1 ;;; sgml-mode.el --- SGML- and HTML-editing modes -*- coding: utf-8 -*-
3 ;; Copyright (C) 1992, 1995, 1996, 1998, 2001, 2002, 2003, 2004,
4 ;; 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
6 ;; Author: James Clark <jjc@jclark.com>
8 ;; Adapted-By: ESR, Daniel Pfeiffer <occitan@esperanto.org>,
9 ;; F.Potorti@cnuce.cnr.it
10 ;; Keywords: wp, hypermedia, comm, languages
12 ;; This file is part of GNU Emacs.
14 ;; GNU Emacs is free software: you can redistribute it and/or modify
15 ;; it under the terms of the GNU General Public License as published by
16 ;; the Free Software Foundation, either version 3 of the License, or
17 ;; (at your option) any later version.
19 ;; GNU Emacs is distributed in the hope that it will be useful,
20 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
21 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 ;; GNU General Public License for more details.
24 ;; You should have received a copy of the GNU General Public License
25 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
29 ;; Configurable major mode for editing document in the SGML standard general
30 ;; markup language. As an example contains a mode for editing the derived
31 ;; HTML hypertext markup language.
42 :link '(custom-group-link :tag "Font Lock Faces group" font-lock-faces)
45 (defcustom sgml-basic-offset 2
46 "Specifies the basic indentation level for `sgml-indent-line'."
50 (defcustom sgml-transformation-function 'identity
51 "Default value for `skeleton-transformation-function' in SGML mode."
55 (put 'sgml-transformation-function 'variable-interactive
56 "aTransformation function: ")
57 (defvaralias 'sgml-transformation 'sgml-transformation-function)
59 (defcustom sgml-mode-hook nil
60 "Hook run by command `sgml-mode'.
61 `text-mode-hook' is run first."
65 ;; As long as Emacs' syntax can't be complemented with predicates to context
66 ;; sensitively confirm the syntax of characters, we have to live with this
67 ;; kludgy kind of tradeoff.
68 (defvar sgml-specials '(?\")
69 "List of characters that have a special meaning for SGML mode.
70 This list is used when first loading the `sgml-mode' library.
71 The supported characters and potential disadvantages are:
73 ?\\\" Makes \" in text start a string.
74 ?' Makes ' in text start a string.
75 ?- Makes -- in text start a comment.
77 When only one of ?\\\" or ?' are included, \"'\" or '\"', as can be found in
78 DTDs, start a string. To partially avoid this problem this also makes these
79 self insert as named entities depending on `sgml-quick-keys'.
81 Including ?- has the problem of affecting dashes that have nothing to do
82 with comments, so we normally turn it off.")
84 (defvar sgml-quick-keys nil
85 "Use <, >, &, /, SPC and `sgml-specials' keys \"electrically\" when non-nil.
86 This takes effect when first loading the `sgml-mode' library.")
89 (let ((map (make-keymap)) ;`sparse' doesn't allow binding to charsets.
90 (menu-map (make-sparse-keymap "SGML")))
91 (define-key map "\C-c\C-i" 'sgml-tags-invisible)
92 (define-key map "/" 'sgml-slash)
93 (define-key map "\C-c\C-n" 'sgml-name-char)
94 (define-key map "\C-c\C-t" 'sgml-tag)
95 (define-key map "\C-c\C-a" 'sgml-attributes)
96 (define-key map "\C-c\C-b" 'sgml-skip-tag-backward)
97 (define-key map [?\C-c left] 'sgml-skip-tag-backward)
98 (define-key map "\C-c\C-f" 'sgml-skip-tag-forward)
99 (define-key map [?\C-c right] 'sgml-skip-tag-forward)
100 (define-key map "\C-c\C-d" 'sgml-delete-tag)
101 (define-key map "\C-c\^?" 'sgml-delete-tag)
102 (define-key map "\C-c?" 'sgml-tag-help)
103 (define-key map "\C-c/" 'sgml-close-tag)
104 (define-key map "\C-c8" 'sgml-name-8bit-mode)
105 (define-key map "\C-c\C-v" 'sgml-validate)
106 (when sgml-quick-keys
107 (define-key map "&" 'sgml-name-char)
108 (define-key map "<" 'sgml-tag)
109 (define-key map " " 'sgml-auto-attributes)
110 (define-key map ">" 'sgml-maybe-end-tag)
111 (when (memq ?\" sgml-specials)
112 (define-key map "\"" 'sgml-name-self))
113 (when (memq ?' sgml-specials)
114 (define-key map "'" 'sgml-name-self)))
117 (while (< (setq c (1+ c)) 256)
118 (aset map c 'sgml-maybe-name-self)))
119 (define-key map [menu-bar sgml] (cons "SGML" menu-map))
120 (define-key menu-map [sgml-validate] '("Validate" . sgml-validate))
121 (define-key menu-map [sgml-name-8bit-mode]
122 '("Toggle 8 Bit Insertion" . sgml-name-8bit-mode))
123 (define-key menu-map [sgml-tags-invisible]
124 '("Toggle Tag Visibility" . sgml-tags-invisible))
125 (define-key menu-map [sgml-tag-help]
126 '("Describe Tag" . sgml-tag-help))
127 (define-key menu-map [sgml-delete-tag]
128 '("Delete Tag" . sgml-delete-tag))
129 (define-key menu-map [sgml-skip-tag-forward]
130 '("Forward Tag" . sgml-skip-tag-forward))
131 (define-key menu-map [sgml-skip-tag-backward]
132 '("Backward Tag" . sgml-skip-tag-backward))
133 (define-key menu-map [sgml-attributes]
134 '("Insert Attributes" . sgml-attributes))
135 (define-key menu-map [sgml-tag] '("Insert Tag" . sgml-tag))
137 "Keymap for SGML mode. See also `sgml-specials'.")
139 (defun sgml-make-syntax-table (specials)
140 (let ((table (make-syntax-table text-mode-syntax-table)))
141 (modify-syntax-entry ?< "(>" table)
142 (modify-syntax-entry ?> ")<" table)
143 (modify-syntax-entry ?: "_" table)
144 (modify-syntax-entry ?_ "_" table)
145 (modify-syntax-entry ?. "_" table)
146 (if (memq ?- specials)
147 (modify-syntax-entry ?- "_ 1234" table))
148 (if (memq ?\" specials)
149 (modify-syntax-entry ?\" "\"\"" table))
150 (if (memq ?' specials)
151 (modify-syntax-entry ?\' "\"'" table))
154 (defvar sgml-mode-syntax-table (sgml-make-syntax-table sgml-specials)
155 "Syntax table used in SGML mode. See also `sgml-specials'.")
157 (defconst sgml-tag-syntax-table
158 (let ((table (sgml-make-syntax-table sgml-specials)))
159 (dolist (char '(?\( ?\) ?\{ ?\} ?\[ ?\] ?$ ?% ?& ?* ?+ ?/))
160 (modify-syntax-entry char "." table))
161 (unless (memq ?' sgml-specials)
162 ;; Avoid that skipping a tag backwards skips any "'" prefixing it.
163 (modify-syntax-entry ?' "w" table))
165 "Syntax table used to parse SGML tags.")
167 (defcustom sgml-name-8bit-mode nil
168 "When non-nil, insert non-ASCII characters as named entities."
172 (defvar sgml-char-names
173 [nil nil nil nil nil nil nil nil
174 nil nil nil nil nil nil nil nil
175 nil nil nil nil nil nil nil nil
176 nil nil nil nil nil nil nil nil
177 "nbsp" "excl" "quot" "num" "dollar" "percnt" "amp" "apos"
178 "lpar" "rpar" "ast" "plus" "comma" "hyphen" "period" "sol"
179 nil nil nil nil nil nil nil nil
180 nil nil "colon" "semi" "lt" "eq" "gt" "quest"
181 "commat" nil nil nil nil nil nil nil
182 nil nil nil nil nil nil nil nil
183 nil nil nil nil nil nil nil nil
184 nil nil nil "lsqb" nil "rsqb" "uarr" "lowbar"
185 "lsquo" nil nil nil nil nil nil nil
186 nil nil nil nil nil nil nil nil
187 nil nil nil nil nil nil nil nil
188 nil nil nil "lcub" "verbar" "rcub" "tilde" nil
189 nil nil nil nil nil nil nil nil
190 nil nil nil nil nil nil nil nil
191 nil nil nil nil nil nil nil nil
192 nil nil nil nil nil nil nil nil
193 "nbsp" "iexcl" "cent" "pound" "curren" "yen" "brvbar" "sect"
194 "uml" "copy" "ordf" "laquo" "not" "shy" "reg" "macr"
195 "ring" "plusmn" "sup2" "sup3" "acute" "micro" "para" "middot"
196 "cedil" "sup1" "ordm" "raquo" "frac14" "frac12" "frac34" "iquest"
197 "Agrave" "Aacute" "Acirc" "Atilde" "Auml" "Aring" "AElig" "Ccedil"
198 "Egrave" "Eacute" "Ecirc" "Euml" "Igrave" "Iacute" "Icirc" "Iuml"
199 "ETH" "Ntilde" "Ograve" "Oacute" "Ocirc" "Otilde" "Ouml" nil
200 "Oslash" "Ugrave" "Uacute" "Ucirc" "Uuml" "Yacute" "THORN" "szlig"
201 "agrave" "aacute" "acirc" "atilde" "auml" "aring" "aelig" "ccedil"
202 "egrave" "eacute" "ecirc" "euml" "igrave" "iacute" "icirc" "iuml"
203 "eth" "ntilde" "ograve" "oacute" "ocirc" "otilde" "ouml" "divide"
204 "oslash" "ugrave" "uacute" "ucirc" "uuml" "yacute" "thorn" "yuml"]
205 "Vector of symbolic character names without `&' and `;'.")
207 (put 'sgml-table 'char-table-extra-slots 0)
209 (defvar sgml-char-names-table
210 (let ((table (make-char-table 'sgml-table))
214 (setq elt (aref sgml-char-names i))
215 (if elt (aset table (make-char 'latin-iso8859-1 i) elt))
218 "A table for mapping non-ASCII characters into SGML entity names.
219 Currently, only Latin-1 characters are supported.")
221 ;; nsgmls is a free SGML parser in the SP suite available from
222 ;; ftp.jclark.com and otherwise packaged for GNU systems.
223 ;; Its error messages can be parsed by next-error.
224 ;; The -s option suppresses output.
226 (defcustom sgml-validate-command "nsgmls -s" ; replaced old `sgmls'
227 "The command to validate an SGML document.
228 The file name of current buffer file name will be appended to this,
229 separated by a space."
234 (defvar sgml-saved-validate-command nil
235 "The command last used to validate in this buffer.")
237 ;; I doubt that null end tags are used much for large elements,
238 ;; so use a small distance here.
239 (defcustom sgml-slash-distance 1000
240 "If non-nil, is the maximum distance to search for matching `/'."
241 :type '(choice (const nil) integer)
244 (defconst sgml-namespace-re "[_[:alpha:]][-_.[:alnum:]]*")
245 (defconst sgml-name-re "[_:[:alpha:]][-_.:[:alnum:]]*")
246 (defconst sgml-tag-name-re (concat "<\\([!/?]?" sgml-name-re "\\)"))
247 (defconst sgml-attrs-re "\\(?:[^\"'/><]\\|\"[^\"]*\"\\|'[^']*'\\)*")
248 (defconst sgml-start-tag-regex (concat "<" sgml-name-re sgml-attrs-re)
249 "Regular expression that matches a non-empty start tag.
250 Any terminating `>' or `/' is not matched.")
252 (defface sgml-namespace
253 '((t (:inherit font-lock-builtin-face)))
254 "`sgml-mode' face used to highlight the namespace part of identifiers."
256 (defvar sgml-namespace-face 'sgml-namespace)
259 (defconst sgml-font-lock-keywords-1
260 `((,(concat "<\\([!?]" sgml-name-re "\\)") 1 font-lock-keyword-face)
261 ;; We could use the simpler "\\(" sgml-namespace-re ":\\)?" instead,
262 ;; but it would cause a bit more backtracking in the re-matcher.
263 (,(concat "</?\\(" sgml-namespace-re "\\)\\(?::\\(" sgml-name-re "\\)\\)?")
264 (1 (if (match-end 2) sgml-namespace-face font-lock-function-name-face))
265 (2 font-lock-function-name-face nil t))
266 ;; FIXME: this doesn't cover the variables using a default value.
267 ;; The first shy-group is an important anchor: it prevents an O(n^2)
268 ;; pathological case where we otherwise keep retrying a failing match
269 ;; against a very long word at every possible position within the word.
270 (,(concat "\\(?:^\\|[ \t]\\)\\(" sgml-namespace-re "\\)\\(?::\\("
271 sgml-name-re "\\)\\)?=[\"']")
272 (1 (if (match-end 2) sgml-namespace-face font-lock-variable-name-face))
273 (2 font-lock-variable-name-face nil t))
274 (,(concat "[&%]" sgml-name-re ";?") . font-lock-variable-name-face)))
276 (defconst sgml-font-lock-keywords-2
278 sgml-font-lock-keywords-1
281 (regexp-opt (mapcar 'car sgml-tag-face-alist) t)
282 "\\([ \t][^>]*\\)?>\\([^<]+\\)</\\1>")
283 '(3 (cdr (assoc-string (match-string 1) sgml-tag-face-alist t))
286 ;; for font-lock, but must be defvar'ed after
287 ;; sgml-font-lock-keywords-1 and sgml-font-lock-keywords-2 above
288 (defvar sgml-font-lock-keywords sgml-font-lock-keywords-1
289 "*Rules for highlighting SGML code. See also `sgml-tag-face-alist'.")
291 (defvar sgml-font-lock-syntactic-keywords
292 ;; Use the `b' style of comments to avoid interference with the -- ... --
293 ;; comments recognized when `sgml-specials' includes ?-.
294 ;; FIXME: beware of <!--> blabla <!--> !!
295 '(("\\(<\\)!--" (1 "< b"))
296 ("--[ \t\n]*\\(>\\)" (1 "> b"))
297 ;; Double quotes outside of tags should not introduce strings.
298 ;; Be careful to call `syntax-ppss' on a position before the one we're
299 ;; going to change, so as not to need to flush the data we just computed.
300 ("\"" (0 (if (prog1 (zerop (car (syntax-ppss (match-beginning 0))))
301 (goto-char (match-end 0)))
303 "Syntactic keywords for `sgml-mode'.")
306 (defvar sgml-face-tag-alist ()
307 "Alist of face and tag name for facemenu.")
309 (defvar sgml-tag-face-alist ()
310 "Tag names and face or list of faces to fontify with when invisible.
311 When `font-lock-maximum-decoration' is 1 this is always used for fontifying.
312 When more these are fontified together with `sgml-font-lock-keywords'.")
314 (defvar sgml-display-text ()
315 "Tag names as lowercase symbols, and display string when invisible.")
318 (defvar sgml-tags-invisible nil)
320 (defcustom sgml-tag-alist
321 '(("![" ("ignore" t) ("include" t))
326 "Alist of tag names for completing read and insertion rules.
327 This alist is made up as
332 TAGRULE is a list of optionally t (no endtag) or `\\n' (separate endtag by
333 newlines) or a skeleton with nil, t or `\\n' in place of the interactor
334 followed by an ATTRIBUTERULE (for an always present attribute) or an
337 The attribute alist is made up as
339 ((\"attribute\" . ATTRIBUTERULE)
342 ATTRIBUTERULE is a list of optionally t (no value when no input) followed by
343 an optional alist of possible values."
344 :type '(repeat (cons (string :tag "Tag Name")
345 (repeat :tag "Tag Rule" sexp)))
347 (put 'sgml-tag-alist 'risky-local-variable t)
349 (defcustom sgml-tag-help
350 '(("!" . "Empty declaration for comment")
351 ("![" . "Embed declarations with parser directive")
352 ("!attlist" . "Tag attributes declaration")
353 ("!doctype" . "Document type (DTD) declaration")
354 ("!element" . "Tag declaration")
355 ("!entity" . "Entity (macro) declaration"))
356 "Alist of tag name and short description."
357 :type '(repeat (cons (string :tag "Tag Name")
358 (string :tag "Description")))
361 (defcustom sgml-xml-mode nil
362 "When non-nil, tag insertion functions will be XML-compliant.
363 It is set to be buffer-local when the file has
364 a DOCTYPE or an XML declaration."
369 (defvar sgml-empty-tags nil
370 "List of tags whose !ELEMENT definition says EMPTY.")
372 (defvar sgml-unclosed-tags nil
373 "List of tags whose !ELEMENT definition says the end-tag is optional.")
375 (defun sgml-xml-guess ()
376 "Guess whether the current buffer is XML. Return non-nil if so."
378 (goto-char (point-min))
379 (or (string= "xml" (file-name-extension (or buffer-file-name "")))
380 (looking-at "\\s-*<\\?xml")
381 (when (re-search-forward
384 '("<!DOCTYPE" "\\(\\w+\\)" "\\(\\w+\\)"
385 "\"\\([^\"]+\\)\"" "\"\\([^\"]+\\)\"")
388 (string-match "X\\(HT\\)?ML" (match-string 3))))))
390 (defvar v2) ; free for skeleton
392 (defun sgml-comment-indent-new-line (&optional soft)
393 (let ((comment-start "-- ")
394 (comment-start-skip "\\(<!\\)?--[ \t]*")
396 (comment-style 'plain))
397 (comment-indent-new-line soft)))
399 (defun sgml-mode-facemenu-add-face-function (face end)
400 (let ((tag-face (cdr (assq face sgml-face-tag-alist))))
402 (setq tag-face (funcall skeleton-transformation-function tag-face))
403 (setq facemenu-end-add-face (concat "</" tag-face ">"))
404 (concat "<" tag-face ">"))
408 (memq (caar face) '(:foreground :background)))
409 (setq facemenu-end-add-face "</span>")
410 (format "<span style=\"%s:%s\">"
411 (if (eq (caar face) :foreground)
416 (error "Face not configured for %s mode"
417 (format-mode-line mode-name))))))
419 (defun sgml-fill-nobreak ()
420 ;; Don't break between a tag name and its first argument.
422 (skip-chars-backward " \t")
423 (and (not (zerop (skip-syntax-backward "w_")))
424 (skip-chars-backward "/?!")
425 (eq (char-before) ?<))))
428 (define-derived-mode sgml-mode text-mode '(sgml-xml-mode "XML" "SGML")
429 "Major mode for editing SGML documents.
431 Keys <, &, SPC within <>, \", / and ' can be electric depending on
434 An argument of N to a tag-inserting command means to wrap it around
435 the next N words. In Transient Mark mode, when the mark is active,
436 N defaults to -1, which means to wrap it around the current region.
438 If you like upcased tags, put (setq sgml-transformation-function 'upcase)
439 in your `.emacs' file.
441 Use \\[sgml-validate] to validate your document with an SGML parser.
443 Do \\[describe-variable] sgml- SPC to see available variables.
444 Do \\[describe-key] on the following bindings to discover what they do.
446 (make-local-variable 'sgml-saved-validate-command)
447 (make-local-variable 'facemenu-end-add-face)
448 ;;(make-local-variable 'facemenu-remove-face-function)
449 ;; A start or end tag by itself on a line separates a paragraph.
450 ;; This is desirable because SGML discards a newline that appears
451 ;; immediately after a start tag or immediately before an end tag.
452 (set (make-local-variable 'paragraph-start) (concat "[ \t]*$\\|\
453 \[ \t]*</?\\(" sgml-name-re sgml-attrs-re "\\)?>"))
454 (set (make-local-variable 'paragraph-separate)
455 (concat paragraph-start "$"))
456 (set (make-local-variable 'adaptive-fill-regexp) "[ \t]*")
457 (add-hook 'fill-nobreak-predicate 'sgml-fill-nobreak nil t)
458 (set (make-local-variable 'indent-line-function) 'sgml-indent-line)
459 (set (make-local-variable 'comment-start) "<!-- ")
460 (set (make-local-variable 'comment-end) " -->")
461 (set (make-local-variable 'comment-indent-function) 'sgml-comment-indent)
462 (set (make-local-variable 'comment-line-break-function)
463 'sgml-comment-indent-new-line)
464 (set (make-local-variable 'skeleton-further-elements)
465 '((completion-ignore-case t)))
466 (set (make-local-variable 'skeleton-end-hook)
469 (not (or (eq v2 '\n) (eq (car-safe v2) '\n)))
470 (newline-and-indent))))
471 (set (make-local-variable 'font-lock-defaults)
472 '((sgml-font-lock-keywords
473 sgml-font-lock-keywords-1
474 sgml-font-lock-keywords-2)
476 (font-lock-syntactic-keywords
477 . sgml-font-lock-syntactic-keywords)))
478 (set (make-local-variable 'facemenu-add-face-function)
479 'sgml-mode-facemenu-add-face-function)
480 (set (make-local-variable 'sgml-xml-mode) (sgml-xml-guess))
483 (set (make-local-variable 'skeleton-transformation-function)
484 sgml-transformation-function))
485 ;; This will allow existing comments within declarations to be
487 ;; I can't find a clear description of SGML/XML comments, but it seems that
488 ;; the only reliable ones are <!-- ... --> although it's not clear what
489 ;; "..." can contain. It used to accept -- ... -- as well, but that was
490 ;; apparently a mistake.
491 (set (make-local-variable 'comment-start-skip) "<!--[ \t]*")
492 (set (make-local-variable 'comment-end-skip) "[ \t]*--[ \t\n]*>")
493 ;; This definition has an HTML leaning but probably fits well for other modes.
494 (setq imenu-generic-expression
496 ,(concat "<!\\(element\\|entity\\)[ \t\n]+%?[ \t\n]*\\("
500 ,(concat "<[^>]+[ \t\n]+[Ii][Dd]=\\(['\"]"
501 (if sgml-xml-mode "" "?")
502 "\\)\\(" sgml-name-re "\\)\\1")
505 ,(concat "<[^>]+[ \t\n]+[Nn][Aa][Mm][Ee]=\\(['\"]"
506 (if sgml-xml-mode "" "?")
507 "\\)\\(" sgml-name-re "\\)\\1")
510 (defun sgml-comment-indent ()
511 (if (looking-at "--") comment-column 0))
513 (defun sgml-slash (arg)
514 "Insert ARG slash characters.
515 Behaves electrically if `sgml-quick-keys' is non-nil."
518 ((not (and (eq (char-before) ?<) (= arg 1)))
519 (sgml-slash-matching arg))
520 ((eq sgml-quick-keys 'indent)
522 (indent-according-to-mode))
523 ((eq sgml-quick-keys 'close)
524 (delete-backward-char 1)
527 (sgml-slash-matching arg))))
529 (defun sgml-slash-matching (arg)
530 "Insert `/' and display any previous matching `/'.
531 Two `/'s are treated as matching if the first `/' ends a net-enabling
532 start tag, and the second `/' is the corresponding null end tag."
536 (let ((oldpos (point))
541 (if sgml-slash-distance
542 (narrow-to-region (max (point-min)
543 (- (point) sgml-slash-distance))
545 (if (and (re-search-backward sgml-start-tag-regex (point-min) t)
546 (eq (match-end 0) (1- oldpos)))
548 (goto-char (1- oldpos))
549 (while (and (not blinkpos)
550 (search-backward "/" (point-min) t))
551 (let ((tagend (save-excursion
552 (if (re-search-backward sgml-start-tag-regex
556 (if (eq tagend (point))
558 (setq blinkpos (point))
559 (setq level (1- level)))
560 (setq level (1+ level)))))))
563 (if (pos-visible-in-window-p)
565 (message "Matches %s"
566 (buffer-substring (line-beginning-position)
567 (1+ blinkpos)))))))))
569 ;; Why doesn't this use the iso-cvt table or, preferably, generate the
570 ;; inverse of the extensive table in the SGML Quail input method? -- fx
571 ;; I guess that's moot since it only works with Latin-1 anyhow.
572 (defun sgml-name-char (&optional char)
573 "Insert a symbolic character name according to `sgml-char-names'.
574 Non-ASCII chars may be inserted either with the meta key, as in M-SPC for
575 no-break space or M-- for a soft hyphen; or via an input method or
576 encoded keyboard operation."
580 (setq char (read-quoted-char "Enter char or octal number")))
581 (delete-backward-char 1)
586 (defun sgml-namify-char ()
587 "Change the char before point into its `&name;' equivalent.
588 Uses `sgml-char-names'."
590 (let* ((char (char-before))
593 ((null char) (error "No char before point"))
594 ((< char 256) (or (aref sgml-char-names char) char))
595 ((aref sgml-char-names-table char))
596 ((encode-char char 'ucs)))))
598 (error "Don't know the name of `%c'" char)
599 (delete-backward-char 1)
600 (insert (format (if (numberp name) "&#%d;" "&%s;") name)))))
602 (defun sgml-name-self ()
603 "Insert a symbolic character name according to `sgml-char-names'."
605 (sgml-name-char last-command-event))
607 (defun sgml-maybe-name-self ()
608 "Insert a symbolic character name according to `sgml-char-names'."
610 (if sgml-name-8bit-mode
611 (let ((mc last-command-event))
613 (setq mc (unibyte-char-to-multibyte mc)))
614 (or mc (setq mc last-command-event))
616 (self-insert-command 1)))
618 (defun sgml-name-8bit-mode ()
619 "Toggle whether to insert named entities instead of non-ASCII characters.
620 This only works for Latin-1 input."
622 (setq sgml-name-8bit-mode (not sgml-name-8bit-mode))
623 (message "sgml name entity mode is now %s"
624 (if sgml-name-8bit-mode "ON" "OFF")))
626 ;; When an element of a skeleton is a string "str", it is passed
627 ;; through `skeleton-transformation-function' and inserted.
628 ;; If "str" is to be inserted literally, one should obtain it as
629 ;; the return value of a function, e.g. (identity "str").
631 (defvar sgml-tag-last nil)
632 (defvar sgml-tag-history nil)
633 (define-skeleton sgml-tag
634 "Prompt for a tag and insert it, optionally with attributes.
635 Completion and configuration are done according to `sgml-tag-alist'.
636 If you like tags and attributes in uppercase do \\[set-variable]
637 `skeleton-transformation-function' RET `upcase' RET, or put this
639 (setq sgml-transformation-function 'upcase)"
640 (funcall (or skeleton-transformation-function 'identity)
643 (if (> (length sgml-tag-last) 0)
644 (format "Tag (default %s): " sgml-tag-last)
646 sgml-tag-alist nil nil nil 'sgml-tag-history sgml-tag-last)))
648 (("") -1 '(undo-boundary) (identity "<")) | ; see comment above
649 `(("") '(setq v2 (sgml-attributes ,str t)) ?>
653 '(("") " [ " _ " ]]"))
654 ((and (eq v2 t) sgml-xml-mode (member ,str sgml-empty-tags))
656 ((or (and (eq v2 t) (not sgml-xml-mode)) (string-match "^[/!?]" ,str))
659 ;; Make sure we don't fall into an infinite loop.
660 ;; For xhtml's `tr' tag, we should maybe use \n instead.
661 (if (eq v2 t) (setq v2 nil))
662 ;; We use `identity' to prevent skeleton from passing
663 ;; `str' through `skeleton-transformation-function' a second time.
664 '(("") v2 _ v2 "</" (identity ',str) ?>))
666 (cons '("") (cdr v2)))
668 (append '(("") (car v2))
670 '(resume: (car v2) _ "</" (identity ',str) ?>))))))
672 (autoload 'skeleton-read "skeleton")
674 (defun sgml-attributes (tag &optional quiet)
675 "When at top level of a tag, interactively insert attributes.
677 Completion and configuration of TAG are done according to `sgml-tag-alist'.
678 If QUIET, do not print a message when there are no attributes for TAG."
679 (interactive (list (save-excursion (sgml-beginning-of-tag t))))
680 (or (stringp tag) (error "Wrong context for adding attribute"))
682 (let ((completion-ignore-case t)
683 (alist (cdr (assoc (downcase tag) sgml-tag-alist)))
685 (if (or (symbolp (car alist))
686 (symbolp (car (car alist))))
687 (setq car (car alist)
690 (message "No attributes configured."))
691 (if (stringp (car alist))
693 (insert (if (eq (preceding-char) ?\s) "" ?\s)
694 (funcall skeleton-transformation-function (car alist)))
696 (setq i (length alist))
699 (insert (funcall skeleton-transformation-function
701 (skeleton-read '(completing-read
704 (if (string= "" attribute)
706 (sgml-value (assoc (downcase attribute) alist))
708 (if (eq (preceding-char) ?\s)
709 (delete-backward-char 1)))
712 (defun sgml-auto-attributes (arg)
713 "Self insert the character typed; at top level of tag, prompt for attributes.
714 With prefix argument, only self insert."
716 (let ((point (point))
719 (not sgml-tag-alist) ; no message when nothing configured
720 (symbolp (setq tag (save-excursion (sgml-beginning-of-tag t))))
721 (eq (aref tag 0) ?/))
722 (self-insert-command (prefix-numeric-value arg))
723 (sgml-attributes tag)
724 (setq last-command-event ?\s)
725 (or (> (point) point)
726 (self-insert-command 1)))))
728 (defun sgml-tag-help (&optional tag)
729 "Display description of tag TAG. If TAG is omitted, use the tag at point."
731 (list (let ((def (save-excursion
732 (if (eq (following-char) ?<) (forward-char))
733 (sgml-beginning-of-tag))))
734 (completing-read (if def
735 (format "Tag (default %s): " def)
737 sgml-tag-alist nil nil nil
738 'sgml-tag-history def))))
739 (or (and tag (> (length tag) 0))
741 (if (eq (following-char) ?<)
743 (setq tag (sgml-beginning-of-tag))))
745 (error "No tag selected"))
746 (setq tag (downcase tag))
748 (or (cdr (assoc (downcase tag) sgml-tag-help))
749 (and (eq (aref tag 0) ?/)
750 (cdr (assoc (downcase (substring tag 1)) sgml-tag-help)))
751 "No description available")))
753 (defun sgml-maybe-end-tag (&optional arg)
754 "Name self unless in position to end a tag or a prefix ARG is given."
756 (if (or arg (eq (car (sgml-lexical-context)) 'tag))
757 (self-insert-command (prefix-numeric-value arg))
760 (defun sgml-skip-tag-backward (arg)
761 "Skip to beginning of tag or matching opening tag if present.
762 With prefix argument ARG, repeat this ARG times.
763 Return non-nil if we skipped over matched tags."
765 ;; FIXME: use sgml-get-context or something similar.
768 (search-backward "<" nil t)
769 (if (looking-at "</\\([^ \n\t>]+\\)")
770 ;; end tag, skip any nested pairs
771 (let ((case-fold-search t)
772 (re (concat "</?" (regexp-quote (match-string 1))
773 ;; Ignore empty tags like <foo/>.
774 "\\([^>]*[^/>]\\)?>")))
775 (while (and (re-search-backward re nil t)
776 (eq (char-after (1+ (point))) ?/))
778 (sgml-skip-tag-backward 1)))
783 (defvar sgml-electric-tag-pair-overlays nil)
784 (defvar sgml-electric-tag-pair-timer nil)
786 (defun sgml-electric-tag-pair-before-change-function (beg end)
790 (skip-chars-backward "[:alnum:]-_.:")
791 (if (and ;; (<= (point) beg) ; This poses problems for downcase-word.
792 (or (eq (char-before) ?<)
793 (and (eq (char-before) ?/)
794 (eq (char-before (1- (point))) ?<)))
795 (null (get-char-property (point) 'text-clones)))
796 (let* ((endp (eq (char-before) ?/))
798 (cl-end (progn (skip-chars-forward "[:alnum:]-_.:") (point)))
801 (when (sgml-skip-tag-backward 1) (forward-char 1) t)
802 (with-syntax-table sgml-tag-syntax-table
804 (when (sgml-skip-tag-forward 1)
808 (clones (get-char-property (point) 'text-clones)))
811 (equal (buffer-substring cl-start cl-end)
812 (buffer-substring (point)
814 (skip-chars-forward "[:alnum:]-_.:")
816 (or (not endp) (eq (char-after cl-end) ?>)))
818 (message "sgml-electric-tag-pair-before-change-function: deleting old OLs")
819 (mapc 'delete-overlay clones))
820 (message "sgml-electric-tag-pair-before-change-function: new clone")
821 (text-clone-create cl-start cl-end 'spread "[[:alnum:]-_.:]+")
822 (setq sgml-electric-tag-pair-overlays
823 (append (get-char-property (point) 'text-clones)
824 sgml-electric-tag-pair-overlays))))))
826 (error (message "Error in sgml-electric-pair-mode: %s" err))))
828 (defun sgml-electric-tag-pair-flush-overlays ()
829 (while sgml-electric-tag-pair-overlays
830 (delete-overlay (pop sgml-electric-tag-pair-overlays))))
832 (define-minor-mode sgml-electric-tag-pair-mode
833 "Automatically update the closing tag when editing the opening one."
835 (if sgml-electric-tag-pair-mode
837 (add-hook 'before-change-functions
838 'sgml-electric-tag-pair-before-change-function
840 (unless sgml-electric-tag-pair-timer
841 (setq sgml-electric-tag-pair-timer
842 (run-with-idle-timer 5 'repeat 'sgml-electric-tag-pair-flush-overlays))))
843 (remove-hook 'before-change-functions
844 'sgml-electric-tag-pair-before-change-function
846 ;; We leave the timer running for other buffers.
850 (defun sgml-skip-tag-forward (arg)
851 "Skip to end of tag or matching closing tag if present.
852 With prefix argument ARG, repeat this ARG times.
853 Return t if after a closing tag."
855 ;; FIXME: Use sgml-get-context or something similar.
856 ;; It currently might jump to an unrelated </P> if the <P>
857 ;; we're skipping has no matching </P>.
859 (with-syntax-table sgml-tag-syntax-table
861 (skip-chars-forward "^<>")
862 (if (eq (following-char) ?>)
864 (if (looking-at "<\\([^/ \n\t>]+\\)\\([^>]*[^/>]\\)?>")
865 ;; start tag, skip any nested same pairs _and_ closing tag
866 (let ((case-fold-search t)
867 (re (concat "</?" (regexp-quote (match-string 1))
868 ;; Ignore empty tags like <foo/>.
869 "\\([^>]*[^/>]\\)?>"))
873 ;; FIXME: This re-search-forward will mistakenly match
874 ;; tag-like text inside attributes.
875 (while (and (re-search-forward re nil t)
877 (eq (char-after (1+ (match-beginning 0))) ?/)))
878 (goto-char (match-beginning 0))
879 (sgml-skip-tag-forward 1))
888 (defsubst sgml-looking-back-at (str)
889 "Return t if the test before point matches STR."
890 (let ((start (- (point) (length str))))
891 (and (>= start (point-min))
892 (equal str (buffer-substring-no-properties start (point))))))
894 (defun sgml-delete-tag (arg)
895 ;; FIXME: Should be called sgml-kill-tag or should not touch the kill-ring.
896 "Delete tag on or after cursor, and matching closing or opening tag.
897 With prefix argument ARG, repeat this ARG times."
902 (if (looking-at "[ \t\n]*<")
904 (if (eq (char-after (match-end 0)) ?/)
908 (goto-char (match-end 0))))
910 (or (save-excursion (setq close (sgml-beginning-of-tag)
911 close (and (stringp close)
912 (eq (aref close 0) ?/)
914 ;; not on closing tag
915 (let ((point (point)))
916 (sgml-skip-tag-backward 1)
917 (if (or (not (eq (following-char) ?<))
921 (error "Not on or before tag")))))
924 (sgml-skip-tag-backward 1)
929 (when (and (sgml-skip-tag-forward 1)
930 (not (sgml-looking-back-at "/>")))
932 ;; Delete any resulting empty line. If we didn't kill-sexp,
933 ;; this *should* do nothing, because we're right after the tag.
934 (if (progn (forward-line 0) (looking-at "\\(?:[ \t]*$\\)\n?"))
935 (delete-region (match-beginning 0) (match-end 0)))
938 (if (progn (forward-line 0) (looking-at "\\(?:[ \t]*$\\)\n?"))
939 (delete-region (match-beginning 0) (match-end 0)))))
940 (setq arg (1- arg))))
943 ;; Put read-only last to enable setting this even when read-only enabled.
944 (or (get 'sgml-tag 'invisible)
946 (append '(invisible t
947 point-entered sgml-point-entered
950 (symbol-plist 'sgml-tag))))
952 (defun sgml-tags-invisible (arg)
953 "Toggle visibility of existing tags."
955 (let ((modified (buffer-modified-p))
956 (inhibit-read-only t)
957 (inhibit-modification-hooks t)
958 ;; Avoid spurious the `file-locked' checks.
959 (buffer-file-name nil)
960 ;; This is needed in case font lock gets called,
961 ;; since it moves point and might call sgml-point-entered.
962 ;; How could it get called? -stef
963 (inhibit-point-motion-hooks t)
967 (goto-char (point-min))
968 (if (set (make-local-variable 'sgml-tags-invisible)
970 (>= (prefix-numeric-value arg) 0)
971 (not sgml-tags-invisible)))
972 (while (re-search-forward sgml-tag-name-re nil t)
974 (cdr (assq (intern-soft (downcase (match-string 1)))
976 (goto-char (match-beginning 0))
977 (and (stringp string)
978 (not (overlays-at (point)))
979 (let ((ol (make-overlay (point) (match-beginning 1))))
980 (overlay-put ol 'before-string string)
981 (overlay-put ol 'sgml-tag t)))
982 (put-text-property (point)
983 (progn (forward-list) (point))
984 'category 'sgml-tag))
985 (let ((pos (point-min)))
986 (while (< (setq pos (next-overlay-change pos)) (point-max))
987 (dolist (ol (overlays-at pos))
988 (if (overlay-get ol 'sgml-tag)
989 (delete-overlay ol)))))
990 (remove-text-properties (point-min) (point-max) '(category nil))))
991 (restore-buffer-modified-p modified))
992 (run-hooks 'sgml-tags-invisible-hook)
995 (defun sgml-point-entered (x y)
996 ;; Show preceding or following hidden tag, depending of cursor direction.
997 (let ((inhibit-point-motion-hooks t))
1000 (message "Invisible tag: %s"
1001 ;; Strip properties, otherwise, the text is invisible.
1002 (buffer-substring-no-properties
1004 (if (or (and (> x y)
1005 (not (eq (following-char) ?<)))
1007 (eq (preceding-char) ?>)))
1014 (defun sgml-validate (command)
1015 "Validate an SGML document.
1016 Runs COMMAND, a shell command, in a separate process asynchronously
1017 with output going to the buffer `*compilation*'.
1018 You can then use the command \\[next-error] to find the next error message
1019 and move to the line in the SGML document that caused it."
1021 (list (read-string "Validate command: "
1022 (or sgml-saved-validate-command
1023 (concat sgml-validate-command
1025 (shell-quote-argument
1026 (let ((name (buffer-file-name)))
1028 (file-name-nondirectory name)))))))))
1029 (setq sgml-saved-validate-command command)
1030 (save-some-buffers (not compilation-ask-about-save) nil)
1031 (compilation-start command))
1033 (defsubst sgml-at-indentation-p ()
1034 "Return true if point is at the first non-whitespace character on the line."
1036 (skip-chars-backward " \t")
1039 (defun sgml-lexical-context (&optional limit)
1040 "Return the lexical context at point as (TYPE . START).
1041 START is the location of the start of the lexical element.
1042 TYPE is one of `string', `comment', `tag', `cdata', `pi', or `text'.
1044 Optional argument LIMIT is the position to start parsing from.
1045 If nil, start from a preceding tag at indentation."
1051 ;; Skip tags backwards until we find one at indentation
1052 (while (and (ignore-errors (sgml-parse-tag-backward))
1053 (not (sgml-at-indentation-p)))))
1054 (with-syntax-table sgml-tag-syntax-table
1055 (while (< (point) pos)
1056 ;; When entering this loop we're inside text.
1057 (setq text-start (point))
1058 (skip-chars-forward "^<" pos)
1062 ;; We got to the end without seeing a tag.
1064 ((looking-at "<!\\[[A-Z]+\\[")
1065 ;; We've found a CDATA section or similar.
1066 (let ((cdata-start (point)))
1067 (unless (search-forward "]]>" pos 'move)
1068 (list 0 nil nil 'cdata nil nil nil nil cdata-start))))
1069 ((looking-at comment-start-skip)
1070 ;; parse-partial-sexp doesn't handle <!-- comments -->,
1071 ;; or only if ?- is in sgml-specials, so match explicitly
1072 (let ((start (point)))
1073 (unless (re-search-forward comment-end-skip pos 'move)
1074 (list 0 nil nil nil t nil nil nil start))))
1075 ((and sgml-xml-mode (looking-at "<\\?"))
1076 ;; Processing Instructions.
1077 ;; In SGML, it's basically a normal tag of the form
1078 ;; <?NAME ...> but in XML, it takes the form <? ... ?>.
1079 (let ((pi-start (point)))
1080 (unless (search-forward "?>" pos 'move)
1081 (list 0 nil nil 'pi nil nil nil nil pi-start))))
1083 ;; We've reached a tag. Parse it.
1084 ;; FIXME: Handle net-enabling start-tags
1085 (parse-partial-sexp (point) pos 0))))))
1087 ((memq (nth 3 state) '(cdata pi)) (cons (nth 3 state) (nth 8 state)))
1088 ((nth 3 state) (cons 'string (nth 8 state)))
1089 ((nth 4 state) (cons 'comment (nth 8 state)))
1090 ((and state (> (nth 0 state) 0)) (cons 'tag (nth 1 state)))
1091 (t (cons 'text text-start))))))
1093 (defun sgml-beginning-of-tag (&optional top-level)
1094 "Skip to beginning of tag and return its name.
1095 If this can't be done, return nil."
1096 (let ((context (sgml-lexical-context)))
1097 (if (eq (car context) 'tag)
1099 (goto-char (cdr context))
1100 (when (looking-at sgml-tag-name-re)
1101 (match-string-no-properties 1)))
1103 (when (not (eq (car context) 'text))
1104 (goto-char (cdr context))
1105 (sgml-beginning-of-tag t))))))
1107 (defun sgml-value (alist)
1108 "Interactively insert value taken from attribute-rule ALIST.
1109 See `sgml-tag-alist' for info about attribute rules."
1110 (setq alist (cdr alist))
1111 (if (stringp (car alist))
1112 (insert "=\"" (car alist) ?\")
1113 (if (and (eq (car alist) t) (not sgml-xml-mode))
1116 (setq alist (skeleton-read '(completing-read "Value: " (cdr alist))))
1117 (if (string< "" alist)
1119 (delete-backward-char 2)))
1122 (insert (skeleton-read '(completing-read "Value: " alist)))
1124 (insert (skeleton-read '(read-string "Value: ")))))
1127 (defun sgml-quote (start end &optional unquotep)
1128 "Quote SGML text in region START ... END.
1129 Only &, < and > are quoted, the rest is left untouched.
1130 With prefix argument UNQUOTEP, unquote the region."
1131 (interactive "r\nP")
1133 (narrow-to-region start end)
1134 (goto-char (point-min))
1136 ;; FIXME: We should unquote other named character references as well.
1137 (while (re-search-forward
1138 "\\(&\\(amp\\|\\(l\\|\\(g\\)\\)t\\)\\)[][<>&;\n\t \"%!'(),/=?]"
1140 (replace-match (if (match-end 4) ">" (if (match-end 3) "<" "&")) t t
1141 nil (if (eq (char-before (match-end 0)) ?\;) 0 1)))
1142 (while (re-search-forward "[&<>]" nil t)
1143 (replace-match (cdr (assq (char-before) '((?& . "&")
1148 (defun sgml-pretty-print (beg end)
1149 "Simple-minded pretty printer for SGML.
1150 Re-indents the code and inserts newlines between BEG and END.
1151 You might want to turn on `auto-fill-mode' to get better results."
1153 ;; - insert newline between some start-tag and text.
1154 ;; - don't insert newline in front of some end-tags.
1162 ;; Don't use narrowing because it screws up auto-indent.
1163 (setq end (copy-marker end t))
1164 (with-syntax-table sgml-tag-syntax-table
1165 (while (re-search-forward "<" end t)
1166 (goto-char (match-beginning 0))
1167 (unless (or ;;(looking-at "</")
1168 (progn (skip-chars-backward " \t") (bolp)))
1169 (reindent-then-newline-and-indent))
1171 ;; (indent-region beg end)
1177 (defstruct (sgml-tag
1178 (:constructor sgml-make-tag (type start end name)))
1179 type start end name)
1181 (defsubst sgml-parse-tag-name ()
1182 "Skip past a tag-name, and return the name."
1183 (buffer-substring-no-properties
1184 (point) (progn (skip-syntax-forward "w_") (point))))
1186 (defun sgml-tag-text-p (start end)
1187 "Return non-nil if text between START and END is a tag.
1188 Checks among other things that the tag does not contain spurious
1189 unquoted < or > chars inside, which would indicate that it
1190 really isn't a tag after all."
1192 (with-syntax-table sgml-tag-syntax-table
1193 (let ((pps (parse-partial-sexp start end 2)))
1194 (and (= (nth 0 pps) 0))))))
1196 (defun sgml-parse-tag-backward (&optional limit)
1197 "Parse an SGML tag backward, and return information about the tag.
1198 Assume that parsing starts from within a textual context.
1199 Leave point at the beginning of the tag."
1201 (let (tag-type tag-start tag-end name)
1202 (or (re-search-backward "[<>]" limit 'move)
1203 (error "No tag found"))
1204 (when (eq (char-after) ?<)
1205 ;; Oops!! Looks like we were not in a textual context after all!.
1206 ;; Let's try to recover.
1207 ;; Remember the tag-start so we don't need to look for it later.
1208 ;; This is not just an optimization but also makes sure we don't get
1209 ;; stuck in infloops in cases where "looking back for <" would not go
1211 (setq tag-start (point))
1212 (with-syntax-table sgml-tag-syntax-table
1213 (let ((pos (point)))
1215 ;; FIXME: This does not correctly skip over PI an CDATA tags.
1218 ;; This < seems to be just a spurious one, let's ignore it.
1220 (throw 'found (sgml-parse-tag-backward limit))))
1221 ;; Check it is really a tag, without any extra < or > inside.
1222 (unless (sgml-tag-text-p pos (point))
1224 (throw 'found (sgml-parse-tag-backward limit)))
1225 (forward-char -1))))
1226 (setq tag-end (1+ (point)))
1228 ((sgml-looking-back-at "--") ; comment
1229 (setq tag-type 'comment
1230 tag-start (or tag-start (search-backward "<!--" nil t))))
1231 ((sgml-looking-back-at "]]") ; cdata
1232 (setq tag-type 'cdata
1233 tag-start (or tag-start
1234 (re-search-backward "<!\\[[A-Z]+\\[" nil t))))
1235 ((sgml-looking-back-at "?") ; XML processing-instruction
1237 ;; IIUC: SGML processing instructions take the form <?foo ...>
1238 ;; i.e. a "normal" tag, handled below. In XML this is changed
1239 ;; to <?foo ... ?> where "..." can contain < and > and even <?
1240 ;; but not ?>. This means that when parsing backward, there's
1241 ;; no easy way to make sure that we find the real beginning of
1243 tag-start (or tag-start (search-backward "<?" nil t))))
1247 (with-syntax-table sgml-tag-syntax-table
1252 ;; This > isn't really the end of a tag. Skip it.
1253 (goto-char (1- tag-end))
1254 (throw 'found (sgml-parse-tag-backward limit))))
1256 (goto-char (1+ tag-start))
1258 (?! (setq tag-type 'decl)) ; declaration
1259 (?? (setq tag-type 'pi)) ; processing-instruction
1260 (?% (setq tag-type 'jsp)) ; JSP tags
1263 (setq tag-type 'close
1264 name (sgml-parse-tag-name)))
1265 (t ; open or empty tag
1266 (setq tag-type 'open
1267 name (sgml-parse-tag-name))
1268 (if (or (eq ?/ (char-before (- tag-end 1)))
1269 (sgml-empty-tag-p name))
1270 (setq tag-type 'empty))))))
1271 (goto-char tag-start)
1272 (sgml-make-tag tag-type tag-start tag-end name))))
1274 (defun sgml-get-context (&optional until)
1275 "Determine the context of the current position.
1276 By default, parse until we find a start-tag as the first thing on a line.
1277 If UNTIL is `empty', return even if the context is empty (i.e.
1278 we just skipped over some element and got to a beginning of line).
1280 The context is a list of tag-info structures. The last one is the tag
1281 immediately enclosing the current position.
1283 Point is assumed to be outside of any tag. If we discover that it's
1284 not the case, the first tag returned is the one inside which we are."
1285 (let ((here (point))
1290 ;; CONTEXT keeps track of the tag-stack
1291 ;; STACK keeps track of the end tags we've seen (and thus the start-tags
1292 ;; we'll have to ignore) when skipping over matching open..close pairs.
1293 ;; IGNORE is a list of tags that can be ignored because they have been
1294 ;; closed implicitly.
1295 (skip-chars-backward " \t\n") ; Make sure we're not at indentation.
1297 (and (not (eq until 'now))
1299 (not (if until (eq until 'empty) context))
1300 (not (sgml-at-indentation-p))
1302 (/= (point) (sgml-tag-start (car context)))
1303 (sgml-unclosed-tag-p (sgml-tag-name (car context)))))
1304 (setq tag-info (ignore-errors (sgml-parse-tag-backward))))
1306 ;; This tag may enclose things we thought were tags. If so,
1309 (> (sgml-tag-end tag-info)
1310 (sgml-tag-end (car context))))
1311 (setq context (cdr context)))
1314 ((> (sgml-tag-end tag-info) here)
1315 ;; Oops!! Looks like we were not outside of any tag, after all.
1316 (push tag-info context)
1320 ((eq (sgml-tag-type tag-info) 'open)
1323 (if (assoc-string (sgml-tag-name tag-info) ignore t)
1324 ;; There was an implicit end-tag.
1326 (push tag-info context)
1327 ;; We're changing context so the tags implicitly closed inside
1328 ;; the previous context aren't implicitly closed here any more.
1329 ;; [ Well, actually it depends, but we don't have the info about
1330 ;; when it doesn't and when it does. --Stef ]
1332 ((eq t (compare-strings (sgml-tag-name tag-info) nil nil
1333 (car stack) nil nil t))
1334 (setq stack (cdr stack)))
1336 ;; The open and close tags don't match.
1337 (if (not sgml-xml-mode)
1338 (unless (sgml-unclosed-tag-p (sgml-tag-name tag-info))
1339 (message "Unclosed tag <%s>" (sgml-tag-name tag-info))
1341 ;; We could just assume that the tag is simply not closed
1342 ;; but it's a bad assumption when tags *are* closed but
1343 ;; not properly nested.
1344 (while (and (cdr tmp)
1345 (not (eq t (compare-strings
1346 (sgml-tag-name tag-info) nil nil
1347 (cadr tmp) nil nil t))))
1348 (setq tmp (cdr tmp)))
1349 (if (cdr tmp) (setcdr tmp (cddr tmp)))))
1350 (message "Unmatched tags <%s> and </%s>"
1351 (sgml-tag-name tag-info) (pop stack)))))
1353 (if (and (null stack) (sgml-unclosed-tag-p (sgml-tag-name tag-info)))
1354 ;; This is a top-level open of an implicitly closed tag, so any
1355 ;; occurrence of such an open tag at the same level can be ignored
1356 ;; because it's been implicitly closed.
1357 (push (sgml-tag-name tag-info) ignore)))
1360 ((eq (sgml-tag-type tag-info) 'close)
1361 (if (sgml-empty-tag-p (sgml-tag-name tag-info))
1362 (message "Spurious </%s>: empty tag" (sgml-tag-name tag-info))
1363 (push (sgml-tag-name tag-info) stack)))
1369 (defun sgml-show-context (&optional full)
1370 "Display the current context.
1371 If FULL is non-nil, parse back to the beginning of the buffer."
1373 (with-output-to-temp-buffer "*XML Context*"
1375 (let ((context (sgml-get-context)))
1378 (while (setq more (sgml-get-context))
1379 (setq context (nconc more context)))))
1383 ;; Editing shortcuts
1385 (defun sgml-close-tag ()
1386 "Close current element.
1387 Depending on context, inserts a matching close-tag, or closes
1388 the current start-tag or the current comment or the current cdata, ..."
1390 (case (car (sgml-lexical-context))
1391 (comment (insert " -->"))
1392 (cdata (insert "]]>"))
1394 (jsp (insert " %>"))
1395 (tag (insert " />"))
1397 (let ((context (save-excursion (sgml-get-context))))
1400 (insert "</" (sgml-tag-name (car (last context))) ">")
1401 (indent-according-to-mode)))))
1403 (error "Nothing to close"))))
1405 (defun sgml-empty-tag-p (tag-name)
1406 "Return non-nil if TAG-NAME is an implicitly empty tag."
1407 (and (not sgml-xml-mode)
1408 (assoc-string tag-name sgml-empty-tags 'ignore-case)))
1410 (defun sgml-unclosed-tag-p (tag-name)
1411 "Return non-nil if TAG-NAME is a tag for which an end-tag is optional."
1412 (and (not sgml-xml-mode)
1413 (assoc-string tag-name sgml-unclosed-tags 'ignore-case)))
1416 (defun sgml-calculate-indent (&optional lcon)
1417 "Calculate the column to which this line should be indented.
1418 LCON is the lexical context, if any."
1419 (unless lcon (setq lcon (sgml-lexical-context)))
1421 ;; Indent comment-start markers inside <!-- just like comment-end markers.
1422 (if (and (eq (car lcon) 'tag)
1424 (save-excursion (goto-char (cdr lcon)) (looking-at "<!--")))
1425 (setq lcon (cons 'comment (+ (cdr lcon) 2))))
1430 ;; Go back to previous non-empty line.
1431 (while (and (> (point) (cdr lcon))
1432 (zerop (forward-line -1))
1433 (looking-at "[ \t]*$")))
1434 (if (> (point) (cdr lcon))
1435 ;; Previous line is inside the string.
1436 (current-indentation)
1437 (goto-char (cdr lcon))
1438 (1+ (current-column))))
1441 (let ((mark (looking-at "--")))
1442 ;; Go back to previous non-empty line.
1443 (while (and (> (point) (cdr lcon))
1444 (zerop (forward-line -1))
1445 (or (looking-at "[ \t]*$")
1446 (if mark (not (looking-at "[ \t]*--"))))))
1447 (if (> (point) (cdr lcon))
1448 ;; Previous line is inside the comment.
1449 (skip-chars-forward " \t")
1450 (goto-char (cdr lcon))
1451 ;; Skip `<!' to get to the `--' with which we want to align.
1452 (search-forward "--")
1453 (goto-char (match-beginning 0)))
1454 (when (and (not mark) (looking-at "--"))
1455 (forward-char 2) (skip-chars-forward " \t"))
1458 ;; We don't know how to indent it. Let's be honest about it.
1460 ;; We don't know how to indent it. Let's be honest about it.
1464 (goto-char (1+ (cdr lcon)))
1465 (skip-chars-forward "^ \t\n") ;Skip tag name.
1466 (skip-chars-forward " \t")
1469 ;; This is the first attribute: indent.
1470 (goto-char (1+ (cdr lcon)))
1471 (+ (current-column) sgml-basic-offset)))
1474 (while (looking-at "</")
1476 (skip-chars-forward " \t"))
1477 (let* ((here (point))
1478 (unclosed (and ;; (not sgml-xml-mode)
1479 (looking-at sgml-tag-name-re)
1480 (assoc-string (match-string 1)
1481 sgml-unclosed-tags 'ignore-case)
1484 ;; If possible, align on the previous non-empty text line.
1485 ;; Otherwise, do a more serious parsing to find the
1486 ;; tag(s) relative to which we should be indenting.
1487 (if (and (not unclosed) (skip-chars-backward " \t")
1488 (< (skip-chars-backward " \t\n") 0)
1489 (back-to-indentation)
1490 (> (point) (cdr lcon)))
1493 (nreverse (sgml-get-context (if unclosed nil 'empty)))))
1495 ;; Ignore previous unclosed start-tag in context.
1496 (while (and context unclosed
1497 (eq t (compare-strings
1498 (sgml-tag-name (car context)) nil nil
1499 unclosed nil nil t)))
1500 (setq context (cdr context)))
1501 ;; Indent to reflect nesting.
1503 ;; If we were not in a text context after all, let's try again.
1504 ((and context (> (sgml-tag-end (car context)) here))
1506 (sgml-calculate-indent
1507 (cons (if (memq (sgml-tag-type (car context)) '(comment cdata))
1508 (sgml-tag-type (car context)) 'tag)
1509 (sgml-tag-start (car context)))))
1510 ;; Align on the first element after the nearest open-tag, if any.
1512 (goto-char (sgml-tag-end (car context)))
1513 (skip-chars-forward " \t\n")
1514 (< (point) here) (sgml-at-indentation-p))
1519 (* sgml-basic-offset (length context)))))))
1522 (error "Unrecognized context %s" (car lcon)))
1526 (defun sgml-indent-line ()
1527 "Indent the current line as SGML."
1529 (let* ((savep (point))
1532 (back-to-indentation)
1533 (if (>= (point) savep) (setq savep nil))
1534 (sgml-calculate-indent))))
1535 (if (null indent-col)
1538 (save-excursion (indent-line-to indent-col))
1539 (indent-line-to indent-col)))))
1541 (defun sgml-guess-indent ()
1542 "Guess an appropriate value for `sgml-basic-offset'.
1543 Base the guessed identation level on the first indented tag in the buffer.
1544 Add this to `sgml-mode-hook' for convenience."
1547 (goto-char (point-min))
1548 (if (re-search-forward "^\\([ \t]+\\)<" 500 'noerror)
1550 (set (make-local-variable 'sgml-basic-offset)
1551 (1- (current-column)))
1552 (message "Guessed sgml-basic-offset = %d"
1556 (defun sgml-parse-dtd ()
1557 "Simplistic parse of the current buffer as a DTD.
1558 Currently just returns (EMPTY-TAGS UNCLOSED-TAGS)."
1559 (goto-char (point-min))
1562 (while (re-search-forward "<!ELEMENT[ \t\n]+\\([^ \t\n]+\\)[ \t\n]+[-O][ \t\n]+\\([-O]\\)[ \t\n]+\\([^ \t\n]+\\)" nil t)
1564 ((string= (match-string 3) "EMPTY")
1565 (push (match-string-no-properties 1) empty))
1566 ((string= (match-string 2) "O")
1567 (push (match-string-no-properties 1) unclosed))))
1568 (setq empty (sort (mapcar 'downcase empty) 'string<))
1569 (setq unclosed (sort (mapcar 'downcase unclosed) 'string<))
1570 (list empty unclosed)))
1574 (defcustom html-mode-hook nil
1575 "Hook run by command `html-mode'.
1576 `text-mode-hook' and `sgml-mode-hook' are run first."
1579 :options '(html-autoview-mode))
1581 (defvar html-quick-keys sgml-quick-keys
1582 "Use C-c X combinations for quick insertion of frequent tags when non-nil.
1583 This defaults to `sgml-quick-keys'.
1584 This takes effect when first loading the library.")
1586 (defvar html-mode-map
1587 (let ((map (make-sparse-keymap))
1588 (menu-map (make-sparse-keymap "HTML")))
1589 (set-keymap-parent map sgml-mode-map)
1590 (define-key map "\C-c6" 'html-headline-6)
1591 (define-key map "\C-c5" 'html-headline-5)
1592 (define-key map "\C-c4" 'html-headline-4)
1593 (define-key map "\C-c3" 'html-headline-3)
1594 (define-key map "\C-c2" 'html-headline-2)
1595 (define-key map "\C-c1" 'html-headline-1)
1596 (define-key map "\C-c\r" 'html-paragraph)
1597 (define-key map "\C-c\n" 'html-line)
1598 (define-key map "\C-c\C-c-" 'html-horizontal-rule)
1599 (define-key map "\C-c\C-co" 'html-ordered-list)
1600 (define-key map "\C-c\C-cu" 'html-unordered-list)
1601 (define-key map "\C-c\C-cr" 'html-radio-buttons)
1602 (define-key map "\C-c\C-cc" 'html-checkboxes)
1603 (define-key map "\C-c\C-cl" 'html-list-item)
1604 (define-key map "\C-c\C-ch" 'html-href-anchor)
1605 (define-key map "\C-c\C-cn" 'html-name-anchor)
1606 (define-key map "\C-c\C-ci" 'html-image)
1607 (when html-quick-keys
1608 (define-key map "\C-c-" 'html-horizontal-rule)
1609 (define-key map "\C-co" 'html-ordered-list)
1610 (define-key map "\C-cu" 'html-unordered-list)
1611 (define-key map "\C-cr" 'html-radio-buttons)
1612 (define-key map "\C-cc" 'html-checkboxes)
1613 (define-key map "\C-cl" 'html-list-item)
1614 (define-key map "\C-ch" 'html-href-anchor)
1615 (define-key map "\C-cn" 'html-name-anchor)
1616 (define-key map "\C-ci" 'html-image))
1617 (define-key map "\C-c\C-s" 'html-autoview-mode)
1618 (define-key map "\C-c\C-v" 'browse-url-of-buffer)
1619 (define-key map [menu-bar html] (cons "HTML" menu-map))
1620 (define-key menu-map [html-autoview-mode]
1621 '("Toggle Autoviewing" . html-autoview-mode))
1622 (define-key menu-map [browse-url-of-buffer]
1623 '("View Buffer Contents" . browse-url-of-buffer))
1624 (define-key menu-map [nil] '("--"))
1625 ;;(define-key menu-map "6" '("Heading 6" . html-headline-6))
1626 ;;(define-key menu-map "5" '("Heading 5" . html-headline-5))
1627 ;;(define-key menu-map "4" '("Heading 4" . html-headline-4))
1628 (define-key menu-map "3" '("Heading 3" . html-headline-3))
1629 (define-key menu-map "2" '("Heading 2" . html-headline-2))
1630 (define-key menu-map "1" '("Heading 1" . html-headline-1))
1631 (define-key menu-map "l" '("Radio Buttons" . html-radio-buttons))
1632 (define-key menu-map "c" '("Checkboxes" . html-checkboxes))
1633 (define-key menu-map "l" '("List Item" . html-list-item))
1634 (define-key menu-map "u" '("Unordered List" . html-unordered-list))
1635 (define-key menu-map "o" '("Ordered List" . html-ordered-list))
1636 (define-key menu-map "-" '("Horizontal Rule" . html-horizontal-rule))
1637 (define-key menu-map "\n" '("Line Break" . html-line))
1638 (define-key menu-map "\r" '("Paragraph" . html-paragraph))
1639 (define-key menu-map "i" '("Image" . html-image))
1640 (define-key menu-map "h" '("Href Anchor" . html-href-anchor))
1641 (define-key menu-map "n" '("Name Anchor" . html-name-anchor))
1643 "Keymap for commands for use in HTML mode.")
1645 (defvar html-face-tag-alist
1650 "Value of `sgml-face-tag-alist' for HTML mode.")
1652 (defvar html-tag-face-alist
1655 ("blink" . highlight)
1658 ("h1" bold underline)
1659 ("h2" bold-italic underline)
1660 ("h3" italic underline)
1669 ("title" bold underline)
1673 "Value of `sgml-tag-face-alist' for HTML mode.")
1675 (defvar html-display-text
1679 "Value of `sgml-display-text' for HTML mode.")
1682 ;; should code exactly HTML 3 here when that is finished
1683 (defvar html-tag-alist
1684 (let* ((1-7 '(("1") ("2") ("3") ("4") ("5") ("6") ("7")))
1685 (1-9 `(,@1-7 ("8") ("9")))
1686 (align '(("align" ("left") ("center") ("right"))))
1687 (valign '(("top") ("middle") ("bottom") ("baseline")))
1688 (rel '(("next") ("previous") ("parent") ("subdocument") ("made")))
1689 (href '("href" ("ftp:") ("file:") ("finger:") ("gopher:") ("http:")
1690 ("mailto:") ("news:") ("rlogin:") ("telnet:") ("tn3270:")
1691 ("wais:") ("/cgi-bin/")))
1697 (list '((nil \n ("List item: " "<li>" str
1698 (if sgml-xml-mode "</li>") \n))))
1705 ;; put ,-expressions first, else byte-compile chokes (as of V19.29)
1706 ;; and like this it's more efficient anyway
1707 `(("a" ,name ,@link)
1710 ("font" nil "size" ("-1") ("+1") ("-2") ("+2") ,@1-7)
1711 ("form" (\n _ \n "<input type=\"submit\" value=\"\""
1712 (if sgml-xml-mode " />" ">"))
1713 ("action" ,@(cdr href)) ("method" ("get") ("post")))
1720 ("hr" t ("size" ,@1-9) ("width") ("noshade" t) ,@align)
1721 ("img" t ("align" ,@valign ("texttop") ("absmiddle") ("absbottom"))
1722 ("src") ("alt") ("width" "1") ("height" "1")
1723 ("border" "1") ("vspace" "1") ("hspace" "1") ("ismap" t))
1724 ("input" t ("size" ,@1-9) ("maxlength" ,@1-9) ("checked" t) ,name
1725 ("type" ("text") ("password") ("checkbox") ("radio")
1726 ("submit") ("reset"))
1730 ("ol" ,@list ("type" ("A") ("a") ("I") ("i") ("1")))
1734 "<option>" str (if sgml-xml-mode "</option>") \n))
1735 ,name ("size" ,@1-9) ("multiple" t))
1737 ((completing-read "Cell kind: " '(("td") ("th"))
1740 (if sgml-xml-mode (concat "<" str "></tr>")) \n))
1741 ("border" t ,@1-9) ("width" "10") ("cellpadding"))
1743 ("textarea" ,name ("rows" ,@1-9) ("cols" ,@1-9))
1745 ("ul" ,@list ("type" ("disc") ("circle") ("square")))
1753 ("Item: " "<item>" str (if sgml-xml-mode "</item>") \n))
1760 ("body" \n ("background" ".gif") ("bgcolor" "#") ("text" "#")
1761 ("link" "#") ("alink" "#") ("vlink" "#"))
1762 ("box" (nil _ "<over>" _ (if sgml-xml-mode "</over>")))
1763 ("br" t ("clear" ("left") ("right")))
1764 ("caption" ("valign" ("top") ("bottom")))
1768 ("dd" ,(not sgml-xml-mode))
1774 "<dt>" str (if sgml-xml-mode "</dt>")
1775 "<dd>" _ (if sgml-xml-mode "</dd>") \n)))
1776 ("dt" (t _ (if sgml-xml-mode "</dt>")
1777 "<dd>" (if sgml-xml-mode "</dd>") \n))
1779 ("fn" "id" "fn") ;; Footnotes were deprecated in HTML 3.2
1783 "<title>" (setq str (read-input "Title: ")) "</title>\n"
1785 "<body>\n<h1>" str "</h1>\n" _
1786 "\n<address>\n<a href=\"mailto:"
1788 "\">" (user-full-name) "</a>\n</address>\n"
1793 ("isindex" t ("action") ("prompt"))
1796 ("li" ,(not sgml-xml-mode))
1799 ("option" t ("value") ("label") ("selected" t))
1801 ("person") ;; Tag for person's name tag deprecated in HTML 3.2
1828 "*Value of `sgml-tag-alist' for HTML mode.")
1830 (defvar html-tag-help
1832 ("a" . "Anchor of point or link elsewhere")
1833 ("abbrev" . "Abbreviation")
1834 ("acronym" . "Acronym")
1835 ("address" . "Formatted mail address")
1836 ("array" . "Math array")
1839 ("base" . "Base address for URLs")
1840 ("big" . "Font size")
1841 ("blink" . "Blinking text")
1842 ("blockquote" . "Indented quotation")
1843 ("body" . "Document body")
1844 ("box" . "Math fraction")
1845 ("br" . "Line break")
1846 ("caption" . "Table caption")
1847 ("center" . "Centered text")
1848 ("changed" . "Change bars")
1849 ("cite" . "Citation of a document")
1850 ("code" . "Formatted source code")
1851 ("dd" . "Definition of term")
1852 ("del" . "Deleted text")
1853 ("dfn" . "Defining instance of a term")
1854 ("dir" . "Directory list (obsolete)")
1855 ("div" . "Generic block-level container")
1856 ("dl" . "Definition list")
1857 ("dt" . "Term to be definined")
1858 ("em" . "Emphasized")
1859 ("embed" . "Embedded data in foreign format")
1861 ("figa" . "Figure anchor")
1862 ("figd" . "Figure description")
1863 ("figt" . "Figure text")
1864 ("fn" . "Footnote") ;; No one supports special footnote rendering.
1865 ("font" . "Font size")
1866 ("form" . "Form with input fields")
1867 ("group" . "Document grouping")
1868 ("h1" . "Most important section headline")
1869 ("h2" . "Important section headline")
1870 ("h3" . "Section headline")
1871 ("h4" . "Minor section headline")
1872 ("h5" . "Unimportant section headline")
1873 ("h6" . "Least important section headline")
1874 ("head" . "Document header")
1875 ("hr" . "Horizontal rule")
1876 ("html" . "HTML Document")
1877 ("i" . "Italic face")
1878 ("img" . "Graphic image")
1879 ("input" . "Form input field")
1880 ("ins" . "Inserted text")
1881 ("isindex" . "Input field for index search")
1882 ("kbd" . "Keybard example face")
1883 ("lang" . "Natural language")
1884 ("li" . "List item")
1885 ("link" . "Link relationship")
1886 ("math" . "Math formula")
1887 ("menu" . "Menu list (obsolete)")
1888 ("mh" . "Form mail header")
1889 ("nextid" . "Allocate new id")
1890 ("nobr" . "Text without line break")
1891 ("ol" . "Ordered list")
1892 ("option" . "Selection list item")
1893 ("over" . "Math fraction rule")
1894 ("p" . "Paragraph start")
1895 ("panel" . "Floating panel")
1896 ("person" . "Person's name")
1897 ("pre" . "Preformatted fixed width text")
1899 ("rev" . "Reverse video")
1901 ("samp" . "Sample text")
1902 ("select" . "Selection list")
1903 ("small" . "Font size")
1904 ("sp" . "Nobreak space")
1905 ("span" . "Generic inline container")
1906 ("strong" . "Standout text")
1907 ("sub" . "Subscript")
1908 ("sup" . "Superscript")
1909 ("table" . "Table with rows and columns")
1910 ("tb" . "Table vertical break")
1911 ("td" . "Table data cell")
1912 ("textarea" . "Form multiline edit area")
1913 ("th" . "Table header cell")
1914 ("title" . "Document title")
1915 ("tr" . "Table row separator")
1916 ("tt" . "Typewriter face")
1917 ("u" . "Underlined text")
1918 ("ul" . "Unordered list")
1919 ("var" . "Math variable face")
1920 ("wbr" . "Enable <br> within <nobr>"))
1921 "*Value of `sgml-tag-help' for HTML mode.")
1925 (define-derived-mode html-mode sgml-mode '(sgml-xml-mode "XHTML" "HTML")
1926 "Major mode based on SGML mode for editing HTML documents.
1927 This allows inserting skeleton constructs used in hypertext documents with
1928 completion. See below for an introduction to HTML. Use
1929 \\[browse-url-of-buffer] to see how this comes out. See also `sgml-mode' on
1930 which this is based.
1932 Do \\[describe-variable] html- SPC and \\[describe-variable] sgml- SPC to see available variables.
1934 To write fairly well formatted pages you only need to know few things. Most
1935 browsers have a function to read the source code of the page being seen, so
1936 you can imitate various tricks. Here's a very short HTML primer which you
1937 can also view with a browser to see what happens:
1939 <title>A Title Describing Contents</title> should be on every page. Pages can
1940 have <h1>Very Major Headlines</h1> through <h6>Very Minor Headlines</h6>
1941 <hr> Parts can be separated with horizontal rules.
1943 <p>Paragraphs only need an opening tag. Line breaks and multiple spaces are
1944 ignored unless the text is <pre>preformatted.</pre> Text can be marked as
1945 <b>bold</b>, <i>italic</i> or <u>underlined</u> using the normal M-o or
1946 Edit/Text Properties/Face commands.
1948 Pages can have <a name=\"SOMENAME\">named points</a> and can link other points
1949 to them with <a href=\"#SOMENAME\">see also somename</a>. In the same way <a
1950 href=\"URL\">see also URL</a> where URL is a filename relative to current
1951 directory, or absolute as in `http://www.cs.indiana.edu/elisp/w3/docs.html'.
1953 Images in many formats can be inlined with <img src=\"URL\">.
1955 If you mainly create your own documents, `sgml-specials' might be
1956 interesting. But note that some HTML 2 browsers can't handle `''.
1957 To work around that, do:
1958 (eval-after-load \"sgml-mode\" '(aset sgml-char-names ?' nil))
1961 (set (make-local-variable 'sgml-display-text) html-display-text)
1962 (set (make-local-variable 'sgml-tag-face-alist) html-tag-face-alist)
1963 (make-local-variable 'sgml-tag-alist)
1964 (make-local-variable 'sgml-face-tag-alist)
1965 (make-local-variable 'sgml-tag-help)
1966 (make-local-variable 'outline-regexp)
1967 (make-local-variable 'outline-heading-end-regexp)
1968 (make-local-variable 'outline-level)
1969 (make-local-variable 'sentence-end-base)
1970 (setq sentence-end-base "[.?!][]\"'”)}]*\\(<[^>]*>\\)*"
1971 sgml-tag-alist html-tag-alist
1972 sgml-face-tag-alist html-face-tag-alist
1973 sgml-tag-help html-tag-help
1974 outline-regexp "^.*<[Hh][1-6]\\>"
1975 outline-heading-end-regexp "</[Hh][1-6]>"
1976 outline-level (lambda ()
1977 (char-before (match-end 0))))
1978 (setq imenu-create-index-function 'html-imenu-index)
1979 (set (make-local-variable 'sgml-empty-tags)
1980 ;; From HTML-4.01's loose.dtd, parsed with `sgml-parse-dtd',
1981 ;; plus manual addition of "wbr".
1982 '("area" "base" "basefont" "br" "col" "frame" "hr" "img" "input"
1983 "isindex" "link" "meta" "param" "wbr"))
1984 (set (make-local-variable 'sgml-unclosed-tags)
1985 ;; From HTML-4.01's loose.dtd, parsed with `sgml-parse-dtd'.
1986 '("body" "colgroup" "dd" "dt" "head" "html" "li" "option"
1987 "p" "tbody" "td" "tfoot" "th" "thead" "tr"))
1988 ;; It's for the user to decide if it defeats it or not -stef
1989 ;; (make-local-variable 'imenu-sort-function)
1990 ;; (setq imenu-sort-function nil) ; sorting the menu defeats the purpose
1993 (defvar html-imenu-regexp
1994 "\\s-*<h\\([1-9]\\)[^\n<>]*>\\(<[^\n<>]*>\\)*\\s-*\\([^\n<>]*\\)"
1995 "*A regular expression matching a head line to be added to the menu.
1996 The first `match-string' should be a number from 1-9.
1997 The second `match-string' matches extra tags and is ignored.
1998 The third `match-string' will be the used in the menu.")
2000 (defun html-imenu-index ()
2001 "Return a table of contents for an HTML buffer for use with Imenu."
2004 (goto-char (point-min))
2005 (while (re-search-forward html-imenu-regexp nil t)
2007 (cons (cons (concat (make-string
2008 (* 2 (1- (string-to-number (match-string 1))))
2011 (line-beginning-position))
2013 (nreverse toc-index)))
2015 (define-minor-mode html-autoview-mode
2016 "Toggle automatic viewing via `browse-url-of-buffer' upon saving buffer.
2017 With positive prefix ARG always turns viewing on, with negative ARG always off.
2018 Can be used as a value for `html-mode-hook'."
2021 (if html-autoview-mode
2022 (add-hook 'after-save-hook 'browse-url-of-buffer nil t)
2023 (remove-hook 'after-save-hook 'browse-url-of-buffer t)))
2026 (define-skeleton html-href-anchor
2027 "HTML anchor tag with href attribute."
2029 ;; '(setq input "http:")
2030 "<a href=\"" str "\">" _ "</a>")
2032 (define-skeleton html-name-anchor
2033 "HTML anchor tag with name attribute."
2035 "<a name=\"" str "\""
2036 (if sgml-xml-mode (concat " id=\"" str "\""))
2039 (define-skeleton html-headline-1
2040 "HTML level 1 headline tags."
2044 (define-skeleton html-headline-2
2045 "HTML level 2 headline tags."
2049 (define-skeleton html-headline-3
2050 "HTML level 3 headline tags."
2054 (define-skeleton html-headline-4
2055 "HTML level 4 headline tags."
2059 (define-skeleton html-headline-5
2060 "HTML level 5 headline tags."
2064 (define-skeleton html-headline-6
2065 "HTML level 6 headline tags."
2069 (define-skeleton html-horizontal-rule
2070 "HTML horizontal rule tag."
2072 (if sgml-xml-mode "<hr />" "<hr>") \n)
2074 (define-skeleton html-image
2077 "<img src=\"" str "\" alt=\"" _ "\""
2078 (if sgml-xml-mode " />" ">"))
2080 (define-skeleton html-line
2081 "HTML line break tag."
2083 (if sgml-xml-mode "<br />" "<br>") \n)
2085 (define-skeleton html-ordered-list
2086 "HTML ordered list tags."
2089 "<li>" _ (if sgml-xml-mode "</li>") \n
2092 (define-skeleton html-unordered-list
2093 "HTML unordered list tags."
2096 "<li>" _ (if sgml-xml-mode "</li>") \n
2099 (define-skeleton html-list-item
2100 "HTML list item tag."
2103 "<li>" _ (if sgml-xml-mode "</li>"))
2105 (define-skeleton html-paragraph
2106 "HTML paragraph tag."
2109 "<p>" _ (if sgml-xml-mode "</p>"))
2111 (define-skeleton html-checkboxes
2112 "Group of connected checkbox inputs."
2117 "<input type=\"" (identity "checkbox") ; see comment above about identity
2118 "\" name=\"" (or v1 (setq v1 (skeleton-read "Name: ")))
2119 "\" value=\"" str ?\"
2120 (when (y-or-n-p "Set \"checked\" attribute? ")
2121 (funcall skeleton-transformation-function
2122 (if sgml-xml-mode " checked=\"checked\"" " checked")))
2123 (if sgml-xml-mode " />" ">")
2124 (skeleton-read "Text: " (capitalize str))
2125 (or v2 (setq v2 (if (y-or-n-p "Newline after text? ")
2126 (funcall skeleton-transformation-function
2127 (if sgml-xml-mode "<br />" "<br>"))
2131 (define-skeleton html-radio-buttons
2132 "Group of connected radio button inputs."
2137 "<input type=\"" (identity "radio") ; see comment above about identity
2138 "\" name=\"" (or (car v2) (setcar v2 (skeleton-read "Name: ")))
2139 "\" value=\"" str ?\"
2140 (when (and (not v1) (setq v1 (y-or-n-p "Set \"checked\" attribute? ")))
2141 (funcall skeleton-transformation-function
2142 (if sgml-xml-mode " checked=\"checked\"" " checked")))
2143 (if sgml-xml-mode " />" ">")
2144 (skeleton-read "Text: " (capitalize str))
2145 (or (cdr v2) (setcdr v2 (if (y-or-n-p "Newline after text? ")
2146 (funcall skeleton-transformation-function
2147 (if sgml-xml-mode "<br />" "<br>"))
2151 (provide 'sgml-mode)
2153 ;; arch-tag: 9675da94-b7f9-4bda-ad19-73ed7b4fb401
2154 ;;; sgml-mode.el ends here