RE: bind commands that change buffer contents to `undefined' whenread-only?

[Drew Adams]

> (defcustom buffer-modifying-cmds
>   '(delete-char quoted-insert transpose-chars kill-region yank kill-word
>                 indent-new-comment-line kill-sentence fill-paragraph
>                 transpose-words yank-pop zap-to-char just-one-space
>                 indent-for-comment delete-indentation kill-sexp split-line
>                 transpose-sexps backward-kill-sentence)
>   "*Buffer-modifying commands used in `undefine-killer-commands'."
>   :type '(repeat symbol))

That definition is pretty old and skimpy. FWIW, here are some more such
commands. Many of these are not bound to keys by default, but including them
wouldn't hurt.

(defcustom buffer-modifying-cmds
  '(align-newline-and-indent backward-delete-char
    backward-delete-char-untabify backward-kill-paragraph
    backward-kill-sentence backward-kill-sexp backward-kill-word
    bookmark-insert bookmark-insert-location canonically-space-region
    capitalize-region capitalize-word c-backslash-region
    c-context-line-break center-line center-paragraph center-region
    c-fill-paragraph c-hungry-delete-backwards
    c-hungry-delete-forward c-indent-command c-indent-defun
    c-indent-exp clear-rectangle clipboard-kill-region
    comint-kill-input comint-truncate-buffer comment-dwim
    comment-indent-new-line comment-kill comment-region
    comment-or-uncomment-region complete-symbol compose-last-chars
    compose-region dabbrev-completion dabbrev-expand decompose-region
    delete-backward-char delete-blank-lines delete-char
    delete-horizontal-space delete-indentation delete-matching-lines
    delete-non-matching-lines delete-pair delete-rectangle
    delete-region delete-trailing-whitespace
    delete-whitespace-rectangle delimit-columns-region
    downcase-region downcase-word edit-picture expand-abbrev
    expand-region-abbrevs fill-individual-paragraphs
    fill-nonuniform-paragraphs fill-paragraph fill-region
    fill-region-as-paragraph format-insert-file flush-lines
    ido-insert-buffer ido-insert-file increase-left-margin
    increase-right-margin indent-code-rigidly indent-for-comment
    indent-for-tab-command indent-line-function
    indent-new-comment-line indent-pp-sexp indent-region
    indent-rigidly insert-abbrevs insert-buffer insert-file
    insert-file-literally insert-kbd-macro insert-pair
    insert-parentheses insert-register insert-zippyism join-line
    justify-current-line just-one-space keep-lines
    kill-backward-up-list kill-comment kill-line kill-paragraph
    kill-rectangle kill-region kill-sentence kill-sexp
    kill-whole-line kill-word lisp-complete-symbol
    lisp-fill-paragraph lisp-indent-line morse-region mouse-kill
    mouse-yank-at-click mouse-yank-secondary newline
    newline-and-indent open-line open-rectangle query-replace
    query-replace-regexp quoted-insert
    reindent-then-newline-and-indent replace-regexp replace-string
    repunctuate-sentences reverse-region rot13-region
    self-insert-command set-justification-center
    set-justification-full set-justification-left
    set-justification-none set-justification-right set-left-margin
    set-right-margin skeleton-pair-insert-maybe smiley-region
    sort-columns sort-fields sort-lines sort-numeric-fields
    sort-pages sort-paragraphs split-line string-insert-rectangle
    string-rectangle studlify-region table-delete-column
    table-delete-row table-heighten-cell table-insert
    table-insert-column table-insert-row table-insert-sequence
    table-justify table-shorten-cell table-span-cell table-split-cell
    table-split-cell-horizontally table-split-cell-vertically
    table-widen-cell tab-to-tab-stop tabify texinfo-format-region
    tildify-region time-stamp todo-insert-item translate-region
    transpose-chars transpose-lines transpose-paragraphs
    transpose-sentences transpose-sexps transpose-words ucs-insert
    uncomment-region unmorse-region untabify upcase-region
    upcase-word vc-insert-headers whitespace-cleanup
    whitespace-cleanup-region yank yank-pop yank-rectangle
    zap-to-char)
  "*Buffer-modifying commands used in `undefine-killer-commands'."
  :type '(repeat symbol))