(Man-default-man-entry): When looking for default man

entry title search text preceding point.  Use when instead of if.

1 files changed, 29 insertions, 16 deletions

diff --git a/lisp/man.el b/lisp/man.el
index c3621be1c97..ebf1ebc69bc 100644
--- a/lisp/man.el
+++ b/lisp/man.el
@@ -647,26 +647,39 @@ a new value."
 (defsubst Man-default-man-entry (&optional pos)
   "Make a guess at a default manual entry based on the text at POS.
 If POS is nil, the current point is used."
-  (let (word)
+  (let (word start original-pos distance)
     (save-excursion
       (if pos (goto-char pos))
       ;; Default man entry title is any word the cursor is on, or if
-      ;; cursor not on a word, then nearest preceding word.
-      (skip-chars-backward "-a-zA-Z0-9._+:")
-      (let ((start (point)))
-        (skip-chars-forward "-a-zA-Z0-9._+:")
-        ;; If there is a continuation at the end of line, check the
-        ;; following line too, eg:
-        ;;     see this-
-        ;;     command-here(1)
-        (setq word (buffer-substring-no-properties start (point)))
-        (if (looking-at "[ \t\r\n]+\\([-a-zA-Z0-9._+:]+\\)([0-9])")
-            (setq word (concat word (match-string 1)))))
-      (if (string-match "[._]+$" word)
-          (setq word (substring word 0 (match-beginning 0))))
+      ;; cursor not on a word, nearest preceding or next word-like
+      ;; object on this line.
+      (if (not (zerop (skip-chars-backward "-a-zA-Z0-9._+:")))
+          (setq start (point))
+        (setq original-pos (point))
+        (setq distance (abs (skip-chars-backward ",; \t")))
+        (if (not (zerop (skip-chars-backward "-a-zA-Z0-9._+:")))
+            (progn
+              (setq start (point))
+              (goto-char original-pos)
+              (if (and (< (skip-chars-forward ",; \t") distance)
+                       (looking-at "[-a-zA-Z0-9._+:]"))
+                  (setq start (point))
+                (goto-char start)))
+          (skip-chars-forward ",; \t")
+          (setq start (point))))
+      (skip-chars-forward "-a-zA-Z0-9._+:")
+      (setq word (buffer-substring-no-properties start (point)))
+      ;; If there is a continuation at the end of line, check the
+      ;; following line too, eg:
+      ;;     see this-
+      ;;     command-here(1)
+      (when (looking-at "[ \t\r\n]+\\([-a-zA-Z0-9._+:]+\\)([0-9])")
+        (setq word (concat word (match-string-no-properties 1))))
+      (when (string-match "[._]+$" word)
+        (setq word (substring word 0 (match-beginning 0))))
       ;; If looking at something like *strcat(... , remove the '*'
-      (if (string-match "^*" word)
-          (setq word (substring word 1)))
+      (when (string-match "^*" word)
+        (setq word (substring word 1)))
       ;; If looking at something like ioctl(2) or brc(1M), include the
       ;; section number in the returned value.  Remove text properties.
       (concat word