I want to append attribute to a file, instead of replacing or setting it on a new line.

Content of file:

```
PATH = "/a/path"

```

The variable which attributes has to append in the file: 

```
"{{ key.values() | map(attribute='hi') | list | join(' ') }}"

```

The output of the variable is:

```
/hi1 /hi2 /hi3 

```

Trying to append with `lineinfile`, but the parameter `insertafter` places the attributes on a new line, instead of the same line.

```
- lineinfile:
    dest: /file
    state: present
    insertafter: 'PATH = "'
    line: "{{ mounts.values() | map(attribute='mountpoint') | list | join(' ') }}"

```

Expected result:

```
PATH = "/a/path /hi1 /h2 /hi3"

```

Actual result:

```
PATH = "/a/path"
/hi1 /hi2 /hi3

```

Receiving syntax errors if I use the method described here: [Ansible: insert a single word on an existing line in a file](https://stackoverflow.com/questions/31432367/ansible-insert-a-single-word-on-an-existing-line-in-a-file) 

Which module should I use for this particular use case?

Using Ansible v2.1.2.0

---

edit
----

The backrefs option gives the same result, which is not expected:

```
 - lineinfile:
     dest: /file
     backrefs: yes
     regexp: 'PATH = "'
     line: "{{ key.values() | map(attribute='hi') | list | join(' ') }}"

```