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--- cookbooks:devel:transformations [2018/07/12 08:32]
gaaf [{re.subst,expression}]
+++ cookbooks:devel:transformations [2019/08/19 14:30]
miconda [Parameters List Transformations]
@@ Line 1: / Line 1: @@
-====== Kamailio SIP Server v5.2.x (devel): Transformations ======
+====== Kamailio SIP Server v5.3.x (devel): Transformations ======
 <code>
@@ Line 316: / Line 316: @@
 <code c>
 $(var(x){s.corehash})
+</code>
+==== {s.unquote} ====
+Return the value without surrounding single (') or double quotes (").
+<code c>
+$var(x) = "\"alice\"";
+$var(alice) = $(var(x){s.unquote});
+</code>
+==== {s.unbracket} ====
+Return the value without surrounding (), [], {} or <>.
+<code c>
+$var(x) = "<sip:alice@test.sip>";
+$var(uri) = $(var(x){s.unbracket});
 </code>
 ===== URI Transformations =====
@@ Line 398: / Line 416: @@
 The name of the transformation starts with 'param.'. The PV value is considered to be a string like name1=value1;name2=value2;...". The transformations returns the value for a specific parameter, or the name of a parameter at a specific index.
-Available transformations in this class:
+Available transformations in this class are presented in the next sections.
+**Important Note:** the delimiter cannot be comma (,), because this trasformation is using SIP header/URI parameter parser and the comma is a delimiter between serialized SIP header/URI bodies. The workaround is to use the subst transformation to replace the comma with another character that is used then as separator.
@@ Line 693: / Line 713: @@
 $(hu{url.querystring}) => "this=is&the=querystring"
+</code>
+===== JSON Transformations =====
+<fc #0000ff>This transformation class is exported by **json** module.</fc>
+==== {json.parse} ====
+You can use the transformation to extract values from the json structured pseudo-variables
+<code>
+$var(Custom-Data) = $(rb{json.parse,Custom-Data});
 </code>

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