zwoop commented on code in PR #12950:
URL: https://github.com/apache/trafficserver/pull/12950#discussion_r2928120794
##########
doc/admin-guide/configuration/hrw4u.en.rst:
##########
@@ -434,10 +434,58 @@ Groups
...
}
+Control Flow
+------------
+
+HRW4U conditionals use ``if``, ``elif``, and ``else`` blocks. Each branch
+takes a condition expression followed by a ``{ ... }`` body of statements:
+
+.. code-block:: none
+
+ if condition {
+ statement;
+ } elif other-condition {
+ statement;
+ } else {
+ statement;
+ }
+
+``elif`` and ``else`` are optional and can be chained. Branches can be nested
+to arbitrary depth:
+
+.. code-block:: none
+
+ REMAP {
+ if inbound.status > 399 {
+ if inbound.status < 500 {
+ if inbound.status == 404 {
+ inbound.resp.X-Error = "not-found";
+ } elif inbound.status == 403 {
+ inbound.resp.X-Error = "forbidden";
+ }
+ } else {
+ inbound.resp.X-Error = "server-error";
+ }
+ }
+ }
+
+The ``break;`` statement exits the current section immediately, skipping any
+remaining statements and branches:
+
+.. code-block:: none
+
+ REMAP {
+ if inbound.req.X-Internal != "1" {
+ break;
+ }
+ # Only reached for internal requests
+ inbound.req.X-Debug = "on";
+ }
Review Comment:
Well it breaks all hooks, not just the current one. Possibly exit would make
sense. I picked break ;)
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