mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-22 10:26:20 +00:00
bc511a64f6
Most of this change is to boilerplate commentary such as license URLs. This change was prompted by ftp://ftp.gnu.org's going-away party, planned for November. Change these FTP URLs to https://ftp.gnu.org instead. Make similar changes for URLs to other organizations moving away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and fsf.org when this works, as this will further help defend against man-in-the-middle attacks (for this part I omitted the MS-DOS and MS-Windows sources and the test tarballs to keep the workload down). HTTPS is not fully working to lists.gnu.org so I left those URLs alone for now.
565 lines
19 KiB
EmacsLisp
565 lines
19 KiB
EmacsLisp
;;; rng-nxml.el --- make nxml-mode take advantage of rng-validate-mode -*- lexical-binding:t -*-
|
|
|
|
;; Copyright (C) 2003, 2007-2017 Free Software Foundation, Inc.
|
|
|
|
;; Author: James Clark
|
|
;; Keywords: wp, hypermedia, languages, XML, RelaxNG
|
|
|
|
;; This file is part of GNU Emacs.
|
|
|
|
;; GNU Emacs is free software: you can redistribute it and/or modify
|
|
;; it under the terms of the GNU General Public License as published by
|
|
;; the Free Software Foundation, either version 3 of the License, or
|
|
;; (at your option) any later version.
|
|
|
|
;; GNU Emacs is distributed in the hope that it will be useful,
|
|
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
;; GNU General Public License for more details.
|
|
|
|
;; You should have received a copy of the GNU General Public License
|
|
;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
;;; Commentary:
|
|
|
|
;;; Code:
|
|
|
|
(require 'easymenu)
|
|
(require 'xmltok)
|
|
(require 'nxml-util)
|
|
(require 'nxml-ns)
|
|
(require 'rng-match)
|
|
(require 'rng-util)
|
|
(require 'rng-valid)
|
|
(require 'nxml-mode)
|
|
(require 'rng-loc)
|
|
(require 'sgml-mode)
|
|
|
|
(defcustom rng-nxml-auto-validate-flag t
|
|
"Non-nil means automatically turn on validation with nxml-mode."
|
|
:type 'boolean
|
|
:group 'relax-ng)
|
|
|
|
(defcustom rng-preferred-prefix-alist
|
|
'(("http://www.w3.org/1999/XSL/Transform" . "xsl")
|
|
("http://www.w3.org/1999/02/22-rdf-syntax-ns#" . "rdf")
|
|
("http://www.w3.org/1999/xlink" . "xlink")
|
|
("http://www.w3.org/2001/XmlSchema" . "xsd")
|
|
("http://www.w3.org/2001/XMLSchema-instance" . "xsi")
|
|
("http://purl.org/dc/elements/1.1/" . "dc")
|
|
("http://purl.org/dc/terms/" . "dcterms"))
|
|
"Alist of namespaces vs preferred prefixes."
|
|
:type '(repeat (cons :tag "With"
|
|
(string :tag "this namespace URI")
|
|
(string :tag "use this prefix")))
|
|
:group 'relax-ng)
|
|
|
|
(defvar rng-complete-end-tags-after-< t
|
|
"Non-nil means immediately after < complete on end-tag names.
|
|
Complete on start-tag names regardless.")
|
|
|
|
(defvar rng-nxml-easy-menu
|
|
'("XML"
|
|
["Show Outline Only" nxml-hide-all-text-content]
|
|
["Show Everything" nxml-show-all]
|
|
"---"
|
|
["Validation" rng-validate-mode
|
|
:style toggle
|
|
:selected rng-validate-mode]
|
|
["Electric Pairs" sgml-electric-tag-pair-mode
|
|
:style toggle
|
|
:selected sgml-electric-tag-pair-mode]
|
|
"---"
|
|
("Set Schema"
|
|
["Automatically" rng-auto-set-schema]
|
|
("For Document Type"
|
|
:filter (lambda (menu)
|
|
(mapcar (lambda (type-id)
|
|
(vector type-id
|
|
(list 'rng-set-document-type
|
|
type-id)))
|
|
(rng-possible-type-ids))))
|
|
["Any Well-Formed XML" rng-set-vacuous-schema]
|
|
["File..." rng-set-schema-file])
|
|
["Show Schema Location" rng-what-schema]
|
|
["Save Schema Location" rng-save-schema-location :help
|
|
"Save the location of the schema currently being used for this buffer"]
|
|
"---"
|
|
["First Error" rng-first-error :active rng-validate-mode]
|
|
["Next Error" rng-next-error :active rng-validate-mode]
|
|
"---"
|
|
["Customize nXML" (customize-group 'nxml)]))
|
|
|
|
;;;###autoload
|
|
(defun rng-nxml-mode-init ()
|
|
"Initialize `nxml-mode' to take advantage of `rng-validate-mode'.
|
|
This is typically called from `nxml-mode-hook'.
|
|
Validation will be enabled if `rng-nxml-auto-validate-flag' is non-nil."
|
|
(interactive)
|
|
(define-key nxml-mode-map "\C-c\C-v" 'rng-validate-mode)
|
|
(define-key nxml-mode-map "\C-c\C-s\C-w" 'rng-what-schema)
|
|
(define-key nxml-mode-map "\C-c\C-s\C-a" 'rng-auto-set-schema-and-validate)
|
|
(define-key nxml-mode-map "\C-c\C-s\C-f" 'rng-set-schema-file-and-validate)
|
|
(define-key nxml-mode-map "\C-c\C-s\C-l" 'rng-save-schema-location)
|
|
(define-key nxml-mode-map "\C-c\C-s\C-t" 'rng-set-document-type-and-validate)
|
|
(define-key nxml-mode-map "\C-c\C-n" 'rng-next-error)
|
|
(easy-menu-define rng-nxml-menu nxml-mode-map
|
|
"Menu for nxml-mode used with rng-validate-mode."
|
|
rng-nxml-easy-menu)
|
|
(add-to-list 'mode-line-process
|
|
'(rng-validate-mode (:eval (rng-compute-mode-line-string)))
|
|
'append)
|
|
(cond (rng-nxml-auto-validate-flag
|
|
(rng-validate-mode 1)
|
|
(add-hook 'completion-at-point-functions #'rng-completion-at-point nil t)
|
|
(add-hook 'nxml-in-mixed-content-hook #'rng-in-mixed-content-p nil t))
|
|
(t
|
|
(rng-validate-mode 0)
|
|
(remove-hook 'completion-at-point-functions #'rng-completion-at-point t)
|
|
(remove-hook 'nxml-in-mixed-content-hook #'rng-in-mixed-content-p t))))
|
|
|
|
(defun rng-completion-at-point ()
|
|
"Return completion data for the string before point using the current schema."
|
|
(and rng-validate-mode
|
|
(let ((lt-pos (save-excursion (search-backward "<" nil t)))
|
|
xmltok-dtd)
|
|
(and lt-pos
|
|
(= (rng-set-state-after lt-pos) lt-pos)
|
|
(or (rng-complete-tag lt-pos)
|
|
(rng-complete-end-tag lt-pos)
|
|
(rng-complete-attribute-name lt-pos)
|
|
(rng-complete-attribute-value lt-pos))))))
|
|
|
|
(defconst rng-in-start-tag-name-regex
|
|
(replace-regexp-in-string
|
|
"w"
|
|
xmltok-ncname-regexp
|
|
"<\\(?:w\\(?::w?\\)?\\)?\\="
|
|
t
|
|
t))
|
|
|
|
(defun rng-complete-tag (lt-pos)
|
|
(let ((extra-strings
|
|
(when (and (= lt-pos (1- (point)))
|
|
rng-complete-end-tags-after-<
|
|
rng-open-elements
|
|
(not (eq (car rng-open-elements) t))
|
|
(or rng-collecting-text
|
|
(rng-match-save
|
|
(rng-match-end-tag))))
|
|
(list (concat "/"
|
|
(if (caar rng-open-elements)
|
|
(concat (caar rng-open-elements)
|
|
":"
|
|
(cdar rng-open-elements))
|
|
(cdar rng-open-elements)))))))
|
|
(when (save-excursion
|
|
(re-search-backward rng-in-start-tag-name-regex
|
|
lt-pos
|
|
t))
|
|
(and rng-collecting-text (rng-flush-text))
|
|
(let ((target-names (rng-match-possible-start-tag-names)))
|
|
`(,(1+ lt-pos)
|
|
,(save-excursion (skip-chars-forward "[[:alnum:]_.-:]") (point))
|
|
,(apply-partially #'rng-complete-qname-function
|
|
target-names nil extra-strings)
|
|
:exit-function
|
|
,(lambda (completion status)
|
|
(cond
|
|
((not (eq status 'finished)) nil)
|
|
((rng-qname-p completion)
|
|
(let ((name (rng-expand-qname completion
|
|
t
|
|
#'rng-start-tag-expand-recover)))
|
|
(when (and name
|
|
(rng-match-start-tag-open name)
|
|
(or (not (rng-match-start-tag-close))
|
|
;; need a namespace decl on the root element
|
|
(and (car name)
|
|
(not rng-open-elements))))
|
|
;; attributes are required
|
|
(insert " "))))
|
|
((member completion extra-strings)
|
|
(insert ">")))))))))
|
|
|
|
(defconst rng-in-end-tag-name-regex
|
|
(replace-regexp-in-string
|
|
"w"
|
|
xmltok-ncname-regexp
|
|
"</\\(?:w\\(?::w?\\)?\\)?\\="
|
|
t
|
|
t))
|
|
|
|
(defun rng-complete-end-tag (lt-pos)
|
|
(when (save-excursion
|
|
(re-search-backward rng-in-end-tag-name-regex
|
|
lt-pos
|
|
t))
|
|
(cond ((or (not rng-open-elements)
|
|
(eq (car rng-open-elements) t))
|
|
(message "No matching start-tag")
|
|
(ding))
|
|
(t
|
|
(let ((start-tag-name
|
|
(if (caar rng-open-elements)
|
|
(concat (caar rng-open-elements)
|
|
":"
|
|
(cdar rng-open-elements))
|
|
(cdar rng-open-elements))))
|
|
`(,(+ (match-beginning 0) 2)
|
|
,(save-excursion (skip-chars-forward "[[:alnum:]_.-:]") (point))
|
|
,(list start-tag-name) ;Sole completion candidate.
|
|
:exit-function
|
|
,(lambda (_completion status)
|
|
(when (eq status 'finished)
|
|
(unless (eq (char-after) ?>) (insert ">"))
|
|
(when (not (or rng-collecting-text
|
|
(rng-match-end-tag)))
|
|
(message "Element \"%s\" is incomplete"
|
|
start-tag-name))))))))))
|
|
|
|
(defconst rng-in-attribute-regex
|
|
(replace-regexp-in-string
|
|
"w"
|
|
xmltok-ncname-regexp
|
|
"<w\\(?::w\\)?\
|
|
\\(?:[ \t\r\n]+w\\(?::w\\)?[ \t\r\n]*=\
|
|
[ \t\r\n]*\\(?:\"[^\"]*\"\\|'[^']*'\\)\\)*\
|
|
[ \t\r\n]+\\(\\(?:w\\(?::w?\\)?\\)?\\)\\="
|
|
t
|
|
t))
|
|
|
|
(defvar rng-undeclared-prefixes nil)
|
|
|
|
(defun rng-complete-attribute-name (lt-pos)
|
|
(when (save-excursion
|
|
(re-search-backward rng-in-attribute-regex lt-pos t))
|
|
(let ((attribute-start (match-beginning 1))
|
|
rng-undeclared-prefixes)
|
|
(and (rng-adjust-state-for-attribute lt-pos
|
|
attribute-start)
|
|
(let ((target-names
|
|
(rng-match-possible-attribute-names))
|
|
(extra-strings
|
|
(mapcar (lambda (prefix)
|
|
(if prefix
|
|
(concat "xmlns:" prefix)
|
|
"xmlns"))
|
|
rng-undeclared-prefixes)))
|
|
`(,attribute-start
|
|
,(save-excursion (skip-chars-forward "[[:alnum:]_.-:]") (point))
|
|
,(apply-partially #'rng-complete-qname-function
|
|
target-names t extra-strings)
|
|
:exit-function
|
|
,(lambda (_completion status)
|
|
(when (and (eq status 'finished)
|
|
(not (looking-at "=")))
|
|
(insert "=\"\"")
|
|
(forward-char -1)))))))))
|
|
|
|
(defconst rng-in-attribute-value-regex
|
|
(replace-regexp-in-string
|
|
"w"
|
|
xmltok-ncname-regexp
|
|
"<w\\(?::w\\)?\
|
|
\\(?:[ \t\r\n]+w\\(?::w\\)?[ \t\r\n]*=\
|
|
[ \t\r\n]*\\(?:\"[^\"]*\"\\|'[^']*'\\)\\)*\
|
|
[ \t\r\n]+\\(w\\(:w\\)?\\)[ \t\r\n]*=[ \t\r\n]*\
|
|
\\(\"[^\"]*\\|'[^']*\\)\\="
|
|
t
|
|
t))
|
|
|
|
(defun rng-complete-attribute-value (lt-pos)
|
|
(when (save-excursion
|
|
(re-search-backward rng-in-attribute-value-regex lt-pos t))
|
|
(let* ((name-start (match-beginning 1))
|
|
(name-end (match-end 1))
|
|
(colon (match-beginning 2))
|
|
(value-start (1+ (match-beginning 3)))
|
|
(exit-function
|
|
(lambda (_completion status)
|
|
(when (eq status 'finished)
|
|
(let ((delim (char-before value-start)))
|
|
(unless (eq (char-after) delim) (insert delim)))))))
|
|
(and (rng-adjust-state-for-attribute lt-pos
|
|
name-start)
|
|
(if (string= (buffer-substring-no-properties name-start
|
|
(or colon name-end))
|
|
"xmlns")
|
|
`(,value-start ,(point)
|
|
,(rng-strings-to-completion-table
|
|
(rng-possible-namespace-uris
|
|
(and colon
|
|
(buffer-substring-no-properties (1+ colon) name-end))))
|
|
:exit-function ,exit-function)
|
|
(rng-adjust-state-for-attribute-value name-start
|
|
colon
|
|
name-end)
|
|
`(,value-start ,(point)
|
|
,(rng-strings-to-completion-table
|
|
(rng-match-possible-value-strings))
|
|
:exit-function ,exit-function))))))
|
|
|
|
(defun rng-possible-namespace-uris (prefix)
|
|
(let ((ns (if prefix (nxml-ns-get-prefix prefix)
|
|
(nxml-ns-get-default))))
|
|
(if (and ns (memq prefix (nxml-ns-changed-prefixes)))
|
|
(list (nxml-namespace-name ns))
|
|
(mapcar #'nxml-namespace-name
|
|
(delq nxml-xml-namespace-uri
|
|
(rng-match-possible-namespace-uris))))))
|
|
|
|
(defconst rng-qname-regexp
|
|
(concat "\\`"
|
|
xmltok-ncname-regexp
|
|
"\\(?:" ":" xmltok-ncname-regexp "\\)" "?" "\\'"))
|
|
|
|
(defun rng-qname-p (string)
|
|
(and (string-match rng-qname-regexp string) t))
|
|
|
|
(defun rng-expand-qname (qname &optional defaultp recover-fun)
|
|
(setq qname (rng-split-qname qname))
|
|
(let ((prefix (car qname)))
|
|
(if prefix
|
|
(let ((ns (nxml-ns-get-prefix qname)))
|
|
(cond (ns (cons ns (cdr qname)))
|
|
(recover-fun (funcall recover-fun prefix (cdr qname)))))
|
|
(cons (and defaultp (nxml-ns-get-default)) (cdr qname)))))
|
|
|
|
(defun rng-start-tag-expand-recover (_prefix local-name)
|
|
(let ((ns (rng-match-infer-start-tag-namespace local-name)))
|
|
(and ns
|
|
(cons ns local-name))))
|
|
|
|
(defun rng-split-qname (qname)
|
|
(if (string-match ":" qname)
|
|
(cons (substring qname 0 (match-beginning 0))
|
|
(substring qname (match-end 0)))
|
|
(cons nil qname)))
|
|
|
|
(defun rng-in-mixed-content-p ()
|
|
"Return non-nil if point is in mixed content.
|
|
Return nil only if point is definitely not in mixed content.
|
|
If unsure, return non-nil."
|
|
(if (eq rng-current-schema rng-any-element)
|
|
t
|
|
(rng-set-state-after)
|
|
(rng-match-mixed-text)))
|
|
|
|
(defun rng-set-state-after (&optional pos)
|
|
"Set the state for after parsing the first token with endpoint >= POS.
|
|
This does not change the xmltok state or point. However, it does
|
|
set `xmltok-dtd'. Returns the position of the end of the token."
|
|
(unless pos (setq pos (point)))
|
|
(when (< rng-validate-up-to-date-end pos)
|
|
(message "Parsing...")
|
|
(while (and (rng-do-some-validation)
|
|
(< rng-validate-up-to-date-end pos))
|
|
;; Display percentage validated.
|
|
(force-mode-line-update)
|
|
(sit-for 0))
|
|
(message "Parsing...done"))
|
|
(save-excursion
|
|
(save-restriction
|
|
(widen)
|
|
(nxml-with-invisible-motion
|
|
(if (= pos (point-min))
|
|
(rng-set-initial-state)
|
|
(let ((state (get-text-property (1- pos) 'rng-state)))
|
|
(cond (state
|
|
(rng-restore-state state)
|
|
(goto-char pos))
|
|
(t
|
|
(let ((start (previous-single-property-change pos
|
|
'rng-state)))
|
|
(cond (start
|
|
(rng-restore-state (get-text-property (1- start)
|
|
'rng-state))
|
|
(goto-char start))
|
|
(t (rng-set-initial-state))))))))
|
|
(xmltok-save
|
|
(if (= (point) 1)
|
|
(xmltok-forward-prolog)
|
|
(setq xmltok-dtd rng-dtd))
|
|
(cond ((and (< pos (point))
|
|
;; This handles the case where the prolog ends
|
|
;; with a < without any following name-start
|
|
;; character. This will be treated by the parser
|
|
;; as part of the prolog, but we want to treat
|
|
;; it as the start of the instance.
|
|
(eq (char-after pos) ?<)
|
|
(<= (point)
|
|
(save-excursion
|
|
(goto-char (1+ pos))
|
|
(skip-chars-forward " \t\r\n")
|
|
(point))))
|
|
pos)
|
|
((< (point) pos)
|
|
(let ((rng-dt-namespace-context-getter
|
|
'(nxml-ns-get-context))
|
|
(rng-parsing-for-state t))
|
|
(rng-forward pos))
|
|
(point))
|
|
(t pos)))))))
|
|
|
|
(defun rng-adjust-state-for-attribute (lt-pos start)
|
|
(xmltok-save
|
|
(save-excursion
|
|
(goto-char lt-pos)
|
|
(when (memq (xmltok-forward)
|
|
'(start-tag
|
|
partial-start-tag
|
|
empty-element
|
|
partial-empty-element))
|
|
(when (< start (point))
|
|
(setq xmltok-namespace-attributes
|
|
(rng-prune-attribute-at start
|
|
xmltok-namespace-attributes))
|
|
(setq xmltok-attributes
|
|
(rng-prune-attribute-at start
|
|
xmltok-attributes)))
|
|
(let ((rng-parsing-for-state t)
|
|
(rng-dt-namespace-context-getter '(nxml-ns-get-context)))
|
|
(rng-process-start-tag 'stop)
|
|
(rng-find-undeclared-prefixes)
|
|
t)))))
|
|
|
|
(defun rng-find-undeclared-prefixes ()
|
|
;; Start with the newly effective namespace declarations.
|
|
;; (Includes declarations added during recovery.)
|
|
(setq rng-undeclared-prefixes (nxml-ns-changed-prefixes))
|
|
(let ((iter xmltok-attributes)
|
|
(ns-state (nxml-ns-state))
|
|
att)
|
|
;; Add namespace prefixes used in this tag,
|
|
;; but not declared in the parent.
|
|
(nxml-ns-pop-state)
|
|
(while iter
|
|
(setq att (car iter))
|
|
(let ((prefix (xmltok-attribute-prefix att)))
|
|
(when (and prefix
|
|
(not (member prefix rng-undeclared-prefixes))
|
|
(not (nxml-ns-get-prefix prefix)))
|
|
(setq rng-undeclared-prefixes
|
|
(cons prefix rng-undeclared-prefixes))))
|
|
(setq iter (cdr iter)))
|
|
(nxml-ns-set-state ns-state)
|
|
;; Remove namespace prefixes explicitly declared.
|
|
(setq iter xmltok-namespace-attributes)
|
|
(while iter
|
|
(setq att (car iter))
|
|
(setq rng-undeclared-prefixes
|
|
(delete (and (xmltok-attribute-prefix att)
|
|
(xmltok-attribute-local-name att))
|
|
rng-undeclared-prefixes))
|
|
(setq iter (cdr iter)))))
|
|
|
|
(defun rng-prune-attribute-at (start atts)
|
|
(when atts
|
|
(let ((cur atts))
|
|
(while (if (eq (xmltok-attribute-name-start (car cur)) start)
|
|
(progn
|
|
(setq atts (delq (car cur) atts))
|
|
nil)
|
|
(setq cur (cdr cur)))))
|
|
atts))
|
|
|
|
(defun rng-adjust-state-for-attribute-value (name-start
|
|
colon
|
|
name-end)
|
|
(let* ((prefix (if colon
|
|
(buffer-substring-no-properties name-start colon)
|
|
nil))
|
|
(local-name (buffer-substring-no-properties (if colon
|
|
(1+ colon)
|
|
name-start)
|
|
name-end))
|
|
(ns (and prefix (nxml-ns-get-prefix prefix))))
|
|
(and (or (not prefix) ns)
|
|
(rng-match-attribute-name (cons ns local-name)))))
|
|
|
|
(defun rng-complete-qname-function (candidates attributes-flag extra-strings
|
|
string predicate flag)
|
|
(complete-with-action flag
|
|
(rng-generate-qname-list
|
|
string candidates attributes-flag extra-strings)
|
|
string predicate))
|
|
|
|
(defun rng-generate-qname-list (&optional string candidates attribute-flag extra-strings)
|
|
(let ((forced-prefix (and string
|
|
(string-match ":" string)
|
|
(> (match-beginning 0) 0)
|
|
(substring string
|
|
0
|
|
(match-beginning 0))))
|
|
(namespaces (mapcar #'car candidates))
|
|
ns-prefixes-alist ns-prefixes iter ns prefer)
|
|
(while namespaces
|
|
(setq ns (car namespaces))
|
|
(when ns
|
|
(setq ns-prefixes-alist
|
|
(cons (cons ns (nxml-ns-prefixes-for
|
|
ns
|
|
attribute-flag))
|
|
ns-prefixes-alist)))
|
|
(setq namespaces (delq ns (cdr namespaces))))
|
|
(setq iter ns-prefixes-alist)
|
|
(while iter
|
|
(setq ns-prefixes (car iter))
|
|
(setq ns (car ns-prefixes))
|
|
(when (null (cdr ns-prefixes))
|
|
;; No declared prefix for the namespace
|
|
(if forced-prefix
|
|
;; If namespace non-nil and prefix undeclared,
|
|
;; use forced prefix.
|
|
(when (and ns
|
|
(not (nxml-ns-get-prefix forced-prefix)))
|
|
(setcdr ns-prefixes (list forced-prefix)))
|
|
(setq prefer (rng-get-preferred-unused-prefix ns))
|
|
(when prefer
|
|
(setcdr ns-prefixes (list prefer)))
|
|
;; Unless it's an attribute with a non-nil namespace,
|
|
;; allow no prefix for this namespace.
|
|
(unless attribute-flag
|
|
(setcdr ns-prefixes (cons nil (cdr ns-prefixes))))))
|
|
(setq iter (cdr iter)))
|
|
(rng-uniquify-equal
|
|
(sort (apply #'append
|
|
(cons extra-strings
|
|
(mapcar (lambda (name)
|
|
(if (car name)
|
|
(mapcar (lambda (prefix)
|
|
(if prefix
|
|
(concat prefix
|
|
":"
|
|
(cdr name))
|
|
(cdr name)))
|
|
(cdr (assoc (car name)
|
|
ns-prefixes-alist)))
|
|
(list (cdr name))))
|
|
candidates)))
|
|
'string<))))
|
|
|
|
(defun rng-get-preferred-unused-prefix (ns)
|
|
(let ((ns-prefix (assoc (symbol-name ns) rng-preferred-prefix-alist))
|
|
iter prefix)
|
|
(when ns-prefix
|
|
(setq prefix (cdr ns-prefix))
|
|
(when (nxml-ns-get-prefix prefix)
|
|
;; try to find an unused prefix
|
|
(setq iter (memq ns-prefix rng-preferred-prefix-alist))
|
|
(while (and iter
|
|
(setq ns-prefix (assoc ns iter)))
|
|
(if (nxml-ns-get-prefix (cdr ns-prefix))
|
|
(setq iter (memq ns-prefix iter))
|
|
(setq prefix (cdr ns-prefix))
|
|
nil))))
|
|
prefix))
|
|
|
|
(defun rng-strings-to-completion-table (strings)
|
|
(mapcar #'rng-escape-string strings))
|
|
|
|
(provide 'rng-nxml)
|
|
|
|
;;; rng-nxml.el ends here
|