@chapter Major Entry Points
When Ediff starts up, it displays a small control window, which accepts the
-Ediff commands and two or three windows displaying the files to be compared
+Ediff commands, and two or three windows displaying the files to be compared
or merged. The control window can be in its own small frame or it can be
part of a bigger frame that displays other buffers. In any case, it is
important that the control window be active (i.e., be the one receiving the
instance, if Ediff is merging according to the `combined' policy, then the
merge region is skipped over if it is different from the combination of the
regions in buffers A and B. (Warning: swapping buffers A and B will confuse
-things in this respect). If the merge region is marked as `prefer-A' then
+things in this respect.) If the merge region is marked as `prefer-A' then
this region will be skipped if it differs from the current difference
region in buffer A, etc.
@vindex ediff-ignore-case
Finally, Ediff can be told to ignore the case of the letters. This behavior
can be toggled with @kbd{#c} and it is controlled with three variables:
-Toggle case sensitivity in the diff program. All diffs are recomputed.
-Case sensitivity is controlled by the variables
@code{ediff-ignore-case-option}, @code{ediff-ignore-case-option3}, and
@code{ediff-ignore-case}.