read a n=${#a} l=`printf %0$[n/4]d` l=${l//?/"| ${a//?/ } | "} dd<<_ ${a//?/_}__ / ${a//?/ } \\ $l| $a | $l\\_${a//?/_}_/ _
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
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