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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.
94 lines
3.1 KiB
EmacsLisp
94 lines
3.1 KiB
EmacsLisp
;;; nxml-util.el --- utility functions for nxml-*.el -*- lexical-binding:t -*-
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;; Copyright (C) 2003, 2007-2017 Free Software Foundation, Inc.
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;; Author: James Clark
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;; Keywords: wp, hypermedia, languages, XML
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; Code:
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(defconst nxml-debug nil
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"Enable nxml debugging. Effective only at compile time.")
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(defsubst nxml-debug (format &rest args)
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(when nxml-debug
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(apply #'message format args)))
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(defmacro nxml-debug-change (name start end)
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(when nxml-debug
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`(nxml-debug "%s: %S" ,name
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(buffer-substring-no-properties ,start ,end))))
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(defun nxml-make-namespace (str)
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"Return a symbol for the namespace URI STR.
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STR must be a string. If STR is the empty string, return nil.
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Otherwise, return the symbol whose name is STR prefixed with a colon."
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(if (string-equal str "")
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nil
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(intern (concat ":" str))))
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(defun nxml-namespace-name (ns)
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"Return the namespace URI corresponding to the symbol NS.
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This is the inverse of `nxml-make-namespace'."
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(and ns (substring (symbol-name ns) 1)))
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(defconst nxml-xml-namespace-uri
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(nxml-make-namespace "http://www.w3.org/XML/1998/namespace"))
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(defconst nxml-xmlns-namespace-uri
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(nxml-make-namespace "http://www.w3.org/2000/xmlns/"))
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(defmacro nxml-with-degradation-on-error (context &rest body)
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(declare (indent 1) (debug t))
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(if (not nxml-debug)
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(let ((error-symbol (make-symbol "err")))
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`(condition-case ,error-symbol
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(progn ,@body)
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(error
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(nxml-degrade ,context ,error-symbol))))
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`(progn ,@body)))
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(defmacro nxml-with-invisible-motion (&rest body)
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"Evaluate body without calling any point motion hooks."
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(declare (indent 0) (debug t))
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`(let ((inhibit-point-motion-hooks t))
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,@body))
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(defun nxml-display-file-parse-error (err)
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(let* ((filename (nth 1 err))
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(buffer (find-file-noselect filename))
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(pos (nth 2 err))
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(message (nth 3 err)))
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(pop-to-buffer buffer)
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;; What's the right thing to do if the buffer's modified?
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;; The position in the saved file could be completely different.
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(goto-char (if (buffer-modified-p) 1 pos))
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(error "%s" message)))
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(defun nxml-signal-file-parse-error (file pos message &optional error-symbol)
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(signal (or error-symbol 'nxml-file-parse-error)
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(list file pos message)))
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(define-error 'nxml-error nil)
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(define-error 'nxml-file-parse-error "Error parsing file" 'nxml-error)
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(provide 'nxml-util)
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;;; nxml-util.el ends here
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