goirc/client/line.go

57 lines
1.4 KiB
Go

package client
import (
"strings"
"time"
)
// We parse an incoming line into this struct. Line.Cmd is used as the trigger
// name for incoming event handlers, see *Conn.recv() for details.
// Raw =~ ":nick!user@host cmd args[] :text"
// Src == "nick!user@host"
// Cmd == e.g. PRIVMSG, 332
type Line struct {
Nick, Ident, Host, Src string
Cmd, Raw string
Args []string
Time *time.Time
}
func parseLine(s string) *Line {
line := &Line{Raw: s}
if s[0] == ':' {
// remove a source and parse it
if idx := strings.Index(s, " "); idx != -1 {
line.Src, s = s[1:idx], s[idx+1:len(s)]
} else {
// pretty sure we shouldn't get here ...
line.Src = s[1:len(s)]
return line
}
// src can be the hostname of the irc server or a nick!user@host
line.Host = line.Src
nidx, uidx := strings.Index(line.Src, "!"), strings.Index(line.Src, "@")
if uidx != -1 && nidx != -1 {
line.Nick = line.Src[0:nidx]
line.Ident = line.Src[nidx+1 : uidx]
line.Host = line.Src[uidx+1 : len(line.Src)]
}
}
// now we're here, we've parsed a :nick!user@host or :server off
// s should contain "cmd args[] :text"
args := strings.SplitN(s, " :", 2)
if len(args) > 1 {
args = append(strings.Fields(args[0]), args[1])
} else {
args = strings.Fields(args[0])
}
line.Cmd = strings.ToUpper(args[0])
if len(args) > 1 {
line.Args = args[1:len(args)]
}
return line
}