;;; sgml-mode.el --- SGML- and HTML-editing modes
-;; Copyright (C) 1992,95,96,98,2001,2002 Free Software Foundation, Inc.
+;; Copyright (C) 1992,95,96,98,2001,2002, 2003 Free Software Foundation, Inc.
;; Author: James Clark <jjc@jclark.com>
;; Maintainer: FSF
(define-key map "\"" 'sgml-name-self))
(when (memq ?' sgml-specials)
(define-key map "'" 'sgml-name-self)))
- (define-key map (vector (make-char 'latin-iso8859-1))
- 'sgml-maybe-name-self)
(let ((c 127)
(map (nth 1 map)))
(while (< (setq c (1+ c)) 256)
(let ((table (make-char-table 'sgml-table))
(i 32)
elt)
- (while (< i 256)
+ (while (< i 128)
(setq elt (aref sgml-char-names i))
(if elt (aset table (make-char 'latin-iso8859-1 i) elt))
(setq i (1+ i)))
:type '(choice (const nil) integer)
:group 'sgml)
+(defconst sgml-namespace-re "[_[:alpha:]][-_.[:alnum:]]*")
(defconst sgml-name-re "[_:[:alpha:]][-_.:[:alnum:]]*")
(defconst sgml-tag-name-re (concat "<\\([!/?]?" sgml-name-re "\\)"))
(defconst sgml-attrs-re "\\(?:[^\"'/><]\\|\"[^\"]*\"\\|'[^']*'\\)*")
"Regular expression that matches a non-empty start tag.
Any terminating `>' or `/' is not matched.")
+(defface sgml-namespace-face
+ '((t (:inherit font-lock-builtin-face)))
+ "`sgml-mode' face used to highlight the namespace part of identifiers.")
+(defvar sgml-namespace-face 'sgml-namespace-face)
;; internal
(defconst sgml-font-lock-keywords-1
`((,(concat "<\\([!?]" sgml-name-re "\\)") 1 font-lock-keyword-face)
- (,(concat "<\\(/?" sgml-name-re"\\)") 1 font-lock-function-name-face)
+ ;; We could use the simpler "\\(" sgml-namespace-re ":\\)?" instead,
+ ;; but it would cause a bit more backtracking in the re-matcher.
+ (,(concat "</?\\(" sgml-namespace-re "\\)\\(?::\\(" sgml-name-re "\\)\\)?")
+ (1 (if (match-end 2) sgml-namespace-face font-lock-function-name-face))
+ (2 font-lock-function-name-face nil t))
;; FIXME: this doesn't cover the variables using a default value.
- (,(concat "\\(" sgml-name-re "\\)=[\"']") 1 font-lock-variable-name-face)
+ (,(concat "\\(" sgml-namespace-re "\\)\\(?::\\("
+ sgml-name-re "\\)\\)?=[\"']")
+ (1 (if (match-end 2) sgml-namespace-face font-lock-variable-name-face))
+ (2 font-lock-variable-name-face nil t))
(,(concat "[&%]" sgml-name-re ";?") . font-lock-variable-name-face)))
(defconst sgml-font-lock-keywords-2
(regexp-opt (mapcar 'car sgml-tag-face-alist) t)
"\\([ \t][^>]*\\)?>\\([^<]+\\)</\\1>")
'(3 (cdr (assoc (downcase (match-string 1))
- sgml-tag-face-alist))))))))
+ sgml-tag-face-alist)) prepend))))))
;; for font-lock, but must be defvar'ed after
;; sgml-font-lock-keywords-1 and sgml-font-lock-keywords-2 above
(looking-at "\\s-*<\\?xml")
(when (re-search-forward
(eval-when-compile
- (mapconcat 'identity
- '("<!DOCTYPE" "\\(\\w+\\)" "\\(\\w+\\)"
+ (mapconcat 'identity
+ '("<!DOCTYPE" "\\(\\w+\\)" "\\(\\w+\\)"
"\"\\([^\"]+\\)\"" "\"\\([^\"]+\\)\"")
"\\s-+"))
nil t)
(concat "<!\\(element\\|entity\\)[ \t\n]+%?[ \t\n]*\\("
sgml-name-re "\\)")))
+;; Some programs (such as Glade 2) generate XML which has
+;; -*- mode: xml -*-.
+;;;###autoload
+(defalias 'xml-mode 'sgml-mode)
+
(defun sgml-comment-indent ()
(if (looking-at "--") comment-column 0))
(delete-backward-char 1)
(insert char)
(undo-boundary)
- (delete-backward-char 1)
- (cond
- ((< char 256)
- (insert ?&
- (or (aref sgml-char-names char)
- (format "#%d" char))
- ?\;))
- ((aref sgml-char-names-table char)
- (insert ?& (aref sgml-char-names-table char) ?\;))
- ((let ((c (encode-char char 'ucs)))
- (when c
- (insert (format "&#%d;" c))
- t)))
- (t ; should be an error? -- fx
- (insert char))))
+ (sgml-namify-char))
+
+(defun sgml-namify-char ()
+ "Change the char before point into its `&name;' equivalent.
+Uses `sgml-char-names'."
+ (interactive)
+ (let* ((char (char-before))
+ (name
+ (cond
+ ((null char) (error "No char before point"))
+ ((< char 256) (or (aref sgml-char-names char) char))
+ ((aref sgml-char-names-table char))
+ ((encode-char char 'ucs)))))
+ (if (not name)
+ (error "Don't know the name of `%c'" char)
+ (delete-backward-char 1)
+ (insert (format (if (numberp name) "&#%d;" "&%s;") name)))))
(defun sgml-name-self ()
"Insert a symbolic character name according to `sgml-char-names'."
;; inserted literally, one should obtain it as the return value of a
;; function, e.g. (identity "str").
+(defvar sgml-tag-last nil)
+(defvar sgml-tag-history nil)
(define-skeleton sgml-tag
"Prompt for a tag and insert it, optionally with attributes.
Completion and configuration are done according to `sgml-tag-alist'.
skeleton-transformation RET upcase RET, or put this in your `.emacs':
(setq sgml-transformation 'upcase)"
(funcall (or skeleton-transformation 'identity)
- (completing-read "Tag: " sgml-tag-alist))
+ (setq sgml-tag-last
+ (completing-read
+ (if (> (length sgml-tag-last) 0)
+ (format "Tag (default %s): " sgml-tag-last)
+ "Tag: ")
+ sgml-tag-alist nil nil nil 'sgml-tag-history sgml-tag-last)))
?< str |
(("") -1 '(undo-boundary) (identity "<")) | ; see comment above
`(("") '(setq v2 (sgml-attributes ,str t)) ?>
"Skip to beginning of tag or matching opening tag if present.
With prefix argument ARG, repeat this ARG times."
(interactive "p")
+ ;; FIXME: use sgml-get-context or something similar.
(while (>= arg 1)
(search-backward "<" nil t)
(if (looking-at "</\\([^ \n\t>]+\\)")
;; end tag, skip any nested pairs
(let ((case-fold-search t)
- (re (concat "</?" (regexp-quote (match-string 1)))))
+ (re (concat "</?" (regexp-quote (match-string 1))
+ ;; Ignore empty tags like <foo/>.
+ "\\([^>]*[^/>]\\)?>")))
(while (and (re-search-backward re nil t)
(eq (char-after (1+ (point))) ?/))
(forward-char 1)
(sgml-skip-tag-backward 1))))
(setq arg (1- arg))))
-(defun sgml-skip-tag-forward (arg &optional return)
+(defun sgml-skip-tag-forward (arg)
"Skip to end of tag or matching closing tag if present.
With prefix argument ARG, repeat this ARG times.
Return t iff after a closing tag."
(interactive "p")
- (setq return t)
- (while (>= arg 1)
- (skip-chars-forward "^<>")
- (if (eq (following-char) ?>)
- (up-list -1))
- (if (looking-at "<\\([^/ \n\t>]+\\)")
- ;; start tag, skip any nested same pairs _and_ closing tag
- (let ((case-fold-search t)
- (re (concat "</?" (regexp-quote (match-string 1))))
- point close)
- (forward-list 1)
- (setq point (point))
- (while (and (re-search-forward re nil t)
- (not (setq close
- (eq (char-after (1+ (match-beginning 0))) ?/)))
- (not (up-list -1))
- (sgml-skip-tag-forward 1))
- (setq close nil))
- (if close
- (up-list 1)
- (goto-char point)
- (setq return)))
- (forward-list 1))
- (setq arg (1- arg)))
- return)
+ ;; FIXME: Use sgml-get-context or something similar.
+ ;; It currently might jump to an unrelated </P> if the <P>
+ ;; we're skipping has no matching </P>.
+ (let ((return t))
+ (with-syntax-table sgml-tag-syntax-table
+ (while (>= arg 1)
+ (skip-chars-forward "^<>")
+ (if (eq (following-char) ?>)
+ (up-list -1))
+ (if (looking-at "<\\([^/ \n\t>]+\\)\\([^>]*[^/>]\\)?>")
+ ;; start tag, skip any nested same pairs _and_ closing tag
+ (let ((case-fold-search t)
+ (re (concat "</?" (regexp-quote (match-string 1))
+ ;; Ignore empty tags like <foo/>.
+ "\\([^>]*[^/>]\\)?>"))
+ point close)
+ (forward-list 1)
+ (setq point (point))
+ ;; FIXME: This re-search-forward will mistakenly match
+ ;; tag-like text inside attributes.
+ (while (and (re-search-forward re nil t)
+ (not (setq close
+ (eq (char-after (1+ (match-beginning 0))) ?/)))
+ (goto-char (match-beginning 0))
+ (sgml-skip-tag-forward 1))
+ (setq close nil))
+ (unless close
+ (goto-char point)
+ (setq return nil)))
+ (forward-list 1))
+ (setq arg (1- arg)))
+ return)))
(defun sgml-delete-tag (arg)
+ ;; FIXME: Should be called sgml-kill-tag or should not touch the kill-ring.
"Delete tag on or after cursor, and matching closing or opening tag.
With prefix argument ARG, repeat this ARG times."
(interactive "p")
(goto-char close)
(kill-sexp 1))
(setq open (point))
- (sgml-skip-tag-forward 1)
- (backward-list)
- (forward-char)
- (if (eq (aref (sgml-beginning-of-tag) 0) ?/)
- (kill-sexp 1)))
+ (when (sgml-skip-tag-forward 1)
+ (kill-sexp -1)))
+ ;; Delete any resulting empty line. If we didn't kill-sexp,
+ ;; this *should* do nothing, because we're right after the tag.
+ (if (progn (forward-line 0) (looking-at "\\(?:[ \t]*$\\)\n?"))
+ (delete-region (match-beginning 0) (match-end 0)))
(goto-char open)
- (kill-sexp 1)))
+ (kill-sexp 1)
+ (if (progn (forward-line 0) (looking-at "\\(?:[ \t]*$\\)\n?"))
+ (delete-region (match-beginning 0) (match-end 0)))))
(setq arg (1- arg))))
\f
(or (get 'sgml-tag 'invisible)
(setplist 'sgml-tag
(append '(invisible t
- intangible t
point-entered sgml-point-entered
rear-nonsticky t
read-only t)
(insert ?\"))))
(defun sgml-quote (start end &optional unquotep)
- "Quote SGML text in region.
-With prefix argument, unquote the region."
- (interactive "r\np")
- (if (< start end)
- (goto-char start)
- (goto-char end)
- (setq end start))
- (if unquotep
- (while (re-search-forward "&\\(amp\\|\\(l\\|\\(g\\)\\)t\\)[;\n]" end t)
- (replace-match (if (match-end 3) ">" (if (match-end 2) "<" "&"))))
- (while (re-search-forward "[&<>]" end t)
- (replace-match (cdr (assq (char-before) '((?& . "&")
- (?< . "<")
- (?> . ">"))))))))
+ "Quote SGML text in region START ... END.
+Only &, < and > are quoted, the rest is left untouched.
+With prefix argument UNQUOTEP, unquote the region."
+ (interactive "r\nP")
+ (save-restriction
+ (narrow-to-region start end)
+ (goto-char (point-min))
+ (if unquotep
+ ;; FIXME: We should unquote other named character references as well.
+ (while (re-search-forward
+ "\\(&\\(amp\\|\\(l\\|\\(g\\)\\)t\\)\\)[][<>&;\n\t \"%!'(),/=?]"
+ nil t)
+ (replace-match (if (match-end 4) ">" (if (match-end 3) "<" "&")) t t
+ nil (if (eq (char-before (match-end 0)) ?\;) 0 1)))
+ (while (re-search-forward "[&<>]" nil t)
+ (replace-match (cdr (assq (char-before) '((?& . "&")
+ (?< . "<")
+ (?> . ">"))))
+ t t)))))
+
+(defun sgml-pretty-print (beg end)
+ "Simple-minded pretty printer for SGML.
+Re-indents the code and inserts newlines between BEG and END.
+You might want to turn on `auto-fill-mode' to get better results."
+ ;; TODO:
+ ;; - insert newline between some start-tag and text.
+ ;; - don't insert newline in front of some end-tags.
+ (interactive "r")
+ (save-excursion
+ (if (< beg end)
+ (goto-char beg)
+ (goto-char end)
+ (setq end beg)
+ (setq beg (point)))
+ ;; Don't use narrowing because it screws up auto-indent.
+ (setq end (copy-marker end t))
+ (with-syntax-table sgml-tag-syntax-table
+ (while (re-search-forward "<" end t)
+ (goto-char (match-beginning 0))
+ (unless (or ;;(looking-at "</")
+ (progn (skip-chars-backward " \t") (bolp)))
+ (reindent-then-newline-and-indent))
+ (forward-sexp 1)))
+ ;; (indent-region beg end)
+ ))
\f
;; Parsing
(and (>= start (point-min))
(equal str (buffer-substring-no-properties start (point))))))
-(defun sgml-parse-tag-backward ()
+(defun sgml-parse-tag-backward (&optional limit)
"Parse an SGML tag backward, and return information about the tag.
Assume that parsing starts from within a textual context.
Leave point at the beginning of the tag."
(let (tag-type tag-start tag-end name)
- (or (search-backward ">" nil 'move)
+ (or (re-search-backward "[<>]" limit 'move)
(error "No tag found"))
+ (when (eq (char-after) ?<)
+ ;; Oops!! Looks like we were not in a textual context after all!.
+ ;; Let's try to recover.
+ (with-syntax-table sgml-tag-syntax-table
+ (forward-sexp)
+ (forward-char -1)))
(setq tag-end (1+ (point)))
(cond
((sgml-looking-back-at "--") ; comment
(goto-char tag-start)
(sgml-make-tag tag-type tag-start tag-end name)))
-(defun sgml-get-context (&optional full)
+(defun sgml-get-context (&optional until)
"Determine the context of the current position.
-If FULL is `empty', return even if the context is empty (i.e.
+By default, parse until we find a start-tag as the first thing on a line.
+If UNTIL is `empty', return even if the context is empty (i.e.
we just skipped over some element and got to a beginning of line).
-If FULL is non-nil, parse back to the beginning of the buffer, otherwise
-parse until we find a start-tag as the first thing on a line.
The context is a list of tag-info structures. The last one is the tag
-immediately enclosing the current position."
+immediately enclosing the current position.
+
+Point is assumed to be outside of any tag. If we discover that it's
+not the case, the first tag returned is the one inside which we are."
(let ((here (point))
(ignore nil)
(context nil)
;; enclosing start-tags we'll have to ignore.
(skip-chars-backward " \t\n") ; Make sure we're not at indentation.
(while
- (and (or ignore
- (not (if full (eq full 'empty) context))
+ (and (not (eq until 'now))
+ (or ignore
+ (not (if until (eq until 'empty) context))
(not (sgml-at-indentation-p))
(and context
(/= (point) (sgml-tag-start (car context)))
- (sgml-unclosed-tag-p (sgml-tag-name (car context)))))
+ (sgml-unclosed-tag-p (sgml-tag-name (car context)))))
(setq tag-info (ignore-errors (sgml-parse-tag-backward))))
-
+
;; This tag may enclose things we thought were tags. If so,
;; discard them.
(while (and context
(> (sgml-tag-end tag-info)
(sgml-tag-end (car context))))
(setq context (cdr context)))
-
+
(cond
+ ((> (sgml-tag-end tag-info) here)
+ ;; Oops!! Looks like we were not outside of any tag, after all.
+ (push tag-info context)
+ (setq until 'now))
;; start-tag
((eq (sgml-tag-type tag-info) 'open)
(t
;; The open and close tags don't match.
(if (not sgml-xml-mode)
- ;; Assume the open tag is simply not closed.
(unless (sgml-unclosed-tag-p (sgml-tag-name tag-info))
- (message "Unclosed tag <%s>" (sgml-tag-name tag-info)))
+ (message "Unclosed tag <%s>" (sgml-tag-name tag-info))
+ (let ((tmp ignore))
+ ;; We could just assume that the tag is simply not closed
+ ;; but it's a bad assumption when tags *are* closed but
+ ;; not properly nested.
+ (while (and (cdr tmp)
+ (not (eq t (compare-strings
+ (sgml-tag-name tag-info) nil nil
+ (cadr tmp) nil nil t))))
+ (setq tmp (cdr tmp)))
+ (if (cdr tmp) (setcdr tmp (cddr tmp)))))
(message "Unmatched tags <%s> and </%s>"
(sgml-tag-name tag-info) (pop ignore))))))
If FULL is non-nil, parse back to the beginning of the buffer."
(interactive "P")
(with-output-to-temp-buffer "*XML Context*"
- (pp (save-excursion (sgml-get-context full)))))
+ (save-excursion
+ (let ((context (sgml-get-context)))
+ (when full
+ (let ((more nil))
+ (while (setq more (sgml-get-context))
+ (setq context (nconc more context)))))
+ (pp context)))))
\f
;; Editing shortcuts
(defun sgml-close-tag ()
- "Insert an close-tag for the current element."
+ "Close current element.
+Depending on context, inserts a matching close-tag, or closes
+the current start-tag or the current comment or the current cdata, ..."
(interactive)
(case (car (sgml-lexical-context))
(comment (insert " -->"))
(and (not sgml-xml-mode)
(member-ignore-case tag-name sgml-unclosed-tags)))
-(defun sgml-calculate-indent ()
- "Calculate the column to which this line should be indented."
- (let ((lcon (sgml-lexical-context)))
-
- ;; Indent comment-start markers inside <!-- just like comment-end markers.
- (if (and (eq (car lcon) 'tag)
- (looking-at "--")
- (save-excursion (goto-char (cdr lcon)) (looking-at "<!--")))
- (setq lcon (cons 'comment (+ (cdr lcon) 2))))
-
- (case (car lcon)
-
- (string
+(defun sgml-calculate-indent (&optional lcon)
+ "Calculate the column to which this line should be indented.
+LCON is the lexical context, if any."
+ (unless lcon (setq lcon (sgml-lexical-context)))
+
+ ;; Indent comment-start markers inside <!-- just like comment-end markers.
+ (if (and (eq (car lcon) 'tag)
+ (looking-at "--")
+ (save-excursion (goto-char (cdr lcon)) (looking-at "<!--")))
+ (setq lcon (cons 'comment (+ (cdr lcon) 2))))
+
+ (case (car lcon)
+
+ (string
+ ;; Go back to previous non-empty line.
+ (while (and (> (point) (cdr lcon))
+ (zerop (forward-line -1))
+ (looking-at "[ \t]*$")))
+ (if (> (point) (cdr lcon))
+ ;; Previous line is inside the string.
+ (current-indentation)
+ (goto-char (cdr lcon))
+ (1+ (current-column))))
+
+ (comment
+ (let ((mark (looking-at "--")))
;; Go back to previous non-empty line.
(while (and (> (point) (cdr lcon))
(zerop (forward-line -1))
- (looking-at "[ \t]*$")))
+ (or (looking-at "[ \t]*$")
+ (if mark (not (looking-at "[ \t]*--"))))))
(if (> (point) (cdr lcon))
- ;; Previous line is inside the string.
- (current-indentation)
+ ;; Previous line is inside the comment.
+ (skip-chars-forward " \t")
(goto-char (cdr lcon))
- (1+ (current-column))))
-
- (comment
- (let ((mark (looking-at "--")))
- ;; Go back to previous non-empty line.
- (while (and (> (point) (cdr lcon))
- (zerop (forward-line -1))
- (or (looking-at "[ \t]*$")
- (if mark (not (looking-at "[ \t]*--"))))))
- (if (> (point) (cdr lcon))
- ;; Previous line is inside the comment.
- (skip-chars-forward " \t")
- (goto-char (cdr lcon)))
- (when (and (not mark) (looking-at "--"))
- (forward-char 2) (skip-chars-forward " \t"))
- (current-column)))
-
- (cdata
- (current-column))
-
- (tag
+ ;; Skip `<!' to get to the `--' with which we want to align.
+ (search-forward "--")
+ (goto-char (match-beginning 0)))
+ (when (and (not mark) (looking-at "--"))
+ (forward-char 2) (skip-chars-forward " \t"))
+ (current-column)))
+
+ ;; We don't know how to indent it. Let's be honest about it.
+ (cdata nil)
+
+ (tag
+ (goto-char (1+ (cdr lcon)))
+ (skip-chars-forward "^ \t\n") ;Skip tag name.
+ (skip-chars-forward " \t")
+ (if (not (eolp))
+ (current-column)
+ ;; This is the first attribute: indent.
(goto-char (1+ (cdr lcon)))
- (skip-chars-forward "^ \t\n") ;Skip tag name.
- (skip-chars-forward " \t")
- (if (not (eolp))
- (current-column)
- ;; This is the first attribute: indent.
- (goto-char (1+ (cdr lcon)))
- (+ (current-column) sgml-basic-offset)))
-
- (text
- (while (looking-at "</")
- (forward-sexp 1)
- (skip-chars-forward " \t"))
- (let* ((here (point))
- (unclosed (and ;; (not sgml-xml-mode)
- (looking-at sgml-tag-name-re)
- (member-ignore-case (match-string 1)
- sgml-unclosed-tags)
- (match-string 1)))
- (context
- ;; If possible, align on the previous non-empty text line.
- ;; Otherwise, do a more serious parsing to find the
- ;; tag(s) relative to which we should be indenting.
- (if (and (not unclosed) (skip-chars-backward " \t")
- (< (skip-chars-backward " \t\n") 0)
- (back-to-indentation)
- (> (point) (cdr lcon)))
- nil
- (goto-char here)
- (nreverse (sgml-get-context (if unclosed nil 'empty)))))
- (there (point)))
- ;; Ignore previous unclosed start-tag in context.
- (while (and context unclosed
- (eq t (compare-strings
- (sgml-tag-name (car context)) nil nil
- unclosed nil nil t)))
- (setq context (cdr context)))
- ;; Indent to reflect nesting.
- (if (and context
- (goto-char (sgml-tag-end (car context)))
- (skip-chars-forward " \t\n")
- (< (point) here) (sgml-at-indentation-p))
- (current-column)
- (goto-char there)
- (+ (current-column)
- (* sgml-basic-offset (length context))))))
-
- (otherwise
- (error "Unrecognised context %s" (car lcon)))
-
- )))
+ (+ (current-column) sgml-basic-offset)))
+
+ (text
+ (while (looking-at "</")
+ (forward-sexp 1)
+ (skip-chars-forward " \t"))
+ (let* ((here (point))
+ (unclosed (and ;; (not sgml-xml-mode)
+ (looking-at sgml-tag-name-re)
+ (member-ignore-case (match-string 1)
+ sgml-unclosed-tags)
+ (match-string 1)))
+ (context
+ ;; If possible, align on the previous non-empty text line.
+ ;; Otherwise, do a more serious parsing to find the
+ ;; tag(s) relative to which we should be indenting.
+ (if (and (not unclosed) (skip-chars-backward " \t")
+ (< (skip-chars-backward " \t\n") 0)
+ (back-to-indentation)
+ (> (point) (cdr lcon)))
+ nil
+ (goto-char here)
+ (nreverse (sgml-get-context (if unclosed nil 'empty)))))
+ (there (point)))
+ ;; Ignore previous unclosed start-tag in context.
+ (while (and context unclosed
+ (eq t (compare-strings
+ (sgml-tag-name (car context)) nil nil
+ unclosed nil nil t)))
+ (setq context (cdr context)))
+ ;; Indent to reflect nesting.
+ (cond
+ ;; If we were not in a text context after all, let's try again.
+ ((and context (> (sgml-tag-end (car context)) here))
+ (goto-char here)
+ (sgml-calculate-indent
+ (cons (if (memq (sgml-tag-type (car context)) '(comment cdata))
+ (sgml-tag-type (car context)) 'tag)
+ (sgml-tag-start (car context)))))
+ ;; Align on the first element after the nearest open-tag, if any.
+ ((and context
+ (goto-char (sgml-tag-end (car context)))
+ (skip-chars-forward " \t\n")
+ (< (point) here) (sgml-at-indentation-p))
+ (current-column))
+ (t
+ (goto-char there)
+ (+ (current-column)
+ (* sgml-basic-offset (length context)))))))
+
+ (otherwise
+ (error "Unrecognised context %s" (car lcon)))
+
+ ))
(defun sgml-indent-line ()
"Indent the current line as SGML."
(back-to-indentation)
(if (>= (point) savep) (setq savep nil))
(sgml-calculate-indent))))
- (if savep
- (save-excursion (indent-line-to indent-col))
- (indent-line-to indent-col))))
+ (if (null indent-col)
+ 'noindent
+ (if savep
+ (save-excursion (indent-line-to indent-col))
+ (indent-line-to indent-col)))))
(defun sgml-guess-indent ()
"Guess an appropriate value for `sgml-basic-offset'.
(interactive)
(save-excursion
(goto-char (point-min))
- (if (re-search-forward "^\\([ \t]+\\)<" 100 'noerror)
+ (if (re-search-forward "^\\([ \t]+\\)<" 500 'noerror)
(progn
(set (make-local-variable 'sgml-basic-offset)
- (length (match-string 1)))
+ (1- (current-column)))
(message "Guessed sgml-basic-offset = %d"
sgml-basic-offset)
))))
The third `match-string' will be the used in the menu.")
(defun html-imenu-index ()
- "Return an table of contents for an HTML buffer for use with Imenu."
+ "Return a table of contents for an HTML buffer for use with Imenu."
(let (toc-index)
(save-excursion
(goto-char (point-min))
toc-index))))
(nreverse toc-index)))
-(defun html-autoview-mode (&optional arg)
+(define-minor-mode html-autoview-mode
"Toggle automatic viewing via `browse-url-of-buffer' upon saving buffer.
With positive prefix ARG always turns viewing on, with negative ARG always off.
Can be used as a value for `html-mode-hook'."
- (interactive "P")
- (if (setq arg (if arg
- (< (prefix-numeric-value arg) 0)
- (and (boundp 'after-save-hook)
- (memq 'browse-url-of-buffer after-save-hook))))
- (setq after-save-hook (delq 'browse-url-of-buffer after-save-hook))
- (add-hook 'after-save-hook 'browse-url-of-buffer nil t))
- (message "Autoviewing turned %s."
- (if arg "off" "on")))
+ nil nil nil
+ :group 'sgml
+ (if html-autoview-mode
+ (add-hook 'after-save-hook 'browse-url-of-buffer nil t)
+ (remove-hook 'after-save-hook 'browse-url-of-buffer t)))
\f
(define-skeleton html-href-anchor
(provide 'sgml-mode)
+;;; arch-tag: 9675da94-b7f9-4bda-ad19-73ed7b4fb401
;;; sgml-mode.el ends here