Here is my text file\n
I want to save a bunch of\n
charcaters before the keywords\n
for example the keywords might be\n
the phrase: these are my keywords\n
I want to save a bunch of characters\n
after the keywords too so I have\n
context\n
\n
The keywords may appear multiple\n
times in any given file and may\n
span across lines like so: these are\n
my keywords.  This is one reason\n
I was using slurp instead of reading\n
in line by line