Filter pages by filename contains?

Is there a way to filter pages by partial filename?

For example:

/content/new-page.md
/content/old-page.md
/content/new-page2.md

How would I get all the pages that have ‘new’ in the filename?

I solved it this way:

{{ range where $.Site.RegularPages "Section" $sectionName }}
    {{ if ( findRE $params.find .File 1 ) }}
      {{ .File }}
    {{ end }}
  {{ end }}