If/then formatting in sql developer

There is advanced option for that (Line Breaks->IF->After IF). Unfortunately, it doesn't seem to have any effect.

On custom format page comment the following:

--> | [node) rel  & [node) condition

and

--> | [node) pls_expr & [node^) nonblock_compound_stmt  -- e.g. IF CASE a WHEN 3 THEN 4 ELSE a END > 7 THEN

P.S. In 17.3 there are at least 3 alternative ways how to do that:

i. Remove --> | [node) pls_expr ... in simple indents (Same as for 17.2)

ii. Edit

ignoreLineBreaksBeforeNode:

   !:breaksBeforeComma &    [node) ','

|  [node) ';'

| [node) pls_expr  &  [node-1) 'IF'

-- | [node) ')'

->

;

ignoreLineBreaksAfterNode:

   !:breaksAfterComma &    [node) ','

| [node) pls_expr  &  [node-1) 'IF'

->

;

How can you know that you are interested in pls_expr? Just paste the code fragment into the editor and see what is on the parse tree:

iii.

ignoreLineBreaksBeforeNode:

   !:breaksBeforeComma &    [node) ','

|  [node) ';'

| [node^) if_stmt  &  [node) 'THEN'

-- | [node) ')'

->

;

ignoreLineBreaksAfterNode:

   !:breaksAfterComma &    [node) ','

| [node^) if_stmt  &  [node) 'IF'

->

;

Please note that if you remove additional condition for the parent node being if_stmt, then it would remove breaks before THEN and after IF regardless of syntactic content.