update

#!/usr/bin/bash
## if you encounter multi line substitution issues use perl, anything
## else like sed or awk or the like just gives you headache
__updateReadme() {
  ## filter out the escape codes for colored text from the output of the
  ## zet usage command and assign the resulting output to the commands variable
  local commands="$(zet usage | sed 's|\x1B\[[0-9;]*[mGK]||g')"
  ## Use perl to search for the string ~~~bash, followed by any number of
  ## characters (.*), followed by the string ~~~, and replace it with the
  ## strings ~~~bash, the value of the commands variable, and ~~~ separated
  ## by newlines (\n). The output is written to README.md with -i flag
  perl -i -0777pe "s/~~~bash.*~~~/~~~bash\n$commands\n~~~/s" "$PWD/README.md"
}
__updateTag() {
  ## store the latest git tag version                                                   
  local latestTag="$(git tag | sort -V | tail -n 1)"                            
  ## replace old version with new
  sed -i "s|local version=.*|local version=\""$latestTag"\"|" "$PWD/zet"
}
__updateReadme && __updateTag