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kevinwright/minevaluator.sh

Created May 1, 2014 20:36
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minified evaluator
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minevaluator.sh
#!/bin/bash
set -f
SUBBED=($(sed -e "s,multiply,*,g" -e "s,divide,/,g" -e "s,add,+,g" -e "s,subtract,-,g" -e "s,apply,,g" -e "s, *,,g" $1))
EXPR=""
for (( idx=${#SUBBED[@]}-1 ; idx>=0 ; idx-- )) ; do EXPR="($EXPR ${SUBBED[idx]})"; done
echo $(($EXPR))
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