(first) proof of concept.

Build and test the code like this:
./sampler '(^emc[[:space:]]+)([0-9]+)([[:space:]]+.*)' 2

Program waits for input from stdin. Give the following:
emc    480000 1200mV
^D

Code will return 480000. This shows that advanced filtering of data can
effectivly be made in C without hardcoding. I.e. project is feasable.

Category: development
Embryonic start of sampler configurator tool

Starting in the middle. Helps to architect the inner picture.

added:
   line-edit.sh
   line-edit-help.txt

Category: development