- (while (search-forward "\e[1m" nil t)
- (delete-backward-char 4)
- (put-text-property (point)
- (progn (if (search-forward "\e[0m" nil 'move)
- (delete-backward-char 4))
- (point))
- 'face Man-overstrike-face))
- (if (< (buffer-size) (position-bytes (point-max)))
- ;; Multibyte characters exist.
- (progn
- (goto-char (point-min))
- (while (search-forward "__\b\b" nil t)
- (backward-delete-char 4)
- (put-text-property (point) (1+ (point)) 'face Man-underline-face))
- (goto-char (point-min))
- (while (search-forward "\b\b__" nil t)
- (backward-delete-char 4)
- (put-text-property (1- (point)) (point) 'face Man-underline-face))))
- (goto-char (point-min))
- (while (search-forward "_\b" nil t)
- (backward-delete-char 2)
- (put-text-property (point) (1+ (point)) 'face Man-underline-face))
- (goto-char (point-min))
- (while (search-forward "\b_" nil t)
- (backward-delete-char 2)
- (put-text-property (1- (point)) (point) 'face Man-underline-face))
- (goto-char (point-min))
- (while (re-search-forward "\\(.\\)\\(\b+\\1\\)+" nil t)
- (replace-match "\\1")
- (put-text-property (1- (point)) (point) 'face Man-overstrike-face))
- (goto-char (point-min))
- (while (re-search-forward "o\b\\+\\|\\+\bo" nil t)
- (replace-match "o")
- (put-text-property (1- (point)) (point) 'face 'bold))
- (goto-char (point-min))
- (while (re-search-forward "[-|]\\(\b[-|]\\)+" nil t)
- (replace-match "+")
- (put-text-property (1- (point)) (point) 'face 'bold))
- (goto-char (point-min))
- ;; Try to recognize common forms of cross references.
- (while (re-search-forward "\\w+([0-9].?)" nil t)
- (put-text-property (match-beginning 0) (match-end 0)
- 'mouse-face 'highlight))
- (Man-softhyphen-to-minus)
- (message "%s man page made up" Man-arguments))
-
-(defun Man-cleanup-manpage ()
- "Remove overstriking and underlining from the current buffer."
- (interactive)
+ ;; Fontify ANSI escapes.
+ (let ((faces nil)
+ (buffer-undo-list t)
+ (start (point)))
+ ;; http://www.isthe.com/chongo/tech/comp/ansi_escapes.html
+ ;; suggests many codes, but we only handle:
+ ;; ESC [ 00 m reset to normal display
+ ;; ESC [ 01 m bold
+ ;; ESC [ 04 m underline
+ ;; ESC [ 07 m reverse-video
+ ;; ESC [ 22 m no-bold
+ ;; ESC [ 24 m no-underline
+ ;; ESC [ 27 m no-reverse-video
+ (while (re-search-forward "\e\\[0?\\([1470]\\|2\\([247]\\)\\)m" nil t)
+ (if faces (put-text-property start (match-beginning 0) 'face
+ (if (cdr faces) faces (car faces))))
+ (setq faces
+ (cond
+ ((match-beginning 2)
+ (delq (case (char-after (match-beginning 2))
+ (?2 Man-overstrike-face)
+ (?4 Man-underline-face)
+ (?7 Man-reverse-face))
+ faces))
+ ((eq (char-after (match-beginning 1)) ?0) nil)
+ (t
+ (cons (case (char-after (match-beginning 1))
+ (?1 Man-overstrike-face)
+ (?4 Man-underline-face)
+ (?7 Man-reverse-face))
+ faces))))
+ (delete-region (match-beginning 0) (match-end 0))
+ (setq start (point))))
+ ;; Other highlighting.
+ (let ((buffer-undo-list t))
+ (if (< (buffer-size) (position-bytes (point-max)))
+ ;; Multibyte characters exist.
+ (progn
+ (goto-char (point-min))
+ (while (search-forward "__\b\b" nil t)
+ (backward-delete-char 4)
+ (put-text-property (point) (1+ (point)) 'face Man-underline-face))
+ (goto-char (point-min))
+ (while (search-forward "\b\b__" nil t)
+ (backward-delete-char 4)
+ (put-text-property (1- (point)) (point) 'face Man-underline-face))))
+ (goto-char (point-min))
+ (while (search-forward "_\b" nil t)
+ (backward-delete-char 2)
+ (put-text-property (point) (1+ (point)) 'face Man-underline-face))
+ (goto-char (point-min))
+ (while (search-forward "\b_" nil t)
+ (backward-delete-char 2)
+ (put-text-property (1- (point)) (point) 'face Man-underline-face))
+ (goto-char (point-min))
+ (while (re-search-forward "\\(.\\)\\(\b+\\1\\)+" nil t)
+ (replace-match "\\1")
+ (put-text-property (1- (point)) (point) 'face Man-overstrike-face))
+ (goto-char (point-min))
+ (while (re-search-forward "o\b\\+\\|\\+\bo" nil t)
+ (replace-match "o")
+ (put-text-property (1- (point)) (point) 'face 'bold))
+ (goto-char (point-min))
+ (while (re-search-forward "[-|]\\(\b[-|]\\)+" nil t)
+ (replace-match "+")
+ (put-text-property (1- (point)) (point) 'face 'bold))
+ (goto-char (point-min))
+ ;; Try to recognize common forms of cross references.
+ (Man-highlight-references)
+ (Man-softhyphen-to-minus)
+ (goto-char (point-min))
+ (while (re-search-forward Man-heading-regexp nil t)
+ (put-text-property (match-beginning 0)
+ (match-end 0)
+ 'face Man-overstrike-face)))
+ (message "%s man page formatted" Man-arguments))
+
+(defun Man-highlight-references ()
+ "Highlight the references on mouse-over.
+references include items in the SEE ALSO section,
+header file(#include <foo.h>) and files in FILES"
+ (let ((dummy 0))
+ (Man-highlight-references0
+ Man-see-also-regexp Man-reference-regexp 1 dummy
+ 'Man-xref-man-page)
+ (Man-highlight-references0
+ Man-synopsis-regexp Man-header-regexp 0 2
+ 'Man-xref-header-file)
+ (Man-highlight-references0
+ Man-files-regexp Man-normal-file-regexp 0 0
+ 'Man-xref-normal-file)))
+
+(defun Man-highlight-references0 (start-section regexp button-pos target-pos type)
+ ;; Based on `Man-build-references-alist'
+ (when (Man-find-section start-section)
+ (forward-line 1)
+ (let ((end (save-excursion
+ (Man-next-section 1)
+ (point))))
+ (back-to-indentation)
+ (while (re-search-forward regexp end t)
+ (make-text-button
+ (match-beginning button-pos)
+ (match-end button-pos)
+ 'type type
+ 'Man-target-string (match-string target-pos)
+ )))))
+
+(defun Man-cleanup-manpage (&optional interactive)
+ "Remove overstriking and underlining from the current buffer.
+Normally skip any jobs that should have been done by the sed script,
+but when called interactively, do those jobs even if the sed
+script would have done them."
+ (interactive "p")