\tr{{from}{abcd-g}{delete}{hij}{to}{1234-7}}{abcdefghijlmn}
\tr{{from}{d-gI}{to}{4-7i}{delete}{hij}}{map D-G and remove HIJ altogether, is what I say}
\tr{{delete}{hij}}{defghijklm}
\tr{{squash}{^}{from}{^a-zA-Z.}{to}{[* *]}}{ *!* abolish *!* capital *!*  punishment}
\tr{{from}{[:lower:]}{to}{[:upper:]}}{\tr{{squash}{^}{from}{^a-zA-Z.}{to}{[* *]}}{ *!* abolish *!* capital *!*  punishment}}
\tr{{from}{^a-zA-Z.}{to}{[*_*]}}{  complement  with  neither  squash  nor  delete  }
\tr{{squash}{[:alpha:]}}{squash the bookkeeper}
\tr{{squash}{[:alpha:]}}{squash the bookkeeper}
