node functions for .bashrc

node_functions.sh

# $ echo "console.log('hello world')" | runjs
runjs() {
  cat | xargs -0 node -e
}

# usage: 
# $ echo "hello world" | jsrx "/h\w+/g" "hi"
jsrx() {
  local str=$(cat | sed "s/\\\/\\\\\\\/g" \
    | sed "s/'/\\\'/g" | sed ':a;N;$!ba;s/\r\n\|\n/\\n/g')
  local pat="$1"
  local sub="$2"
  echo "process.stdout.write('${str}'.replace(${pat}, '${sub}') + '\n')" | runjs
}