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|
package main
func isCommand(text string) (bool, string) {
if text[0] == '/' {
if len(text) > 1 && text[1] == '/' {
text = text[1:]
return false, text
}
return true, text
}
return false, text
}
func (a *application) processCommand(text string) {
text = text[1:]
args := []string {""}
escaped := false
quoted := false
for _, c := range text {
if escaped {
args[len(args) - 1] += string(c)
continue
}
switch c {
case '\\':
escaped = true
case '"':
quoted = !quoted
case ' ':
if !quoted {
if args[len(args) - 1] != "" {
args = append(args, "")
}
break
}
fallthrough
default:
args[len(args) - 1] += string(c)
}
}
if len(text) > len(args[0]) {
text = text[len(args[0]) + 1:]
} else {
text = ""
}
a.doCommand(args[0], args[1:], text)
}
func (a *application) doCommand(command string, args []string, text string) {
if !a.connected {
return
}
argN := func(n int) bool {
if len(args) != n {
a.cmdWindow.err(
"%s: expected %d arguments, was %d", command, n, len(args),
)
return false
}
return true
}
switch command {
case "nick":
a.setNick(text)
case "join":
if !argN(1) {
break
}
if a.authenticated {
a.join(args[0])
}
case "leave":
if !argN(0) {
break
}
win := a.windowCache.Get(a.currentWindow)
switch win.(type) {
case *channelWindow:
win.(*channelWindow).leaveChannel()
}
a.currentWindow = cmdWindowLocation {}
case "create":
if !argN(1) {
break
}
if a.authenticated {
a.createChannel(args[0])
}
case "help":
var (
hm helpMsg
ok bool
cmd string
)
if len(args) == 0 {
hm, ok = getHelp("")
} else {
if !argN(1) {
break
}
cmd = args[0]
if cmd[0] == '/' {
if len(cmd) > 1 {
cmd = cmd[1:]
} else {
cmd = ""
}
}
hm, ok = getHelp(cmd)
}
if !ok {
a.cmdWindow.err("unknown command: /" + cmd)
} else {
a.cmdWindow.buf.Add(hm)
}
case "quit":
a.quit = true
default:
a.cmdWindow.err("unknown command: /" + command)
}
}
|
