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) = $var(i) + 1;
}
/M
https://www.kamailio.org/wiki/cookbooks/5.2.x/transformations#lineat_pos Try {line.at,pos}
On Tue, May 18, 2021, 08:09 Martin Nyström martin.nystrom@connectel.se wrote:
Hello,
I am simply trying to parse a SDP body, read it line by line and save the line into a variable for further processing. It seems when using a newline \n as the delimiter it breaks down with errors. How should I treat this issue and properly managed the newline as delimiter?
May 17 12:00:00 ip-10-120-120-12 kamailio[12878]: 0(12878) ERROR: pv [pv_trans.c:2326]: tr_parse_string(): invalid select transformation: select,$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) = $var(i) + 1;}
/M __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions
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Hello,
the separator has to be a single character as documented:
* https://www.kamailio.org/wiki/cookbooks/5.5.x/transformations#sselect_index_...
It does not support variables.
Looking at the code, it also does not support escaped characters, probably this feature can be useful to introduce.
Cheers, Daniel
On 17.05.21 12:03, Martin Nyström wrote:
Hello,
I am simply trying to parse a SDP body, read it line by line and save the line into a variable for further processing. It seems when using a newline \n as the delimiter it breaks down with errors. How should I treat this issue and properly managed the newline as delimiter?
May 17 12:00:00 ip-10-120-120-12 kamailio[12878]: 0(12878) ERROR: pv [pv_trans.c:2326]: tr_parse_string(): invalid select transformation: select,$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) = $var(i) + 1;
}
/M
Kamailio - Users Mailing List - Non Commercial Discussions
- sr-users@lists.kamailio.org
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Thanks,
I did as previously suggested and used line.at instead. It works so my issue can be considered solved. But yes, I agree it can be a useful feature to introduce.
/M
From: Daniel-Constantin Mierla miconda@gmail.com Reply to: "miconda@gmail.com" miconda@gmail.com Date: Thursday, 20 May 2021 at 13:28 To: "Kamailio (SER) - Users Mailing List" sr-users@lists.kamailio.org, Martin Nyström martin.nystrom@connectel.se Subject: Re: [SR-Users] Text transformations s.select and newline char
Hello,
the separator has to be a single character as documented:
* https://www.kamailio.org/wiki/cookbooks/5.5.x/transformations#sselect_index_...
It does not support variables.
Looking at the code, it also does not support escaped characters, probably this feature can be useful to introduce.
Cheers, Daniel On 17.05.21 12:03, Martin Nyström wrote: Hello,
I am simply trying to parse a SDP body, read it line by line and save the line into a variable for further processing. It seems when using a newline \n as the delimiter it breaks down with errors. How should I treat this issue and properly managed the newline as delimiter?
May 17 12:00:00 ip-10-120-120-12 kamailio[12878]: 0(12878) ERROR: pv [pv_trans.c:2326]: tr_parse_string(): invalid select transformation: select,$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;
}
/M
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