String filter for YAML array? - arrays

Question

Is there a way in Jekyll to add a string filter for {{ data[1] }} in this YAML hash, so that the comma after "amet" doesn't break the array?
- project:
-
name: Name
main:
- image: image.png, Lorem ipsum dolor sit amet, consectetur adipiscing elit., category, Main Category, placeholdertext
Edit: #marcanuy asked how data[1] is defined. It's the index location in a for loop, and I'm using it for an alt tag: alt="{{ data[1] | strip }}", so:
{% for main in project.main %}
{% assign main = site.data.catalog[0].project[0].main[0] %}
{% assign data = main.image|split:"," %}

Answer 1

Maybe you can simplify you catalog file structure.
_data/catalog.yml
Contains all projets in an array :
-
name: Name1
main:
image:
url: image1.png
alt: 1Lorem ipsum dolor sit amet, consectetur adipiscing elit.
category: 1Main Category
placeholderText: 1placeholdertext
-
name: Name2
main:
image:
url: image2.png
alt: 2Lorem ipsum dolor sit amet, consectetur adipiscing elit.
category: 2Main Category
placeholderText: 2placeholdertext
Now, you can get stuff with :
{% for project in site.data.catalog %}
{% assign mainImg = project.main.image %}
<img src="{{ site.base }}{{ maybe.img.path.from.config }}{{ mainImg.url }}" alt="{{ mainImg.alt }}">
{% endfor %}

Answer 2

Someone answers: create a new array with the first item removed (the name of the image) and the join the rest of the elements with a comma to restore the original text:
Image name: {{ data |first | strip }}
{% assign text = data | shift %}
Image text: {{ text | join: "," }}
Output:
Image name: image.png
Image text: Lorem ipsum dolor sit amet, consectetur adipiscing elit., category, Main Category, placeholdertext