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1 | ;;; nxml-mode.el --- a new XML mode |
2 | ||
3 | ;; Copyright (C) 2003, 2004 Free Software Foundation, Inc. | |
4 | ||
5 | ;; Author: James Clark | |
6 | ;; Keywords: XML | |
7 | ||
8 | ;; This program is free software; you can redistribute it and/or | |
9 | ;; modify it under the terms of the GNU General Public License as | |
10 | ;; published by the Free Software Foundation; either version 2 of | |
11 | ;; the License, or (at your option) any later version. | |
12 | ||
13 | ;; This program is distributed in the hope that it will be | |
14 | ;; useful, but WITHOUT ANY WARRANTY; without even the implied | |
15 | ;; warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR | |
16 | ;; PURPOSE. See the GNU General Public License for more details. | |
17 | ||
18 | ;; You should have received a copy of the GNU General Public | |
19 | ;; License along with this program; if not, write to the Free | |
20 | ;; Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
21 | ;; MA 02111-1307 USA | |
22 | ||
23 | ;;; Commentary: | |
24 | ||
25 | ;; To use this include rng-auto.el in your .emacs. | |
26 | ||
27 | ;; See nxml-rap.el for description of parsing strategy. | |
28 | ||
29 | ;; The font locking here is independent of font-lock.el. We want to | |
30 | ;; do more sophisticated handling of changes and we want to use the | |
31 | ;; same xmltok rather than regexps for parsing so that we parse | |
32 | ;; consistently and correctly. | |
33 | ||
34 | ;;; Code: | |
35 | ||
36 | (when (featurep 'mucs) | |
37 | (error "nxml-mode is not compatible with Mule-UCS")) | |
38 | ||
39 | (require 'xmltok) | |
40 | (require 'nxml-enc) | |
41 | (require 'nxml-glyph) | |
42 | (require 'nxml-util) | |
43 | (require 'nxml-rap) | |
44 | (require 'nxml-outln) | |
45 | ||
46 | ;;; Customization | |
47 | ||
48 | (defgroup nxml nil | |
49 | "New XML editing mode" | |
50 | :group 'languages | |
51 | :group 'wp) | |
52 | ||
53 | (defgroup nxml-highlighting-faces nil | |
54 | "Faces for XML syntax highlighting." | |
55 | :group 'nxml | |
56 | :group 'font-lock-highlighting-faces) | |
57 | ||
58 | (defcustom nxml-syntax-highlight-flag t | |
59 | "*Non-nil means nxml-mode should perform syntax highlighting." | |
60 | :group 'nxml | |
61 | :type 'boolean) | |
62 | ||
63 | (defcustom nxml-char-ref-display-glyph-flag t | |
64 | "*Non-nil means display glyph following character reference. | |
65 | The glyph is displayed in `nxml-glyph-face'. The hook | |
66 | `nxml-glyph-set-hook' can be used to customize for which characters | |
67 | glyphs are displayed." | |
68 | :group 'nxml | |
69 | :type 'boolean) | |
70 | ||
71 | (defcustom nxml-mode-hook nil | |
72 | "Hook run by command `nxml-mode'." | |
73 | :group 'nxml | |
74 | :type 'hook) | |
75 | ||
76 | (defcustom nxml-sexp-element-flag nil | |
77 | "*Non-nil means sexp commands treat an element as a single expression." | |
78 | :group 'nxml | |
79 | :type 'boolean) | |
80 | ||
81 | (defcustom nxml-slash-auto-complete-flag nil | |
82 | "*Non-nil means typing a slash automatically completes the end-tag. | |
83 | This is used by `nxml-electric-slash'." | |
84 | :group 'nxml | |
85 | :type 'boolean) | |
86 | ||
87 | (defcustom nxml-child-indent 2 | |
88 | "*Indentation for the children of an element relative to the start-tag. | |
89 | This only applies when the line or lines containing the start-tag contains | |
90 | nothing else other than that start-tag." | |
91 | :group 'nxml | |
92 | :type 'integer) | |
93 | ||
94 | (defcustom nxml-attribute-indent 4 | |
95 | "*Indentation for the attributes of an element relative to the start-tag. | |
96 | This only applies when the first attribute of a tag starts a line. In other | |
97 | cases, the first attribute on one line is indented the same as the first | |
98 | attribute on the previous line." | |
99 | :group 'nxml | |
100 | :type 'integer) | |
101 | ||
102 | (defvar nxml-fontify-chunk-size 500) | |
103 | ||
104 | (defcustom nxml-bind-meta-tab-to-complete-flag (not window-system) | |
105 | "*Non-nil means bind M-TAB in `nxml-mode-map' to `nxml-complete'. | |
106 | C-return will be bound to `nxml-complete' in any case. | |
107 | M-TAB gets swallowed by many window systems/managers, and | |
108 | `documentation' will show M-TAB rather than C-return as the | |
109 | binding `rng-complete' when both are bound. So it's better | |
110 | to bind M-TAB only when it will work." | |
111 | :group 'nxml | |
112 | :set (lambda (sym flag) | |
113 | (set-default sym flag) | |
114 | (when (and (boundp 'nxml-mode-map) nxml-mode-map) | |
115 | (define-key nxml-mode-map "\M-\t" (and flag 'nxml-complete)))) | |
116 | :type 'boolean) | |
117 | ||
118 | (defcustom nxml-prefer-utf-16-to-utf-8-flag nil | |
119 | "*Non-nil means prefer UTF-16 to UTF-8 when saving a buffer. | |
120 | This is used only when a buffer does not contain an encoding declaration | |
121 | and when its current `buffer-file-coding-system' specifies neither UTF-16 | |
122 | nor UTF-8." | |
123 | :group 'nxml | |
124 | :type 'boolean) | |
125 | ||
126 | (defcustom nxml-prefer-utf-16-little-to-big-endian-flag (eq system-type | |
127 | 'windows-nt) | |
128 | "*Non-nil means prefer little-endian to big-endian byte-order for UTF-16. | |
129 | This is used only for saving a buffer; when reading the byte-order is | |
130 | auto-detected. It may be relevant both when there is no encoding declaration | |
131 | and when the encoding declaration specifies `UTF-16'." | |
132 | :group 'nxml | |
133 | :type 'boolean) | |
134 | ||
135 | (defcustom nxml-default-buffer-file-coding-system nil | |
136 | "*Default value for `buffer-file-coding-system' for a buffer for a new file. | |
137 | Nil means use the default value of `buffer-file-coding-system' as normal. | |
138 | A buffer's `buffer-file-coding-system' affects what \\[nxml-insert-xml-declaration] inserts." | |
139 | :group 'nxml | |
140 | :type 'coding-system) | |
141 | ||
142 | (defcustom nxml-auto-insert-xml-declaration-flag nil | |
143 | "*Non-nil means automatically insert an XML declaration in a new file. | |
144 | The XML declaration is inserted using `nxml-insert-xml-declaration'." | |
145 | :group 'nxml | |
146 | :type 'boolean) | |
147 | ||
148 | ;; The following are the colors we use with a light background. | |
149 | ;; The two blues have the same hue but contrasting saturation/value. | |
150 | ;; The hue of the green is 120 degrees different from that of the | |
151 | ;; blue. The red used for highlighting errors is 120 degrees | |
152 | ;; different again. We use the light blue only for refs and | |
153 | ;; delimiters, since these are short (long stretches in a light color | |
154 | ;; would be too hard to read). The dark blue is closest to black | |
155 | ;; (which we use by default for text), so we use it for attribute | |
156 | ;; values, which are similar to text. | |
157 | ||
158 | (defconst nxml-light-blue-color "#9292C9") ; hue 240 | |
159 | (defconst nxml-dark-blue-color "#3A3A7B") ; hue 240 | |
160 | (defconst nxml-green-color "#257A25") ; hue 120 | |
161 | ||
162 | ;; Similar principles apply with a dark background. However, | |
163 | ;; we switch green and blue, because darker blues are very hard to | |
164 | ;; read (for me anyway) on a dark background. | |
165 | ||
166 | (defconst nxml-sky-blue-color "#ACACFC") ; hue 240 | |
167 | (defconst nxml-dark-green-color "#00AD00") ; hue 120 | |
168 | (defconst nxml-light-green-color "#70F170") ; hue 120 | |
169 | ||
170 | (defface nxml-delimited-data-face | |
171 | `((((class color) (background light)) (:foreground ,nxml-dark-blue-color)) | |
172 | (((class color) (background dark)) (:foreground ,nxml-light-green-color))) | |
173 | "Face used to highlight data enclosed between delimiters. | |
174 | By default, this is inherited by `nxml-attribute-value-face' | |
175 | and `nxml-processing-instruction-content-face'." | |
176 | :group 'nxml-highlighting-faces) | |
177 | ||
178 | (defface nxml-name-face | |
179 | `((((class color) (background light)) (:foreground ,nxml-green-color)) | |
180 | (((class color) (background dark)) (:foreground ,nxml-sky-blue-color))) | |
181 | "Face used to highlight various names. | |
182 | This includes element and attribute names, processing | |
183 | instruction targets and the CDATA keyword in a CDATA section. | |
184 | This is not used directly, but only via inheritance by other faces." | |
185 | :group 'nxml-highlighting-faces) | |
186 | ||
187 | (defface nxml-ref-face | |
188 | `((((class color) (background light)) (:foreground ,nxml-light-blue-color)) | |
189 | (((class color) (background dark)) (:foreground ,nxml-dark-green-color))) | |
190 | "Face used to highlight character and entity references. | |
191 | This is not used directly, but only via inheritance by other faces." | |
192 | :group 'nxml-highlighting-faces) | |
193 | ||
194 | (defface nxml-delimiter-face | |
195 | `((((class color) (background light)) (:foreground ,nxml-light-blue-color)) | |
196 | (((class color) (background dark)) (:foreground ,nxml-dark-green-color)) | |
197 | (t (:bold t))) | |
198 | "Face used to highlight delimiters. | |
199 | This is not used directly, but only via inheritance by other faces." | |
200 | :group 'nxml-highlighting-faces) | |
201 | ||
202 | (defface nxml-text-face | |
203 | nil | |
204 | "Face used to highlight text." | |
205 | :group 'nxml-highlighting-faces) | |
206 | ||
207 | (defface nxml-comment-content-face | |
208 | '((t (:italic t))) | |
209 | "Face used to highlight the content of comments." | |
210 | :group 'nxml-highlighting-faces) | |
211 | ||
212 | (defface nxml-comment-delimiter-face | |
213 | '((t (:inherit nxml-delimiter-face))) | |
214 | "Face used for the delimiters of comments, i.e <!-- and -->." | |
215 | :group 'nxml-highlighting-faces) | |
216 | ||
217 | (defface nxml-processing-instruction-delimiter-face | |
218 | '((t (:inherit nxml-delimiter-face))) | |
219 | "Face used for the delimiters of processing instructions, i.e <? and ?>." | |
220 | :group 'nxml-highlighting-faces) | |
221 | ||
222 | (defface nxml-processing-instruction-target-face | |
223 | '((t (:inherit nxml-name-face))) | |
224 | "Face used for the target of processing instructions." | |
225 | :group 'nxml-highlighting-faces) | |
226 | ||
227 | (defface nxml-processing-instruction-content-face | |
228 | '((t (:inherit nxml-delimited-data-face))) | |
229 | "Face used for the content of processing instructions." | |
230 | :group 'nxml-highlighting-faces) | |
231 | ||
232 | (defface nxml-cdata-section-delimiter-face | |
233 | '((t (:inherit nxml-delimiter-face))) | |
234 | "Face used for the delimiters of CDATA sections, i.e <![, [, and ]]>." | |
235 | :group 'nxml-highlighting-faces) | |
236 | ||
237 | (defface nxml-cdata-section-CDATA-face | |
238 | '((t (:inherit nxml-name-face))) | |
239 | "Face used for the CDATA keyword in CDATA sections." | |
240 | :group 'nxml-highlighting-faces) | |
241 | ||
242 | (defface nxml-cdata-section-content-face | |
243 | '((t (:inherit nxml-text-face))) | |
244 | "Face used for the content of CDATA sections." | |
245 | :group 'nxml-highlighting-faces) | |
246 | ||
247 | (defface nxml-char-ref-number-face | |
248 | '((t (:inherit nxml-ref-face))) | |
249 | "Face used for the number in character references. | |
250 | This includes ths `x' in hex references." | |
251 | :group 'nxml-highlighting-faces) | |
252 | ||
253 | (defface nxml-char-ref-delimiter-face | |
254 | '((t (:inherit nxml-ref-face))) | |
255 | "Face used for the delimiters of character references, i.e &# and ;." | |
256 | :group 'nxml-highlighting-faces) | |
257 | ||
258 | (defface nxml-entity-ref-name-face | |
259 | '((t (:inherit nxml-ref-face))) | |
260 | "Face used for the entity name in general entity references." | |
261 | :group 'nxml-highlighting-faces) | |
262 | ||
263 | (defface nxml-entity-ref-delimiter-face | |
264 | '((t (:inherit nxml-ref-face))) | |
265 | "Face used for the delimiters of entity references, i.e & and ;." | |
266 | :group 'nxml-highlighting-faces) | |
267 | ||
268 | (defface nxml-tag-delimiter-face | |
269 | '((t (:inherit nxml-delimiter-face))) | |
270 | "Face used for the angle brackets delimiting tags. | |
271 | `nxml-tag-slash-face' is used for slashes." | |
272 | :group 'nxml-highlighting-faces) | |
273 | ||
274 | (defface nxml-tag-slash-face | |
275 | '((t (:inherit nxml-name-face))) | |
276 | "Face used for slashes in tags, both in end-tags and empty-elements." | |
277 | :group 'nxml-highlighting-faces) | |
278 | ||
279 | (defface nxml-element-prefix-face | |
280 | '((t (:inherit nxml-name-face))) | |
281 | "Face used for the prefix of elements." | |
282 | :group 'nxml-highlighting-faces) | |
283 | ||
284 | (defface nxml-element-colon-face | |
285 | '((t (:inherit nxml-name-face))) | |
286 | "Face used for the colon in element names." | |
287 | :group 'nxml-highlighting-faces) | |
288 | ||
289 | (defface nxml-element-local-name-face | |
290 | '((t (:inherit nxml-name-face))) | |
291 | "Face used for the local name of elements." | |
292 | :group 'nxml-highlighting-faces) | |
293 | ||
294 | (defface nxml-attribute-prefix-face | |
295 | '((t (:inherit nxml-name-face))) | |
296 | "Face used for the prefix of attributes." | |
297 | :group 'nxml-highlighting-faces) | |
298 | ||
299 | (defface nxml-attribute-colon-face | |
300 | '((t (:inherit nxml-name-face))) | |
301 | "Face used for the colon in attribute names." | |
302 | :group 'nxml-highlighting-faces) | |
303 | ||
304 | (defface nxml-attribute-local-name-face | |
305 | '((t (:inherit nxml-name-face))) | |
306 | "Face used for the local name of attributes." | |
307 | :group 'nxml-highlighting-faces) | |
308 | ||
309 | (defface nxml-namespace-attribute-xmlns-face | |
310 | '((t (:inherit nxml-name-face))) | |
311 | "Face used for `xmlns' in namespace attributes." | |
312 | :group 'nxml-highlighting-faces) | |
313 | ||
314 | (defface nxml-namespace-attribute-colon-face | |
315 | '((t (:inherit nxml-name-face))) | |
316 | "Face used for the colon in namespace attributes." | |
317 | :group 'nxml-highlighting-faces) | |
318 | ||
319 | (defface nxml-namespace-attribute-prefix-face | |
320 | '((t (:inherit nxml-name-face))) | |
321 | "Face used for the prefix declared in namespace attributes." | |
322 | :group 'nxml-highlighting-faces) | |
323 | ||
324 | (defface nxml-attribute-value-face | |
325 | '((t (:inherit nxml-delimited-data-face))) | |
326 | "Face used for the value of attributes." | |
327 | :group 'nxml-highlighting-faces) | |
328 | ||
329 | (defface nxml-attribute-value-delimiter-face | |
330 | '((t (:inherit nxml-delimiter-face))) | |
331 | "Face used for the delimiters of attribute values." | |
332 | :group 'nxml-highlighting-faces) | |
333 | ||
334 | (defface nxml-namespace-attribute-value-face | |
335 | '((t (:inherit nxml-attribute-value-face))) | |
336 | "Face used for the value of namespace attributes." | |
337 | :group 'nxml-highlighting-faces) | |
338 | ||
339 | (defface nxml-namespace-attribute-value-delimiter-face | |
340 | '((t (:inherit nxml-attribute-value-delimiter-face))) | |
341 | "Face used for the delimiters of namespace attribute values." | |
342 | :group 'nxml-highlighting-faces) | |
343 | ||
344 | (defface nxml-prolog-literal-delimiter-face | |
345 | '((t (:inherit nxml-delimiter-face))) | |
346 | "Face used for the delimiters of literals in the prolog." | |
347 | :group 'nxml-highlighting-faces) | |
348 | ||
349 | (defface nxml-prolog-literal-content-face | |
350 | '((t (:inherit nxml-delimited-data-face))) | |
351 | "Face used for the content of literals in the prolog." | |
352 | :group 'nxml-highlighting-faces) | |
353 | ||
354 | (defface nxml-prolog-keyword-face | |
355 | '((t (:inherit nxml-name-face))) | |
356 | "Face used for keywords in the prolog." | |
357 | :group 'nxml-highlighting-faces) | |
358 | ||
359 | (defface nxml-markup-declaration-delimiter-face | |
360 | '((t (:inherit nxml-delimiter-face))) | |
361 | "Face used for the delimiters of markup declarations in the prolog. | |
362 | The delimiters are <! and >." | |
363 | :group 'nxml-highlighting-faces) | |
364 | ||
365 | (defface nxml-hash-face | |
366 | '((t (:inherit nxml-name-face))) | |
367 | "Face used for # before a name in the prolog." | |
368 | :group 'nxml-highlighting-faces) | |
369 | ||
370 | (defface nxml-glyph-face | |
371 | '((((type x)) | |
372 | (:family | |
373 | "misc-fixed" | |
374 | :background | |
375 | "light grey" | |
376 | :foreground | |
377 | "black" | |
378 | :weight | |
379 | normal | |
380 | :slant | |
381 | normal)) | |
382 | (t | |
383 | (:background | |
384 | "light grey" | |
385 | :foreground | |
386 | "black" | |
387 | :weight | |
388 | normal | |
389 | :slant | |
390 | normal))) | |
391 | "Face used for glyph for char references." | |
392 | :group 'nxml-highlighting-faces) | |
393 | ||
394 | ;;; Global variables | |
395 | ||
396 | ;; This is initialized in rng-auto.el. | |
397 | (defvar nxml-version nil | |
398 | "*The version of nxml-mode that is being used.") | |
399 | ||
400 | (defvar nxml-prolog-regions nil | |
401 | "List of regions in the prolog to be fontified. | |
402 | See the function `xmltok-forward-prolog' for more information.") | |
403 | (make-variable-buffer-local 'nxml-prolog-regions) | |
404 | ||
405 | (defvar nxml-last-fontify-end nil | |
406 | "Position where fontification last ended. | |
407 | Nil if the buffer changed since the last fontification.") | |
408 | (make-variable-buffer-local 'nxml-last-fontify-end) | |
409 | ||
410 | (defvar nxml-degraded nil | |
411 | "Non-nil if currently operating in degraded mode. | |
412 | Degraded mode is enabled when an internal error is encountered in the | |
413 | fontification or after-change functions.") | |
414 | (make-variable-buffer-local 'nxml-degraded) | |
415 | ||
416 | (defvar nxml-completion-hook nil | |
417 | "Hook run by `nxml-complete'. | |
418 | This hook is run until success.") | |
419 | ||
420 | (defvar nxml-in-mixed-content-hook nil | |
421 | "Hook to determine whether point is in mixed content. | |
422 | The hook is called without arguments. It should return nil if it is | |
423 | definitely not mixed; non-nil otherwise. The hook will be run until | |
424 | one of the functions returns nil.") | |
425 | ||
426 | (defvar nxml-mixed-scan-distance 4000 | |
427 | "Maximum distance from point to scan when checking for mixed content.") | |
428 | ||
429 | (defvar nxml-end-tag-indent-scan-distance 4000 | |
430 | "Maximum distance from point to scan backwards when indenting end-tag.") | |
431 | ||
432 | (defvar nxml-char-ref-extra-display t | |
433 | "Non-nil means display extra information for character references. | |
434 | The extra information consists of a tooltip with the character name | |
435 | and, if `nxml-char-ref-display-glyph-flag' is non-nil, a glyph | |
436 | corresponding to the referenced character following the character | |
437 | reference.") | |
438 | (make-variable-buffer-local 'nxml-char-ref-extra-display) | |
439 | ||
440 | (defvar nxml-mode-map | |
441 | (let ((map (make-sparse-keymap))) | |
442 | (define-key map "\M-\C-u" 'nxml-backward-up-element) | |
443 | (define-key map "\M-\C-d" 'nxml-down-element) | |
444 | (define-key map "\M-\C-n" 'nxml-forward-element) | |
445 | (define-key map "\M-\C-p" 'nxml-backward-element) | |
446 | (define-key map "\M-{" 'nxml-backward-paragraph) | |
447 | (define-key map "\M-}" 'nxml-forward-paragraph) | |
448 | (define-key map "\M-h" 'nxml-mark-paragraph) | |
449 | (define-key map "\C-c\C-f" 'nxml-finish-element) | |
450 | (define-key map "\C-c\C-m" 'nxml-split-element) | |
451 | (define-key map "\C-c\C-b" 'nxml-balanced-close-start-tag-block) | |
452 | (define-key map "\C-c\C-i" 'nxml-balanced-close-start-tag-inline) | |
453 | (define-key map "\C-c\C-x" 'nxml-insert-xml-declaration) | |
454 | (define-key map "\C-c\C-d" 'nxml-dynamic-markup-word) | |
455 | ;; u is for Unicode | |
456 | (define-key map "\C-c\C-u" 'nxml-insert-named-char) | |
457 | (define-key map "\C-c\C-o" nxml-outline-prefix-map) | |
458 | (define-key map [S-mouse-2] 'nxml-mouse-hide-direct-text-content) | |
459 | (define-key map "/" 'nxml-electric-slash) | |
460 | (define-key map [C-return] 'nxml-complete) | |
461 | (when nxml-bind-meta-tab-to-complete-flag | |
462 | (define-key map "\M-\t" 'nxml-complete)) | |
463 | map) | |
464 | "Keymap for nxml-mode.") | |
465 | ||
466 | (defsubst nxml-set-face (start end face) | |
467 | (when (and face (< start end)) | |
468 | (put-text-property start end 'face face))) | |
469 | ||
470 | (defun nxml-clear-face (start end) | |
471 | (remove-text-properties start end '(face nil)) | |
472 | (nxml-clear-char-ref-extra-display start end)) | |
473 | ||
474 | (defsubst nxml-set-fontified (start end) | |
475 | (put-text-property start end 'fontified t)) | |
476 | ||
477 | (defsubst nxml-clear-fontified (start end) | |
478 | (remove-text-properties start end '(fontified nil))) | |
479 | ||
480 | ;;;###autoload | |
481 | (defun nxml-mode () | |
482 | ;; We use C-c C-i instead of \\[nxml-balanced-close-start-tag-inline] | |
483 | ;; because Emacs turns C-c C-i into C-c TAB which is hard to type and | |
484 | ;; not mnemonic. | |
485 | "Major mode for editing XML. | |
486 | ||
487 | Syntax highlighting is performed unless the variable | |
488 | `nxml-syntax-highlight-flag' is nil. | |
489 | ||
490 | \\[nxml-finish-element] finishes the current element by inserting an end-tag. | |
491 | C-c C-i closes a start-tag with `>' and then inserts a balancing end-tag | |
492 | leaving point between the start-tag and end-tag. | |
493 | \\[nxml-balanced-close-start-tag-block] is similar but for block rather than inline elements: | |
494 | the start-tag, point, and end-tag are all left on separate lines. | |
495 | If `nxml-slash-auto-complete-flag' is non-nil, then inserting a `</' | |
496 | automatically inserts the rest of the end-tag. | |
497 | ||
498 | \\[nxml-complete] performs completion on the symbol preceding point. | |
499 | ||
500 | \\[nxml-dynamic-markup-word] uses the contents of the current buffer | |
501 | to choose a tag to put around the word preceding point. | |
502 | ||
503 | Sections of the document can be displayed in outline form. The | |
504 | variable `nxml-section-element-name-regexp' controls when an element | |
505 | is recognized as a section. The same key sequences that change | |
506 | visibility in outline mode are used except that they start with C-c C-o | |
507 | instead of C-c. | |
508 | ||
509 | Validation is provided by the related minor-mode `rng-validate-mode'. | |
510 | This also makes completion schema- and context- sensitive. Element | |
511 | names, attribute names, attribute values and namespace URIs can all be | |
512 | completed. By default, `rng-validate-mode' is automatically enabled by | |
513 | `rng-nxml-mode-init' which is normally added to `nxml-mode-hook'. You | |
514 | can toggle it using \\[rng-validate-mode]. | |
515 | ||
516 | \\[indent-for-tab-command] indents the current line appropriately. | |
517 | This can be customized using the variable `nxml-child-indent' | |
518 | and the variable `nxml-attribute-indent'. | |
519 | ||
520 | \\[nxml-insert-named-char] inserts a character reference using | |
521 | the character's name (by default, the Unicode name). \\[universal-argument] \\[nxml-insert-named-char] | |
522 | inserts the character directly. | |
523 | ||
524 | The Emacs commands that normally operate on balanced expressions will | |
525 | operate on XML markup items. Thus \\[forward-sexp] will move forward | |
526 | across one markup item; \\[backward-sexp] will move backward across | |
527 | one markup item; \\[kill-sexp] will kill the following markup item; | |
528 | \\[mark-sexp] will mark the following markup item. By default, each | |
529 | tag each treated as a single markup item; to make the complete element | |
530 | be treated as a single markup item, set the variable | |
531 | `nxml-sexp-element-flag' to t. For more details, see the function | |
532 | `nxml-forward-balanced-item'. | |
533 | ||
534 | \\[nxml-backward-up-element] and \\[nxml-down-element] move up and down the element structure. | |
535 | ||
536 | Many aspects this mode can be customized using | |
537 | \\[customize-group] nxml RET." | |
538 | (interactive) | |
539 | (kill-all-local-variables) | |
540 | (setq major-mode 'nxml-mode) | |
541 | (setq mode-name "nXML") | |
542 | ;; We'll determine the fill prefix ourselves | |
543 | (make-local-variable 'adaptive-fill-mode) | |
544 | (setq adaptive-fill-mode nil) | |
545 | (make-local-variable 'forward-sexp-function) | |
546 | (setq forward-sexp-function 'nxml-forward-balanced-item) | |
547 | (make-local-variable 'indent-line-function) | |
548 | (setq indent-line-function 'nxml-indent-line) | |
549 | (make-local-variable 'fill-paragraph-function) | |
550 | (setq fill-paragraph-function 'nxml-do-fill-paragraph) | |
551 | ;; Comment support | |
552 | ;; This doesn't seem to work too well; | |
553 | ;; I think we should probably roll our own nxml-comment-dwim function. | |
554 | (make-local-variable 'comment-indent-function) | |
555 | (setq comment-indent-function 'nxml-indent-line) | |
556 | (make-local-variable 'comment-start) | |
557 | (setq comment-start "<!--") | |
558 | (make-local-variable 'comment-start-skip) | |
559 | (setq comment-start-skip "<!--[ \t\r\n]*") | |
560 | (make-local-variable 'comment-end) | |
561 | (setq comment-end "-->") | |
562 | (make-local-variable 'comment-end-skip) | |
563 | (setq comment-end-skip "[ \t\r\n]*-->") | |
564 | (make-local-variable 'comment-line-break-function) | |
565 | (setq comment-line-break-function 'nxml-newline-and-indent) | |
566 | (use-local-map nxml-mode-map) | |
567 | (save-excursion | |
568 | (save-restriction | |
569 | (widen) | |
570 | (nxml-clear-dependent-regions (point-min) (point-max)) | |
571 | (setq nxml-scan-end (copy-marker (point-min) nil)) | |
572 | (nxml-with-unmodifying-text-property-changes | |
573 | (when nxml-syntax-highlight-flag | |
574 | (nxml-clear-fontified (point-min) (point-max))) | |
575 | (nxml-clear-inside (point-min) (point-max)) | |
576 | (nxml-with-invisible-motion | |
577 | (nxml-scan-prolog))))) | |
578 | (when nxml-syntax-highlight-flag | |
579 | (add-hook 'fontification-functions 'nxml-fontify nil t)) | |
580 | (add-hook 'after-change-functions 'nxml-after-change nil t) | |
581 | (add-hook 'write-contents-hooks 'nxml-prepare-to-save) | |
582 | (when (not (and (buffer-file-name) (file-exists-p (buffer-file-name)))) | |
583 | (when (and nxml-default-buffer-file-coding-system | |
584 | (not (local-variable-p 'buffer-file-coding-system))) | |
585 | (setq buffer-file-coding-system nxml-default-buffer-file-coding-system)) | |
586 | (when nxml-auto-insert-xml-declaration-flag | |
587 | (nxml-insert-xml-declaration))) | |
588 | (run-hooks 'nxml-mode-hook)) | |
589 | ||
590 | (defun nxml-degrade (context err) | |
591 | (message "Internal nXML mode error in %s (%s), degrading" | |
592 | context | |
593 | (error-message-string err)) | |
594 | (ding) | |
595 | (setq nxml-degraded t) | |
596 | (setq nxml-prolog-end 1) | |
597 | (save-excursion | |
598 | (save-restriction | |
599 | (widen) | |
600 | (nxml-with-unmodifying-text-property-changes | |
601 | (nxml-clear-face (point-min) (point-max)) | |
602 | (nxml-set-fontified (point-min) (point-max)) | |
603 | (nxml-clear-inside (point-min) (point-max))) | |
604 | (setq mode-name "nXML/degraded")))) | |
605 | ||
606 | ;;; Change management | |
607 | ||
608 | (defun nxml-after-change (start end pre-change-length) | |
609 | ;; Work around bug in insert-file-contents. | |
610 | (when (> end (1+ (buffer-size))) | |
611 | (setq start 1) | |
612 | (setq end (1+ (buffer-size)))) | |
613 | (unless nxml-degraded | |
614 | (condition-case err | |
615 | (save-excursion | |
616 | (save-restriction | |
617 | (widen) | |
618 | (save-match-data | |
619 | (nxml-with-invisible-motion | |
620 | (nxml-with-unmodifying-text-property-changes | |
621 | (nxml-after-change1 start end pre-change-length)))))) | |
622 | (error | |
623 | (nxml-degrade 'nxml-after-change err))))) | |
624 | ||
625 | (defun nxml-after-change1 (start end pre-change-length) | |
626 | (setq nxml-last-fontify-end nil) | |
627 | (let ((pre-change-end (+ start pre-change-length))) | |
628 | (setq start | |
629 | (nxml-adjust-start-for-dependent-regions start | |
630 | end | |
631 | pre-change-length)) | |
632 | (when (<= start | |
633 | ;; Add 2 so as to include the < and following char | |
634 | ;; that start the instance, since changing these | |
635 | ;; can change where the prolog ends. | |
636 | (+ nxml-prolog-end 2)) | |
637 | ;; end must be extended to at least the end of the old prolog | |
638 | (when (< pre-change-end nxml-prolog-end) | |
639 | (setq end | |
640 | ;; don't let end get out of range even if pre-change-length | |
641 | ;; is bogus | |
642 | (min (point-max) | |
643 | (+ end (- nxml-prolog-end pre-change-end))))) | |
644 | (nxml-scan-prolog))) | |
645 | (cond ((<= end nxml-prolog-end) | |
646 | (setq end nxml-prolog-end) | |
647 | (goto-char start) | |
648 | ;; This is so that Emacs redisplay works | |
649 | (setq start (line-beginning-position))) | |
650 | ((and (<= start nxml-scan-end) | |
651 | (> start (point-min)) | |
652 | (nxml-get-inside (1- start))) | |
653 | ;; The closing delimiter might have been removed. | |
654 | ;; So we may need to redisplay from the beginning | |
655 | ;; of the token. | |
656 | (goto-char (1- start)) | |
657 | (nxml-move-outside-backwards) | |
658 | ;; This is so that Emacs redisplay works | |
659 | (setq start (line-beginning-position)) | |
660 | (setq end (max (nxml-scan-after-change (point) end) | |
661 | end))) | |
662 | (t | |
663 | (goto-char start) | |
664 | ;; This is both for redisplay and to move back | |
665 | ;; past any incomplete opening delimiters | |
666 | (setq start (line-beginning-position)) | |
667 | (setq end (max (nxml-scan-after-change start end) | |
668 | end)))) | |
669 | (when nxml-syntax-highlight-flag | |
670 | (when (>= start end) | |
671 | ;; Must clear at least one char so as to trigger redisplay. | |
672 | (cond ((< start (point-max)) | |
673 | (setq end (1+ start))) | |
674 | (t | |
675 | (setq end (point-max)) | |
676 | (goto-char end) | |
677 | (setq start (line-beginning-position))))) | |
678 | (nxml-clear-fontified start end))) | |
679 | ||
680 | ;;; Encodings | |
681 | ||
682 | (defun nxml-insert-xml-declaration () | |
683 | "Insert an XML declaration at the beginning of buffer. | |
684 | The XML declaration will declare an encoding depending on the buffer's | |
685 | `buffer-file-coding-system'." | |
686 | (interactive "*") | |
687 | (let ((coding-system | |
688 | (if (and buffer-file-coding-system | |
689 | (coding-system-p buffer-file-coding-system) | |
690 | (coding-system-get buffer-file-coding-system | |
691 | 'mime-charset)) | |
692 | buffer-file-coding-system | |
693 | (nxml-choose-utf-coding-system)))) | |
694 | (goto-char (point-min)) | |
695 | (insert (format "<?xml version=\"1.0\" encoding=\"%s\"?>\n" | |
696 | (nxml-coding-system-name coding-system))))) | |
697 | ||
698 | (defun nxml-prepare-to-save () | |
699 | (unless (and (not enable-multibyte-characters) | |
700 | (local-variable-p 'buffer-file-coding-system) | |
701 | buffer-file-coding-system | |
702 | (or (eq (coding-system-type buffer-file-coding-system) 5) | |
703 | (eq buffer-file-coding-system 'no-conversion))) | |
704 | (save-excursion | |
705 | (setq buffer-file-coding-system (nxml-select-coding-system)))) | |
706 | ;; nil from a function in `write-contents-hooks' means | |
707 | ;; to continue and write the file as normal | |
708 | nil) | |
709 | ||
710 | (defun nxml-select-coding-system () | |
711 | (let* ((suitable-coding-systems | |
712 | (find-coding-systems-region (point-min) (point-max))) | |
713 | (enc-pos (progn | |
714 | (goto-char (point-min)) | |
715 | (xmltok-get-declared-encoding-position))) | |
716 | (enc-name | |
717 | (and (consp enc-pos) | |
718 | (buffer-substring-no-properties (car enc-pos) | |
719 | (cdr enc-pos)))) | |
720 | (coding-system | |
721 | (cond (enc-name | |
722 | (if (string= (downcase enc-name) "utf-16") | |
723 | (nxml-choose-utf-16-coding-system) | |
724 | (nxml-mime-charset-coding-system enc-name))) | |
725 | (enc-pos (nxml-choose-utf-coding-system))))) | |
726 | ;; Make sure we have a coding-system | |
727 | (unless coding-system | |
728 | (setq coding-system | |
729 | (and (not buffer-read-only) | |
730 | (nxml-choose-suitable-coding-system | |
731 | suitable-coding-systems))) | |
732 | (let ((message | |
733 | (if enc-name | |
734 | (format "Unknown encoding %s" enc-name) | |
735 | "XML declaration is not well-formed"))) | |
736 | (cond ((not coding-system) | |
737 | (error "%s" message)) | |
738 | ((y-or-n-p | |
739 | (concat message | |
740 | ". " | |
741 | (format (if enc-name | |
742 | "Save with %s" | |
743 | "Modify and save with encoding %s") | |
744 | (nxml-coding-system-name coding-system)) | |
745 | " ")) | |
746 | (nxml-fix-encoding-declaration enc-pos coding-system)) | |
747 | (t (signal 'quit nil))))) | |
748 | ;; Make sure it can encode all the characters in the buffer | |
749 | (unless (or (memq (coding-system-base coding-system) | |
750 | suitable-coding-systems) | |
751 | (equal suitable-coding-systems '(undecided))) | |
752 | (let ((message | |
753 | (nxml-unsuitable-coding-system-message coding-system | |
754 | enc-name))) | |
755 | (setq coding-system | |
756 | (and (not buffer-read-only) | |
757 | (nxml-choose-suitable-coding-system | |
758 | suitable-coding-systems))) | |
759 | (cond ((not coding-system) (error "%s" message)) | |
760 | ((y-or-n-p (concat message | |
761 | (format ". Save with %s " | |
762 | (nxml-coding-system-name | |
763 | coding-system)))) | |
764 | (nxml-fix-encoding-declaration enc-pos coding-system)) | |
765 | (t (signal 'quit nil))))) | |
766 | ;; Merge the newline type of our existing encoding | |
767 | (let ((current-eol-type | |
768 | (coding-system-eol-type buffer-file-coding-system))) | |
769 | (when (and current-eol-type (integerp current-eol-type)) | |
770 | (setq coding-system | |
771 | (coding-system-change-eol-conversion coding-system | |
772 | current-eol-type)))) | |
773 | coding-system)) | |
774 | ||
775 | (defun nxml-unsuitable-coding-system-message (coding-system &optional enc-name) | |
776 | (if (nxml-coding-system-unicode-p coding-system) | |
777 | "Cannot translate some characters to Unicode" | |
778 | (format "Cannot encode some characters with %s" | |
779 | (or enc-name | |
780 | (nxml-coding-system-name coding-system))))) | |
781 | ||
782 | (defconst nxml-utf-16-coding-systems (and (coding-system-p 'utf-16-be) | |
783 | (coding-system-p 'utf-16-le) | |
784 | '(utf-16-be utf-16-le))) | |
785 | ||
786 | (defconst nxml-utf-coding-systems (cons 'utf-8 nxml-utf-16-coding-systems)) | |
787 | ||
788 | (defun nxml-coding-system-unicode-p (coding-system) | |
789 | (nxml-coding-system-member (coding-system-base coding-system) | |
790 | nxml-utf-coding-systems)) | |
791 | ||
792 | (defun nxml-coding-system-name (coding-system) | |
793 | (setq coding-system (coding-system-base coding-system)) | |
794 | (symbol-name | |
795 | (if (nxml-coding-system-member coding-system nxml-utf-16-coding-systems) | |
796 | 'utf-16 | |
797 | (or (coding-system-get coding-system 'mime-charset) | |
798 | coding-system)))) | |
799 | ||
800 | (defun nxml-fix-encoding-declaration (enc-pos coding-system) | |
801 | (let ((charset (nxml-coding-system-name coding-system))) | |
802 | (cond ((consp enc-pos) | |
803 | (delete-region (car enc-pos) (cdr enc-pos)) | |
804 | (goto-char (car enc-pos)) | |
805 | (insert charset)) | |
806 | ((integerp enc-pos) | |
807 | (goto-char enc-pos) | |
808 | (insert " encoding=\"" charset ?\")) | |
809 | (t | |
810 | (goto-char (point-min)) | |
811 | (insert "<?xml version=\"1.0\" encoding=\"" | |
812 | charset | |
813 | "\"?>\n") | |
814 | (when (and (not enc-pos) | |
815 | (let ((case-fold-search t)) | |
816 | (looking-at xmltok-bad-xml-decl-regexp))) | |
817 | (delete-region (point) (match-end 0))))))) | |
818 | ||
819 | (defun nxml-choose-suitable-coding-system (suitable-coding-systems) | |
820 | (let (ret coding-system) | |
821 | (if (and buffer-file-coding-system | |
822 | (memq (coding-system-base buffer-file-coding-system) | |
823 | suitable-coding-systems)) | |
824 | buffer-file-coding-system | |
825 | (while (and suitable-coding-systems (not ret)) | |
826 | (setq coding-system (car suitable-coding-systems)) | |
827 | (if (coding-system-get coding-system 'mime-charset) | |
828 | (setq ret coding-system) | |
829 | (setq suitable-coding-systems (cdr suitable-coding-systems)))) | |
830 | ret))) | |
831 | ||
832 | (defun nxml-choose-utf-coding-system () | |
833 | (let ((cur (and (local-variable-p 'buffer-file-coding-system) | |
834 | buffer-file-coding-system | |
835 | (coding-system-base buffer-file-coding-system)))) | |
836 | (cond ((car (nxml-coding-system-member cur nxml-utf-coding-systems))) | |
837 | ((and nxml-prefer-utf-16-to-utf-8-flag | |
838 | (coding-system-p 'utf-16-le) | |
839 | (coding-system-p 'utf-16-be)) | |
840 | (if nxml-prefer-utf-16-little-to-big-endian-flag | |
841 | 'utf-16-le | |
842 | 'utf-16-be)) | |
843 | (t 'utf-8)))) | |
844 | ||
845 | (defun nxml-choose-utf-16-coding-system () | |
846 | (let ((cur (and (local-variable-p 'buffer-file-coding-system) | |
847 | buffer-file-coding-system | |
848 | (coding-system-base buffer-file-coding-system)))) | |
849 | (cond ((car (nxml-coding-system-member cur nxml-utf-16-coding-systems))) | |
850 | (nxml-prefer-utf-16-little-to-big-endian-flag | |
851 | (and (coding-system-p 'utf-16-le) 'utf-16-le)) | |
852 | (t (and (coding-system-p 'utf-16-be) 'utf-16-be))))) | |
853 | ||
854 | (defun nxml-coding-system-member (coding-system coding-systems) | |
855 | (let (ret) | |
856 | (while (and coding-systems (not ret)) | |
857 | (if (coding-system-equal coding-system | |
858 | (car coding-systems)) | |
859 | (setq ret coding-systems) | |
860 | (setq coding-systems (cdr coding-systems)))) | |
861 | ret)) | |
862 | ||
863 | ;;; Fontification | |
864 | ||
865 | (defun nxml-fontify (start) | |
866 | (condition-case err | |
867 | (save-excursion | |
868 | (save-restriction | |
869 | (widen) | |
870 | (save-match-data | |
871 | (nxml-with-invisible-motion | |
872 | (nxml-with-unmodifying-text-property-changes | |
873 | (if (or nxml-degraded | |
874 | ;; just in case we get called in the wrong buffer | |
875 | (not nxml-prolog-end)) | |
876 | (nxml-set-fontified start (point-max)) | |
877 | (nxml-fontify1 start))))))) | |
878 | (error | |
879 | (nxml-degrade 'nxml-fontify err)))) | |
880 | ||
881 | (defun nxml-fontify1 (start) | |
882 | (cond ((< start nxml-prolog-end) | |
883 | (nxml-fontify-prolog) | |
884 | (nxml-set-fontified (point-min) | |
885 | nxml-prolog-end)) | |
886 | (t | |
887 | (goto-char start) | |
888 | (when (not (eq nxml-last-fontify-end start)) | |
889 | (when (not (equal (char-after) ?\<)) | |
890 | (search-backward "<" nxml-prolog-end t)) | |
891 | (nxml-ensure-scan-up-to-date) | |
892 | (nxml-move-outside-backwards)) | |
893 | (let ((start (point))) | |
894 | (nxml-do-fontify (min (point-max) | |
895 | (+ start nxml-fontify-chunk-size))) | |
896 | (setq nxml-last-fontify-end (point)) | |
897 | (nxml-set-fontified start nxml-last-fontify-end))))) | |
898 | ||
899 | (defun nxml-fontify-buffer () | |
900 | (interactive) | |
901 | (save-excursion | |
902 | (save-restriction | |
903 | (widen) | |
904 | (nxml-with-invisible-motion | |
905 | (goto-char (point-min)) | |
906 | (nxml-with-unmodifying-text-property-changes | |
907 | (nxml-fontify-prolog) | |
908 | (goto-char nxml-prolog-end) | |
909 | (nxml-do-fontify)))))) | |
910 | ||
911 | (defun nxml-fontify-prolog () | |
912 | "Fontify the prolog. | |
913 | The buffer is assumed to be prepared for fontification. | |
914 | This does not set the fontified property, but it does clear | |
915 | faces appropriately." | |
916 | (let ((regions nxml-prolog-regions)) | |
917 | (nxml-clear-face (point-min) nxml-prolog-end) | |
918 | (while regions | |
919 | (let ((region (car regions))) | |
920 | (nxml-apply-fontify-rule (aref region 0) | |
921 | (aref region 1) | |
922 | (aref region 2))) | |
923 | (setq regions (cdr regions))))) | |
924 | ||
925 | (defun nxml-do-fontify (&optional bound) | |
926 | "Fontify at least as far as bound. | |
927 | Leave point after last fontified position." | |
928 | (unless bound (setq bound (point-max))) | |
929 | (let (xmltok-dependent-regions | |
930 | xmltok-errors) | |
931 | (while (and (< (point) bound) | |
932 | (nxml-tokenize-forward)) | |
933 | (nxml-clear-face xmltok-start (point)) | |
934 | (nxml-apply-fontify-rule)))) | |
935 | ||
936 | ;; Vectors identify a substring of the token to be highlighted in some face. | |
937 | ||
938 | ;; Token types returned by xmltok-forward. | |
939 | ||
940 | (put 'start-tag | |
941 | 'nxml-fontify-rule | |
942 | '([nil 1 nxml-tag-delimiter-face] | |
943 | [-1 nil nxml-tag-delimiter-face] | |
944 | (element-qname . 1) | |
945 | attributes)) | |
946 | ||
947 | (put 'partial-start-tag | |
948 | 'nxml-fontify-rule | |
949 | '([nil 1 nxml-tag-delimiter-face] | |
950 | (element-qname . 1) | |
951 | attributes)) | |
952 | ||
953 | (put 'end-tag | |
954 | 'nxml-fontify-rule | |
955 | '([nil 1 nxml-tag-delimiter-face] | |
956 | [1 2 nxml-tag-slash-face] | |
957 | [-1 nil nxml-tag-delimiter-face] | |
958 | (element-qname . 2))) | |
959 | ||
960 | (put 'partial-end-tag | |
961 | 'nxml-fontify-rule | |
962 | '([nil 1 nxml-tag-delimiter-face] | |
963 | [1 2 nxml-tag-slash-face] | |
964 | (element-qname . 2))) | |
965 | ||
966 | (put 'empty-element | |
967 | 'nxml-fontify-rule | |
968 | '([nil 1 nxml-tag-delimiter-face] | |
969 | [-2 -1 nxml-tag-slash-face] | |
970 | [-1 nil nxml-tag-delimiter-face] | |
971 | (element-qname . 1) | |
972 | attributes)) | |
973 | ||
974 | (put 'partial-empty-element | |
975 | 'nxml-fontify-rule | |
976 | '([nil 1 nxml-tag-delimiter-face] | |
977 | [-1 nil nxml-tag-slash-face] | |
978 | (element-qname . 1) | |
979 | attributes)) | |
980 | ||
981 | (put 'char-ref | |
982 | 'nxml-fontify-rule | |
983 | '([nil 2 nxml-char-ref-delimiter-face] | |
984 | [2 -1 nxml-char-ref-number-face] | |
985 | [-1 nil nxml-char-ref-delimiter-face] | |
986 | char-ref)) | |
987 | ||
988 | (put 'entity-ref | |
989 | 'nxml-fontify-rule | |
990 | '([nil 1 nxml-entity-ref-delimiter-face] | |
991 | [1 -1 nxml-entity-ref-name-face] | |
992 | [-1 nil nxml-entity-ref-delimiter-face])) | |
993 | ||
994 | (put 'comment | |
995 | 'nxml-fontify-rule | |
996 | '([nil 4 nxml-comment-delimiter-face] | |
997 | [4 -3 nxml-comment-content-face] | |
998 | [-3 nil nxml-comment-delimiter-face])) | |
999 | ||
1000 | (put 'processing-instruction | |
1001 | 'nxml-fontify-rule | |
1002 | '([nil 2 nxml-processing-instruction-delimiter-face] | |
1003 | [-2 nil nxml-processing-instruction-delimiter-face] | |
1004 | processing-instruction-content)) | |
1005 | ||
1006 | (put 'cdata-section | |
1007 | 'nxml-fontify-rule | |
1008 | '([nil 3 nxml-cdata-section-delimiter-face] ; <![ | |
1009 | [3 8 nxml-cdata-section-CDATA-face] ; CDATA | |
1010 | [8 9 nxml-cdata-section-delimiter-face] ; [ | |
1011 | [9 -3 nxml-cdata-section-content-face] ; ]]> | |
1012 | [-3 nil nxml-cdata-section-delimiter-face])) | |
1013 | ||
1014 | (put 'data | |
1015 | 'nxml-fontify-rule | |
1016 | '([nil nil nxml-text-face])) | |
1017 | ||
1018 | ;; Prolog region types in list returned by xmltok-forward-prolog. | |
1019 | ||
1020 | (put 'xml-declaration | |
1021 | 'nxml-fontify-rule | |
1022 | '([nil 2 nxml-processing-instruction-delimiter-face] | |
1023 | [2 5 nxml-processing-instruction-target-face] | |
1024 | [-2 nil nxml-processing-instruction-delimiter-face])) | |
1025 | ||
1026 | (put 'xml-declaration-attribute-name | |
1027 | 'nxml-fontify-rule | |
1028 | '([nil nil nxml-attribute-local-name-face])) | |
1029 | ||
1030 | (put 'xml-declaration-attribute-value | |
1031 | 'nxml-fontify-rule | |
1032 | '([nil 1 nxml-attribute-value-delimiter-face] | |
1033 | [1 -1 nxml-attribute-value-face] | |
1034 | [-1 nil nxml-attribute-value-delimiter-face])) | |
1035 | ||
1036 | (put 'processing-instruction-left | |
1037 | 'nxml-fontify-rule | |
1038 | '([nil 2 nxml-processing-instruction-delimiter-face] | |
1039 | [2 nil nxml-processing-instruction-target-face])) | |
1040 | ||
1041 | (put 'processing-instruction-right | |
1042 | 'nxml-fontify-rule | |
1043 | '([nil -2 nxml-processing-instruction-content-face] | |
1044 | [-2 nil nxml-processing-instruction-delimiter-face])) | |
1045 | ||
1046 | (put 'literal | |
1047 | 'nxml-fontify-rule | |
1048 | '([nil 1 nxml-prolog-literal-delimiter-face] | |
1049 | [1 -1 nxml-prolog-literal-content-face] | |
1050 | [-1 nil nxml-prolog-literal-delimiter-face])) | |
1051 | ||
1052 | (put 'keyword | |
1053 | 'nxml-fontify-rule | |
1054 | '([nil nil nxml-prolog-keyword-face])) | |
1055 | ||
1056 | (put 'markup-declaration-open | |
1057 | 'nxml-fontify-rule | |
1058 | '([0 2 nxml-markup-declaration-delimiter-face] | |
1059 | [2 nil nxml-prolog-keyword-face])) | |
1060 | ||
1061 | (put 'markup-declaration-close | |
1062 | 'nxml-fontify-rule | |
1063 | '([nil nil nxml-markup-declaration-delimiter-face])) | |
1064 | ||
1065 | (put 'internal-subset-open | |
1066 | 'nxml-fontify-rule | |
1067 | '([nil nil nxml-markup-declaration-delimiter-face])) | |
1068 | ||
1069 | (put 'internal-subset-close | |
1070 | 'nxml-fontify-rule | |
1071 | '([nil 1 nxml-markup-declaration-delimiter-face] | |
1072 | [-1 nil nxml-markup-declaration-delimiter-face])) | |
1073 | ||
1074 | (put 'hash-name | |
1075 | 'nxml-fontify-rule | |
1076 | '([nil 1 nxml-hash-face] | |
1077 | [1 nil nxml-prolog-keyword-face])) | |
1078 | ||
1079 | (defun nxml-apply-fontify-rule (&optional type start end) | |
1080 | (let ((rule (get (or type xmltok-type) 'nxml-fontify-rule))) | |
1081 | (unless start (setq start xmltok-start)) | |
1082 | (unless end (setq end (point))) | |
1083 | (while rule | |
1084 | (let* ((action (car rule))) | |
1085 | (setq rule (cdr rule)) | |
1086 | (cond ((vectorp action) | |
1087 | (nxml-set-face (let ((offset (aref action 0))) | |
1088 | (cond ((not offset) start) | |
1089 | ((< offset 0) (+ end offset)) | |
1090 | (t (+ start offset)))) | |
1091 | (let ((offset (aref action 1))) | |
1092 | (cond ((not offset) end) | |
1093 | ((< offset 0) (+ end offset)) | |
1094 | (t (+ start offset)))) | |
1095 | (aref action 2))) | |
1096 | ((and (consp action) | |
1097 | (eq (car action) 'element-qname)) | |
1098 | (when xmltok-name-end ; maybe nil in partial-end-tag case | |
1099 | (nxml-fontify-qname (+ start (cdr action)) | |
1100 | xmltok-name-colon | |
1101 | xmltok-name-end | |
1102 | 'nxml-element-prefix-face | |
1103 | 'nxml-element-colon-face | |
1104 | 'nxml-element-local-name-face))) | |
1105 | ((eq action 'attributes) | |
1106 | (nxml-fontify-attributes)) | |
1107 | ((eq action 'processing-instruction-content) | |
1108 | (nxml-set-face (+ start 2) | |
1109 | xmltok-name-end | |
1110 | 'nxml-processing-instruction-target-face) | |
1111 | (nxml-set-face (save-excursion | |
1112 | (goto-char xmltok-name-end) | |
1113 | (skip-chars-forward " \t\r\n") | |
1114 | (point)) | |
1115 | (- end 2) | |
1116 | 'nxml-processing-instruction-content-face)) | |
1117 | ((eq action 'char-ref) | |
1118 | (nxml-char-ref-display-extra start | |
1119 | end | |
1120 | (xmltok-char-number start end))) | |
1121 | (t (error "Invalid nxml-fontify-rule action %s" action))))))) | |
1122 | ||
1123 | (defun nxml-fontify-attributes () | |
1124 | (while xmltok-namespace-attributes | |
1125 | (nxml-fontify-attribute (car xmltok-namespace-attributes) | |
1126 | 'namespace) | |
1127 | (setq xmltok-namespace-attributes | |
1128 | (cdr xmltok-namespace-attributes))) | |
1129 | (while xmltok-attributes | |
1130 | (nxml-fontify-attribute (car xmltok-attributes)) | |
1131 | (setq xmltok-attributes | |
1132 | (cdr xmltok-attributes)))) | |
1133 | ||
1134 | (defun nxml-fontify-attribute (att &optional namespace-declaration) | |
1135 | (if namespace-declaration | |
1136 | (nxml-fontify-qname (xmltok-attribute-name-start att) | |
1137 | (xmltok-attribute-name-colon att) | |
1138 | (xmltok-attribute-name-end att) | |
1139 | 'nxml-namespace-attribute-xmlns-face | |
1140 | 'nxml-namespace-attribute-colon-face | |
1141 | 'nxml-namespace-attribute-prefix-face | |
1142 | 'nxml-namespace-attribute-xmlns-face) | |
1143 | (nxml-fontify-qname (xmltok-attribute-name-start att) | |
1144 | (xmltok-attribute-name-colon att) | |
1145 | (xmltok-attribute-name-end att) | |
1146 | 'nxml-attribute-prefix-face | |
1147 | 'nxml-attribute-colon-face | |
1148 | 'nxml-attribute-local-name-face)) | |
1149 | (let ((start (xmltok-attribute-value-start att)) | |
1150 | (end (xmltok-attribute-value-end att)) | |
1151 | (refs (xmltok-attribute-refs att)) | |
1152 | (delimiter-face (if namespace-declaration | |
1153 | 'nxml-namespace-attribute-value-delimiter-face | |
1154 | 'nxml-attribute-value-delimiter-face)) | |
1155 | (value-face (if namespace-declaration | |
1156 | 'nxml-namespace-attribute-value-face | |
1157 | 'nxml-attribute-value-face))) | |
1158 | (when start | |
1159 | (nxml-set-face (1- start) start delimiter-face) | |
1160 | (nxml-set-face end (1+ end) delimiter-face) | |
1161 | (while refs | |
1162 | (let* ((ref (car refs)) | |
1163 | (ref-type (aref ref 0)) | |
1164 | (ref-start (aref ref 1)) | |
1165 | (ref-end (aref ref 2))) | |
1166 | (nxml-set-face start ref-start value-face) | |
1167 | (nxml-apply-fontify-rule ref-type ref-start ref-end) | |
1168 | (setq start ref-end)) | |
1169 | (setq refs (cdr refs))) | |
1170 | (nxml-set-face start end value-face)))) | |
1171 | ||
1172 | (defun nxml-fontify-qname (start | |
1173 | colon | |
1174 | end | |
1175 | prefix-face | |
1176 | colon-face | |
1177 | local-name-face | |
1178 | &optional | |
1179 | unprefixed-face) | |
1180 | (cond (colon (nxml-set-face start colon prefix-face) | |
1181 | (nxml-set-face colon (1+ colon) colon-face) | |
1182 | (nxml-set-face (1+ colon) end local-name-face)) | |
1183 | (t (nxml-set-face start end (or unprefixed-face | |
1184 | local-name-face))))) | |
1185 | ||
1186 | ;;; Editing | |
1187 | ||
1188 | (defun nxml-electric-slash (arg) | |
1189 | "Insert a slash. | |
1190 | ||
1191 | With a prefix ARG, do nothing other than insert the slash. | |
1192 | ||
1193 | Otherwise, if `nxml-slash-auto-complete-flag' is non-nil, insert the | |
1194 | rest of the end-tag or empty-element if the slash is potentially part | |
1195 | of an end-tag or the close of an empty-element. | |
1196 | ||
1197 | If the slash is part of an end-tag that is the first non-whitespace | |
1198 | on the line, reindent the line." | |
1199 | (interactive "*P") | |
1200 | (nxml-ensure-scan-up-to-date) | |
1201 | (let* ((slash-pos (point)) | |
1202 | (end-tag-p (and (eq (char-before slash-pos) ?<) | |
1203 | (not (nxml-get-inside slash-pos)))) | |
1204 | (at-indentation (save-excursion | |
1205 | (back-to-indentation) | |
1206 | (eq (point) (1- slash-pos))))) | |
1207 | (self-insert-command (prefix-numeric-value arg)) | |
1208 | (unless arg | |
1209 | (if nxml-slash-auto-complete-flag | |
1210 | (if end-tag-p | |
1211 | (condition-case err | |
1212 | (let ((start-tag-end | |
1213 | (nxml-scan-element-backward (1- slash-pos) t))) | |
1214 | (when start-tag-end | |
1215 | (insert (xmltok-start-tag-qname) ">") | |
1216 | ;; copy the indentation of the start-tag | |
1217 | (when (and at-indentation | |
1218 | (save-excursion | |
1219 | (goto-char xmltok-start) | |
1220 | (back-to-indentation) | |
1221 | (eq (point) xmltok-start))) | |
1222 | (save-excursion | |
1223 | (indent-line-to (save-excursion | |
1224 | (goto-char xmltok-start) | |
1225 | (current-column))))))) | |
1226 | (nxml-scan-error nil)) | |
1227 | (when (and (eq (nxml-token-before) (point)) | |
1228 | (eq xmltok-type 'partial-empty-element)) | |
1229 | (insert ">"))) | |
1230 | (when (and end-tag-p at-indentation) | |
1231 | (nxml-indent-line)))))) | |
1232 | ||
1233 | (defun nxml-balanced-close-start-tag-block () | |
1234 | "Close the start-tag before point with `>' and insert a balancing end-tag. | |
1235 | Point is left between the start-tag and the end-tag. | |
1236 | If there is nothing but whitespace before the `<' that opens the | |
1237 | start-tag, then put point on a blank line, and put the end-tag on | |
1238 | another line aligned with the start-tag." | |
1239 | (interactive "*") | |
1240 | (nxml-balanced-close-start-tag 'block)) | |
1241 | ||
1242 | (defun nxml-balanced-close-start-tag-inline () | |
1243 | "Close the start-tag before point with `>' and insert a balancing end-tag. | |
1244 | Point is left between the start-tag and the end-tag. | |
1245 | No extra whitespace is inserted." | |
1246 | (interactive "*") | |
1247 | (nxml-balanced-close-start-tag 'inline)) | |
1248 | ||
1249 | (defun nxml-balanced-close-start-tag (block-or-inline) | |
1250 | (let ((token-end (nxml-token-before)) | |
1251 | (pos (1+ (point)))) | |
1252 | (unless (or (eq xmltok-type 'partial-start-tag) | |
1253 | (and (memq xmltok-type '(start-tag | |
1254 | empty-element | |
1255 | partial-empty-element)) | |
1256 | (>= token-end pos))) | |
1257 | (error "Not in a start-tag")) | |
1258 | (insert "></" | |
1259 | (buffer-substring-no-properties (+ xmltok-start 1) | |
1260 | (min xmltok-name-end (point))) | |
1261 | ">") | |
1262 | (if (eq block-or-inline 'inline) | |
1263 | (goto-char pos) | |
1264 | (goto-char xmltok-start) | |
1265 | (back-to-indentation) | |
1266 | (if (= (point) xmltok-start) | |
1267 | (let ((indent (current-column))) | |
1268 | (goto-char pos) | |
1269 | (insert "\n") | |
1270 | (indent-line-to indent) | |
1271 | (goto-char pos) | |
1272 | (insert "\n") | |
1273 | (indent-line-to (+ nxml-child-indent indent))) | |
1274 | (goto-char pos))))) | |
1275 | ||
1276 | (defun nxml-finish-element () | |
1277 | "Finish the current element by inserting an end-tag." | |
1278 | (interactive "*") | |
1279 | (nxml-finish-element-1 nil)) | |
1280 | ||
1281 | (defvar nxml-last-split-position nil | |
1282 | "Position where `nxml-split-element' split the current element.") | |
1283 | ||
1284 | (defun nxml-split-element () | |
1285 | "Split the current element by inserting an end-tag and a start-tag. | |
1286 | Point is left after the newly inserted start-tag. When repeated, | |
1287 | split immediately before the previously inserted start-tag and leave | |
1288 | point unchanged." | |
1289 | (interactive "*") | |
1290 | (setq nxml-last-split-position | |
1291 | (if (and (eq last-command this-command) | |
1292 | nxml-last-split-position) | |
1293 | (save-excursion | |
1294 | (goto-char nxml-last-split-position) | |
1295 | (nxml-finish-element-1 t)) | |
1296 | (nxml-finish-element-1 t)))) | |
1297 | ||
1298 | (defun nxml-finish-element-1 (startp) | |
1299 | "Insert an end-tag for the current element and optionally a start-tag. | |
1300 | The start-tag is inserted if STARTP is non-nil. Return the position | |
1301 | of the inserted start-tag or nil if none was inserted." | |
1302 | (interactive "*") | |
1303 | (let* ((token-end (nxml-token-before)) | |
1304 | (start-tag-end | |
1305 | (save-excursion | |
1306 | (when (and (< (point) token-end) | |
1307 | (memq xmltok-type | |
1308 | '(cdata-section | |
1309 | processing-instruction | |
1310 | comment | |
1311 | start-tag | |
1312 | end-tag | |
1313 | empty-element))) | |
1314 | (error "Point is inside a %s" | |
1315 | (nxml-token-type-friendly-name xmltok-type))) | |
1316 | (nxml-scan-element-backward token-end t))) | |
1317 | (starts-line | |
1318 | (save-excursion | |
1319 | (unless (eq xmltok-type 'start-tag) | |
1320 | (error "No matching start-tag")) | |
1321 | (goto-char xmltok-start) | |
1322 | (back-to-indentation) | |
1323 | (eq (point) xmltok-start))) | |
1324 | (ends-line | |
1325 | (save-excursion | |
1326 | (goto-char start-tag-end) | |
1327 | (looking-at "[ \t\r\n]*$"))) | |
1328 | (start-tag-indent (save-excursion | |
1329 | (goto-char xmltok-start) | |
1330 | (current-column))) | |
1331 | (qname (xmltok-start-tag-qname)) | |
1332 | inserted-start-tag-pos) | |
1333 | (when (and starts-line ends-line) | |
1334 | ;; start-tag is on a line by itself | |
1335 | ;; => put the end-tag on a line by itself | |
1336 | (unless (<= (point) | |
1337 | (save-excursion | |
1338 | (back-to-indentation) | |
1339 | (point))) | |
1340 | (insert "\n")) | |
1341 | (indent-line-to start-tag-indent)) | |
1342 | (insert "</" qname ">") | |
1343 | (when startp | |
1344 | (when starts-line | |
1345 | (insert "\n") | |
1346 | (indent-line-to start-tag-indent)) | |
1347 | (setq inserted-start-tag-pos (point)) | |
1348 | (insert "<" qname ">") | |
1349 | (when (and starts-line ends-line) | |
1350 | (insert "\n") | |
1351 | (indent-line-to (save-excursion | |
1352 | (goto-char xmltok-start) | |
1353 | (forward-line 1) | |
1354 | (back-to-indentation) | |
1355 | (if (= (current-column) | |
1356 | (+ start-tag-indent nxml-child-indent)) | |
1357 | (+ start-tag-indent nxml-child-indent) | |
1358 | start-tag-indent))))) | |
1359 | inserted-start-tag-pos)) | |
1360 | ||
1361 | ;;; Indentation | |
1362 | ||
1363 | (defun nxml-indent-line () | |
1364 | "Indent current line as XML." | |
1365 | (let ((indent (nxml-compute-indent)) | |
1366 | (from-end (- (point-max) (point)))) | |
1367 | (when indent | |
1368 | (beginning-of-line) | |
1369 | (let ((bol (point))) | |
1370 | (skip-chars-forward " \t") | |
1371 | (delete-region bol (point))) | |
1372 | (indent-to indent) | |
1373 | (when (> (- (point-max) from-end) (point)) | |
1374 | (goto-char (- (point-max) from-end)))))) | |
1375 | ||
1376 | (defun nxml-compute-indent () | |
1377 | "Return the indent for the line containing point." | |
1378 | (or (nxml-compute-indent-from-matching-start-tag) | |
1379 | (nxml-compute-indent-from-previous-line))) | |
1380 | ||
1381 | (defun nxml-compute-indent-from-matching-start-tag () | |
1382 | "Compute the indent for a line with an end-tag using the matching start-tag. | |
1383 | When the line containing point ends with an end-tag and does not start | |
1384 | in the middle of a token, return the indent of the line containing the | |
1385 | matching start-tag, if there is one and it occurs at the beginning of | |
1386 | its line. Otherwise return nil." | |
1387 | (save-excursion | |
1388 | (back-to-indentation) | |
1389 | (let ((bol (point))) | |
1390 | (let ((inhibit-field-text-motion t)) | |
1391 | (end-of-line)) | |
1392 | (skip-chars-backward " \t") | |
1393 | (and (= (nxml-token-before) (point)) | |
1394 | (memq xmltok-type '(end-tag partial-end-tag)) | |
1395 | ;; start of line must not be inside a token | |
1396 | (or (= xmltok-start bol) | |
1397 | (save-excursion | |
1398 | (goto-char bol) | |
1399 | (nxml-token-after) | |
1400 | (= xmltok-start bol)) | |
1401 | (eq xmltok-type 'data)) | |
1402 | (condition-case err | |
1403 | (nxml-scan-element-backward | |
1404 | (point) | |
1405 | nil | |
1406 | (- (point) | |
1407 | nxml-end-tag-indent-scan-distance)) | |
1408 | (nxml-scan-error nil)) | |
1409 | (< xmltok-start bol) | |
1410 | (progn | |
1411 | (goto-char xmltok-start) | |
1412 | (skip-chars-backward " \t") | |
1413 | (bolp)) | |
1414 | (current-indentation))))) | |
1415 | ||
1416 | (defun nxml-compute-indent-from-previous-line () | |
1417 | "Compute the indent for a line using the indentation of a previous line." | |
1418 | (save-excursion | |
1419 | (end-of-line) | |
1420 | (let ((eol (point)) | |
1421 | bol prev-bol ref | |
1422 | before-context after-context) | |
1423 | (back-to-indentation) | |
1424 | (setq bol (point)) | |
1425 | (catch 'indent | |
1426 | ;; Move backwards until the start of a non-blank line that is | |
1427 | ;; not inside a token. | |
1428 | (while (progn | |
1429 | (when (= (forward-line -1) -1) | |
1430 | (throw 'indent 0)) | |
1431 | (back-to-indentation) | |
1432 | (if (looking-at "[ \t]*$") | |
1433 | t | |
1434 | (or prev-bol | |
1435 | (setq prev-bol (point))) | |
1436 | (nxml-token-after) | |
1437 | (not (or (= xmltok-start (point)) | |
1438 | (eq xmltok-type 'data)))))) | |
1439 | (setq ref (point)) | |
1440 | ;; Now scan over tokens until the end of the line to be indented. | |
1441 | ;; Determine the context before and after the beginning of the | |
1442 | ;; line. | |
1443 | (while (< (point) eol) | |
1444 | (nxml-tokenize-forward) | |
1445 | (cond ((<= bol xmltok-start) | |
1446 | (setq after-context | |
1447 | (nxml-merge-indent-context-type after-context))) | |
1448 | ((and (<= (point) bol) | |
1449 | (not (and (eq xmltok-type 'partial-start-tag) | |
1450 | (= (point) bol)))) | |
1451 | (setq before-context | |
1452 | (nxml-merge-indent-context-type before-context))) | |
1453 | ((eq xmltok-type 'data) | |
1454 | (setq before-context | |
1455 | (nxml-merge-indent-context-type before-context)) | |
1456 | (setq after-context | |
1457 | (nxml-merge-indent-context-type after-context))) | |
1458 | ;; If in the middle of a token that looks inline, | |
1459 | ;; then indent relative to the previous non-blank line | |
1460 | ((eq (nxml-merge-indent-context-type before-context) | |
1461 | 'mixed) | |
1462 | (goto-char prev-bol) | |
1463 | (throw 'indent (current-column))) | |
1464 | (t | |
1465 | (throw 'indent | |
1466 | (nxml-compute-indent-in-token bol)))) | |
1467 | (skip-chars-forward " \t\r\n")) | |
1468 | (goto-char ref) | |
1469 | (+ (current-column) | |
1470 | (* nxml-child-indent | |
1471 | (+ (if (eq before-context 'start-tag) 1 0) | |
1472 | (if (eq after-context 'end-tag) -1 0)))))))) | |
1473 | ||
1474 | (defun nxml-merge-indent-context-type (context) | |
1475 | "Merge the indent context type CONTEXT with the token in `xmltok-type'. | |
1476 | Return the merged indent context type. An indent context type is | |
1477 | either nil or one of the symbols start-tag, end-tag, markup, comment, | |
1478 | mixed." | |
1479 | (cond ((memq xmltok-type '(start-tag partial-start-tag)) | |
1480 | (if (memq context '(nil start-tag comment)) | |
1481 | 'start-tag | |
1482 | 'mixed)) | |
1483 | ((memq xmltok-type '(end-tag partial-end-tag)) | |
1484 | (if (memq context '(nil end-tag comment)) | |
1485 | 'end-tag | |
1486 | 'mixed)) | |
1487 | ((eq xmltok-type 'comment) | |
1488 | (cond ((memq context '(start-tag end-tag comment)) | |
1489 | context) | |
1490 | (context 'mixed) | |
1491 | (t 'comment))) | |
1492 | (context 'mixed) | |
1493 | (t 'markup))) | |
1494 | ||
1495 | (defun nxml-compute-indent-in-token (pos) | |
1496 | "Return the indent for a line that starts inside a token. | |
1497 | POS is the position of the first non-whitespace character of the line. | |
1498 | This expects the xmltok-* variables to be set up as by `xmltok-forward'." | |
1499 | (cond ((memq xmltok-type '(start-tag | |
1500 | partial-start-tag | |
1501 | empty-element | |
1502 | partial-empty-element)) | |
1503 | (nxml-compute-indent-in-start-tag pos)) | |
1504 | ((eq xmltok-type 'comment) | |
1505 | (nxml-compute-indent-in-delimited-token pos "<!--" "-->")) | |
1506 | ((eq xmltok-type 'cdata-section) | |
1507 | (nxml-compute-indent-in-delimited-token pos "<![CDATA[" "]]>")) | |
1508 | ((eq xmltok-type 'processing-instruction) | |
1509 | (nxml-compute-indent-in-delimited-token pos "<?" "?>")) | |
1510 | (t | |
1511 | (goto-char pos) | |
1512 | (if (and (= (forward-line -1) 0) | |
1513 | (< xmltok-start (point))) | |
1514 | (back-to-indentation) | |
1515 | (goto-char xmltok-start)) | |
1516 | (current-column)))) | |
1517 | ||
1518 | (defun nxml-compute-indent-in-start-tag (pos) | |
1519 | "Return the indent for a line that starts inside a start-tag. | |
1520 | Also for a line that starts inside an empty element. | |
1521 | POS is the position of the first non-whitespace character of the line. | |
1522 | This expects the xmltok-* variables to be set up as by `xmltok-forward'." | |
1523 | (let ((value-boundary (nxml-attribute-value-boundary pos)) | |
1524 | (off 0)) | |
1525 | (if value-boundary | |
1526 | ;; inside an attribute value | |
1527 | (let ((value-start (car value-boundary)) | |
1528 | (value-end (cdr value-boundary))) | |
1529 | (goto-char pos) | |
1530 | (forward-line -1) | |
1531 | (if (< (point) value-start) | |
1532 | (goto-char value-start) | |
1533 | (back-to-indentation))) | |
1534 | ;; outside an attribute value | |
1535 | (goto-char pos) | |
1536 | (while (and (= (forward-line -1) 0) | |
1537 | (nxml-attribute-value-boundary (point)))) | |
1538 | (cond ((<= (point) xmltok-start) | |
1539 | (goto-char xmltok-start) | |
1540 | (setq off nxml-attribute-indent) | |
1541 | (let ((atts (xmltok-merge-attributes))) | |
1542 | (when atts | |
1543 | (let* ((att (car atts)) | |
1544 | (start (xmltok-attribute-name-start att))) | |
1545 | (when (< start pos) | |
1546 | (goto-char start) | |
1547 | (setq off 0)))))) | |
1548 | (t | |
1549 | (back-to-indentation)))) | |
1550 | (+ (current-column) off))) | |
1551 | ||
1552 | (defun nxml-attribute-value-boundary (pos) | |
1553 | "Return a pair (START . END) if POS is inside an attribute value. | |
1554 | Otherwise return nil. START and END are the positions of the start | |
1555 | and end of the attribute value containing POS. This expects the | |
1556 | xmltok-* variables to be set up as by `xmltok-forward'." | |
1557 | (let ((atts (xmltok-merge-attributes)) | |
1558 | att value-start value-end value-boundary) | |
1559 | (while atts | |
1560 | (setq att (car atts)) | |
1561 | (setq value-start (xmltok-attribute-value-start att)) | |
1562 | (setq value-end (xmltok-attribute-value-end att)) | |
1563 | (cond ((and value-start (< pos value-start)) | |
1564 | (setq atts nil)) | |
1565 | ((and value-start value-end (<= pos value-end)) | |
1566 | (setq value-boundary (cons value-start value-end)) | |
1567 | (setq atts nil)) | |
1568 | (t (setq atts (cdr atts))))) | |
1569 | value-boundary)) | |
1570 | ||
1571 | (defun nxml-compute-indent-in-delimited-token (pos open-delim close-delim) | |
1572 | "Return the indent for a line that starts inside a token with delimiters. | |
1573 | OPEN-DELIM and CLOSE-DELIM are strings giving the opening and closing | |
1574 | delimiters. POS is the position of the first non-whitespace character | |
1575 | of the line. This expects the xmltok-* variables to be set up as by | |
1576 | `xmltok-forward'." | |
1577 | (cond ((let ((end (+ pos (length close-delim)))) | |
1578 | (and (<= end (point-max)) | |
1579 | (string= (buffer-substring-no-properties pos end) | |
1580 | close-delim))) | |
1581 | (goto-char xmltok-start)) | |
1582 | ((progn | |
1583 | (goto-char pos) | |
1584 | (forward-line -1) | |
1585 | (<= (point) xmltok-start)) | |
1586 | (goto-char (+ xmltok-start (length open-delim))) | |
1587 | (when (and (string= open-delim "<!--") | |
1588 | (looking-at " ")) | |
1589 | (goto-char (1+ (point))))) | |
1590 | (t (back-to-indentation))) | |
1591 | (current-column)) | |
1592 | ||
1593 | ;;; Completion | |
1594 | ||
1595 | (defun nxml-complete () | |
1596 | "Perform completion on the symbol preceding point. | |
1597 | ||
1598 | Inserts as many characters as can be completed. However, if not even | |
1599 | one character can be completed, then a buffer with the possibilities | |
1600 | is popped up and the symbol is read from the minibuffer with | |
1601 | completion. If the symbol is complete, then any characters that must | |
1602 | follow the symbol are also inserted. | |
1603 | ||
1604 | The name space used for completion and what is treated as a symbol | |
1605 | depends on the context. The contexts in which completion is performed | |
1606 | depend on `nxml-completion-hook'." | |
1607 | (interactive) | |
1608 | (unless (run-hook-with-args-until-success 'nxml-completion-hook) | |
1609 | ;; Eventually we will complete on entity names here. | |
1610 | (ding) | |
1611 | (message "Cannot complete in this context"))) | |
1612 | ||
1613 | ;;; Movement | |
1614 | ||
1615 | (defun nxml-forward-balanced-item (&optional arg) | |
1616 | "Move forward across one balanced item. | |
1617 | With ARG, do it that many times. Negative arg -N means | |
1618 | move backward across N balanced expressions. | |
1619 | This is the equivalent of `forward-sexp' for XML. | |
1620 | ||
1621 | An element contains as items strings with no markup, tags, processing | |
1622 | instructions, comments, CDATA sections, entity references and | |
1623 | characters references. However, if the variable | |
1624 | `nxml-sexp-element-flag' is non-nil, then an element is treated as a | |
1625 | single markup item. A start-tag contains an element name followed by | |
1626 | one or more attributes. An end-tag contains just an element name. An | |
1627 | attribute value literals contains strings with no markup, entity | |
1628 | references and character references. A processing instruction | |
1629 | consists of a target and a content string. A comment or a CDATA | |
1630 | section contains a single string. An entity reference contains a | |
1631 | single name. A character reference contains a character number." | |
1632 | (interactive "p") | |
1633 | (or arg (setq arg 1)) | |
1634 | (cond ((> arg 0) | |
1635 | (while (progn | |
1636 | (nxml-forward-single-balanced-item) | |
1637 | (> (setq arg (1- arg)) 0)))) | |
1638 | ((< arg 0) | |
1639 | (while (progn | |
1640 | (nxml-backward-single-balanced-item) | |
1641 | (< (setq arg (1+ arg)) 0)))))) | |
1642 | ||
1643 | (defun nxml-forward-single-balanced-item () | |
1644 | (condition-case err | |
1645 | (goto-char (let ((end (nxml-token-after))) | |
1646 | (save-excursion | |
1647 | (while (eq xmltok-type 'space) | |
1648 | (goto-char end) | |
1649 | (setq end (nxml-token-after))) | |
1650 | (cond ((/= (point) xmltok-start) | |
1651 | (nxml-scan-forward-within end)) | |
1652 | ((and nxml-sexp-element-flag | |
1653 | (eq xmltok-type 'start-tag)) | |
1654 | ;; can't ever return nil here | |
1655 | (nxml-scan-element-forward xmltok-start)) | |
1656 | ((and nxml-sexp-element-flag | |
1657 | (memq xmltok-type | |
1658 | '(end-tag partial-end-tag))) | |
1659 | (error "Already at end of element")) | |
1660 | (t end))))) | |
1661 | (nxml-scan-error | |
1662 | (goto-char (cadr err)) | |
1663 | (apply 'error (cddr err))))) | |
1664 | ||
1665 | (defun nxml-backward-single-balanced-item () | |
1666 | (condition-case err | |
1667 | (goto-char (let ((end (nxml-token-before))) | |
1668 | (save-excursion | |
1669 | (while (eq xmltok-type 'space) | |
1670 | (goto-char xmltok-start) | |
1671 | (setq end (nxml-token-before))) | |
1672 | (cond ((/= (point) end) | |
1673 | (nxml-scan-backward-within end)) | |
1674 | ((and nxml-sexp-element-flag | |
1675 | (eq xmltok-type 'end-tag)) | |
1676 | ;; can't ever return nil here | |
1677 | (nxml-scan-element-backward end) | |
1678 | xmltok-start) | |
1679 | ((and nxml-sexp-element-flag | |
1680 | (eq xmltok-type 'start-tag)) | |
1681 | (error "Already at start of element")) | |
1682 | (t xmltok-start))))) | |
1683 | (nxml-scan-error | |
1684 | (goto-char (cadr err)) | |
1685 | (apply 'error (cddr err))))) | |
1686 | ||
1687 | (defun nxml-scan-forward-within (end) | |
1688 | (setq end (- end (nxml-end-delimiter-length xmltok-type))) | |
1689 | (when (<= end (point)) | |
1690 | (error "Already at end of %s" | |
1691 | (nxml-token-type-friendly-name xmltok-type))) | |
1692 | (cond ((memq xmltok-type '(start-tag | |
1693 | empty-element | |
1694 | partial-start-tag | |
1695 | partial-empty-element)) | |
1696 | (if (< (point) xmltok-name-end) | |
1697 | xmltok-name-end | |
1698 | (let ((att (nxml-find-following-attribute))) | |
1699 | (cond ((not att) end) | |
1700 | ((and (xmltok-attribute-value-start att) | |
1701 | (<= (xmltok-attribute-value-start att) | |
1702 | (point))) | |
1703 | (nxml-scan-forward-in-attribute-value att)) | |
1704 | ((xmltok-attribute-value-end att) | |
1705 | (1+ (xmltok-attribute-value-end att))) | |
1706 | ((save-excursion | |
1707 | (goto-char (xmltok-attribute-name-end att)) | |
1708 | (looking-at "[ \t\r\n]*=")) | |
1709 | (match-end 0)) | |
1710 | (t (xmltok-attribute-name-end att)))))) | |
1711 | ((and (eq xmltok-type 'processing-instruction) | |
1712 | (< (point) xmltok-name-end)) | |
1713 | xmltok-name-end) | |
1714 | (t end))) | |
1715 | ||
1716 | (defun nxml-scan-backward-within (end) | |
1717 | (setq xmltok-start | |
1718 | (+ xmltok-start | |
1719 | (nxml-start-delimiter-length xmltok-type))) | |
1720 | (when (<= (point) xmltok-start) | |
1721 | (error "Already at start of %s" | |
1722 | (nxml-token-type-friendly-name xmltok-type))) | |
1723 | (cond ((memq xmltok-type '(start-tag | |
1724 | empty-element | |
1725 | partial-start-tag | |
1726 | partial-empty-element)) | |
1727 | (let ((att (nxml-find-preceding-attribute))) | |
1728 | (cond ((not att) xmltok-start) | |
1729 | ((and (xmltok-attribute-value-start att) | |
1730 | (<= (xmltok-attribute-value-start att) | |
1731 | (point)) | |
1732 | (<= (point) | |
1733 | (xmltok-attribute-value-end att))) | |
1734 | (nxml-scan-backward-in-attribute-value att)) | |
1735 | (t (xmltok-attribute-name-start att))))) | |
1736 | ((and (eq xmltok-type 'processing-instruction) | |
1737 | (let ((content-start (save-excursion | |
1738 | (goto-char xmltok-name-end) | |
1739 | (skip-chars-forward " \r\t\n") | |
1740 | (point)))) | |
1741 | (and (< content-start (point)) | |
1742 | content-start)))) | |
1743 | (t xmltok-start))) | |
1744 | ||
1745 | (defun nxml-scan-forward-in-attribute-value (att) | |
1746 | (when (= (point) (xmltok-attribute-value-end att)) | |
1747 | (error "Already at end of attribute value")) | |
1748 | (let ((refs (xmltok-attribute-refs att)) | |
1749 | ref) | |
1750 | (while refs | |
1751 | (setq ref (car refs)) | |
1752 | (if (< (point) (aref ref 2)) | |
1753 | (setq refs nil) | |
1754 | (setq ref nil) | |
1755 | (setq refs (cdr refs)))) | |
1756 | (cond ((not ref) | |
1757 | (xmltok-attribute-value-end att)) | |
1758 | ((< (point) (aref ref 1)) | |
1759 | (aref ref 1)) | |
1760 | ((= (point) (aref ref 1)) | |
1761 | (aref ref 2)) | |
1762 | (t | |
1763 | (let ((end (- (aref ref 2) | |
1764 | (nxml-end-delimiter-length (aref ref 0))))) | |
1765 | (if (< (point) end) | |
1766 | end | |
1767 | (error "Already at end of %s" | |
1768 | (nxml-token-type-friendly-name (aref ref 0))))))))) | |
1769 | ||
1770 | (defun nxml-scan-backward-in-attribute-value (att) | |
1771 | (when (= (point) (xmltok-attribute-value-start att)) | |
1772 | (error "Already at start of attribute value")) | |
1773 | (let ((refs (reverse (xmltok-attribute-refs att))) | |
1774 | ref) | |
1775 | (while refs | |
1776 | (setq ref (car refs)) | |
1777 | (if (< (aref ref 1) (point)) | |
1778 | (setq refs nil) | |
1779 | (setq ref nil) | |
1780 | (setq refs (cdr refs)))) | |
1781 | (cond ((not ref) | |
1782 | (xmltok-attribute-value-start att)) | |
1783 | ((< (aref ref 2) (point)) | |
1784 | (aref ref 2)) | |
1785 | ((= (point) (aref ref 2)) | |
1786 | (aref ref 1)) | |
1787 | (t | |
1788 | (let ((start (+ (aref ref 1) | |
1789 | (nxml-start-delimiter-length (aref ref 0))))) | |
1790 | (if (< start (point)) | |
1791 | start | |
1792 | (error "Already at start of %s" | |
1793 | (nxml-token-type-friendly-name (aref ref 0))))))))) | |
1794 | ||
1795 | (defun nxml-find-following-attribute () | |
1796 | (let ((ret nil) | |
1797 | (atts (or xmltok-attributes xmltok-namespace-attributes)) | |
1798 | (more-atts (and xmltok-attributes xmltok-namespace-attributes))) | |
1799 | (while atts | |
1800 | (let* ((att (car atts)) | |
1801 | (name-start (xmltok-attribute-name-start att))) | |
1802 | (cond ((and (<= name-start (point)) | |
1803 | (xmltok-attribute-value-end att) | |
1804 | ;; <= because end is before quote | |
1805 | (<= (point) (xmltok-attribute-value-end att))) | |
1806 | (setq atts nil) | |
1807 | (setq ret att)) | |
1808 | ((and (< (point) name-start) | |
1809 | (or (not ret) | |
1810 | (< name-start | |
1811 | (xmltok-attribute-name-start ret)))) | |
1812 | (setq ret att)))) | |
1813 | (setq atts (cdr atts)) | |
1814 | (unless atts | |
1815 | (setq atts more-atts) | |
1816 | (setq more-atts nil))) | |
1817 | ret)) | |
1818 | ||
1819 | (defun nxml-find-preceding-attribute () | |
1820 | (let ((ret nil) | |
1821 | (atts (or xmltok-attributes xmltok-namespace-attributes)) | |
1822 | (more-atts (and xmltok-attributes xmltok-namespace-attributes))) | |
1823 | (while atts | |
1824 | (let* ((att (car atts)) | |
1825 | (name-start (xmltok-attribute-name-start att))) | |
1826 | (cond ((and (< name-start (point)) | |
1827 | (xmltok-attribute-value-end att) | |
1828 | ;; <= because end is before quote | |
1829 | (<= (point) (xmltok-attribute-value-end att))) | |
1830 | (setq atts nil) | |
1831 | (setq ret att)) | |
1832 | ((and (< name-start (point)) | |
1833 | (or (not ret) | |
1834 | (< (xmltok-attribute-name-start ret) | |
1835 | name-start))) | |
1836 | (setq ret att)))) | |
1837 | (setq atts (cdr atts)) | |
1838 | (unless atts | |
1839 | (setq atts more-atts) | |
1840 | (setq more-atts nil))) | |
1841 | ret)) | |
1842 | ||
1843 | (defun nxml-up-element (&optional arg) | |
1844 | (interactive "p") | |
1845 | (or arg (setq arg 1)) | |
1846 | (if (< arg 0) | |
1847 | (nxml-backward-up-element (- arg)) | |
1848 | (condition-case err | |
1849 | (while (and (> arg 0) | |
1850 | (< (point) (point-max))) | |
1851 | (let ((token-end (nxml-token-after))) | |
1852 | (goto-char (cond ((or (memq xmltok-type '(end-tag | |
1853 | partial-end-tag)) | |
1854 | (and (memq xmltok-type | |
1855 | '(empty-element | |
1856 | partial-empty-element)) | |
1857 | (< xmltok-start (point)))) | |
1858 | token-end) | |
1859 | ((nxml-scan-element-forward | |
1860 | (if (and (eq xmltok-type 'start-tag) | |
1861 | (= (point) xmltok-start)) | |
1862 | xmltok-start | |
1863 | token-end) | |
1864 | t)) | |
1865 | (t (error "No parent element"))))) | |
1866 | (setq arg (1- arg))) | |
1867 | (nxml-scan-error | |
1868 | (goto-char (cadr err)) | |
1869 | (apply 'error (cddr err)))))) | |
1870 | ||
1871 | (defun nxml-backward-up-element (&optional arg) | |
1872 | (interactive "p") | |
1873 | (or arg (setq arg 1)) | |
1874 | (if (< arg 0) | |
1875 | (nxml-up-element (- arg)) | |
1876 | (condition-case err | |
1877 | (while (and (> arg 0) | |
1878 | (< (point-min) (point))) | |
1879 | (let ((token-end (nxml-token-before))) | |
1880 | (goto-char (cond ((or (memq xmltok-type '(start-tag | |
1881 | partial-start-tag)) | |
1882 | (and (memq xmltok-type | |
1883 | '(empty-element | |
1884 | partial-empty-element)) | |
1885 | (< (point) token-end))) | |
1886 | xmltok-start) | |
1887 | ((nxml-scan-element-backward | |
1888 | (if (and (eq xmltok-type 'end-tag) | |
1889 | (= (point) token-end)) | |
1890 | token-end | |
1891 | xmltok-start) | |
1892 | t) | |
1893 | xmltok-start) | |
1894 | (t (error "No parent element"))))) | |
1895 | (setq arg (1- arg))) | |
1896 | (nxml-scan-error | |
1897 | (goto-char (cadr err)) | |
1898 | (apply 'error (cddr err)))))) | |
1899 | ||
1900 | (defun nxml-down-element (&optional arg) | |
1901 | "Move forward down into the content of an element. | |
1902 | With ARG, do this that many times. | |
1903 | Negative ARG means move backward but still down." | |
1904 | (interactive "p") | |
1905 | (or arg (setq arg 1)) | |
1906 | (if (< arg 0) | |
1907 | (nxml-backward-down-element (- arg)) | |
1908 | (while (> arg 0) | |
1909 | (goto-char | |
1910 | (let ((token-end (nxml-token-after))) | |
1911 | (save-excursion | |
1912 | (goto-char token-end) | |
1913 | (while (progn | |
1914 | (when (memq xmltok-type '(nil end-tag partial-end-tag)) | |
1915 | (error "No following start-tags in this element")) | |
1916 | (not (memq xmltok-type '(start-tag partial-start-tag)))) | |
1917 | (nxml-tokenize-forward)) | |
1918 | (point)))) | |
1919 | (setq arg (1- arg))))) | |
1920 | ||
1921 | (defun nxml-backward-down-element (&optional arg) | |
1922 | (interactive "p") | |
1923 | (or arg (setq arg 1)) | |
1924 | (if (< arg 0) | |
1925 | (nxml-down-element (- arg)) | |
1926 | (while (> arg 0) | |
1927 | (goto-char | |
1928 | (save-excursion | |
1929 | (nxml-token-before) | |
1930 | (goto-char xmltok-start) | |
1931 | (while (progn | |
1932 | (when (memq xmltok-type '(start-tag | |
1933 | partial-start-tag | |
1934 | prolog | |
1935 | nil)) | |
1936 | (error "No preceding end-tags in this element")) | |
1937 | (not (memq xmltok-type '(end-tag partial-end-tag)))) | |
1938 | (if (or (<= (point) nxml-prolog-end) | |
1939 | (not (search-backward "<" nxml-prolog-end t))) | |
1940 | (setq xmltok-type nil) | |
1941 | (nxml-move-outside-backwards) | |
1942 | (xmltok-forward))) | |
1943 | xmltok-start)) | |
1944 | (setq arg (1- arg))))) | |
1945 | ||
1946 | (defun nxml-forward-element (&optional arg) | |
1947 | "Move forward over one element. | |
1948 | With ARG, do it that many times. | |
1949 | Negative ARG means move backward." | |
1950 | (interactive "p") | |
1951 | (or arg (setq arg 1)) | |
1952 | (if (< arg 0) | |
1953 | (nxml-backward-element (- arg)) | |
1954 | (condition-case err | |
1955 | (while (and (> arg 0) | |
1956 | (< (point) (point-max))) | |
1957 | (goto-char | |
1958 | (or (nxml-scan-element-forward (nxml-token-before)) | |
1959 | (error "No more elements"))) | |
1960 | (setq arg (1- arg))) | |
1961 | (nxml-scan-error | |
1962 | (goto-char (cadr err)) | |
1963 | (apply 'error (cddr err)))))) | |
1964 | ||
1965 | (defun nxml-backward-element (&optional arg) | |
1966 | "Move backward over one element. | |
1967 | With ARG, do it that many times. | |
1968 | Negative ARG means move forward." | |
1969 | (interactive "p") | |
1970 | (or arg (setq arg 1)) | |
1971 | (if (< arg 0) | |
1972 | (nxml-forward-element (- arg)) | |
1973 | (condition-case err | |
1974 | (while (and (> arg 0) | |
1975 | (< (point-min) (point))) | |
1976 | (goto-char | |
1977 | (or (and (nxml-scan-element-backward (progn | |
1978 | (nxml-token-after) | |
1979 | xmltok-start)) | |
1980 | xmltok-start) | |
1981 | (error "No preceding elements"))) | |
1982 | (setq arg (1- arg))) | |
1983 | (nxml-scan-error | |
1984 | (goto-char (cadr err)) | |
1985 | (apply 'error (cddr err)))))) | |
1986 | ||
1987 | (defun nxml-mark-token-after () | |
1988 | (interactive) | |
1989 | (push-mark (nxml-token-after) nil t) | |
1990 | (goto-char xmltok-start) | |
1991 | (message "Marked %s" xmltok-type)) | |
1992 | ||
1993 | ;;; Paragraphs | |
1994 | ||
1995 | (defun nxml-mark-paragraph () | |
1996 | "Put point at beginning of this paragraph, mark at end. | |
1997 | The paragraph marked is the one that contains point or follows point." | |
1998 | (interactive) | |
1999 | (nxml-forward-paragraph) | |
2000 | (push-mark nil t t) | |
2001 | (nxml-backward-paragraph)) | |
2002 | ||
2003 | (defun nxml-forward-paragraph (&optional arg) | |
2004 | (interactive "p") | |
2005 | (or arg (setq arg 1)) | |
2006 | (cond ((< arg 0) | |
2007 | (nxml-backward-paragraph (- arg))) | |
2008 | ((> arg 0) | |
2009 | (forward-line 0) | |
2010 | (while (and (nxml-forward-single-paragraph) | |
2011 | (> (setq arg (1- arg)) 0)))))) | |
2012 | ||
2013 | (defun nxml-backward-paragraph (&optional arg) | |
2014 | (interactive "p") | |
2015 | (or arg (setq arg 1)) | |
2016 | (cond ((< arg 0) | |
2017 | (nxml-forward-paragraph (- arg))) | |
2018 | ((> arg 0) | |
2019 | (unless (bolp) | |
2020 | (let ((inhibit-field-text-motion t)) | |
2021 | (end-of-line))) | |
2022 | (while (and (nxml-backward-single-paragraph) | |
2023 | (> (setq arg (1- arg)) 0)))))) | |
2024 | ||
2025 | (defun nxml-forward-single-paragraph () | |
2026 | "Move forward over a single paragraph. | |
2027 | Return nil at end of buffer, t otherwise." | |
2028 | (let* ((token-end (nxml-token-after)) | |
2029 | (offset (- (point) xmltok-start)) | |
2030 | pos had-data) | |
2031 | (goto-char token-end) | |
2032 | (while (and (< (point) (point-max)) | |
2033 | (not (setq pos | |
2034 | (nxml-paragraph-end-pos had-data offset)))) | |
2035 | (when (nxml-token-contains-data-p offset) | |
2036 | (setq had-data t)) | |
2037 | (nxml-tokenize-forward) | |
2038 | (setq offset 0)) | |
2039 | (when pos (goto-char pos)))) | |
2040 | ||
2041 | (defun nxml-backward-single-paragraph () | |
2042 | "Move backward over a single paragraph. | |
2043 | Return nil at start of buffer, t otherwise." | |
2044 | (let* ((token-end (nxml-token-before)) | |
2045 | (offset (- token-end (point))) | |
2046 | (last-tag-pos xmltok-start) | |
2047 | pos had-data last-data-pos) | |
2048 | (goto-char token-end) | |
2049 | (unless (setq pos (nxml-paragraph-start-pos nil offset)) | |
2050 | (setq had-data (nxml-token-contains-data-p nil offset)) | |
2051 | (goto-char xmltok-start) | |
2052 | (while (and (not pos) (< (point-min) (point))) | |
2053 | (cond ((search-backward "<" nxml-prolog-end t) | |
2054 | (nxml-move-outside-backwards) | |
2055 | (save-excursion | |
2056 | (while (< (point) last-tag-pos) | |
2057 | (xmltok-forward) | |
2058 | (when (and (not had-data) (nxml-token-contains-data-p)) | |
2059 | (setq pos nil) | |
2060 | (setq last-data-pos xmltok-start)) | |
2061 | (let ((tem (nxml-paragraph-start-pos had-data 0))) | |
2062 | (when tem (setq pos tem))))) | |
2063 | (when (and (not had-data) last-data-pos (not pos)) | |
2064 | (setq had-data t) | |
2065 | (save-excursion | |
2066 | (while (< (point) last-data-pos) | |
2067 | (xmltok-forward)) | |
2068 | (let ((tem (nxml-paragraph-start-pos had-data 0))) | |
2069 | (when tem (setq pos tem))))) | |
2070 | (setq last-tag-pos (point))) | |
2071 | (t (goto-char (point-min)))))) | |
2072 | (when pos (goto-char pos)))) | |
2073 | ||
2074 | (defun nxml-token-contains-data-p (&optional start end) | |
2075 | (setq start (+ xmltok-start (or start 0))) | |
2076 | (setq end (- (point) (or end 0))) | |
2077 | (when (eq xmltok-type 'cdata-section) | |
2078 | (setq start (max start (+ xmltok-start 9))) | |
2079 | (setq end (min end (- (point) 3)))) | |
2080 | (or (and (eq xmltok-type 'data) | |
2081 | (eq start xmltok-start) | |
2082 | (eq end (point))) | |
2083 | (eq xmltok-type 'char-ref) | |
2084 | (and (memq xmltok-type '(data cdata-section)) | |
2085 | (< start end) | |
2086 | (save-excursion | |
2087 | (goto-char start) | |
2088 | (re-search-forward "[^ \t\r\n]" end t))))) | |
2089 | ||
2090 | (defun nxml-paragraph-end-pos (had-data offset) | |
2091 | "Return the position of the paragraph end if contained in the current token. | |
2092 | Return nil if the current token does not contain the paragraph end. | |
2093 | Only characters after OFFSET from the start of the token are eligible. | |
2094 | HAD-DATA says whether there have been non-whitespace data characters yet." | |
2095 | (cond ((not had-data) | |
2096 | (cond ((memq xmltok-type '(data cdata-section)) | |
2097 | (save-excursion | |
2098 | (let ((end (point))) | |
2099 | (goto-char (+ xmltok-start | |
2100 | (max (if (eq xmltok-type 'cdata-section) | |
2101 | 9 | |
2102 | 0) | |
2103 | offset))) | |
2104 | (and (re-search-forward "[^ \t\r\n]" end t) | |
2105 | (re-search-forward "^[ \t]*$" end t) | |
2106 | (match-beginning 0))))) | |
2107 | ((and (eq xmltok-type 'comment) | |
2108 | (nxml-token-begins-line-p) | |
2109 | (nxml-token-ends-line-p)) | |
2110 | (save-excursion | |
2111 | (let ((end (point))) | |
2112 | (goto-char (+ xmltok-start (max 4 offset))) | |
2113 | (when (re-search-forward "[^ \t\r\n]" (- end 3) t) | |
2114 | (if (re-search-forward "^[ \t]*$" end t) | |
2115 | (match-beginning 0) | |
2116 | (goto-char (- end 3)) | |
2117 | (skip-chars-backward " \t") | |
2118 | (unless (bolp) | |
2119 | (beginning-of-line 2)) | |
2120 | (point)))))))) | |
2121 | ((memq xmltok-type '(data space cdata-section)) | |
2122 | (save-excursion | |
2123 | (let ((end (point))) | |
2124 | (goto-char (+ xmltok-start offset)) | |
2125 | (and (re-search-forward "^[ \t]*$" end t) | |
2126 | (match-beginning 0))))) | |
2127 | ((and (memq xmltok-type '(start-tag | |
2128 | end-tag | |
2129 | empty-element | |
2130 | comment | |
2131 | processing-instruction | |
2132 | entity-ref)) | |
2133 | (nxml-token-begins-line-p) | |
2134 | (nxml-token-ends-line-p)) | |
2135 | (save-excursion | |
2136 | (goto-char xmltok-start) | |
2137 | (skip-chars-backward " \t") | |
2138 | (point))) | |
2139 | ((and (eq xmltok-type 'end-tag) | |
2140 | (looking-at "[ \t]*$") | |
2141 | (not (nxml-in-mixed-content-p t))) | |
2142 | (save-excursion | |
2143 | (or (search-forward "\n" nil t) | |
2144 | (point-max)))))) | |
2145 | ||
2146 | (defun nxml-paragraph-start-pos (had-data offset) | |
2147 | "Return the position of the paragraph start if contained in the current token. | |
2148 | Return nil if the current token does not contain the paragraph start. | |
2149 | Only characters before OFFSET from the end of the token are eligible. | |
2150 | HAD-DATA says whether there have been non-whitespace data characters yet." | |
2151 | (cond ((not had-data) | |
2152 | (cond ((memq xmltok-type '(data cdata-section)) | |
2153 | (save-excursion | |
2154 | (goto-char (- (point) | |
2155 | (max (if (eq xmltok-type 'cdata-section) | |
2156 | 3 | |
2157 | 0) | |
2158 | offset))) | |
2159 | (and (re-search-backward "[^ \t\r\n]" xmltok-start t) | |
2160 | (re-search-backward "^[ \t]*$" xmltok-start t) | |
2161 | (match-beginning 0)))) | |
2162 | ((and (eq xmltok-type 'comment) | |
2163 | (nxml-token-ends-line-p) | |
2164 | (nxml-token-begins-line-p)) | |
2165 | (save-excursion | |
2166 | (goto-char (- (point) (max 3 offset))) | |
2167 | (when (and (< (+ xmltok-start 4) (point)) | |
2168 | (re-search-backward "[^ \t\r\n]" | |
2169 | (+ xmltok-start 4) | |
2170 | t)) | |
2171 | (if (re-search-backward "^[ \t]*$" xmltok-start t) | |
2172 | (match-beginning 0) | |
2173 | (goto-char xmltok-start) | |
2174 | (if (looking-at "<!--[ \t]*\n") | |
2175 | (match-end 0) | |
2176 | (skip-chars-backward " \t") | |
2177 | (point)))))))) | |
2178 | ((memq xmltok-type '(data space cdata-section)) | |
2179 | (save-excursion | |
2180 | (goto-char (- (point) offset)) | |
2181 | (and (re-search-backward "^[ \t]*$" xmltok-start t) | |
2182 | (match-beginning 0)))) | |
2183 | ((and (memq xmltok-type '(start-tag | |
2184 | end-tag | |
2185 | empty-element | |
2186 | comment | |
2187 | processing-instruction | |
2188 | entity-ref)) | |
2189 | (nxml-token-ends-line-p) | |
2190 | (nxml-token-begins-line-p)) | |
2191 | (or (search-forward "\n" nil t) | |
2192 | (point-max))) | |
2193 | ((and (eq xmltok-type 'start-tag) | |
2194 | (nxml-token-begins-line-p) | |
2195 | (not (save-excursion | |
2196 | (goto-char xmltok-start) | |
2197 | (nxml-in-mixed-content-p nil)))) | |
2198 | (save-excursion | |
2199 | (goto-char xmltok-start) | |
2200 | (skip-chars-backward " \t") | |
2201 | ;; include any blank line before | |
2202 | (or (and (eq (char-before) ?\n) | |
2203 | (save-excursion | |
2204 | (goto-char (1- (point))) | |
2205 | (skip-chars-backward " \t") | |
2206 | (and (bolp) (point)))) | |
2207 | (point)))))) | |
2208 | ||
2209 | (defun nxml-token-ends-line-p () (looking-at "[ \t]*$")) | |
2210 | ||
2211 | (defun nxml-token-begins-line-p () | |
2212 | (save-excursion | |
2213 | (goto-char xmltok-start) | |
2214 | (skip-chars-backward " \t") | |
2215 | (bolp))) | |
2216 | ||
2217 | (defun nxml-in-mixed-content-p (endp) | |
2218 | "Return non-nil if point is in mixed content. | |
2219 | Point must be after an end-tag or before a start-tag. | |
2220 | ENDP is t in the former case, nil in the latter." | |
2221 | (let (matching-tag-pos) | |
2222 | (cond ((not (run-hook-with-args-until-failure | |
2223 | 'nxml-in-mixed-content-hook)) | |
2224 | nil) | |
2225 | ;; See if the matching tag does not start or end a line. | |
2226 | ((condition-case err | |
2227 | (progn | |
2228 | (setq matching-tag-pos | |
2229 | (xmltok-save | |
2230 | (if endp | |
2231 | (and (nxml-scan-element-backward (point)) | |
2232 | xmltok-start) | |
2233 | (nxml-scan-element-forward (point))))) | |
2234 | (and matching-tag-pos | |
2235 | (save-excursion | |
2236 | (goto-char matching-tag-pos) | |
2237 | (not (if endp | |
2238 | (progn | |
2239 | (skip-chars-backward " \t") | |
2240 | (bolp)) | |
2241 | (looking-at "[ \t]*$")))))) | |
2242 | (nxml-scan-error nil)) | |
2243 | t) | |
2244 | ;; See if there's data at the same level. | |
2245 | ((let (start end) | |
2246 | (if endp | |
2247 | (setq start matching-tag-pos | |
2248 | end (point)) | |
2249 | (setq start (point) | |
2250 | end matching-tag-pos)) | |
2251 | (save-excursion | |
2252 | (or (when start | |
2253 | (goto-char start) | |
2254 | (nxml-preceding-sibling-data-p)) | |
2255 | (when end | |
2256 | (goto-char end) | |
2257 | (nxml-following-sibling-data-p))))) | |
2258 | t) | |
2259 | ;; Otherwise, treat as not mixed | |
2260 | (t nil)))) | |
2261 | ||
2262 | (defun nxml-preceding-sibling-data-p () | |
2263 | "Return non-nil if there is a previous sibling that is data." | |
2264 | (let ((lim (max (- (point) nxml-mixed-scan-distance) | |
2265 | nxml-prolog-end)) | |
2266 | (level 0) | |
2267 | found end) | |
2268 | (xmltok-save | |
2269 | (save-excursion | |
2270 | (while (and (< lim (point)) | |
2271 | (>= level 0) | |
2272 | (not found) | |
2273 | (progn | |
2274 | (setq end (point)) | |
2275 | (search-backward "<" lim t))) | |
2276 | (nxml-move-outside-backwards) | |
2277 | (save-excursion | |
2278 | (xmltok-forward) | |
2279 | (let ((prev-level level)) | |
2280 | (cond ((eq xmltok-type 'end-tag) | |
2281 | (setq level (1+ level))) | |
2282 | ((eq xmltok-type 'start-tag) | |
2283 | (setq level (1- level)))) | |
2284 | (when (eq prev-level 0) | |
2285 | (while (and (< (point) end) (not found)) | |
2286 | (xmltok-forward) | |
2287 | (when (memq xmltok-type '(data cdata-section char-ref)) | |
2288 | (setq found t))))))))) | |
2289 | found)) | |
2290 | ||
2291 | (defun nxml-following-sibling-data-p () | |
2292 | (let ((lim (min (+ (point) nxml-mixed-scan-distance) | |
2293 | (point-max))) | |
2294 | (level 0) | |
2295 | found) | |
2296 | (xmltok-save | |
2297 | (save-excursion | |
2298 | (while (and (< (point) lim) | |
2299 | (>= level 0) | |
2300 | (nxml-tokenize-forward) | |
2301 | (not found)) | |
2302 | (cond ((eq xmltok-type 'start-tag) | |
2303 | (setq level (1+ level))) | |
2304 | ((eq xmltok-type 'end-tag) | |
2305 | (setq level (1- level))) | |
2306 | ((and (eq level 0) | |
2307 | (memq xmltok-type '(data cdata-section char-ref))) | |
2308 | (setq found t)))))) | |
2309 | found)) | |
2310 | ||
2311 | ;;; Filling | |
2312 | ||
2313 | (defun nxml-do-fill-paragraph (arg) | |
2314 | (let (fill-paragraph-function | |
2315 | fill-prefix | |
2316 | start end) | |
2317 | (save-excursion | |
2318 | (nxml-forward-paragraph) | |
2319 | (setq end (point)) | |
2320 | (nxml-backward-paragraph) | |
2321 | (skip-chars-forward " \t\r\n") | |
2322 | (setq start (point)) | |
2323 | (beginning-of-line) | |
2324 | (setq fill-prefix (buffer-substring-no-properties (point) start)) | |
2325 | (when (and (not (nxml-get-inside (point))) | |
2326 | (looking-at "[ \t]*<!--")) | |
2327 | (setq fill-prefix (concat fill-prefix " "))) | |
2328 | (fill-region-as-paragraph start end arg)) | |
2329 | (skip-line-prefix fill-prefix) | |
2330 | fill-prefix)) | |
2331 | ||
2332 | (defun nxml-newline-and-indent (soft) | |
2333 | (delete-horizontal-space) | |
2334 | (if soft (insert-and-inherit ?\n) (newline 1)) | |
2335 | (nxml-indent-line)) | |
2336 | ||
2337 | ||
2338 | ;;; Dynamic markup | |
2339 | ||
2340 | (defvar nxml-dynamic-markup-prev-pos nil) | |
2341 | (defvar nxml-dynamic-markup-prev-lengths nil) | |
2342 | (defvar nxml-dynamic-markup-prev-found-marker nil) | |
2343 | (defvar nxml-dynamic-markup-prev-start-tags (make-hash-table :test 'equal)) | |
2344 | ||
2345 | (defun nxml-dynamic-markup-word () | |
2346 | "Dynamically markup the word before point. | |
2347 | This attempts to find a tag to put around the word before point based | |
2348 | on the contents of the current buffer. The end-tag will be inserted at | |
2349 | point. The start-tag will be inserted at or before the beginning of | |
2350 | the word before point; the contents of the current buffer is used to | |
2351 | decide where. | |
2352 | ||
2353 | It works in a similar way to \\[dabbrev-expand]. It searches first | |
2354 | backwards from point, then forwards from point for an element whose | |
2355 | content is a string which matches the contents of the buffer before | |
2356 | point and which includes at least the word before point. It then | |
2357 | copies the start- and end-tags from that element and uses them to | |
2358 | surround the matching string before point. | |
2359 | ||
2360 | Repeating \\[nxml-dynamic-markup-word] immediately after successful | |
2361 | \\[nxml-dynamic-markup-word] removes the previously inserted markup | |
2362 | and attempts to find another possible way to do the markup." | |
2363 | (interactive "*") | |
2364 | (let (search-start-pos done) | |
2365 | (if (and (integerp nxml-dynamic-markup-prev-pos) | |
2366 | (= nxml-dynamic-markup-prev-pos (point)) | |
2367 | (eq last-command this-command) | |
2368 | nxml-dynamic-markup-prev-lengths) | |
2369 | (let* ((end-tag-open-pos | |
2370 | (- nxml-dynamic-markup-prev-pos | |
2371 | (nth 2 nxml-dynamic-markup-prev-lengths))) | |
2372 | (start-tag-close-pos | |
2373 | (- end-tag-open-pos | |
2374 | (nth 1 nxml-dynamic-markup-prev-lengths))) | |
2375 | (start-tag-open-pos | |
2376 | (- start-tag-close-pos | |
2377 | (nth 0 nxml-dynamic-markup-prev-lengths)))) | |
2378 | (delete-region end-tag-open-pos nxml-dynamic-markup-prev-pos) | |
2379 | (delete-region start-tag-open-pos start-tag-close-pos) | |
2380 | (setq search-start-pos | |
2381 | (marker-position nxml-dynamic-markup-prev-found-marker))) | |
2382 | (clrhash nxml-dynamic-markup-prev-start-tags)) | |
2383 | (setq nxml-dynamic-markup-prev-pos nil) | |
2384 | (setq nxml-dynamic-markup-prev-lengths nil) | |
2385 | (setq nxml-dynamic-markup-prev-found-marker nil) | |
2386 | (goto-char | |
2387 | (save-excursion | |
2388 | (let* ((pos (point)) | |
2389 | (word (progn | |
2390 | (backward-word 1) | |
2391 | (unless (< (point) pos) | |
2392 | (error "No word to markup")) | |
2393 | (buffer-substring-no-properties (point) pos))) | |
2394 | (search (concat word "</")) | |
2395 | done) | |
2396 | (when search-start-pos | |
2397 | (goto-char search-start-pos)) | |
2398 | (while (and (not done) | |
2399 | (or (and (< (point) pos) | |
2400 | (or (search-backward search nil t) | |
2401 | (progn (goto-char pos) nil))) | |
2402 | (search-forward search nil t))) | |
2403 | (goto-char (- (match-end 0) 2)) | |
2404 | (setq done (nxml-try-copy-markup pos))) | |
2405 | (or done | |
2406 | (error (if (zerop (hash-table-count | |
2407 | nxml-dynamic-markup-prev-start-tags)) | |
2408 | "No possible markup found for `%s'" | |
2409 | "No more markup possibilities found for `%s'") | |
2410 | word))))))) | |
2411 | ||
2412 | (defun nxml-try-copy-markup (word-end-pos) | |
2413 | (save-excursion | |
2414 | (let ((end-tag-pos (point))) | |
2415 | (when (and (not (nxml-get-inside end-tag-pos)) | |
2416 | (search-backward "<" nil t) | |
2417 | (not (nxml-get-inside (point)))) | |
2418 | (xmltok-forward) | |
2419 | (when (and (eq xmltok-type 'start-tag) | |
2420 | (< (point) end-tag-pos)) | |
2421 | (let* ((start-tag-close-pos (point)) | |
2422 | (start-tag | |
2423 | (buffer-substring-no-properties xmltok-start | |
2424 | start-tag-close-pos)) | |
2425 | (words | |
2426 | (nreverse | |
2427 | (split-string | |
2428 | (buffer-substring-no-properties start-tag-close-pos | |
2429 | end-tag-pos) | |
2430 | "[ \t\r\n]+")))) | |
2431 | (goto-char word-end-pos) | |
2432 | (while (and words | |
2433 | (re-search-backward (concat | |
2434 | (regexp-quote (car words)) | |
2435 | "\\=") | |
2436 | nil | |
2437 | t)) | |
2438 | (setq words (cdr words)) | |
2439 | (skip-chars-backward " \t\r\n")) | |
2440 | (when (and (not words) | |
2441 | (progn | |
2442 | (skip-chars-forward " \t\r\n") | |
2443 | (not (gethash (cons (point) start-tag) | |
2444 | nxml-dynamic-markup-prev-start-tags))) | |
2445 | (or (< end-tag-pos (point)) | |
2446 | (< word-end-pos xmltok-start))) | |
2447 | (setq nxml-dynamic-markup-prev-found-marker | |
2448 | (copy-marker end-tag-pos t)) | |
2449 | (puthash (cons (point) start-tag) | |
2450 | t | |
2451 | nxml-dynamic-markup-prev-start-tags) | |
2452 | (setq nxml-dynamic-markup-prev-lengths | |
2453 | (list (- start-tag-close-pos xmltok-start) | |
2454 | (- word-end-pos (point)) | |
2455 | (+ (- xmltok-name-end xmltok-start) 2))) | |
2456 | (let ((name (xmltok-start-tag-qname))) | |
2457 | (insert start-tag) | |
2458 | (goto-char (+ word-end-pos | |
2459 | (- start-tag-close-pos xmltok-start))) | |
2460 | (insert "</" name ">") | |
2461 | (setq nxml-dynamic-markup-prev-pos (point)))))))))) | |
2462 | ||
2463 | ||
2464 | ;;; Character names | |
2465 | ||
2466 | (defvar nxml-char-name-ignore-case nil) | |
2467 | ||
2468 | (defvar nxml-char-name-alist nil | |
2469 | "Alist of character names. | |
2470 | Each member of the list has the form (NAME CODE . NAMESET), | |
2471 | where NAME is a string naming a character, NAMESET is a symbol | |
2472 | identifying a set of names and CODE is an integer specifying the | |
2473 | Unicode scalar value of the named character. | |
2474 | The NAME will only be used for completion if NAMESET has | |
2475 | a non-nil `nxml-char-name-set-enabled' property. | |
2476 | If NAMESET does does not have `nxml-char-name-set-defined' property, | |
2477 | then it must have a `nxml-char-name-set-file' property and `load' | |
2478 | will be applied to the value of this property if the nameset | |
2479 | is enabled.") | |
2480 | ||
2481 | (defvar nxml-char-name-table (make-hash-table :test 'eq) | |
2482 | "Hash table for mapping char codes to names. | |
2483 | Each key is a Unicode scalar value. | |
2484 | Each value is a list of pairs of the form (NAMESET . NAME), | |
2485 | where NAMESET is a symbol identifying a set of names, | |
2486 | and NAME is a string naming a character.") | |
2487 | ||
2488 | (defvar nxml-autoload-char-name-set-list nil | |
2489 | "List of char namesets that can be autoloaded.") | |
2490 | ||
2491 | (defun nxml-enable-char-name-set (nameset) | |
2492 | (put nameset 'nxml-char-name-set-enabled t)) | |
2493 | ||
2494 | (defun nxml-disable-char-name-set (nameset) | |
2495 | (put nameset 'nxml-char-name-set-enabled nil)) | |
2496 | ||
2497 | (defun nxml-char-name-set-enabled-p (nameset) | |
2498 | (get nameset 'nxml-char-name-set-enabled)) | |
2499 | ||
2500 | (defun nxml-autoload-char-name-set (nameset file) | |
2501 | (unless (memq nameset nxml-autoload-char-name-set-list) | |
2502 | (setq nxml-autoload-char-name-set-list | |
2503 | (cons nameset nxml-autoload-char-name-set-list))) | |
2504 | (put nameset 'nxml-char-name-set-file file)) | |
2505 | ||
2506 | (defun nxml-define-char-name-set (nameset alist) | |
2507 | "Define a set of character names. | |
2508 | NAMESET is a symbol identifying the set. | |
2509 | Alist is a list where each member has the form (NAME CODE), | |
2510 | where NAME is a string naming a character and code | |
2511 | is an integer giving the Unicode scalar value of the character." | |
2512 | (when (get nameset 'nxml-char-name-set-defined) | |
2513 | (error "Nameset `%s' already defined" nameset)) | |
2514 | (let ((iter alist)) | |
2515 | (while iter | |
2516 | (let* ((name-code (car iter)) | |
2517 | (name (car name-code)) | |
2518 | (code (cadr name-code))) | |
2519 | (puthash code | |
2520 | (cons (cons nameset name) | |
2521 | (gethash code nxml-char-name-table)) | |
2522 | nxml-char-name-table)) | |
2523 | (setcdr (cdr (car iter)) nameset) | |
2524 | (setq iter (cdr iter)))) | |
2525 | (setq nxml-char-name-alist | |
2526 | (nconc alist nxml-char-name-alist)) | |
2527 | (put nameset 'nxml-char-name-set-defined t)) | |
2528 | ||
2529 | (defun nxml-get-char-name (code) | |
2530 | (mapcar 'nxml-maybe-load-char-name-set nxml-autoload-char-name-set-list) | |
2531 | (let ((names (gethash code nxml-char-name-table)) | |
2532 | name) | |
2533 | (while (and names (not name)) | |
2534 | (if (nxml-char-name-set-enabled-p (caar names)) | |
2535 | (setq name (cdar names)) | |
2536 | (setq names (cdr names)))) | |
2537 | name)) | |
2538 | ||
2539 | (defvar nxml-named-char-history nil) | |
2540 | ||
2541 | (defun nxml-insert-named-char (arg) | |
2542 | "Insert a character using its name. | |
2543 | The name is read from the minibuffer. | |
2544 | Normally, inserts the character as a numeric character reference. | |
2545 | With a prefix argument, inserts the character directly." | |
2546 | (interactive "*P") | |
2547 | (mapcar 'nxml-maybe-load-char-name-set nxml-autoload-char-name-set-list) | |
2548 | (let ((name | |
2549 | (let ((completion-ignore-case nxml-char-name-ignore-case)) | |
2550 | (completing-read "Character name: " | |
2551 | nxml-char-name-alist | |
2552 | (lambda (member) | |
2553 | (get (cddr member) 'nxml-char-name-set-enabled)) | |
2554 | t | |
2555 | nil | |
2556 | 'nxml-named-char-history))) | |
2557 | (alist nxml-char-name-alist) | |
2558 | elt code) | |
2559 | (while (and alist (not code)) | |
2560 | (setq elt (assoc name alist)) | |
2561 | (if (get (cddr elt) 'nxml-char-name-set-enabled) | |
2562 | (setq code (cadr elt)) | |
2563 | (setq alist (cdr (member elt alist))))) | |
2564 | (when code | |
2565 | (insert (if arg | |
2566 | (or (decode-char 'ucs code) | |
2567 | (error "Character %x is not supported by Emacs" | |
2568 | code)) | |
2569 | (format "&#x%X;" code)))))) | |
2570 | ||
2571 | (defun nxml-maybe-load-char-name-set (sym) | |
2572 | (when (and (get sym 'nxml-char-name-set-enabled) | |
2573 | (not (get sym 'nxml-char-name-set-defined)) | |
2574 | (stringp (get sym 'nxml-char-name-set-file))) | |
2575 | (load (get sym 'nxml-char-name-set-file)))) | |
2576 | ||
2577 | (defun nxml-toggle-char-ref-extra-display (arg) | |
2578 | "*Toggle the display of extra information for character references." | |
2579 | (interactive "P") | |
2580 | (let ((new (if (null arg) | |
2581 | (not nxml-char-ref-extra-display) | |
2582 | (> (prefix-numeric-value arg) 0)))) | |
2583 | (when (not (eq new nxml-char-ref-extra-display)) | |
2584 | (setq nxml-char-ref-extra-display new) | |
2585 | (save-excursion | |
2586 | (save-restriction | |
2587 | (widen) | |
2588 | (if nxml-char-ref-extra-display | |
2589 | (nxml-with-unmodifying-text-property-changes | |
2590 | (nxml-clear-fontified (point-min) (point-max))) | |
2591 | (nxml-clear-char-ref-extra-display (point-min) (point-max)))))))) | |
2592 | ||
2593 | (put 'nxml-char-ref 'evaporate t) | |
2594 | ||
2595 | (defun nxml-char-ref-display-extra (start end n) | |
2596 | (when nxml-char-ref-extra-display | |
2597 | (let ((name (nxml-get-char-name n)) | |
2598 | (glyph-string (and nxml-char-ref-display-glyph-flag | |
2599 | (nxml-glyph-display-string n 'nxml-glyph-face))) | |
2600 | ov) | |
2601 | (when (or name glyph-string) | |
2602 | (setq ov (make-overlay start end nil t)) | |
2603 | (overlay-put ov 'category 'nxml-char-ref) | |
2604 | (when name | |
2605 | (overlay-put ov 'help-echo name)) | |
2606 | (when glyph-string | |
2607 | (overlay-put ov | |
2608 | 'after-string | |
2609 | (propertize glyph-string 'face 'nxml-glyph-face))))))) | |
2610 | ||
2611 | (defun nxml-clear-char-ref-extra-display (start end) | |
2612 | (let ((ov (overlays-in start end))) | |
2613 | (while ov | |
2614 | (when (eq (overlay-get (car ov) 'category) 'nxml-char-ref) | |
2615 | (delete-overlay (car ov))) | |
2616 | (setq ov (cdr ov))))) | |
2617 | ||
2618 | ;;; Versioning | |
2619 | ||
2620 | (defun nxml-version () | |
2621 | "Show the version of nXML mode that is being used." | |
2622 | (interactive) | |
2623 | (if nxml-version | |
2624 | (message "nXML mode version %s" nxml-version) | |
2625 | (message "nXML mode version unknown"))) | |
2626 | ||
2627 | ||
2628 | (defun nxml-start-delimiter-length (type) | |
2629 | (or (get type 'nxml-start-delimiter-length) | |
2630 | 0)) | |
2631 | ||
2632 | (put 'cdata-section 'nxml-start-delimiter-length 9) | |
2633 | (put 'comment 'nxml-start-delimiter-length 4) | |
2634 | (put 'processing-instruction 'nxml-start-delimiter-length 2) | |
2635 | (put 'start-tag 'nxml-start-delimiter-length 1) | |
2636 | (put 'empty-element 'nxml-start-delimiter-length 1) | |
2637 | (put 'partial-empty-element 'nxml-start-delimiter-length 1) | |
2638 | (put 'entity-ref 'nxml-start-delimiter-length 1) | |
2639 | (put 'char-ref 'nxml-start-delimiter-length 2) | |
2640 | ||
2641 | (defun nxml-end-delimiter-length (type) | |
2642 | (or (get type 'nxml-end-delimiter-length) | |
2643 | 0)) | |
2644 | ||
2645 | (put 'cdata-section 'nxml-end-delimiter-length 3) | |
2646 | (put 'comment 'nxml-end-delimiter-length 3) | |
2647 | (put 'processing-instruction 'nxml-end-delimiter-length 2) | |
2648 | (put 'start-tag 'nxml-end-delimiter-length 1) | |
2649 | (put 'empty-element 'nxml-end-delimiter-length 2) | |
2650 | (put 'partial-empty-element 'nxml-end-delimiter-length 1) | |
2651 | (put 'entity-ref 'nxml-end-delimiter-length 1) | |
2652 | (put 'char-ref 'nxml-end-delimiter-length 1) | |
2653 | ||
2654 | (defun nxml-token-type-friendly-name (type) | |
2655 | (or (get type 'nxml-friendly-name) | |
2656 | (symbol-name type))) | |
2657 | ||
2658 | (put 'cdata-section 'nxml-friendly-name "CDATA section") | |
2659 | (put 'processing-instruction 'nxml-friendly-name "processing instruction") | |
2660 | (put 'entity-ref 'nxml-friendly-name "entity reference") | |
2661 | (put 'char-ref 'nxml-friendly-name "character reference") | |
2662 | ||
2663 | (provide 'nxml-mode) | |
2664 | ||
ab4c34c6 | 2665 | ;; arch-tag: 8603bc5f-1ef9-4021-b223-322fb2ca708e |
8cd39fb3 | 2666 | ;;; nxml-mode.el ends here |