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// Backwards-compatible protocol version.
const VERSION = 1;
// From the frontend to the relay.
struct CommandMessage {
u32 command_seq;
union CommandData switch (enum Command {
HELLO,
PING,
ACTIVE,
BUFFER_COMPLETE,
BUFFER_INPUT,
BUFFER_ACTIVATE,
BUFFER_LOG,
} command) {
case HELLO:
u32 version;
case PING:
void;
case ACTIVE:
void;
case BUFFER_COMPLETE:
string buffer_name;
string text;
u32 position;
case BUFFER_INPUT:
string buffer_name;
string text;
case BUFFER_ACTIVATE:
string buffer_name;
case BUFFER_LOG:
string buffer_name;
} data;
};
// From the relay to the frontend.
struct EventMessage {
u32 event_seq;
union EventData switch (enum Event {
PING,
BUFFER_UPDATE,
BUFFER_RENAME,
BUFFER_REMOVE,
BUFFER_ACTIVATE,
BUFFER_LINE,
BUFFER_CLEAR,
ERROR,
RESPONSE,
} event) {
case PING:
void;
case BUFFER_UPDATE:
string buffer_name;
case BUFFER_RENAME:
string buffer_name;
string new;
case BUFFER_REMOVE:
string buffer_name;
case BUFFER_ACTIVATE:
string buffer_name;
case BUFFER_LINE:
string buffer_name;
bool is_unimportant;
bool is_highlight;
enum Rendition {
BARE,
INDENT,
STATUS,
ERROR,
JOIN,
PART,
ACTION,
} rendition;
// Unix timestamp in seconds.
u64 when;
// Broken-up text, with in-band formatting.
union ItemData switch (enum Item {
TEXT,
RESET,
FG_COLOR,
BG_COLOR,
FLIP_BOLD,
FLIP_ITALIC,
FLIP_UNDERLINE,
FLIP_INVERSE,
FLIP_CROSSED_OUT,
FLIP_MONOSPACE,
} kind) {
case TEXT:
string text;
case RESET:
void;
case FG_COLOR:
i16 color;
case BG_COLOR:
i16 color;
case FLIP_BOLD:
case FLIP_ITALIC:
case FLIP_UNDERLINE:
case FLIP_INVERSE:
case FLIP_CROSSED_OUT:
case FLIP_MONOSPACE:
void;
} items<>;
case BUFFER_CLEAR:
string buffer_name;
case ERROR:
u32 command_seq;
string error;
case RESPONSE:
u32 command_seq;
union ResponseData switch (Command command) {
case BUFFER_COMPLETE:
u32 start;
string completions<>;
case BUFFER_LOG:
// UTF-8, but not guaranteed.
u8 log<>;
} data;
} data;
};
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