Boolean Variables by Daniel Stelzer begins here. A boolean option is a kind of thing. A boolean option can be active or inactive. A boolean option is usually inactive. Boolean toggling is an action out of world applying to one visible thing. Understand "[any boolean option]" as boolean toggling. Carry out boolean toggling: if the noun is active, now the noun is inactive; otherwise now the noun is active. Report boolean toggling: say "[Noun in sentence case][if the noun is active]on[otherwise]off[end if]." Boolean truth setting is an action out of world applying to one visible thing. Understand "[any boolean option] on" as boolean truth setting. Carry out boolean truth setting: now the noun is active. Report boolean truth setting: say "[Noun in sentence case] on." Boolean falsehood setting is an action out of world applying to one visible thing. Understand "[any boolean option] off" as boolean falsehood setting. Carry out boolean falsehood setting: now the noun is inactive. Report boolean falsehood setting: say "[Noun in sentence case] off." Listing boolean options is an action out of world applying to nothing. Understand "options" as listing boolean options. Carry out listing boolean options: say fixed letter spacing; repeat with the item running through boolean options: say "[if the item is active]*[otherwise][end if][Item in sentence case][line break]"; say variable letter spacing. To say (X - boolean option) in sentence case: say "[X]" in sentence case. Rule for deciding whether all includes a boolean option: it does not. [Don't allow ALL to toggle all variables.]
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