(Charset from, const std::string &str)
|
||
|
{
|
||
|
#ifdef UNICODE
|
||
|
return ToWide(from, str);
|
||
|
#else
|
||
|
return ToLocale(from, str);
|
||
|
#endif
|
||
|
}
|
||
|
#if defined(MPT_ENABLE_CHARSET_LOCALE)
|
||
|
mpt::winstring ToWin(const mpt::lstring &str)
|
||
|
{
|
||
|
#ifdef UNICODE
|
||
|
return ToWide(str);
|
||
|
#else
|
||
|
return str;
|
||
|
#endif
|
||
|
}
|
||
|
#endif // MPT_ENABLE_CHARSET_LOCALE
|
||
|
#endif // MPT_OS_WINDOWS
|
||
|
|
||
|
|
||
|
#if defined(MPT_WITH_MFC)
|
||
|
|
||
|
CString ToCString(const std::wstring &str)
|
||
|
{
|
||
|
#ifdef UNICODE
|
||
|
return str.c_str();
|
||
|
#else
|
||
|
return ToCharset(Charset::Locale, str).c_str();
|
||
|
#endif
|
||
|
}
|
||
|
CString ToCString(Charset from, const std::string &str)
|
||
|
{
|
||
|
#ifdef UNICODE
|
||
|
return ToWide(from, str).c_str();
|
||
|
#else
|
||
|
return ToCharset(Charset::Locale, from, str).c_str();
|
||
|
#endif
|
||
|
}
|
||
|
std::wstring ToWide(const CString &str)
|
||
|
{
|
||
|
#ifdef UNICODE
|
||
|
return str.GetString();
|
||
|
#else
|
||
|
return ToWide(Charset::Locale, str.GetString());
|
||
|
#endif
|
||
|
}
|
||
|
std::string ToCharset(Charset to, const CString &str)
|
||
|
{
|
||
|
#ifdef UNICODE
|
||
|
return ToCharset(to, str.GetString());
|
||
|
#else
|
||
|
return ToCharset(to, Charset::Locale, str.GetString());
|
||
|
#endif
|
||
|
}
|
||
|
#if defined(MPT_ENABLE_CHARSET_LOCALE)
|
||
|
CString ToCString(const mpt::lstring &str)
|
||
|
{
|
||
|
#ifdef UNICODE
|
||
|
return ToWide(str).c_str();
|
||
|
#else
|
||
|
return str.c_str();
|
||
|
#endif
|
||
|
}
|
||
|
mpt::lstring ToLocale(const CString &str)
|
||
|
{
|
||
|
#ifdef UNICODE
|
||
|
return String::EncodeImpl<mpt::lstring>(Charset::Locale, str.GetString());
|
||
|
#else
|
||
|
return str.GetString();
|
||
|
#endif
|
||
|
}
|
||
|
#endif // MPT_ENABLE_CHARSET_LOCALE
|
||
|
#if MPT_OS_WINDOWS
|
||
|
mpt::winstring ToWin(const CString &str)
|
||
|
{
|
||
|
return str.GetString();
|
||
|
}
|
||
|
#endif // MPT_OS_WINDOWS
|
||
|
|
||
|
#endif // MPT_WITH_MFC
|
||
|
|
||
|
|
||
|
#if MPT_USTRING_MODE_WIDE
|
||
|
// inline
|
||
|
#else // !MPT_USTRING_MODE_WIDE
|
||
|
#if MPT_WSTRING_CONVERT
|
||
|
mpt::ustring ToUnicode(const std::wstring &str)
|
||
|
{
|
||
|
return String::EncodeImpl<mpt::ustring>(mpt::Charset::UTF8, str);
|
||
|
}
|
||
|
#endif
|
||
|
mpt::ustring ToUnicode(Charset from, const std::string &str)
|
||
|
{
|
||
|
return String::ConvertImpl<mpt::ustring>(mpt::Charset::UTF8, from, str);
|
||
|
}
|
||
|
#if defined(MPT_ENABLE_CHARSET_LOCALE)
|
||
|
mpt::ustring ToUnicode(const mpt::lstring &str)
|
||
|
{
|
||
|
return String::ConvertImpl<mpt::ustring>(mpt::Charset::UTF8, mpt::Charset::Locale, str);
|
||
|
}
|
||
|
#endif // MPT_ENABLE_CHARSET_LOCALE
|
||
|
#if defined(MPT_WITH_MFC)
|
||
|
mpt::ustring ToUnicode(const CString &str)
|
||
|
{
|
||
|
#ifdef UNICODE
|
||
|
return String::EncodeImpl<mpt::ustring>(mpt::Charset::UTF8, str.GetString());
|
||
|
#else // !UNICODE
|
||
|
return String::ConvertImpl<mpt::ustring, std::string>(mpt::Charset::UTF8, mpt::Charset::Locale, str.GetString());
|
||
|
#endif // UNICODE
|
||
|
}
|
||
|
#endif // MPT_WITH_MFC
|
||
|
#endif // MPT_USTRING_MODE_WIDE
|
||
|
|
||
|
#if MPT_USTRING_MODE_WIDE
|
||
|
// nothing, std::wstring overloads will catch all stuff
|
||
|
#else // !MPT_USTRING_MODE_WIDE
|
||
|
#if MPT_WSTRING_CONVERT
|
||
|
std::wstring ToWide(const mpt::ustring &str)
|
||
|
{
|
||
|
return String::DecodeImpl<mpt::ustring>(mpt::Charset::UTF8, str);
|
||
|
}
|
||
|
#endif
|
||
|
std::string ToCharset(Charset to, const mpt::ustring &str)
|
||
|
{
|
||
|
return String::ConvertImpl<std::string, mpt::ustring>(to, mpt::Charset::UTF8, str);
|
||
|
}
|
||
|
#if defined(MPT_ENABLE_CHARSET_LOCALE)
|
||
|
mpt::lstring ToLocale(const mpt::ustring &str)
|
||
|
{
|
||
|
return String::ConvertImpl<mpt::lstring, mpt::ustring>(mpt::Charset::Locale, mpt::Charset::UTF8, str);
|
||
|
}
|
||
|
#endif // MPT_ENABLE_CHARSET_LOCALE
|
||
|
#if MPT_OS_WINDOWS
|
||
|
mpt::winstring ToWin(const mpt::ustring &str)
|
||
|
{
|
||
|
#ifdef UNICODE
|
||
|
return String::DecodeImpl<mpt::ustring>(mpt::Charset::UTF8, str);
|
||
|
#else
|
||
|
return String::ConvertImpl<mpt::lstring, mpt::ustring>(mpt::Charset::Locale, mpt::Charset::UTF8, str);
|
||
|
#endif
|
||
|
}
|
||
|
#endif // MPT_OS_WINDOWS
|
||
|
#if defined(MPT_WITH_MFC)
|
||
|
CString ToCString(const mpt::ustring &str)
|
||
|
{
|
||
|
#ifdef UNICODE
|
||
|
return String::DecodeImpl<mpt::ustring>(mpt::Charset::UTF8, str).c_str();
|
||
|
#else // !UNICODE
|
||
|
return String::ConvertImpl<std::string, mpt::ustring>(mpt::Charset::Locale, mpt::Charset::UTF8, str).c_str();
|
||
|
#endif // UNICODE
|
||
|
}
|
||
|
#endif // MPT_WITH_MFC
|
||
|
#endif // MPT_USTRING_MODE_WIDE
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
static mpt::Charset CharsetFromCodePage(uint16 codepage, mpt::Charset fallback, bool * isFallback = nullptr)
|
||
|
{
|
||
|
mpt::Charset result = fallback;
|
||
|
switch(codepage)
|
||
|
{
|
||
|
case 65001:
|
||
|
result = mpt::Charset::UTF8;
|
||
|
if(isFallback) *isFallback = false;
|
||
|
break;
|
||
|
case 20127:
|
||
|
result = mpt::Charset::ASCII;
|
||
|
if(isFallback) *isFallback = false;
|
||
|
break;
|
||
|
case 28591:
|
||
|
result = mpt::Charset::ISO8859_1;
|
||
|
if(isFallback) *isFallback = false;
|
||
|
break;
|
||
|
case 28605:
|
||
|
result = mpt::Charset::ISO8859_15;
|
||
|
if(isFallback) *isFallback = false;
|
||
|
break;
|
||
|
case 437:
|
||
|
result = mpt::Charset::CP437;
|
||
|
if(isFallback) *isFallback = false;
|
||
|
break;
|
||
|
case 1252:
|
||
|
result = mpt::Charset::Windows1252;
|
||
|
if(isFallback) *isFallback = false;
|
||
|
break;
|
||
|
default:
|
||
|
result = fallback;
|
||
|
if(isFallback) *isFallback = true;
|
||
|
break;
|
||
|
}
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
mpt::ustring ToUnicode(uint16 codepage, mpt::Charset fallback, const std::string &str)
|
||
|
{
|
||
|
#if MPT_OS_WINDOWS
|
||
|
mpt::ustring result;
|
||
|
bool noCharsetMatch = true;
|
||
|
mpt::Charset charset = mpt::CharsetFromCodePage(codepage, fallback, &noCharsetMatch);
|
||
|
if(noCharsetMatch && mpt::has_codepage(codepage))
|
||
|
{
|
||
|
result = mpt::ToUnicode(mpt::decode<std::string>(codepage, str));
|
||
|
} else
|
||
|
{
|
||
|
result = mpt::ToUnicode(charset, str);
|
||
|
}
|
||
|
return result;
|
||
|
#else // !MPT_OS_WINDOWS
|
||
|
return mpt::ToUnicode(mpt::CharsetFromCodePage(codepage, fallback), str);
|
||
|
#endif // MPT_OS_WINDOWS
|
||
|
}
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
char ToLowerCaseAscii(char c)
|
||
|
{
|
||
|
return mpt::to_lower_ascii(c);
|
||
|
}
|
||
|
|
||
|
char ToUpperCaseAscii(char c)
|
||
|
{
|
||
|
return mpt::to_upper_ascii(c);
|
||
|
}
|
||
|
|
||
|
std::string ToLowerCaseAscii(std::string s)
|
||
|
{
|
||
|
std::transform(s.begin(), s.end(), s.begin(), static_cast<char(*)(char)>(&mpt::ToLowerCaseAscii));
|
||
|
return s;
|
||
|
}
|
||
|
|
||
|
std::string ToUpperCaseAscii(std::string s)
|
||
|
{
|
||
|
std::transform(s.begin(), s.end(), s.begin(), static_cast<char(*)(char)>(&mpt::ToUpperCaseAscii));
|
||
|
return s;
|
||
|
}
|
||
|
|
||
|
int CompareNoCaseAscii(const char *a, const char *b, std::size_t n)
|
||
|
{
|
||
|
while(n--)
|
||
|
{
|
||
|
unsigned char ac = mpt::char_value(mpt::ToLowerCaseAscii(*a));
|
||
|
unsigned char bc = mpt::char_value(mpt::ToLowerCaseAscii(*b));
|
||
|
if(ac != bc)
|
||
|
{
|
||
|
return ac < bc ? -1 : 1;
|
||
|
} else if(!ac && !bc)
|
||
|
{
|
||
|
return 0;
|
||
|
}
|
||
|
++a;
|
||
|
++b;
|
||
|
}
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
int CompareNoCaseAscii(std::string_view a, std::string_view b)
|
||
|
{
|
||
|
for(std::size_t i = 0; i < std::min(a.length(), b.length()); ++i)
|
||
|
{
|
||
|
unsigned char ac = mpt::char_value(mpt::ToLowerCaseAscii(a[i]));
|
||
|
unsigned char bc = mpt::char_value(mpt::ToLowerCaseAscii(b[i]));
|
||
|
if(ac != bc)
|
||
|
{
|
||
|
return ac < bc ? -1 : 1;
|
||
|
} else if(!ac && !bc)
|
||
|
{
|
||
|
return 0;
|
||
|
}
|
||
|
}
|
||
|
if(a.length() == b.length())
|
||
|
{
|
||
|
return 0;
|
||
|
}
|
||
|
return a.length() < b.length() ? -1 : 1;
|
||
|
}
|
||
|
|
||
|
int CompareNoCaseAscii(const std::string &a, const std::string &b)
|
||
|
{
|
||
|
return CompareNoCaseAscii(std::string_view(a), std::string_view(b));
|
||
|
}
|
||
|
|
||
|
|
||
|
#if defined(MODPLUG_TRACKER)
|
||
|
|
||
|
mpt::ustring ToLowerCase(const mpt::ustring &s)
|
||
|
{
|
||
|
#if defined(MPT_WITH_MFC)
|
||
|
#if defined(UNICODE)
|
||
|
CString tmp = mpt::ToCString(s);
|
||
|
tmp.MakeLower();
|
||
|
return mpt::ToUnicode(tmp);
|
||
|
#else // !UNICODE
|
||
|
CStringW tmp = mpt::ToWide(s).c_str();
|
||
|
tmp.MakeLower();
|
||
|
return mpt::ToUnicode(tmp.GetString());
|
||
|
#endif // UNICODE
|
||
|
#else // !MPT_WITH_MFC
|
||
|
std::wstring ws = mpt::ToWide(s);
|
||
|
std::transform(ws.begin(), ws.end(), ws.begin(), &std::towlower);
|
||
|
return mpt::ToUnicode(ws);
|
||
|
#endif // MPT_WITH_MFC
|
||
|
}
|
||
|
|
||
|
mpt::ustring ToUpperCase(const mpt::ustring &s)
|
||
|
{
|
||
|
#if defined(MPT_WITH_MFC)
|
||
|
#if defined(UNICODE)
|
||
|
CString tmp = mpt::ToCString(s);
|
||
|
tmp.MakeUpper();
|
||
|
return mpt::ToUnicode(tmp);
|
||
|
#else // !UNICODE
|
||
|
CStringW tmp = mpt::ToWide(s).c_str();
|
||
|
tmp.MakeUpper();
|
||
|
return mpt::ToUnicode(tmp.GetString());
|
||
|
#endif // UNICODE
|
||
|
#else // !MPT_WITH_MFC
|
||
|
std::wstring ws = mpt::ToWide(s);
|
||
|
std::transform(ws.begin(), ws.end(), ws.begin(), &std::towlower);
|
||
|
return mpt::ToUnicode(ws);
|
||
|
#endif // MPT_WITH_MFC
|
||
|
}
|
||
|
|
||
|
#endif // MODPLUG_TRACKER
|
||
|
|
||
|
|
||
|
|
||
|
} // namespace mpt
|
||
|
|
||
|
|
||
|
|
||
|
OPENMPT_NAMESPACE_END
|