- (insert "Face: " (symbol-name f))
- (if (not (facep f))
- (insert " undefined face.\n")
- (let ((customize-label "customize this face")
- file-name)
- (insert (concat " (" (propertize "sample" 'font-lock-face f) ")"))
- (princ (concat " (" customize-label ")\n"))
- (insert "Documentation: "
- (or (face-documentation f)
- "Not documented as a face.")
- "\n")
- (with-current-buffer standard-output
- (save-excursion
- (re-search-backward
- (concat "\\(" customize-label "\\)") nil t)
- (help-xref-button 1 'help-customize-face f)))
- (setq file-name (find-lisp-object-file-name f 'defface))
- (when file-name
- (princ "Defined in `")
- (princ (file-name-nondirectory file-name))
- (princ "'")
- ;; Make a hyperlink to the library.
- (save-excursion
- (re-search-backward "`\\([^`']+\\)'" nil t)
- (help-xref-button 1 'help-face-def f file-name))
- (princ ".")
- (terpri)
- (terpri))
- (dolist (a attrs)
- (let ((attr (face-attribute f (car a) frame)))
- (insert (make-string (- max-width (length (cdr a))) ?\s)
- (cdr a) ": " (format "%s" attr))
- (if (and (eq (car a) :inherit)
- (not (eq attr 'unspecified)))
- ;; Make a hyperlink to the parent face.
- (save-excursion
- (re-search-backward ": \\([^:]+\\)" nil t)
- (help-xref-button 1 'help-face attr)))
- (insert "\n")))))
- (terpri))))))
+ ;; We may get called for anonymous faces (i.e., faces
+ ;; expressed using prop-value plists). Those can't be
+ ;; usefully customized, so ignore them.
+ (when (symbolp f)
+ (insert "Face: " (symbol-name f))
+ (if (not (facep f))
+ (insert " undefined face.\n")
+ (let ((customize-label "customize this face")
+ file-name)
+ (insert (concat " (" (propertize "sample" 'font-lock-face f) ")"))
+ (princ (concat " (" customize-label ")\n"))
+ ;; FIXME not sure how much of this belongs here, and
+ ;; how much in `face-documentation'. The latter is
+ ;; not used much, but needs to return nil for
+ ;; undocumented faces.
+ (let ((alias (get f 'face-alias))
+ (face f)
+ obsolete)
+ (when alias
+ (setq face alias)
+ (insert
+ (format "\n %s is an alias for the face `%s'.\n%s"
+ f alias
+ (if (setq obsolete (get f 'obsolete-face))
+ (format " This face is obsolete%s; use `%s' instead.\n"
+ (if (stringp obsolete)
+ (format " since %s" obsolete)
+ "")
+ alias)
+ ""))))
+ (insert "\nDocumentation:\n"
+ (or (face-documentation face)
+ "Not documented as a face.")
+ "\n\n"))
+ (with-current-buffer standard-output
+ (save-excursion
+ (re-search-backward
+ (concat "\\(" customize-label "\\)") nil t)
+ (help-xref-button 1 'help-customize-face f)))
+ (setq file-name (find-lisp-object-file-name f 'defface))
+ (when file-name
+ (princ "Defined in `")
+ (princ (file-name-nondirectory file-name))
+ (princ "'")
+ ;; Make a hyperlink to the library.
+ (save-excursion
+ (re-search-backward "`\\([^`']+\\)'" nil t)
+ (help-xref-button 1 'help-face-def f file-name))
+ (princ ".")
+ (terpri)
+ (terpri))
+ (dolist (a attrs)
+ (let ((attr (face-attribute f (car a) frame)))
+ (insert (make-string (- max-width (length (cdr a))) ?\s)
+ (cdr a) ": " (format "%s" attr))
+ (if (and (eq (car a) :inherit)
+ (not (eq attr 'unspecified)))
+ ;; Make a hyperlink to the parent face.
+ (save-excursion
+ (re-search-backward ": \\([^:]+\\)" nil t)
+ (help-xref-button 1 'help-face attr)))
+ (insert "\n")))))
+ (terpri)))))))