[css-syntax] "5.1 Parser Railroad Diagrams"

[tabatkins]

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Raffaello Giulietti said:

In section "5.1 Parser Railroad Diagrams", railroads diagrams are
compared to (presumably finite) state-machines and regular expressions.
This is misleading: neither regular expressions nor finite
state-machines have the same expressive power as the railroad diagrams
used in section 5.1 (regular versus context-free languages).

Drop the comparision in section 5.1.

Note, though, that the analogous description in section "4.1 Token
Railroad Diagrams" is correct in that particular situation (although not
valid in general).

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Simon Sapin said:

Fixed, thanks!

I thought of rephrasing the comparison to make it correct, but it didn’t
bring much anyway so I dropped it as you suggested.