diff options
Diffstat (limited to 'lib/format')
| -rw-r--r-- | lib/format/format.go | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/lib/format/format.go b/lib/format/format.go new file mode 100644 index 0000000..b403f2d --- /dev/null +++ b/lib/format/format.go @@ -0,0 +1,263 @@ +package format + +import ( + "errors" + "fmt" + "strings" + "unicode" + + "git.sr.ht/~sircmpwn/aerc/models" +) + +func ParseMessageFormat(format string, timestampformat string, + accountName string, number int, msg *models.MessageInfo) (string, + []interface{}, error) { + retval := make([]byte, 0, len(format)) + var args []interface{} + + var c rune + for i, ni := 0, 0; i < len(format); { + ni = strings.IndexByte(format[i:], '%') + if ni < 0 { + ni = len(format) + retval = append(retval, []byte(format[i:ni])...) + break + } + ni += i + 1 + // Check for fmt flags + if ni == len(format) { + goto handle_end_error + } + c = rune(format[ni]) + if c == '+' || c == '-' || c == '#' || c == ' ' || c == '0' { + ni++ + } + + // Check for precision and width + if ni == len(format) { + goto handle_end_error + } + c = rune(format[ni]) + for unicode.IsDigit(c) { + ni++ + c = rune(format[ni]) + } + if c == '.' { + ni++ + c = rune(format[ni]) + for unicode.IsDigit(c) { + ni++ + c = rune(format[ni]) + } + } + + retval = append(retval, []byte(format[i:ni])...) + // Get final format verb + if ni == len(format) { + goto handle_end_error + } + c = rune(format[ni]) + switch c { + case '%': + retval = append(retval, '%') + case 'a': + if len(msg.Envelope.From) == 0 { + return "", nil, + errors.New("found no address for sender") + } + addr := msg.Envelope.From[0] + retval = append(retval, 's') + args = append(args, + fmt.Sprintf("%s@%s", addr.Mailbox, addr.Host)) + case 'A': + var addr *models.Address + if len(msg.Envelope.ReplyTo) == 0 { + if len(msg.Envelope.From) == 0 { + return "", nil, + errors.New("found no address for sender or reply-to") + } else { + addr = msg.Envelope.From[0] + } + } else { + addr = msg.Envelope.ReplyTo[0] + } + retval = append(retval, 's') + args = append(args, + fmt.Sprintf("%s@%s", addr.Mailbox, addr.Host)) + case 'C': + retval = append(retval, 'd') + args = append(args, number) + case 'd': + retval = append(retval, 's') + args = append(args, + msg.InternalDate.Format(timestampformat)) + case 'D': + retval = append(retval, 's') + args = append(args, + msg.InternalDate.Local().Format(timestampformat)) + case 'f': + if len(msg.Envelope.From) == 0 { + return "", nil, + errors.New("found no address for sender") + } + addr := msg.Envelope.From[0].Format() + retval = append(retval, 's') + args = append(args, addr) + case 'F': + if len(msg.Envelope.From) == 0 { + return "", nil, + errors.New("found no address for sender") + } + addr := msg.Envelope.From[0] + // TODO: handle case when sender is current user. Then + // use recipient's name + var val string + if addr.Name != "" { + val = addr.Name + } else { + val = fmt.Sprintf("%s@%s", addr.Mailbox, addr.Host) + } + retval = append(retval, 's') + args = append(args, val) + + case 'i': + retval = append(retval, 's') + args = append(args, msg.Envelope.MessageId) + case 'n': + if len(msg.Envelope.From) == 0 { + return "", nil, + errors.New("found no address for sender") + } + addr := msg.Envelope.From[0] + var val string + if addr.Name != "" { + val = addr.Name + } else { + val = fmt.Sprintf("%s@%s", addr.Mailbox, addr.Host) + } + retval = append(retval, 's') + args = append(args, val) + case 'r': + addrs := models.FormatAddresses(msg.Envelope.To) + retval = append(retval, 's') + args = append(args, addrs) + case 'R': + addrs := models.FormatAddresses(msg.Envelope.Cc) + retval = append(retval, 's') + args = append(args, addrs) + case 's': + retval = append(retval, 's') + args = append(args, msg.Envelope.Subject) + case 't': + if len(msg.Envelope.To) == 0 { + return "", nil, + errors.New("found no address for recipient") + } + addr := msg.Envelope.To[0] + retval = append(retval, 's') + args = append(args, + fmt.Sprintf("%s@%s", addr.Mailbox, addr.Host)) + case 'T': + retval = append(retval, 's') + args = append(args, accountName) + case 'u': + if len(msg.Envelope.From) == 0 { + return "", nil, + errors.New("found no address for sender") + } + addr := msg.Envelope.From[0] + retval = append(retval, 's') + args = append(args, addr.Mailbox) + case 'v': + if len(msg.Envelope.From) == 0 { + return "", nil, + errors.New("found no address for sender") + } + addr := msg.Envelope.From[0] + // check if message is from current user + if addr.Name != "" { + retval = append(retval, 's') + args = append(args, + strings.Split(addr.Name, " ")[0]) + } + case 'Z': + // calculate all flags + var readReplyFlag = "" + var delFlag = "" + var flaggedFlag = "" + seen := false + recent := false + answered := false + for _, flag := range msg.Flags { + if flag == models.SeenFlag { + seen = true + } else if flag == models.RecentFlag { + recent = true + } else if flag == models.AnsweredFlag { + answered = true + } + if flag == models.DeletedFlag { + delFlag = "D" + // TODO: check if attachments + } + if flag == models.FlaggedFlag { + flaggedFlag = "!" + } + // TODO: check gpg stuff + } + if seen { + if answered { + readReplyFlag = "r" // message has been replied to + } + } else { + if recent { + readReplyFlag = "N" // message is new + } else { + readReplyFlag = "O" // message is old + } + } + retval = append(retval, '3', 's') + args = append(args, readReplyFlag+delFlag+flaggedFlag) + + // Move the below cases to proper alphabetical positions once + // implemented + case 'l': + // TODO: number of lines in the message + retval = append(retval, 'd') + args = append(args, msg.Size) + case 'e': + // TODO: current message number in thread + fallthrough + case 'E': + // TODO: number of messages in current thread + fallthrough + case 'H': + // TODO: spam attribute(s) of this message + fallthrough + case 'L': + // TODO: + fallthrough + case 'X': + // TODO: number of attachments + fallthrough + case 'y': + // TODO: X-Label field + fallthrough + case 'Y': + // TODO: X-Label field and some other constraints + fallthrough + default: + // Just ignore it and print as is + // so %k in index format becomes %%k to Printf + retval = append(retval, '%') + retval = append(retval, byte(c)) + } + i = ni + 1 + } + + return string(retval), args, nil + +handle_end_error: + return "", nil, + errors.New("reached end of string while parsing message format") +} |