Hello,

I am simply trying to parse a SDP body, read it line by line and save the line into a variable for further processing. It seems when using a newline \n as the delimiter it breaks down with errors. How should I treat this issue and properly managed the newline as delimiter?

May 17 12:00:00 ip-10-120-120-12 kamailio[12878]: 0(12878) ERROR: pv [pv_trans.c:2326]: tr_parse_string(): invalid select transformation: select,$var(i),$var(delimeter)}!!

May 17 12:00:00 ip-10-120-120-12 kamailio[12878]: 0(12878) ERROR: <core> [core/pvapi.c:1717]: tr_lookup(): error parsing [{s.select,$var(i),$var(delimeter)}]

Block extracted from .cfg

sdp_get("$avp(sdp)");

$avp(lines) = $(avp(sdp){line.count});

$var(delimeter) = "\n";

$var(i) = 0;

while($var(i) < $avp(lines)) {

# This works

xlog("L_INFO", "==> Position $var(i): $(avp(sdp){s.select,$var(i),\n}) \n");

# This fails

$var(l1) = $(avp(sdp){s.select,$var(i),$var(delimeter)});

# This fails

$var(l2) = $(avp(sdp){s.select,$var(i),\n});

# This fails

$var(l3) = $(avp(sdp){s.select,$var(i),\\n});

# Supposed to do something funny with the $var(line) here

$var(i) = $var(i) + 1;

}