The first while loop reads in the data to be matched. The second while loop goes through all the matches (if the g modifier is added).
in reply to Re^2: "While" effect on regex?
in thread "While" effect on regex?
A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James
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