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+;;; url.el --- AUCTeX style for `url.sty' -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2004-2021 Free Software Foundation, Inc.
+
+;; Author: Ralf Angeli <angeli@iwi.uni-sb.de>
+;; Maintainer: auctex-devel@gnu.org
+;; Created: 2004-10-13
+;; Keywords: tex
+
+;; This file is part of AUCTeX.
+
+;; AUCTeX 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, or (at your option)
+;; any later version.
+
+;; AUCTeX 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 AUCTeX; see the file COPYING. If not, write to the Free
+;; Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+;; 02110-1301, USA.
+
+;;; Commentary:
+
+;; This file adds support for `url.sty' v3.4 dated 2013-09-16.
+
+;;; Code:
+
+(require 'tex)
+(require 'latex)
+
+;; Silence the compiler:
+(declare-function font-latex-add-keywords
+ "font-latex"
+ (keywords class))
+
+(declare-function font-latex-set-syntactic-keywords
+ "font-latex")
+
+;; Setup for \DeclareUrlCommand:
+(TeX-auto-add-type "url-DeclareUrlCommand" "LaTeX")
+
+(defvar LaTeX-url-DeclareUrlCommand-regexp
+ `(,(concat
+ "\\\\DeclareUrlCommand"
+ "[ \n\r\t]*"
+ "{?"
+ "\\\\\\([a-zA-Z]+\\)"
+ "}?")
+ 1 LaTeX-auto-url-DeclareUrlCommand)
+ "Matches the argument of `\\DeclareUrlCommand' from `url' package.")
+
+(defun LaTeX-url-DeclareUrlCommand-prepare ()
+ "Process macros parsed from `\\DeclareUrlCommand'."
+ ;; \DeclareUrlCommand\abc{settings}: makes \abc{ } like \url{ } with
+ ;; settings.
+ (when (LaTeX-url-DeclareUrlCommand-list)
+ (dolist (cmd (mapcar #'car (LaTeX-url-DeclareUrlCommand-list)))
+ (TeX-add-symbols `(,cmd TeX-arg-verb-delim-or-brace))
+ (add-to-list 'LaTeX-verbatim-macros-with-delims-local cmd)
+ (add-to-list 'LaTeX-verbatim-macros-with-braces-local cmd))
+ ;; Fontification
+ (when (and (fboundp 'font-latex-add-keywords)
+ (fboundp 'font-latex-set-syntactic-keywords)
+ (eq TeX-install-font-lock 'font-latex-setup))
+ (font-latex-add-keywords
+ (mapcar (lambda (cmd)
+ (list cmd ""))
+ (mapcar #'car (LaTeX-url-DeclareUrlCommand-list)))
+ 'reference)
+ ;; Tell font-lock about the update.
+ (font-latex-set-syntactic-keywords))))
+
+;; Setup for \urldef:
+(TeX-auto-add-type "url-urldef" "LaTeX")
+
+(defvar LaTeX-url-urldef-regexp
+ `(,(concat
+ "\\\\urldef"
+ "[ \n\r\t]*"
+ "{?"
+ "\\\\\\([a-zA-Z]+\\)"
+ "}?")
+ 1 LaTeX-auto-url-urldef)
+ "Matches the argument of `\\urldef' from `url' package.")
+
+(defun LaTeX-url-urldef-prepare ()
+ "Process macros parsed from `\\urldef'."
+ (when (LaTeX-url-urldef-list)
+ (mapc #'TeX-add-symbols (mapcar #'car (LaTeX-url-urldef-list)))
+ ;; Fontification
+ (when (and (fboundp 'font-latex-add-keywords)
+ (eq TeX-install-font-lock 'font-latex-setup))
+ (font-latex-add-keywords
+ (mapcar (lambda (cmd)
+ (list cmd ""))
+ (mapcar #'car (LaTeX-url-urldef-list)))
+ 'reference))))
+
+(defun LaTeX-url-auto-prepare ()
+ "Clear `LaTeX-auto-url-*' before parsing."
+ (setq LaTeX-auto-url-DeclareUrlCommand nil
+ LaTeX-auto-url-urldef nil))
+
+(defun LaTeX-url-auto-cleanup ()
+ "Process parsed elements from url.sty."
+ (LaTeX-url-DeclareUrlCommand-prepare)
+ (LaTeX-url-urldef-prepare))
+
+(add-hook 'TeX-auto-prepare-hook #'LaTeX-url-auto-prepare t)
+(add-hook 'TeX-auto-cleanup-hook #'LaTeX-url-auto-cleanup t)
+(add-hook 'TeX-update-style-hook #'TeX-auto-parse t)
+
+(defun TeX-arg-url-urlstyle (optional &optional prompt)
+ "Prompt for style used in \\urlstyle with completion.
+If OPTIONAL is non-nil, indicate it in the minibuffer during the
+query and insert the result in brackets. PROMPT replaces the
+standard one."
+ (TeX-argument-insert
+ (completing-read (TeX-argument-prompt optional prompt "Style")
+ '("rm" "same" "sf" "tt"))
+ optional))
+
+(defun TeX-arg-url-DeclareUrlCommand (optional &optional prompt)
+ "Prompt for arguments of \\DeclareUrlCommand with completion.
+If OPTIONAL is non-nil, indicate it in the minibuffer during the
+query and insert the result in brackets. PROMPT replaces the
+standard one."
+ (let ((cmd (TeX-read-string
+ (TeX-argument-prompt optional prompt "Command: \\" t)))
+ (style (completing-read
+ (TeX-argument-prompt optional prompt "Style")
+ '("rm" "same" "sf" "tt"))))
+ (insert TeX-esc cmd TeX-grop)
+ (when (and style (not (string= style "")))
+ (insert TeX-esc "urlstyle" TeX-grop style TeX-grcl))
+ (insert TeX-grcl)
+ (LaTeX-add-url-DeclareUrlCommands cmd)
+ (LaTeX-url-DeclareUrlCommand-prepare)))
+
+(defun TeX-arg-url-urldef (optional &optional prompt)
+ "Prompt for arguments of \\urldef with completion."
+ (let ((cmd (TeX-read-string
+ (TeX-argument-prompt optional prompt "Command: \\" t))))
+ (TeX-argument-insert cmd optional TeX-esc)
+ (LaTeX-add-url-urldefs cmd)
+ (LaTeX-url-urldef-prepare))
+ (TeX-insert-macro
+ (completing-read
+ (TeX-argument-prompt optional prompt "Macro: \\" t)
+ (append (mapcar #'car (LaTeX-url-DeclareUrlCommand-list))
+ '("url")))))
+
+(TeX-add-style-hook
+ "url"
+ (lambda ()
+
+ ;; Add url to the parser
+ (TeX-auto-add-regexp LaTeX-url-DeclareUrlCommand-regexp)
+ (TeX-auto-add-regexp LaTeX-url-urldef-regexp)
+
+ ;; New symbols
+ (TeX-add-symbols
+ ;; Macros for defining new styles, changing font, linebreaks etc.
+ "Url"
+ "UrlBigBreakPenalty"
+ "UrlBigBreaks"
+ "UrlBreakPenalty"
+ "UrlBreaks"
+ "UrlFont"
+ "UrlLeft"
+ "UrlNoBreaks"
+ "UrlOrds"
+ "UrlRight"
+ "UrlSpecials"
+
+ ;; "hyperref" redefines \url so that the argument is only in
+ ;; braces. We check here if hyperref is loaded:
+ '("url" (TeX-arg-conditional (member "hyperref" (TeX-style-list))
+ ("Url")
+ ((TeX-arg-verb-delim-or-brace "Url"))))
+
+ '("urldef" TeX-arg-url-urldef)
+
+ '("urlstyle" TeX-arg-url-urlstyle))
+
+ ;; For '\path', use the facilities provided by this style. Also
+ ;; don't add "path" for fontification below since
+ ;; `LaTeX-url-DeclareUrlCommand-prepare' takes care of it.
+ (LaTeX-add-url-DeclareUrlCommands "path")
+ (LaTeX-url-DeclareUrlCommand-prepare)
+
+ ;; Don't do the same for '\url' because hyperref.el has some code
+ ;; to remove "url" from `LaTeX-verbatim-macros-with-delims-local',
+ ;; but we check here as well if "hyperref" is already loaded:
+ (unless (member "hyperref" (TeX-style-list))
+ (add-to-list 'LaTeX-verbatim-macros-with-delims-local "url"))
+ (add-to-list 'LaTeX-verbatim-macros-with-braces-local "url")
+
+ ;; Fontification
+ (when (and (fboundp 'font-latex-add-keywords)
+ (eq TeX-install-font-lock 'font-latex-setup))
+ (font-latex-add-keywords '(("url" ""))
+ 'reference)
+ ;; Don't fontify the second argument of 'DeclareUrlCommand' since
+ ;; it gets the `font-latex-verbatim-face' from the first
+ ;; argument. Same applies also to '\urldef' where we don't
+ ;; fontify any arguments:
+ (font-latex-add-keywords '(("DeclareUrlCommand" "\\")
+ ("urldef" "")
+ ("urlstyle" "{"))
+ 'function)
+ ;; Tell font-lock about the update.
+ (font-latex-set-syntactic-keywords)))
+ TeX-dialect)
+
+(defvar LaTeX-url-package-options '("hyphens" "obeyspaces" "spaces"
+ "allowmove" "lowtilde")
+ "Package options for the url package.")
+
+;;; url.el ends here