#!/bin/sh
cd $(dirname "$0")

TMP=$(mktemp -d) ||Die 1
echo >&2 " tmp $TMP"
Die() {
 e=$?
 trap - EXIT
 rm -rf $TMP
 exit ${1:-$e}
}; trap Die HUP EXIT #INT

pause() {(
 echo >&2 -n "Continue? ..."
 read -sn1 REPLY
 echo >&2
)}

txt=$(cat <<%EOF
ABC
...
...
..;

...
...
..;
DEF
123
dgjkasdgdsa
jglksadgas
asldkfjsaldkfjas
asdljkgjsad
dgjkasdgdsa
jglksadgas
asldkfjsaldkfjas
asdljkgjsad
dgjkasdgdsa
jglksadgas
asldkfjsaldkfjas
asdljkgjsad
asdfjlasdg
dgjlk
%EOF
)

cc -o $TMP/exe spine.c
cd $TMP ||Die 1

cat <<%EOF |sh
set -v
./exe search ...   ;rmdir search
./exe search aA... ;rmdir search
./exe search a.
./exe search       ;rmdir search
%EOF
{
echo
echo "cat %EOF% |./exe search 1010 414243.4445460a"
echo "$txt" |./exe search 414243.4445460a 1010 ||Die

printf '%s (contents)\n' search/found
cat "$_"
printf '%s (contents)\n' search/0000000000000000
cat "$_"
echo

echo "echo 'ABCD' |./exe enddot 4142."
echo 'ABCD' |./exe enddot 4142. ||Die
printf '%s (contents)\n' enddot/0000000000000000
cat "$_"
echo
echo
echo "created:"
find . -mindepth 1 -printf '%p\n'
echo
 "cleanup? "
}>&2

read -n1
Die