Duplicate BASH script to POSIX shell.

[WhyIsEvery4thYearAlwaysBad]

bash is not a portable shell, unlike sh, so it'd be nice if the script could run on just the bourne shell.

[mrbaseman]

well, if I'm not mistaken, it's really not much to change as most of the code is sed and awk. Just replace

function parse_yaml {
   local prefix=$2
   local separator=${3:-_}
   local s='[[:space:]]*' w='[a-zA-Z0-9_]*' fs=${fs:-$(echo @|tr @ '\034')} i=${i:-  }

by

parse_yaml () {
prefix=$2
separator=${3:-_}
s='[[:space:]]*' w='[a-zA-Z0-9_]*' fs=${fs:-$(echo @|tr @ '\034')} i=${i:-  }

i.e. drop the keywords function and local. Could you give it a try?