Why Substring matching?

[heddendorp]

The * column gridclasses use substring matching to determine the coulmn width: *= "five column"
I'd prefer to have fiv.column.gridfor that, because substring matching as is defines the position. When using frameworks like angular the new class always is the last -> ui column grid fivewhich is a problem atm, but the class selectors would work anyways.
Why is substring matching used and would it be possible to change that?

[jlukic]

See word order dependency #396