Subject: bug#27272: 25.2; [patch] Fix positional args among keyword args in eldoc.

From: Thierry Volpiatto <[email-masked]>
Date: Thu, 15 Jun 2017 05:26:05 +0200

[email-masked] writes:

> Do you mean you have an updated patch that fixes this as well (which you
> seem to have forgotten to post)?

It is here.

diff --git a/lisp/progmodes/elisp-mode.el b/lisp/progmodes/elisp-mode.el
index b3f452ca5b9..b2b3015581d 100644
--- a/lisp/progmodes/elisp-mode.el
+++ b/lisp/progmodes/elisp-mode.el
@@ -1400,7 +1400,8 @@ In the absence of INDEX, just call `eldoc-docstring-format-sym-doc'."
         (args-lst (mapcar (lambda (x)
                             (replace-regexp-in-string
                              "\\`[(]\\|[)]\\'" "" x))
-                          (split-string args))))
+                          (split-string args)))
+        (start-key-pos (cl-position "&key" args-lst :test 'equal)))
     ;; Find the current argument in the argument string.  We need to
     ;; handle `&rest' and informal `...' properly.
     ;;
@@ -1412,11 +1413,12 @@ In the absence of INDEX, just call `eldoc-docstring-format-sym-doc'."
     ;; When `&key' is used finding position based on `index'
     ;; would be wrong, so find the arg at point and determine
     ;; position in ARGS based on this current arg.
-    (when (string-match "&key" args)
+    (when (and (string-match "&key" args)
+               (> index start-key-pos))
       (let* (case-fold-search
              key-have-value
              (sym-name (symbol-name sym))
-             (cur-w (current-word))
+             (cur-w (current-word t))
              (args-lst-ak (cdr (member "&key" args-lst)))
              (limit (save-excursion
                       (when (re-search-backward sym-name nil t)
@@ -1425,7 +1427,7 @@ In the absence of INDEX, just call `eldoc-docstring-format-sym-doc'."
                         (substring cur-w 1)
                       (save-excursion
                         (let (split)
-                          (when (re-search-backward ":\\([^()\n]*\\)" limit t)
+                          (when (re-search-backward ":\\([^ ()\n]*\\)" limit t)
                             (setq split (split-string (match-string 1) " " t))
                             (prog1 (car split)
                               (when (cdr split)
@@ -1437,7 +1439,7 @@ In the absence of INDEX, just call `eldoc-docstring-format-sym-doc'."
                                  args-lst-ak
                                  (not (member (upcase cur-a) args-lst-ak))
                                  (upcase (car (last args-lst-ak))))))
-        (unless (string= cur-w sym-name)
+        (unless (or (null cur-w) (string= cur-w sym-name))
           ;; The last keyword have already a value
           ;; i.e :foo a b and cursor is at b.
           ;; If signature have also `&rest'

-- 
Thierry
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