Feature request #2077: user the <Space> as pipe filter operator

Is it possible use the <Space> like the pipe filters of unix?

• Say we have list of following source files:

app/models/attachment_category.rb
app/models/attachment_pointer.rb
app/models/au_ghs.rb
app/models/danger_class.rb
app/models/ghs.rb
app/models/global_ingredient.rb
app/models/group_permission.rb
spec/models/attachment_category.rb
spec/models/attachment_pointer.rb
spec/models/au_ghs.rb
spec/models/danger_class.rb
spec/models/ghs.rb
spec/models/global_ingredient.rb
spec/models/group_permission.rb

• when typing attach, it shows:

app/models/attachment_category.rb
app/models/attachment_pointer.rb
spec/models/attachment_category_spec.rb
spec/models/attachment_pointer_spec.rb

• then add a space, and continues pipe filter attach app, it shows:

app/models/attachment_category.rb
app/models/attachment_pointer.rb

• and continues attach app poi, it shows:

app/models/attachment_pointer.rb

so the querying string doesn't have to be in same order as the filenames.

see https://github.com/nfd/filepirate, it kind of works, but lack features and not always stable