#!/bin/bash                                                                               

cat spring2011-20101105.html | egrep '^(<TH CLASS="ddtitle"|<TD CLASS="dddefault">.*</TD>$|Credits)' \
| sed 's/^.*crn_in=[0-9]\{5\}">\(.*\) - \([0-9]\{5\}\) - \([A-Z]\{3,4\} [0-9]\{4\}\) - \([0-9]\{3\}\)<\/A.*$/\2:\3-\4:\1/g' \
| sed 's/^<TD.*ault">\(.*\)<\/TD>$/\1/g' | sed 's/(<ABB.*$//g' | sed 's/^.*TBA.*$/TBA/g' \
| sed 's/^&nbsp;$/NA/g' | sed 's/^ *//g' > output

mkdir -p courses

count=0
start=1
for item in `cat -n output | sed 's/^ *//g' | sed 's/\t/,/' | sed 's/ /*/g' \
| grep '^[0-9][0-9]*,[0-9][0-9][0-9][0-9][0-9]'`; do

    if [ "$count" -eq 0 ]; then
        count=1
        olditem="$item"
        continue
    fi
    
    end="`echo $item | cut -d',' -f1`"
    crn="`echo $olditem | cut -d',' -f2 | cut -d':' -f1`"
    let end=$end-1
#   echo "start: $start"
#   echo "end: $end"
    let start=$start+1
    let range=$end-$start
    let range=$range+1
#   echo "range: $range"
    start=$end
    olditem="$item"
    cat output | head -n $end | tail -n $range > courses/$crn
done

exit 0