diff options
Diffstat (limited to 'lisp/shell.el')
| -rw-r--r-- | lisp/shell.el | 69 |
1 files changed, 61 insertions, 8 deletions
diff --git a/lisp/shell.el b/lisp/shell.el index 7c5ce49a967..ca238a443f3 100644 --- a/lisp/shell.el +++ b/lisp/shell.el @@ -372,8 +372,57 @@ Thus, this does not include the shell's current directory.") ;;; Basic Procedures -(defun shell-parse-pcomplete-arguments () +(defun shell--unquote&requote-argument (qstr &optional upos) + (unless upos (setq upos 0)) + (let* ((qpos 0) + (dquotes nil) + (ustrs '()) + (re (concat + "[\"']" + "\\|\\$\\(?:\\([[:alpha:]][[:alnum:]]*\\)" + "\\|{\\(?1:[^{}]+\\)}\\)" + (when (memq system-type '(ms-dos windows-nt)) + "\\|%\\(?1:[^\\\\/]*\\)%") + (when comint-file-name-quote-list + "\\|\\\\\\(.\\)"))) + (qupos nil) + (push (lambda (str end) + (push str ustrs) + (setq upos (- upos (length str))) + (unless (or qupos (> upos 0)) + (setq qupos (if (< end 0) (- end) (+ upos end)))))) + match) + (while (setq match (string-match re qstr qpos)) + (funcall push (substring qstr qpos match) match) + (cond + ((match-beginning 2) (funcall push (match-string 2 qstr) (match-end 0))) + ((match-beginning 1) (funcall push (getenv (match-string 1 qstr)) + (- (match-end 0)))) + ((eq (aref qstr match) ?\") (setq dquotes (not dquotes))) + ((eq (aref qstr match) ?\') + (cond + (dquotes (funcall push "'" (match-end 0))) + ((< match (1+ (length qstr))) + (let ((end (string-match "'" qstr (1+ match)))) + (funcall push (substring qstr (1+ match) end) + (or end (length qstr))))) + (t nil))) + (t (error "Unexpected case in shell--unquote&requote-argument!"))) + (setq qpos (match-end 0))) + (funcall push (substring qstr qpos) (length qstr)) + (list (mapconcat #'identity (nreverse ustrs) "") + qupos #'comint-quote-filename))) + +(defun shell--unquote-argument (str) + (car (shell--unquote&requote-argument str))) +(defun shell--requote-argument (upos qstr) + ;; See `completion-table-with-quoting'. + (let ((res (shell--unquote&requote-argument qstr upos))) + (cons (nth 1 res) (nth 2 res)))) + +(defun shell--parse-pcomplete-arguments () "Parse whitespace separated arguments in the current region." + ;; FIXME: share code with shell--unquote&requote-argument. (let ((begin (save-excursion (shell-backward-command 1) (point))) (end (point)) begins args) @@ -393,12 +442,16 @@ Thus, this does not include the shell's current directory.") (goto-char (match-end 0)) (cond ((match-beginning 3) ;Backslash escape. - (push (if (= (match-beginning 3) (match-end 3)) - "\\" (match-string 3)) + (push (cond + ((null comint-file-name-quote-list) + (goto-char (match-beginning 3)) "\\") + ((= (match-beginning 3) (match-end 3)) "\\") + (t (match-string 3))) arg)) ((match-beginning 2) ;Double quote. - (push (replace-regexp-in-string - "\\\\\\(.\\)" "\\1" (match-string 2)) + (push (if (null comint-file-name-quote-list) (match-string 2) + (replace-regexp-in-string + "\\\\\\(.\\)" "\\1" (match-string 2))) arg)) ((match-beginning 1) ;Single quote. (push (match-string 1) arg)) @@ -426,10 +479,10 @@ Shell buffers. It implements `shell-completion-execonly' for shell-file-name-quote-list) (set (make-local-variable 'comint-dynamic-complete-functions) shell-dynamic-complete-functions) + (setq-local comint-unquote-function #'shell--unquote-argument) + (setq-local comint-requote-function #'shell--requote-argument) (set (make-local-variable 'pcomplete-parse-arguments-function) - #'shell-parse-pcomplete-arguments) - (set (make-local-variable 'pcomplete-arg-quote-list) - (append "\\ \t\n\r\"'`$|&;(){}[]<>#" nil)) + #'shell--parse-pcomplete-arguments) (set (make-local-variable 'pcomplete-termination-string) (cond ((not comint-completion-addsuffix) "") ((stringp comint-completion-addsuffix) |