Section E - Matching
To decide whether (txt - text) matches (top - topic): [This is a horrible, horrible hack by Vaporware. You can only compare topics to snippets, so this snippetifies indexed text to make a comparison.]
let tmp be the player's command;
change the text of the player's command to txt;
let result be whether or not the player's command matches top;
change the text of the player's command to tmp;
decide on result.