diff options
Diffstat (limited to 'lisp/subr.el')
| -rw-r--r-- | lisp/subr.el | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/lisp/subr.el b/lisp/subr.el index 97f73251c03..a74b6828dd5 100644 --- a/lisp/subr.el +++ b/lisp/subr.el @@ -2836,11 +2836,10 @@ Modifies the match data; use `save-match-data' if necessary." list))) (nreverse list))) -;; (string->strings (strings->string X)) == X -(defun strings->string (strings &optional separator) +(defun combine-and-quote-strings (strings &optional separator) "Concatenate the STRINGS, adding the SEPARATOR (default \" \"). This tries to quote the strings to avoid ambiguity such that - (string->strings (strings->string strs)) == strs + (split-string-and-unquote (combine-and-quote-strings strs)) == strs Only some SEPARATORs will work properly." (let ((sep (or separator " "))) (mapconcat @@ -2850,20 +2849,20 @@ Only some SEPARATORs will work properly." str)) strings sep))) -;; (string->strings (strings->string X)) == X -(defun string->strings (string &optional separator) +(defun split-string-and-unquote (string &optional separator) "Split the STRING into a list of strings. -It understands elisp style quoting within STRING such that - (string->strings (strings->string strs)) == strs +It understands Emacs Lisp quoting within STRING, such that + (split-string-and-unquote (combine-and-quote-strings strs)) == strs The SEPARATOR regexp defaults to \"\\s-+\"." (let ((sep (or separator "\\s-+")) (i (string-match "[\"]" string))) - (if (null i) (split-string string sep t) ; no quoting: easy + (if (null i) + (split-string string sep t) ; no quoting: easy (append (unless (eq i 0) (split-string (substring string 0 i) sep t)) (let ((rfs (read-from-string string i))) (cons (car rfs) - (string->strings (substring string (cdr rfs)) - sep))))))) + (split-string-and-unquote (substring string (cdr rfs)) + sep))))))) ;;;; Replacement in strings. |