\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}
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