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PowerBuilder

Receive Text up to a Match into a StringBuilder

See more Socket/SSL/TLS Examples

Demonstrates Socket.ReceiveUntilMatchSb, which receives bytes until an exact byte sequence is found and appends the received text to a StringBuilder.

Background. The match string is encoded using StringCharset and compared byte-for-byte. The match may span multiple underlying network reads.

Chilkat PowerBuilder Downloads

PowerBuilder
integer li_rc
integer li_Success
oleobject loo_Socket
integer li_BTls
integer li_MaxWaitMs
string ls_Command
oleobject loo_Sb
string ls_Response

li_Success = 0

loo_Socket = create oleobject
li_rc = loo_Socket.ConnectToNewObject("Chilkat.Socket")
if li_rc < 0 then
    destroy loo_Socket
    MessageBox("Error","Connecting to COM object failed")
    return
end if

//  Connect to the server using TLS.  The 3rd argument enables the TLS handshake after the TCP
//  connection succeeds; the 4th is the maximum time to wait, in milliseconds.
li_BTls = 1
li_MaxWaitMs = 5000
li_Success = loo_Socket.Connect("example.com",5000,li_BTls,li_MaxWaitMs)
if li_Success = 0 then
    Write-Debug loo_Socket.LastErrorText
    destroy loo_Socket
    return
end if

//  StringCharset controls the character encoding used when sending and receiving text.
loo_Socket.StringCharset = "utf-8"
//  Send a request using a simple application-defined text protocol in which each message ends with a
//  CRLF.
ls_Command = "STATUS~r~n"
li_Success = loo_Socket.SendString(ls_Command)
if li_Success = 0 then
    Write-Debug loo_Socket.LastErrorText
    destroy loo_Socket
    return
end if

//  Receive bytes until an exact byte sequence is found, appending the received text to a
//  StringBuilder.  The match may span multiple underlying network reads.
loo_Sb = create oleobject
li_rc = loo_Sb.ConnectToNewObject("Chilkat.StringBuilder")

li_Success = loo_Socket.ReceiveUntilMatchSb("<EOM>",loo_Sb)
if li_Success = 0 then
    Write-Debug loo_Socket.LastErrorText
    destroy loo_Socket
    destroy loo_Sb
    return
end if

ls_Response = loo_Sb.GetAsString()
if loo_Sb.LastMethodSuccess = 0 then
    Write-Debug loo_Sb.LastErrorText
    destroy loo_Socket
    destroy loo_Sb
    return
end if

Write-Debug ls_Response


destroy loo_Socket
destroy loo_Sb