mirror of
https://github.com/WinampDesktop/winamp.git
synced 2024-12-18 18:46:22 +01:00
72 lines
2.8 KiB
C++
72 lines
2.8 KiB
C++
/*
|
|
* Message.h
|
|
* ---------
|
|
* Purpose: Various functions for processing song messages (allocating, reading from file...)
|
|
* Notes : (currently none)
|
|
* Authors: OpenMPT Devs
|
|
* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
|
|
*/
|
|
|
|
|
|
#pragma once
|
|
|
|
#include "openmpt/all/BuildSettings.hpp"
|
|
|
|
#include <string>
|
|
|
|
#include "../common/FileReaderFwd.h"
|
|
|
|
OPENMPT_NAMESPACE_BEGIN
|
|
|
|
class SongMessage : public std::string
|
|
{
|
|
public:
|
|
|
|
// Line ending types (for reading song messages from module files)
|
|
enum LineEnding
|
|
{
|
|
leCR, // Carriage Return (0x0D, \r)
|
|
leLF, // Line Feed (0x0A \n)
|
|
leCRLF, // Carriage Return, Line Feed (0x0D0A, \r\n)
|
|
leMixed, // It is not defined whether Carriage Return or Line Feed is the actual line ending. Both are accepted.
|
|
leAutodetect, // Detect suitable line ending
|
|
};
|
|
|
|
enum
|
|
{
|
|
InternalLineEnding = '\r', // The character that represents line endings internally
|
|
};
|
|
|
|
// Read song message from a mapped file.
|
|
// [in] data: pointer to the data in memory that is going to be read
|
|
// [in] length: number of characters that should be read, not including a possible trailing null terminator (it is automatically appended).
|
|
// [in] lineEnding: line ending formatting of the text in memory.
|
|
// [out] returns true on success.
|
|
bool Read(const std::byte *data, const size_t length, LineEnding lineEnding);
|
|
bool Read(FileReader &file, const size_t length, LineEnding lineEnding);
|
|
|
|
// Read comments with fixed line length from a mapped file.
|
|
// [in] data: pointer to the data in memory that is going to be read
|
|
// [in] length: number of characters that should be read, not including a possible trailing null terminator (it is automatically appended).
|
|
// [in] lineLength: The fixed length of a line.
|
|
// [in] lineEndingLength: The padding space between two fixed lines. (there could for example be a null char after every line)
|
|
// [out] returns true on success.
|
|
bool ReadFixedLineLength(const std::byte *data, const size_t length, const size_t lineLength, const size_t lineEndingLength);
|
|
bool ReadFixedLineLength(FileReader &file, const size_t length, const size_t lineLength, const size_t lineEndingLength);
|
|
|
|
// Retrieve song message.
|
|
// [in] lineEnding: line ending formatting of the text in memory.
|
|
// [out] returns formatted song message.
|
|
std::string GetFormatted(const LineEnding lineEnding) const;
|
|
|
|
// Set song message.
|
|
// [in] lineEnding: line ending formatting of the text in memory. Must be leCR or leLF or leCRLF,
|
|
// [out] returns true if the message has been changed.
|
|
bool SetFormatted(std::string message, LineEnding lineEnding);
|
|
|
|
// Sets the song message. Expects the provided string to already use the internal line ending character.
|
|
void SetRaw(std::string message) noexcept { assign(std::move(message)); }
|
|
};
|
|
|
|
OPENMPT_NAMESPACE_END
|