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authorYash Srivastav <yash111998@gmail.com>2019-06-08 01:05:23 +0530
committerDrew DeVault <sir@cmpwn.com>2019-06-07 16:22:01 -0400
commitfca7321639f77bbf825dc897156d7a21993a2c69 (patch)
tree5e503bf4ebd9672eef2af5cbad49b5b73405e548 /lib/indexformat.go
parent6d491569c0f95bec03cc837446c2836acabe99ae (diff)
downloadaerc-fca7321639f77bbf825dc897156d7a21993a2c69.tar.gz
Message list: implement index-format option
Diffstat (limited to 'lib/indexformat.go')
-rw-r--r--lib/indexformat.go231
1 files changed, 231 insertions, 0 deletions
diff --git a/lib/indexformat.go b/lib/indexformat.go
new file mode 100644
index 00000000..3e139e65
--- /dev/null
+++ b/lib/indexformat.go
@@ -0,0 +1,231 @@
+package lib
+
+import (
+ "errors"
+ "fmt"
+ "strings"
+ "unicode"
+
+ "github.com/emersion/go-imap"
+
+ "git.sr.ht/~sircmpwn/aerc/config"
+ "git.sr.ht/~sircmpwn/aerc/worker/types"
+)
+
+func ParseIndexFormat(conf *config.AercConfig, number int,
+ msg *types.MessageInfo) (string, []interface{}, error) {
+
+ format := conf.Ui.IndexFormat
+ 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.MailboxName,
+ addr.HostName))
+ case 'A':
+ var addr *imap.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.MailboxName,
+ addr.HostName))
+ case 'C':
+ retval = append(retval, 'd')
+ args = append(args, number)
+ case 'd':
+ retval = append(retval, 's')
+ args = append(args, msg.InternalDate.Format(conf.Ui.TimestampFormat))
+ case 'D':
+ retval = append(retval, 's')
+ args = append(args, msg.InternalDate.Local().Format(conf.Ui.TimestampFormat))
+ case 'f':
+ if len(msg.Envelope.From) == 0 {
+ return "", nil, errors.New("found no address for sender")
+ }
+ addr := FormatAddress(msg.Envelope.From[0])
+ 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.PersonalName != "" {
+ val = addr.PersonalName
+ } else {
+ val = fmt.Sprintf("%s@%s",
+ addr.MailboxName, addr.HostName)
+ }
+ 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.PersonalName != "" {
+ val = addr.PersonalName
+ } else {
+ val = fmt.Sprintf("%s@%s",
+ addr.MailboxName, addr.HostName)
+ }
+ retval = append(retval, 's')
+ args = append(args, val)
+ case 'r':
+ addrs := FormatAddresses(msg.Envelope.To)
+ retval = append(retval, 's')
+ args = append(args, addrs)
+ case 'R':
+ addrs := 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 '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.MailboxName)
+ 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.PersonalName != "" {
+ retval = append(retval, 's')
+ args = append(args, strings.Split(addr.PersonalName, " ")[0])
+ }
+ case 'Z':
+ // calculate all flags
+ var readFlag = ""
+ var delFlag = ""
+ var flaggedFlag = ""
+ for _, flag := range msg.Flags {
+ if flag == "\\Seen" {
+ readFlag = "O" // message is old
+ } else if flag == "\\Recent" {
+ readFlag = "N" // message is new
+ } else if flag == "\\Answered" {
+ readFlag = "r" // message has been replied to
+ } else if flag == "\\Deleted" {
+ delFlag = "D"
+ // TODO: check if attachments
+ } else if flag == "\\Flagged" {
+ flaggedFlag = "!"
+ }
+ // TODO: check gpg stuff
+ }
+ retval = append(retval, '3', 's')
+ args = append(args, readFlag+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 index format")
+}