What's the fastest/most efficient way to count lines in Rebol?

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星月不相逢
星月不相逢 2021-01-02 07:33

Given a string string, what is the fastest/most-efficient way to count lines therein? Will accept best answers for any flavour of Rebol. I\'ve been working unde

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  •  不知归路
    2021-01-02 08:08

    hehehe the read/lines length? temp is a great thing I though about read/lines -> foreach lines temps [ count: count + 1]

    another way to do it would be to do

    temp: "line 1 ^M line2 ^M  line3 ^M "
    length? parse temp newline ; that cuts the strings into a block 
    ;of multiple strings that represent each a line [ "line 1" "line2" "line3" ] 
    :then you count how much  strings you have in the block with length? 
    

    I like to code in rebol it is so funny

    Edit I didnt read the whole post so my solution already waas proposed in a different way...

    ok to amend for my sin of posting a already posted solution I will bring insight comment of a unexpected behavior of that solution. Multiple chained carriage returns are not counted (using rebol3 linux ...)

    >> a: "line1 ^M line2 ^M line3 ^M^M"
    == "line1 ^M line2 ^M line3 ^M^M"
    
    >> length? parse a newline 
    == 3
    

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