read-only « -1

The value of this constant is returned by the file-exists function to indicate that the target file is readable.

read-only-buffer« 0

Controls whether or not a buffer can be modified. When read-only-buffer is set to true, all attempts to modify the buffer will be ignored and will result in an error.

read-write « 1

The value of this constant is returned by the file-exists function to indicate that the target file can be read and written.

remove-help-window « 1

Controls the removal of the help window. When non-zero, help windows that have been automatically popped up onto the screen are removed. Otherwise, the help window will stay on the screen after the help function has completed.

replace-case « 0

Controls the case of replacement text. If non-zero, Emacs will alter the case of strings substituted with replace-string or query-replace-string to match the case of the original string.

replace-mode « 0

Controls the Replace minor mode. If non-zero, characters inserted into the buffer replace existing characters, rather then inserting (the default). This can be useful when editing diagrams.

restored-environment « 0

This read-only variable is a count of the number of times that the current environment has been saved and restored. If Emacs has not been restored from a saved environment file, restored-environment is zero.

return-to-emacs-hook «

Contains the name of an Emacs function which will be called when Emacs returns from DCL after a pause-emacs or return-to-monitor command. You can assign the name of any existing function to the variable.

right-margin

Controls the right margin setting for automatic text justification. If a character is inserted at the end of a line to the right of right-margin, Emacs will automatically insert at the beginning of the preceding word a newline, tabs and spaces to indent to the left margin, and the prefix string. For example, with right-margin set to 72, you can type in a document without worrying about when to hit the Return key; Emacs will automatically do this for you at exactly the right place.