More features and examples

The parse dialect has a lot more useful features and functionalities. In this section, we discuss some more examples, so that you get a feeling for what is possible.

Using end

Remember our vowels example from The bitset! datatype section?

;-- see Chapter08/more-features.red:
vowel: charset "aeiou" 
str: "dog"
find str vowel   ;== "og"

Using parse we can write this as follows:

parse str [ to vowel to end]    ;== true
parse "xyz" [ to vowel to end]  ;== false

The end word, which exists only in the parse dialect, returns true when the current position pointer is at the end of the input.

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