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[a_villacis at palosant...]

I am writing a dialplan context under asterisk 11.21.0 to handle SIP message routing between registered SIP peers using chan_sip. I am having trouble with double-quotes when the source peer uses a display name, which appears in quotes before the SIP URI. I
want to extract the SIP URI from MESSAGE(from) in order to (conditionally) route a failure message back to the source peer.

My test dialplan sets up variables like these:

exten => _X.,n,Set(RX=".*<(.+)>")
exten => _X.,n,Set(T1="Example name" <sip:example@example.com>)

If I just apply the regex operator ( on T1 using regexp RX, like this:

exten => _X.,n,Set(FROM_SIPURI=$[${T1}:${RX}])

...I get this syntax error:

[2016-08-08 15:04:02] WARNING[1653][C-00000000]: ast_expr2.fl:470 ast_yyerror: ast_yyerror(): syntax error: syntax error, unexpected ':', expecting '-' or '!' or '(' or '<token>'; Input:
"Example name" <sip:example@example.com>:".*<(.+)>"
^
(caret points at the colon character)

If I enclose the T1 variable in double quotes, like this:

exten => _X.,n,Set(FROM_SIPURI=$["${T1}":${RX}])

...I get this syntax error:

[2016-08-08 15:05:40] WARNING[1653][C-00000000]: ast_expr2.fl:470 ast_yyerror: ast_yyerror(): syntax error: syntax error, unexpected '<token>', expecting $end; Input:
""Example name" <sip:example@example.com>":".*<(.+)>"
^
(caret points at letter E)

If I use the QUOTE() function to quote the double quotes before applying the regexp, like this:

exten => _X.,n,Set(FROM_SIPURI=$[${QUOTE(${T1})}:${RX}])

... I get this syntax error:

[2016-08-08 14:53:35] WARNING[1653][C-00000000]: ast_expr2.fl:470 ast_yyerror: ast_yyerror(): syntax error: syntax error, unexpected '<token>', expecting $end; Input:
"\"Example name\" <sip:example@example.com>":".*<(.+)>"
^
(caret points at letter E)

Currently I am working around the issue by using REPLACE() to strip all double-quotes, but I believe this is not a correct solution. How should I write the $[ expression so that the double-quotes are handled correctly?


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[ewieling at nyigc.com]

How Set handles quotes can be changed with the 'app_set' setting in the
[compat] section of /etc/asterisk/asterisk.conf. See also:
https://wiki.asterisk.org/wiki/display/AST/Application_Set Perhaps you
have the value left over from an old Asterisk setup.

On 08/08/2016 04:31 PM, Alex Villací­s Lasso wrote:

[a_villacis at palosant...]

El 08/08/16 a las 21:34, Eric Wieling escribió: