>set collate causes string comparisons to be case insensitive.
>try:
>set collate to ""
>? "M" = "m" && returns .f.
>
>set collate to "GENERAL"
>? "M" = "m" && returns .t. !
>
>However, I have not found this behavior documented...
Indeed, while I have known about this behavior for quite a while, I didn't fint it in the help (VFP 6), neither under SET EXACT nor under SET COLLATE.
Note that you can use "==" for a case-sensitive comparison.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)