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String#split and regex lookarounds

Ruby supports regular expression quite well, so it’s not surprising that one can use a lookaround to match a specific position. That also works really well with String#split, so if one needs to extract the key/value out of a string such as this:

s = “TYPE=Exterior RED=119 GREEN=105 BLUE=88 TABLEREQ=PNTTBL-01 TABLE=Primary w/XL GENERICCLR=Beige GENERICCLRCODE=31”

this will do nicely:

s.split(/s(?=[A-Z]*=)/)

Just splitting on “space” won’t work because there are spaces inside the values, too (”Primary w/XML”).

Simple and useful…

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