A modern author who wishes to indicate special emphasis to each item in a list uses bullets to indicate this emphasis. By bulleting the reader is asked to dwell for a moment on each list item and listen to its nuances. In my article Biblical Formatting to appear in the Jewish Bible Quarterly I have explained that when the Biblical Author wishes to indicate special emphasis on each member of a list, repeated keywords are used. The repeated keywords should be interpreted as the equivalent of a bulleted format. The following example illustrates this.

Verse Gn27-25a, discussing the request by Isaac, of his son Esauv, to bring prepared food to him, so that he may bless him, states And Rebekah heard when Isaac spoke to Esau his son. And Esau went to the field
• to hunt a hunt, and
• to bring it.
The repeated underlined keyword to creates a bullet like effect as shown in the above formatting. The bullet like effect creates a special emphasis on each item in the bulleted list---hunt,bring. Rashi will now explain the specifics of the special emphasis.

Rashi explains that Isaac wanted Esauv to hunt for food and then he would give Esauv a blessing. Esauv went out to hunt. But even an experienced hunter like Esauv sometimes returns empty handed. Esauv wanted his father's blessings---if he couldn't find a hunt he would bring the food, by buying or stealing. Hence Rashi explains the bulleted list, hunt,bring as referring to hunting, buying-stealing. In making this explanation Rashi is not commenting on the extra words hunt,bring but rather Rashi is commenting on the bulleted list which contains a contrastive emphasis: hunt, buy-steal .

Advanced Rashi: Rashi's literal comment is ...By hunt and if not by bringing in by theft. We however have explained above more broadly that Bring means buy-steal. Our explanation is based soley on the bulleted structure---the complement of hunt is buying-stealing.

However Rashi was commenting from two sources: The bullet source emphasizes something other than hunting which could refer to buying-stealing. However a knowledge of Esauv's personality as indicated in Gn25-27 a skilful hunter, a man of the field suggests that Esauv preferred a good battle--theft--to a tranquil commercial act. In other words Rashi's comments emanate from two sources: the bullets and Esauv's personality.

The above analysis seems to me the proper way to approach this Rashi. We first see Rashi as commenting on the bullets which indicates hunting,buying,stealing. We then see Rashi as commenting on Esauv's personality: the man of hunting and fields.

Sermonic points: Rashi illustrates for us the classical religious hypocrisy: Blessings were important for Esauv; but he didn't mind stealing to obtain them. Such bifurcated hypocritical values---pursue the religious but ignore the ethical, happen from time to time in all religious communities. It is important for people making requests, such as Isaac, to properly word them so that at least the preference for ethical behavior is indicated.