x = 1:10
x
rec_num(x, rec = "1=10; 4=2")
rec_num(x, rec = "1:3=1; 4:6=2")
rec_num(x, rec = "1:3=1; 4:6=2",keep = FALSE)
y = letters[1:5]
y
rec_char(y,rec = "a=A;b=B")
rec_char(y,rec = "a,b=A;c,d=B")
rec_char(y,rec = "a,b=A;c,d=B",keep = FALSE)
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