do_all()
{
        #echo $1 $2
        re -cb -pl dot "$1" > $2.dot
        dot -Tpng $2.dot -o $2.png
        re -cb -pl c -k str "$1" > $2.c
        re -cb -pl json "$1" > $2.json
}

do_all "colou?r" "color"
do_all "M(r|rs)\." Mr_Mrs
do_all "(Net|Open|Free)BSD" BSD
do_all "(miss|missus|mistress)" miss
do_all "(s|S)t(even|ephen|eve|evie)" "steven"
do_all "(dark|light)?(red|green|blue)(ish)?" "color2"

do_all "(1|2|3|4|5|6|7|8|9|10|11|12)" "two_digit_number"
do_all "(01|02|03|04|05|06|07|08|09|1|2|3|4|5|6|7|8|9|10|11|12)" "two_digit_number_zero"
do_all "(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)" month
do_all "var1 +var2" "plus"
do_all "var1[ \t]+var2" "plus_tab"
do_all " *var1 *= *var2 *" "kleene"
do_all "[ \t]*var1[ \t]*=[ \t]*var2[ \t]*" "kleene_tab"
do_all "[ \t]*[a-z]+[ \t]*=[ \t]*[0-9]+[ \t]*" "config"

do_all "(0|(1(01*0)*1))*" "divisible_by_3"

do_all "(1|2|3|4|5|6|7|8|9|01|02|03|04|05|06|07|08|09|10|11|12):[0-5][0-9]:[0-5][0-9] (A|P)M" "AM_PM_time"
do_all "(01|02|03|04|05|06|07|08|09|10|11|12):[0-5][0-9]:[0-5][0-9] (A|P)M" "AM_PM_time_2_digits"

do_all "(1|2|3|4|5|6|7|8|9|10|11|12|13|14|15|16|17|18|19|20|21|22|23|24|25|26|27|28|29|30|31)" "1_31"

do_all "[0123][0-9]-(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)-(19|20)[0-9]{2}" date0

do_all "[0123][0-9]-?(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)-?(19|20)[0-9]{2}" date1

# nested!

do_all "([0123][0-9]-(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)-(19|20)[0-9]{2}|(19|20)[0-9]{2}-(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)-[0123][0-9])" date2

do_all "([0123][0-9]-?(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)-?(19|20)[0-9]{2}|(19|20)[0-9]{2}-?(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)-?[0123][0-9])" date3

do_all "([az]+ *,)+[az]+ *" CSV