#!/bin/sh

## module for getting estimated time to read an article
## usage:
##    readingtime [file]
## exports:
##    READING_TIME in minutes

## config vars
wordsPerMinute=200

# first clean special symbols and lines with whitespace
wordcount=`sed -e 's/[^A-Za-z0-9 ]//g' -e '/^\s*$/d' "$1" | wc -w`
export READING_TIME=$(expr $(expr $wordcount / $wordsPerMinute) + 1)