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1cd7adc6 | 1 | ;;; xml.el --- XML parser |
47db06aa | 2 | |
0d30b337 TTN |
3 | ;; Copyright (C) 2000, 2001, 2002, 2003, 2004, |
4 | ;; 2005 Free Software Foundation, Inc. | |
47db06aa GM |
5 | |
6 | ;; Author: Emmanuel Briot <briot@gnat.com> | |
720058f2 | 7 | ;; Maintainer: Mark A. Hershberger <mah@everybody.org> |
a98e819b | 8 | ;; Keywords: xml, data |
47db06aa GM |
9 | |
10 | ;; This file is part of GNU Emacs. | |
11 | ||
12 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
13 | ;; it under the terms of the GNU General Public License as published by | |
14 | ;; the Free Software Foundation; either version 2, or (at your option) | |
15 | ;; any later version. | |
16 | ||
17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
23 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
086add15 LK |
24 | ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
25 | ;; Boston, MA 02110-1301, USA. | |
47db06aa GM |
26 | |
27 | ;;; Commentary: | |
28 | ||
a98e819b DL |
29 | ;; This file contains a somewhat incomplete non-validating XML parser. It |
30 | ;; parses a file, and returns a list that can be used internally by | |
a1dfa9a3 | 31 | ;; any other Lisp libraries. |
47db06aa GM |
32 | |
33 | ;;; FILE FORMAT | |
34 | ||
a98e819b DL |
35 | ;; The document type declaration may either be ignored or (optionally) |
36 | ;; parsed, but currently the parsing will only accept element | |
a1dfa9a3 | 37 | ;; declarations. The XML file is assumed to be well-formed. In case |
a98e819b DL |
38 | ;; of error, the parsing stops and the XML file is shown where the |
39 | ;; parsing stopped. | |
47db06aa | 40 | ;; |
a98e819b | 41 | ;; It also knows how to ignore comments and processing instructions. |
47db06aa GM |
42 | ;; |
43 | ;; The XML file should have the following format: | |
653558a1 GM |
44 | ;; <node1 attr1="name1" attr2="name2" ...>value |
45 | ;; <node2 attr3="name3" attr4="name4">value2</node2> | |
46 | ;; <node3 attr5="name5" attr6="name6">value3</node3> | |
47db06aa | 47 | ;; </node1> |
a1dfa9a3 | 48 | ;; Of course, the name of the nodes and attributes can be anything. There can |
47db06aa GM |
49 | ;; be any number of attributes (or none), as well as any number of children |
50 | ;; below the nodes. | |
51 | ;; | |
52 | ;; There can be only top level node, but with any number of children below. | |
53 | ||
54 | ;;; LIST FORMAT | |
55 | ||
c7f8d055 SM |
56 | ;; The functions `xml-parse-file', `xml-parse-region' and |
57 | ;; `xml-parse-tag' return a list with the following format: | |
47db06aa GM |
58 | ;; |
59 | ;; xml-list ::= (node node ...) | |
c7f8d055 | 60 | ;; node ::= (qname attribute-list . child_node_list) |
47db06aa GM |
61 | ;; child_node_list ::= child_node child_node ... |
62 | ;; child_node ::= node | string | |
c7f8d055 SM |
63 | ;; qname ::= (:namespace-uri . "name") | "name" |
64 | ;; attribute_list ::= ((qname . "value") (qname . "value") ...) | |
47db06aa GM |
65 | ;; | nil |
66 | ;; string ::= "..." | |
67 | ;; | |
a98e819b DL |
68 | ;; Some macros are provided to ease the parsing of this list. |
69 | ;; Whitespace is preserved. Fixme: There should be a tree-walker that | |
70 | ;; can remove it. | |
47db06aa | 71 | |
c7f8d055 SM |
72 | ;; TODO: |
73 | ;; * xml:base, xml:space support | |
74 | ;; * more complete DOCTYPE parsing | |
75 | ;; * pi support | |
76 | ||
47db06aa GM |
77 | ;;; Code: |
78 | ||
a98e819b DL |
79 | ;; Note that {buffer-substring,match-string}-no-properties were |
80 | ;; formerly used in several places, but that removes composition info. | |
81 | ||
47db06aa GM |
82 | ;;******************************************************************* |
83 | ;;** | |
84 | ;;** Macros to parse the list | |
85 | ;;** | |
86 | ;;******************************************************************* | |
87 | ||
f8ab034e MH |
88 | (defconst xml-undefined-entity "?" |
89 | "What to substitute for undefined entities") | |
90 | ||
6d12a4df MH |
91 | (defvar xml-entity-alist |
92 | '(("lt" . "<") | |
93 | ("gt" . ">") | |
94 | ("apos" . "'") | |
95 | ("quot" . "\"") | |
96 | ("amp" . "&")) | |
97 | "The defined entities. Entities are added to this when the DTD is parsed.") | |
98 | ||
99 | (defvar xml-sub-parser nil | |
100 | "Dynamically set this to a non-nil value if you want to parse an XML fragment.") | |
101 | ||
102 | (defvar xml-validating-parser nil | |
103 | "Set to non-nil to get validity checking.") | |
104 | ||
971489ea | 105 | (defsubst xml-node-name (node) |
47db06aa | 106 | "Return the tag associated with NODE. |
a1dfa9a3 SM |
107 | Without namespace-aware parsing, the tag is a symbol. |
108 | ||
109 | With namespace-aware parsing, the tag is a cons of a string | |
110 | representing the uri of the namespace with the local name of the | |
111 | tag. For example, | |
112 | ||
113 | <foo> | |
114 | ||
115 | would be represented by | |
116 | ||
117 | '(\"\" . \"foo\")." | |
118 | ||
971489ea | 119 | (car node)) |
47db06aa | 120 | |
971489ea | 121 | (defsubst xml-node-attributes (node) |
47db06aa GM |
122 | "Return the list of attributes of NODE. |
123 | The list can be nil." | |
971489ea | 124 | (nth 1 node)) |
47db06aa | 125 | |
971489ea | 126 | (defsubst xml-node-children (node) |
47db06aa GM |
127 | "Return the list of children of NODE. |
128 | This is a list of nodes, and it can be nil." | |
971489ea | 129 | (cddr node)) |
47db06aa GM |
130 | |
131 | (defun xml-get-children (node child-name) | |
132 | "Return the children of NODE whose tag is CHILD-NAME. | |
a1dfa9a3 | 133 | CHILD-NAME should match the value returned by `xml-node-name'." |
971489ea SM |
134 | (let ((match ())) |
135 | (dolist (child (xml-node-children node)) | |
a1dfa9a3 SM |
136 | (if (and (listp child) |
137 | (equal (xml-node-name child) child-name)) | |
138 | (push child match))) | |
971489ea | 139 | (nreverse match))) |
47db06aa | 140 | |
9bcd6a7e | 141 | (defun xml-get-attribute-or-nil (node attribute) |
47db06aa | 142 | "Get from NODE the value of ATTRIBUTE. |
a1dfa9a3 | 143 | Return nil if the attribute was not found. |
9bcd6a7e EZ |
144 | |
145 | See also `xml-get-attribute'." | |
2e9bdf15 | 146 | (cdr (assoc attribute (xml-node-attributes node)))) |
9bcd6a7e EZ |
147 | |
148 | (defsubst xml-get-attribute (node attribute) | |
149 | "Get from NODE the value of ATTRIBUTE. | |
150 | An empty string is returned if the attribute was not found. | |
151 | ||
152 | See also `xml-get-attribute-or-nil'." | |
153 | (or (xml-get-attribute-or-nil node attribute) "")) | |
47db06aa GM |
154 | |
155 | ;;******************************************************************* | |
156 | ;;** | |
157 | ;;** Creating the list | |
158 | ;;** | |
159 | ;;******************************************************************* | |
160 | ||
a98e819b | 161 | ;;;###autoload |
2d42509a | 162 | (defun xml-parse-file (file &optional parse-dtd parse-ns) |
a98e819b DL |
163 | "Parse the well-formed XML file FILE. |
164 | If FILE is already visited, use its buffer and don't kill it. | |
47db06aa | 165 | Returns the top node with all its children. |
2d42509a JB |
166 | If PARSE-DTD is non-nil, the DTD is parsed rather than skipped. |
167 | If PARSE-NS is non-nil, then QNAMES are expanded." | |
653558a1 GM |
168 | (let ((keep)) |
169 | (if (get-file-buffer file) | |
170 | (progn | |
171 | (set-buffer (get-file-buffer file)) | |
172 | (setq keep (point))) | |
a98e819b DL |
173 | (let (auto-mode-alist) ; no need for xml-mode |
174 | (find-file file))) | |
524425ae | 175 | |
653558a1 GM |
176 | (let ((xml (xml-parse-region (point-min) |
177 | (point-max) | |
178 | (current-buffer) | |
2d42509a | 179 | parse-dtd parse-ns))) |
653558a1 GM |
180 | (if keep |
181 | (goto-char keep) | |
182 | (kill-buffer (current-buffer))) | |
183 | xml))) | |
47db06aa | 184 | |
6d12a4df | 185 | |
5ed32352 RS |
186 | (defvar xml-name-re) |
187 | (defvar xml-entity-value-re) | |
0bf41002 | 188 | (defvar xml-att-def-re) |
63b446bc | 189 | (let* ((start-chars (concat "[:alpha:]:_")) |
6d12a4df MH |
190 | (name-chars (concat "-[:digit:]." start-chars)) |
191 | ;;[3] S ::= (#x20 | #x9 | #xD | #xA)+ | |
192 | (whitespace "[ \t\n\r]")) | |
193 | ;;[4] NameStartChar ::= ":" | [A-Z] | "_" | [a-z] | [#xC0-#xD6] | |
194 | ;; | [#xD8-#xF6] | [#xF8-#x2FF] | [#x370-#x37D] | [#x37F-#x1FFF] | |
195 | ;; | [#x200C-#x200D] | [#x2070-#x218F] | [#x2C00-#x2FEF] | [#x3001-#xD7FF] | |
196 | ;; | [#xF900-#xFDCF] | [#xFDF0-#xFFFD] | [#x10000-#xEFFFF] | |
197 | (defvar xml-name-start-char-re (concat "[" start-chars "]")) | |
198 | ;;[4a] NameChar ::= NameStartChar | "-" | "." | [0-9] | #xB7 | [#x0300-#x036F] | [#x203F-#x2040] | |
199 | (defvar xml-name-char-re (concat "[" name-chars "]")) | |
200 | ;;[5] Name ::= NameStartChar (NameChar)* | |
201 | (defvar xml-name-re (concat xml-name-start-char-re xml-name-char-re "*")) | |
202 | ;;[6] Names ::= Name (#x20 Name)* | |
203 | (defvar xml-names-re (concat xml-name-re "\\(?: " xml-name-re "\\)*")) | |
204 | ;;[7] Nmtoken ::= (NameChar)+ | |
205 | (defvar xml-nmtoken-re (concat xml-name-char-re "+")) | |
206 | ;;[8] Nmtokens ::= Nmtoken (#x20 Nmtoken)* | |
207 | (defvar xml-nmtokens-re (concat xml-nmtoken-re "\\(?: " xml-name-re "\\)*")) | |
208 | ;;[66] CharRef ::= '&#' [0-9]+ ';' | '&#x' [0-9a-fA-F]+ ';' | |
209 | (defvar xml-char-ref-re "\\(?:&#[0-9]+;\\|&#x[0-9a-fA-F]+;\\)") | |
210 | ;;[68] EntityRef ::= '&' Name ';' | |
211 | (defvar xml-entity-ref (concat "&" xml-name-re ";")) | |
212 | ;;[69] PEReference ::= '%' Name ';' | |
213 | (defvar xml-pe-reference-re (concat "%" xml-name-re ";")) | |
214 | ;;[67] Reference ::= EntityRef | CharRef | |
215 | (defvar xml-reference-re (concat "\\(?:" xml-entity-ref "\\|" xml-char-ref-re "\\)")) | |
23d519e4 MH |
216 | ;;[10] AttValue ::= '"' ([^<&"] | Reference)* '"' | "'" ([^<&'] | Reference)* "'" |
217 | (defvar xml-att-value-re (concat "\\(?:\"\\(?:[^&\"]\\|" xml-reference-re "\\)*\"\\|" | |
218 | "'\\(?:[^&']\\|" xml-reference-re "\\)*'\\)")) | |
219 | ;;[56] TokenizedType ::= 'ID' [VC: ID] [VC: One ID per Element Type] [VC: ID Attribute Default] | |
220 | ;; | 'IDREF' [VC: IDREF] | |
221 | ;; | 'IDREFS' [VC: IDREF] | |
222 | ;; | 'ENTITY' [VC: Entity Name] | |
223 | ;; | 'ENTITIES' [VC: Entity Name] | |
224 | ;; | 'NMTOKEN' [VC: Name Token] | |
225 | ;; | 'NMTOKENS' [VC: Name Token] | |
226 | (defvar xml-tokenized-type-re "\\(?:ID\\|IDREF\\|IDREFS\\|ENTITY\\|ENTITIES\\|NMTOKEN\\|NMTOKENS\\)") | |
227 | ;;[58] NotationType ::= 'NOTATION' S '(' S? Name (S? '|' S? Name)* S? ')' | |
228 | (defvar xml-notation-type-re (concat "\\(?:NOTATION" whitespace "(" whitespace "*" xml-name-re | |
229 | "\\(?:" whitespace "*|" whitespace "*" xml-name-re "\\)*" whitespace "*)\\)")) | |
230 | ;;[59] Enumeration ::= '(' S? Nmtoken (S? '|' S? Nmtoken)* S? ')' [VC: Enumeration] [VC: No Duplicate Tokens] | |
231 | (defvar xml-enumeration-re (concat "\\(?:(" whitespace "*" xml-nmtoken-re | |
232 | "\\(?:" whitespace "*|" whitespace "*" xml-nmtoken-re "\\)*" | |
233 | whitespace ")\\)")) | |
234 | ;;[57] EnumeratedType ::= NotationType | Enumeration | |
235 | (defvar xml-enumerated-type-re (concat "\\(?:" xml-notation-type-re "\\|" xml-enumeration-re "\\)")) | |
236 | ;;[54] AttType ::= StringType | TokenizedType | EnumeratedType | |
237 | ;;[55] StringType ::= 'CDATA' | |
238 | (defvar xml-att-type-re (concat "\\(?:CDATA\\|" xml-tokenized-type-re "\\|" xml-notation-type-re"\\|" xml-enumerated-type-re "\\)")) | |
239 | ;;[60] DefaultDecl ::= '#REQUIRED' | '#IMPLIED' | (('#FIXED' S)? AttValue) | |
240 | (defvar xml-default-decl-re (concat "\\(?:#REQUIRED\\|#IMPLIED\\|\\(?:#FIXED" whitespace "\\)*" xml-att-value-re "\\)")) | |
241 | ;;[53] AttDef ::= S Name S AttType S DefaultDecl | |
242 | (defvar xml-att-def-re (concat "\\(?:" whitespace "*" xml-name-re | |
243 | whitespace "*" xml-att-type-re | |
244 | whitespace "*" xml-default-decl-re "\\)")) | |
6d12a4df MH |
245 | ;;[9] EntityValue ::= '"' ([^%&"] | PEReference | Reference)* '"' |
246 | ;; | "'" ([^%&'] | PEReference | Reference)* "'" | |
247 | (defvar xml-entity-value-re (concat "\\(?:\"\\(?:[^%&\"]\\|" xml-pe-reference-re | |
248 | "\\|" xml-reference-re "\\)*\"\\|'\\(?:[^%&']\\|" | |
249 | xml-pe-reference-re "\\|" xml-reference-re "\\)*'\\)"))) | |
250 | ;;[75] ExternalID ::= 'SYSTEM' S SystemLiteral | |
251 | ;; | 'PUBLIC' S PubidLiteral S SystemLiteral | |
252 | ;;[76] NDataDecl ::= S 'NDATA' S | |
253 | ;;[73] EntityDef ::= EntityValue| (ExternalID NDataDecl?) | |
254 | ;;[71] GEDecl ::= '<!ENTITY' S Name S EntityDef S? '>' | |
255 | ;;[74] PEDef ::= EntityValue | ExternalID | |
256 | ;;[72] PEDecl ::= '<!ENTITY' S '%' S Name S PEDef S? '>' | |
257 | ;;[70] EntityDecl ::= GEDecl | PEDecl | |
258 | ||
a98e819b DL |
259 | ;; Note that this is setup so that we can do whitespace-skipping with |
260 | ;; `(skip-syntax-forward " ")', inter alia. Previously this was slow | |
261 | ;; compared with `re-search-forward', but that has been fixed. Also | |
262 | ;; note that the standard syntax table contains other characters with | |
263 | ;; whitespace syntax, like NBSP, but they are invalid in contexts in | |
264 | ;; which we might skip whitespace -- specifically, they're not | |
265 | ;; NameChars [XML 4]. | |
266 | ||
267 | (defvar xml-syntax-table | |
268 | (let ((table (make-syntax-table))) | |
269 | ;; Get space syntax correct per XML [3]. | |
270 | (dotimes (c 31) | |
271 | (modify-syntax-entry c "." table)) ; all are space in standard table | |
272 | (dolist (c '(?\t ?\n ?\r)) ; these should be space | |
273 | (modify-syntax-entry c " " table)) | |
274 | ;; For skipping attributes. | |
275 | (modify-syntax-entry ?\" "\"" table) | |
276 | (modify-syntax-entry ?' "\"" table) | |
277 | ;; Non-alnum name chars should be symbol constituents (`-' and `_' | |
278 | ;; are OK by default). | |
279 | (modify-syntax-entry ?. "_" table) | |
280 | (modify-syntax-entry ?: "_" table) | |
281 | ;; XML [89] | |
aaaa8abb MH |
282 | (unless (featurep 'xemacs) |
283 | (dolist (c '(#x00B7 #x02D0 #x02D1 #x0387 #x0640 #x0E46 #x0EC6 #x3005 | |
284 | #x3031 #x3032 #x3033 #x3034 #x3035 #x309D #x309E #x30FC | |
285 | #x30FD #x30FE)) | |
286 | (modify-syntax-entry (decode-char 'ucs c) "w" table))) | |
a98e819b DL |
287 | ;; Fixme: rest of [4] |
288 | table) | |
289 | "Syntax table used by `xml-parse-region'.") | |
290 | ||
291 | ;; XML [5] | |
292 | ;; Note that [:alpha:] matches all multibyte chars with word syntax. | |
ab161457 JPW |
293 | (eval-and-compile |
294 | (defconst xml-name-regexp "[[:alpha:]_:][[:alnum:]._:-]*")) | |
a98e819b DL |
295 | |
296 | ;; Fixme: This needs re-writing to deal with the XML grammar properly, i.e. | |
297 | ;; document ::= prolog element Misc* | |
298 | ;; prolog ::= XMLDecl? Misc* (doctypedecl Misc*)? | |
299 | ||
300 | ;;;###autoload | |
2d42509a | 301 | (defun xml-parse-region (beg end &optional buffer parse-dtd parse-ns) |
47db06aa GM |
302 | "Parse the region from BEG to END in BUFFER. |
303 | If BUFFER is nil, it defaults to the current buffer. | |
304 | Returns the XML list for the region, or raises an error if the region | |
2d42509a | 305 | is not well-formed XML. |
47db06aa | 306 | If PARSE-DTD is non-nil, the DTD is parsed rather than skipped, |
2d42509a JB |
307 | and returned as the first element of the list. |
308 | If PARSE-NS is non-nil, then QNAMES are expanded." | |
a98e819b DL |
309 | (save-restriction |
310 | (narrow-to-region beg end) | |
311 | ;; Use fixed syntax table to ensure regexp char classes and syntax | |
312 | ;; specs DTRT. | |
313 | (with-syntax-table (standard-syntax-table) | |
314 | (let ((case-fold-search nil) ; XML is case-sensitive. | |
315 | xml result dtd) | |
316 | (save-excursion | |
317 | (if buffer | |
318 | (set-buffer buffer)) | |
319 | (goto-char (point-min)) | |
320 | (while (not (eobp)) | |
321 | (if (search-forward "<" nil t) | |
322 | (progn | |
323 | (forward-char -1) | |
34638996 | 324 | (setq result (xml-parse-tag parse-dtd parse-ns)) |
6d12a4df | 325 | (if (and xml result (not xml-sub-parser)) |
a98e819b | 326 | ;; translation of rule [1] of XML specifications |
6d12a4df | 327 | (error "XML: (Not Well-Formed) Only one root tag allowed") |
47db06aa | 328 | (cond |
971489ea | 329 | ((null result)) |
34638996 EZ |
330 | ((and (listp (car result)) |
331 | parse-dtd) | |
971489ea | 332 | (setq dtd (car result)) |
a98e819b DL |
333 | (if (cdr result) ; possible leading comment |
334 | (add-to-list 'xml (cdr result)))) | |
47db06aa | 335 | (t |
a98e819b DL |
336 | (add-to-list 'xml result))))) |
337 | (goto-char (point-max)))) | |
338 | (if parse-dtd | |
339 | (cons dtd (nreverse xml)) | |
340 | (nreverse xml))))))) | |
47db06aa | 341 | |
c7f8d055 | 342 | (defun xml-maybe-do-ns (name default xml-ns) |
a1dfa9a3 SM |
343 | "Perform any namespace expansion. |
344 | NAME is the name to perform the expansion on. | |
c7f8d055 SM |
345 | DEFAULT is the default namespace. XML-NS is a cons of namespace |
346 | names to uris. When namespace-aware parsing is off, then XML-NS | |
347 | is nil. | |
348 | ||
349 | During namespace-aware parsing, any name without a namespace is | |
350 | put into the namespace identified by DEFAULT. nil is used to | |
351 | specify that the name shouldn't be given a namespace." | |
352 | (if (consp xml-ns) | |
353 | (let* ((nsp (string-match ":" name)) | |
354 | (lname (if nsp (substring name (match-end 0)) name)) | |
355 | (prefix (if nsp (substring name 0 (match-beginning 0)) default)) | |
356 | (special (and (string-equal lname "xmlns") (not prefix))) | |
357 | ;; Setting default to nil will insure that there is not | |
358 | ;; matching cons in xml-ns. In which case we | |
359 | (ns (or (cdr (assoc (if special "xmlns" prefix) | |
360 | xml-ns)) | |
6d12a4df | 361 | ""))) |
c7f8d055 SM |
362 | (cons ns (if special "" lname))) |
363 | (intern name))) | |
47db06aa | 364 | |
6d12a4df MH |
365 | (defun xml-parse-fragment (&optional parse-dtd parse-ns) |
366 | "Parse xml-like fragments." | |
367 | (let ((xml-sub-parser t) | |
368 | children) | |
369 | (while (not (eobp)) | |
370 | (let ((bit (xml-parse-tag | |
371 | parse-dtd parse-ns))) | |
372 | (if children | |
373 | (setq children (append (list bit) children)) | |
374 | (if (stringp bit) | |
375 | (setq children (list bit)) | |
376 | (setq children bit))))) | |
377 | (reverse children))) | |
378 | ||
2d42509a | 379 | (defun xml-parse-tag (&optional parse-dtd parse-ns) |
a98e819b | 380 | "Parse the tag at point. |
47db06aa GM |
381 | If PARSE-DTD is non-nil, the DTD of the document, if any, is parsed and |
382 | returned as the first element in the list. | |
2d42509a | 383 | If PARSE-NS is non-nil, then QNAMES are expanded. |
47db06aa | 384 | Returns one of: |
a98e819b DL |
385 | - a list : the matching node |
386 | - nil : the point is not looking at a tag. | |
387 | - a pair : the first element is the DTD, the second is the node." | |
6d12a4df MH |
388 | (let ((xml-validating-parser (or parse-dtd xml-validating-parser)) |
389 | (xml-ns (if (consp parse-ns) | |
2d42509a JB |
390 | parse-ns |
391 | (if parse-ns | |
392 | (list | |
c7f8d055 | 393 | ;; Default for empty prefix is no namespace |
6d12a4df | 394 | (cons "" "") |
c7f8d055 | 395 | ;; "xml" namespace |
6d12a4df | 396 | (cons "xml" "http://www.w3.org/XML/1998/namespace") |
2d42509a | 397 | ;; We need to seed the xmlns namespace |
6d12a4df | 398 | (cons "xmlns" "http://www.w3.org/2000/xmlns/")))))) |
2d42509a JB |
399 | (cond |
400 | ;; Processing instructions (like the <?xml version="1.0"?> tag at the | |
401 | ;; beginning of a document). | |
402 | ((looking-at "<\\?") | |
403 | (search-forward "?>") | |
404 | (skip-syntax-forward " ") | |
405 | (xml-parse-tag parse-dtd xml-ns)) | |
406 | ;; Character data (CDATA) sections, in which no tag should be interpreted | |
407 | ((looking-at "<!\\[CDATA\\[") | |
408 | (let ((pos (match-end 0))) | |
409 | (unless (search-forward "]]>" nil t) | |
6d12a4df | 410 | (error "XML: (Not Well Formed) CDATA section does not end anywhere in the document")) |
ae026110 MH |
411 | (concat |
412 | (buffer-substring pos (match-beginning 0)) | |
413 | (xml-parse-string)))) | |
2d42509a JB |
414 | ;; DTD for the document |
415 | ((looking-at "<!DOCTYPE") | |
6d12a4df MH |
416 | (let ((dtd (xml-parse-dtd parse-ns))) |
417 | (skip-syntax-forward " ") | |
418 | (if xml-validating-parser | |
419 | (cons dtd (xml-parse-tag nil xml-ns)) | |
420 | (xml-parse-tag nil xml-ns)))) | |
2d42509a JB |
421 | ;; skip comments |
422 | ((looking-at "<!--") | |
423 | (search-forward "-->") | |
424 | nil) | |
425 | ;; end tag | |
426 | ((looking-at "</") | |
427 | '()) | |
428 | ;; opening tag | |
429 | ((looking-at "<\\([^/>[:space:]]+\\)") | |
430 | (goto-char (match-end 1)) | |
34638996 EZ |
431 | |
432 | ;; Parse this node | |
2d42509a | 433 | (let* ((node-name (match-string 1)) |
c7f8d055 SM |
434 | ;; Parse the attribute list. |
435 | (attrs (xml-parse-attlist xml-ns)) | |
436 | children pos) | |
437 | ||
438 | ;; add the xmlns:* attrs to our cache | |
439 | (when (consp xml-ns) | |
440 | (dolist (attr attrs) | |
441 | (when (and (consp (car attr)) | |
6d12a4df MH |
442 | (equal "http://www.w3.org/2000/xmlns/" |
443 | (caar attr))) | |
444 | (push (cons (cdar attr) (cdr attr)) | |
c7f8d055 SM |
445 | xml-ns)))) |
446 | ||
43b5fd81 | 447 | (setq children (list attrs (xml-maybe-do-ns node-name "" xml-ns))) |
c7f8d055 | 448 | |
2d42509a JB |
449 | ;; is this an empty element ? |
450 | (if (looking-at "/>") | |
47db06aa | 451 | (progn |
6d12a4df | 452 | (forward-char 2) |
971489ea | 453 | (nreverse children)) |
6d12a4df MH |
454 | |
455 | ;; is this a valid start tag ? | |
456 | (if (eq (char-after) ?>) | |
457 | (progn | |
458 | (forward-char 1) | |
459 | ;; Now check that we have the right end-tag. Note that this | |
460 | ;; one might contain spaces after the tag name | |
461 | (let ((end (concat "</" node-name "\\s-*>"))) | |
462 | (while (not (looking-at end)) | |
463 | (cond | |
464 | ((looking-at "</") | |
465 | (error "XML: (Not Well-Formed) Invalid end tag (expecting %s) at pos %d" | |
466 | node-name (point))) | |
467 | ((= (char-after) ?<) | |
468 | (let ((tag (xml-parse-tag nil xml-ns))) | |
469 | (when tag | |
470 | (push tag children)))) | |
471 | (t | |
472 | (let ((expansion (xml-parse-string))) | |
473 | (setq children | |
474 | (if (stringp expansion) | |
475 | (if (stringp (car children)) | |
476 | ;; The two strings were separated by a comment. | |
aaaa8abb | 477 | (setq children (append (list (concat (car children) expansion)) |
6d12a4df MH |
478 | (cdr children))) |
479 | (setq children (append (list expansion) children))) | |
480 | (setq children (append expansion children)))))))) | |
481 | ||
482 | (goto-char (match-end 0)) | |
483 | (nreverse children))) | |
484 | ;; This was an invalid start tag (Expected ">", but didn't see it.) | |
485 | (error "XML: (Well-Formed) Couldn't parse tag: %s" | |
486 | (buffer-substring (- (point) 10) (+ (point) 1))))))) | |
487 | (t ;; (Not one of PI, CDATA, Comment, End tag, or Start tag) | |
488 | (unless xml-sub-parser ; Usually, we error out. | |
489 | (error "XML: (Well-Formed) Invalid character")) | |
490 | ||
491 | ;; However, if we're parsing incrementally, then we need to deal | |
492 | ;; with stray CDATA. | |
493 | (xml-parse-string))))) | |
494 | ||
495 | (defun xml-parse-string () | |
496 | "Parse the next whatever. Could be a string, or an element." | |
497 | (let* ((pos (point)) | |
498 | (string (progn (if (search-forward "<" nil t) | |
499 | (forward-char -1) | |
500 | (goto-char (point-max))) | |
501 | (buffer-substring pos (point))))) | |
502 | ;; Clean up the string. As per XML specifications, the XML | |
503 | ;; processor should always pass the whole string to the | |
504 | ;; application. But \r's should be replaced: | |
505 | ;; http://www.w3.org/TR/2000/REC-xml-20001006#sec-line-ends | |
506 | (setq pos 0) | |
507 | (while (string-match "\r\n?" string pos) | |
508 | (setq string (replace-match "\n" t t string)) | |
509 | (setq pos (1+ (match-beginning 0)))) | |
510 | ||
511 | (xml-substitute-special string))) | |
47db06aa | 512 | |
c7f8d055 | 513 | (defun xml-parse-attlist (&optional xml-ns) |
a1dfa9a3 SM |
514 | "Return the attribute-list after point. |
515 | Leave point at the first non-blank character after the tag." | |
971489ea | 516 | (let ((attlist ()) |
34638996 | 517 | end-pos name) |
a98e819b DL |
518 | (skip-syntax-forward " ") |
519 | (while (looking-at (eval-when-compile | |
520 | (concat "\\(" xml-name-regexp "\\)\\s-*=\\s-*"))) | |
c7f8d055 SM |
521 | (setq end-pos (match-end 0)) |
522 | (setq name (xml-maybe-do-ns (match-string 1) nil xml-ns)) | |
523 | (goto-char end-pos) | |
47db06aa | 524 | |
a158ff81 JB |
525 | ;; See also: http://www.w3.org/TR/2000/REC-xml-20001006#AVNormalize |
526 | ||
47db06aa GM |
527 | ;; Do we have a string between quotes (or double-quotes), |
528 | ;; or a simple word ? | |
a158ff81 | 529 | (if (looking-at "\"\\([^\"]*\\)\"") |
34638996 | 530 | (setq end-pos (match-end 0)) |
f0ec1711 | 531 | (if (looking-at "'\\([^']*\\)'") |
34638996 | 532 | (setq end-pos (match-end 0)) |
6d12a4df | 533 | (error "XML: (Not Well-Formed) Attribute values must be given between quotes"))) |
47db06aa GM |
534 | |
535 | ;; Each attribute must be unique within a given element | |
536 | (if (assoc name attlist) | |
6d12a4df | 537 | (error "XML: (Not Well-Formed) Each attribute must be unique within an element")) |
524425ae | 538 | |
a158ff81 JB |
539 | ;; Multiple whitespace characters should be replaced with a single one |
540 | ;; in the attributes | |
a98e819b | 541 | (let ((string (match-string 1)) |
a158ff81 | 542 | (pos 0)) |
a98e819b | 543 | (replace-regexp-in-string "\\s-\\{2,\\}" " " string) |
6d12a4df MH |
544 | (let ((expansion (xml-substitute-special string))) |
545 | (unless (stringp expansion) | |
546 | ; We say this is the constraint. It is acctually that | |
547 | ; external entities nor "<" can be in an attribute value. | |
548 | (error "XML: (Not Well-Formed) Entities in attributes cannot expand into elements")) | |
549 | (push (cons name expansion) attlist))) | |
a158ff81 | 550 | |
34638996 | 551 | (goto-char end-pos) |
a98e819b | 552 | (skip-syntax-forward " ")) |
971489ea | 553 | (nreverse attlist))) |
47db06aa GM |
554 | |
555 | ;;******************************************************************* | |
556 | ;;** | |
557 | ;;** The DTD (document type declaration) | |
558 | ;;** The following functions know how to skip or parse the DTD of | |
559 | ;;** a document | |
560 | ;;** | |
561 | ;;******************************************************************* | |
562 | ||
a98e819b DL |
563 | ;; Fixme: This fails at least if the DTD contains conditional sections. |
564 | ||
565 | (defun xml-skip-dtd () | |
566 | "Skip the DTD at point. | |
47db06aa | 567 | This follows the rule [28] in the XML specifications." |
6d12a4df MH |
568 | (let ((xml-validating-parser nil)) |
569 | (xml-parse-dtd))) | |
47db06aa | 570 | |
6d12a4df | 571 | (defun xml-parse-dtd (&optional parse-ns) |
a98e819b DL |
572 | "Parse the DTD at point." |
573 | (forward-char (eval-when-compile (length "<!DOCTYPE"))) | |
574 | (skip-syntax-forward " ") | |
6d12a4df MH |
575 | (if (and (looking-at ">") |
576 | xml-validating-parser) | |
577 | (error "XML: (Validity) Invalid DTD (expecting name of the document)")) | |
524425ae | 578 | |
971489ea | 579 | ;; Get the name of the document |
a98e819b DL |
580 | (looking-at xml-name-regexp) |
581 | (let ((dtd (list (match-string 0) 'dtd)) | |
971489ea | 582 | type element end-pos) |
47db06aa GM |
583 | (goto-char (match-end 0)) |
584 | ||
a98e819b DL |
585 | (skip-syntax-forward " ") |
586 | ;; XML [75] | |
587 | (cond ((looking-at "PUBLIC\\s-+") | |
588 | (goto-char (match-end 0)) | |
589 | (unless (or (re-search-forward | |
590 | "\\=\"\\([[:space:][:alnum:]-'()+,./:=?;!*#@$_%]*\\)\"" | |
591 | nil t) | |
592 | (re-search-forward | |
593 | "\\='\\([[:space:][:alnum:]-()+,./:=?;!*#@$_%]*\\)'" | |
594 | nil t)) | |
6d12a4df | 595 | (error "XML: Missing Public ID")) |
a98e819b | 596 | (let ((pubid (match-string 1))) |
6d12a4df | 597 | (skip-syntax-forward " ") |
a98e819b DL |
598 | (unless (or (re-search-forward "\\='\\([^']*\\)'" nil t) |
599 | (re-search-forward "\\=\"\\([^\"]*\\)\"" nil t)) | |
6d12a4df | 600 | (error "XML: Missing System ID")) |
a98e819b DL |
601 | (push (list pubid (match-string 1) 'public) dtd))) |
602 | ((looking-at "SYSTEM\\s-+") | |
603 | (goto-char (match-end 0)) | |
604 | (unless (or (re-search-forward "\\='\\([^']*\\)'" nil t) | |
605 | (re-search-forward "\\=\"\\([^\"]*\\)\"" nil t)) | |
6d12a4df | 606 | (error "XML: Missing System ID")) |
a98e819b DL |
607 | (push (list (match-string 1) 'system) dtd))) |
608 | (skip-syntax-forward " ") | |
609 | (if (eq ?> (char-after)) | |
610 | (forward-char) | |
a98e819b | 611 | (if (not (eq (char-after) ?\[)) |
6d12a4df | 612 | (error "XML: Bad DTD") |
a98e819b DL |
613 | (forward-char) |
614 | ;; Parse the rest of the DTD | |
23d519e4 | 615 | ;; Fixme: Deal with NOTATION, PIs. |
a98e819b DL |
616 | (while (not (looking-at "\\s-*\\]")) |
617 | (skip-syntax-forward " ") | |
618 | (cond | |
619 | ||
620 | ;; Translation of rule [45] of XML specifications | |
621 | ((looking-at | |
622 | "<!ELEMENT\\s-+\\([[:alnum:].%;]+\\)\\s-+\\([^>]+\\)>") | |
623 | ||
34638996 | 624 | (setq element (match-string 1) |
a98e819b DL |
625 | type (match-string-no-properties 2)) |
626 | (setq end-pos (match-end 0)) | |
627 | ||
628 | ;; Translation of rule [46] of XML specifications | |
629 | (cond | |
630 | ((string-match "^EMPTY[ \t\n\r]*$" type) ;; empty declaration | |
631 | (setq type 'empty)) | |
632 | ((string-match "^ANY[ \t\n\r]*$" type) ;; any type of contents | |
633 | (setq type 'any)) | |
634 | ((string-match "^(\\(.*\\))[ \t\n\r]*$" type) ;; children ([47]) | |
635 | (setq type (xml-parse-elem-type (match-string 1 type)))) | |
636 | ((string-match "^%[^;]+;[ \t\n\r]*$" type) ;; substitution | |
637 | nil) | |
638 | (t | |
6d12a4df | 639 | (if xml-validating-parser |
07f7e9ae | 640 | (error "XML: (Validity) Invalid element type in the DTD")))) |
27720433 | 641 | |
a98e819b | 642 | ;; rule [45]: the element declaration must be unique |
6d12a4df MH |
643 | (if (and (assoc element dtd) |
644 | xml-validating-parser) | |
645 | (error "XML: (Validity) Element declarations must be unique in a DTD (<%s>)" | |
461f3ad0 | 646 | element)) |
a98e819b DL |
647 | |
648 | ;; Store the element in the DTD | |
649 | (push (list element type) dtd) | |
650 | (goto-char end-pos)) | |
23d519e4 MH |
651 | |
652 | ;; Translation of rule [52] of XML specifications | |
653 | ((looking-at (concat "<!ATTLIST[ \t\n\r]*\\(" xml-name-re | |
654 | "\\)[ \t\n\r]*\\(" xml-att-def-re | |
655 | "\\)*[ \t\n\r]*>")) | |
656 | ||
657 | ;; We don't do anything with ATTLIST currently | |
658 | (goto-char (match-end 0))) | |
659 | ||
a98e819b DL |
660 | ((looking-at "<!--") |
661 | (search-forward "-->")) | |
6d12a4df MH |
662 | ((looking-at (concat "<!ENTITY[ \t\n\r]*\\(" xml-name-re |
663 | "\\)[ \t\n\r]*\\(" xml-entity-value-re | |
664 | "\\)[ \t\n\r]*>")) | |
23d519e4 MH |
665 | (let ((name (match-string 1)) |
666 | (value (substring (match-string 2) 1 | |
667 | (- (length (match-string 2)) 1)))) | |
668 | (goto-char (match-end 0)) | |
6d12a4df MH |
669 | (setq xml-entity-alist |
670 | (append xml-entity-alist | |
671 | (list (cons name | |
672 | (with-temp-buffer | |
673 | (insert value) | |
674 | (goto-char (point-min)) | |
675 | (xml-parse-fragment | |
676 | xml-validating-parser | |
677 | parse-ns)))))))) | |
678 | ((or (looking-at (concat "<!ENTITY[ \t\n\r]+\\(" xml-name-re | |
679 | "\\)[ \t\n\r]+SYSTEM[ \t\n\r]+" | |
680 | "\\(\"[^\"]*\"\\|'[^']*'\\)[ \t\n\r]*>")) | |
681 | (looking-at (concat "<!ENTITY[ \t\n\r]+\\(" xml-name-re | |
682 | "\\)[ \t\n\r]+PUBLIC[ \t\n\r]+" | |
683 | "\"[- \r\na-zA-Z0-9'()+,./:=?;!*#@$_%]*\"" | |
684 | "\\|'[- \r\na-zA-Z0-9()+,./:=?;!*#@$_%]*'" | |
685 | "[ \t\n\r]+\\(\"[^\"]*\"\\|'[^']*'\\)" | |
686 | "[ \t\n\r]*>"))) | |
23d519e4 MH |
687 | (let ((name (match-string 1)) |
688 | (file (substring (match-string 2) 1 | |
689 | (- (length (match-string 2)) 1)))) | |
690 | (goto-char (match-end 0)) | |
6d12a4df MH |
691 | (setq xml-entity-alist |
692 | (append xml-entity-alist | |
693 | (list (cons name (with-temp-buffer | |
694 | (insert-file-contents file) | |
695 | (goto-char (point-min)) | |
696 | (xml-parse-fragment | |
697 | xml-validating-parser | |
698 | parse-ns)))))))) | |
63b446bc MH |
699 | ;; skip parameter entity declarations |
700 | ((or (looking-at (concat "<!ENTITY[ \t\n\r]+%[ \t\n\r]+\\(" xml-name-re | |
701 | "\\)[ \t\n\r]+SYSTEM[ \t\n\r]+" | |
702 | "\\(\"[^\"]*\"\\|'[^']*'\\)[ \t\n\r]*>")) | |
703 | (looking-at (concat "<!ENTITY[ \t\n\r]+" | |
704 | "%[ \t\n\r]+" | |
705 | "\\(" xml-name-re "\\)[ \t\n\r]+" | |
706 | "PUBLIC[ \t\n\r]+" | |
707 | "\\(\"[- \r\na-zA-Z0-9'()+,./:=?;!*#@$_%]*\"" | |
708 | "\\|'[- \r\na-zA-Z0-9()+,./:=?;!*#@$_%]*'\\)[ \t\n\r]+" | |
709 | "\\(\"[^\"]+\"\\|'[^']+'\\)" | |
710 | "[ \t\n\r]*>"))) | |
711 | (goto-char (match-end 0))) | |
712 | ;; skip parameter entities | |
713 | ((looking-at (concat "%" xml-name-re ";")) | |
714 | (goto-char (match-end 0))) | |
a98e819b | 715 | (t |
7e0f1123 | 716 | (when xml-validating-parser |
27720433 | 717 | (error "XML: (Validity) Invalid DTD item")))))) |
6d12a4df | 718 | (if (looking-at "\\s-*]>") |
23d519e4 | 719 | (goto-char (match-end 0)))) |
461f3ad0 | 720 | (nreverse dtd))) |
47db06aa GM |
721 | |
722 | (defun xml-parse-elem-type (string) | |
a98e819b | 723 | "Convert element type STRING into a Lisp structure." |
47db06aa GM |
724 | |
725 | (let (elem modifier) | |
726 | (if (string-match "(\\([^)]+\\))\\([+*?]?\\)" string) | |
727 | (progn | |
728 | (setq elem (match-string 1 string) | |
729 | modifier (match-string 2 string)) | |
730 | (if (string-match "|" elem) | |
971489ea | 731 | (setq elem (cons 'choice |
47db06aa GM |
732 | (mapcar 'xml-parse-elem-type |
733 | (split-string elem "|")))) | |
734 | (if (string-match "," elem) | |
971489ea | 735 | (setq elem (cons 'seq |
47db06aa | 736 | (mapcar 'xml-parse-elem-type |
a98e819b | 737 | (split-string elem ","))))))) |
a158ff81 JB |
738 | (if (string-match "[ \t\n\r]*\\([^+*?]+\\)\\([+*?]?\\)" string) |
739 | (setq elem (match-string 1 string) | |
47db06aa GM |
740 | modifier (match-string 2 string)))) |
741 | ||
971489ea SM |
742 | (if (and (stringp elem) (string= elem "#PCDATA")) |
743 | (setq elem 'pcdata)) | |
524425ae | 744 | |
971489ea SM |
745 | (cond |
746 | ((string= modifier "+") | |
747 | (list '+ elem)) | |
748 | ((string= modifier "*") | |
749 | (list '* elem)) | |
750 | ((string= modifier "?") | |
0fa6f70c | 751 | (list '\? elem)) |
971489ea SM |
752 | (t |
753 | elem)))) | |
47db06aa | 754 | |
47db06aa GM |
755 | ;;******************************************************************* |
756 | ;;** | |
757 | ;;** Substituting special XML sequences | |
758 | ;;** | |
759 | ;;******************************************************************* | |
760 | ||
761 | (defun xml-substitute-special (string) | |
a98e819b DL |
762 | "Return STRING, after subsituting entity references." |
763 | ;; This originally made repeated passes through the string from the | |
764 | ;; beginning, which isn't correct, since then either "&amp;" or | |
765 | ;; "&amp;" won't DTRT. | |
47db06aa | 766 | |
6d12a4df MH |
767 | (let ((point 0) |
768 | children end-point) | |
ae026110 | 769 | (while (string-match "&\\([^;]*\\);" string point) |
6d12a4df MH |
770 | (setq end-point (match-end 0)) |
771 | (let* ((this-part (match-string 1 string)) | |
772 | (prev-part (substring string point (match-beginning 0))) | |
773 | (entity (assoc this-part xml-entity-alist)) | |
774 | (expansion | |
775 | (cond ((string-match "#\\([0-9]+\\)" this-part) | |
776 | (let ((c (decode-char | |
777 | 'ucs | |
778 | (string-to-number (match-string 1 this-part))))) | |
779 | (if c (string c)))) | |
780 | ((string-match "#x\\([[:xdigit:]]+\\)" this-part) | |
781 | (let ((c (decode-char | |
782 | 'ucs | |
783 | (string-to-number (match-string 1 this-part) 16)))) | |
784 | (if c (string c)))) | |
785 | (entity | |
786 | (cdr entity)) | |
ae026110 | 787 | ((eq (length this-part) 0) |
27720433 | 788 | (error "XML: (Not Well-Formed) No entity given")) |
6d12a4df | 789 | (t |
f8ab034e | 790 | (if xml-validating-parser |
6d12a4df | 791 | (error "XML: (Validity) Undefined entity `%s'" |
f8ab034e MH |
792 | this-part) |
793 | xml-undefined-entity))))) | |
6d12a4df MH |
794 | |
795 | (cond ((null children) | |
f0d49437 MH |
796 | ;; FIXME: If we have an entity that expands into XML, this won't work. |
797 | (setq children | |
798 | (concat prev-part expansion))) | |
6d12a4df MH |
799 | ((stringp children) |
800 | (if (stringp expansion) | |
801 | (setq children (concat children prev-part expansion)) | |
802 | (setq children (list expansion (concat prev-part children))))) | |
803 | ((and (stringp expansion) | |
804 | (stringp (car children))) | |
805 | (setcar children (concat prev-part expansion (car children)))) | |
806 | ((stringp expansion) | |
807 | (setq children (append (concat prev-part expansion) | |
808 | children))) | |
809 | ((stringp (car children)) | |
810 | (setcar children (concat (car children) prev-part)) | |
811 | (setq children (append expansion children))) | |
812 | (t | |
813 | (setq children (list expansion | |
814 | prev-part | |
815 | children)))) | |
816 | (setq point end-point))) | |
817 | (cond ((stringp children) | |
818 | (concat children (substring string point))) | |
819 | ((stringp (car (last children))) | |
a3110b5d | 820 | (concat (car (last children)) (substring string point))) |
6d12a4df MH |
821 | ((null children) |
822 | string) | |
823 | (t | |
a3110b5d MH |
824 | (concat (mapconcat 'identity |
825 | (nreverse children) | |
826 | "") | |
827 | (substring string point)))))) | |
828 | ||
47db06aa GM |
829 | ;;******************************************************************* |
830 | ;;** | |
831 | ;;** Printing a tree. | |
832 | ;;** This function is intended mainly for debugging purposes. | |
833 | ;;** | |
834 | ;;******************************************************************* | |
835 | ||
27240aa4 AS |
836 | (defun xml-debug-print (xml &optional indent-string) |
837 | "Outputs the XML in the current buffer. | |
838 | XML can be a tree or a list of nodes. | |
839 | The first line is indented with the optional INDENT-STRING." | |
840 | (setq indent-string (or indent-string "")) | |
971489ea | 841 | (dolist (node xml) |
27240aa4 AS |
842 | (xml-debug-print-internal node indent-string))) |
843 | ||
844 | (defalias 'xml-print 'xml-debug-print) | |
47db06aa | 845 | |
971489ea | 846 | (defun xml-debug-print-internal (xml indent-string) |
47db06aa | 847 | "Outputs the XML tree in the current buffer. |
a98e819b | 848 | The first line is indented with INDENT-STRING." |
47db06aa GM |
849 | (let ((tree xml) |
850 | attlist) | |
a98e819b | 851 | (insert indent-string ?< (symbol-name (xml-node-name tree))) |
524425ae | 852 | |
47db06aa | 853 | ;; output the attribute list |
971489ea | 854 | (setq attlist (xml-node-attributes tree)) |
47db06aa | 855 | (while attlist |
a98e819b | 856 | (insert ?\ (symbol-name (caar attlist)) "=\"" (cdar attlist) ?\") |
971489ea | 857 | (setq attlist (cdr attlist))) |
524425ae | 858 | |
971489ea | 859 | (setq tree (xml-node-children tree)) |
47db06aa | 860 | |
27240aa4 AS |
861 | (if (null tree) |
862 | (insert ?/ ?>) | |
863 | (insert ?>) | |
864 | ||
865 | ;; output the children | |
866 | (dolist (node tree) | |
867 | (cond | |
868 | ((listp node) | |
869 | (insert ?\n) | |
870 | (xml-debug-print-internal node (concat indent-string " "))) | |
871 | ((stringp node) (insert node)) | |
872 | (t | |
873 | (error "Invalid XML tree")))) | |
874 | ||
875 | (when (not (and (null (cdr tree)) | |
876 | (stringp (car tree)))) | |
877 | (insert ?\n indent-string)) | |
878 | (insert ?< ?/ (symbol-name (xml-node-name xml)) ?>)))) | |
47db06aa GM |
879 | |
880 | (provide 'xml) | |
881 | ||
8a02e193 | 882 | ;; arch-tag: 5864b283-5a68-4b59-a20d-36a72b353b9b |
47db06aa | 883 | ;;; xml.el ends here |