(defcustom nsearch-symbol-chars "_-"  "*A string containing legal characters in a symbol.The current syntax table should really be used for this."  :type 'string  :group 'netsearch)

(defcustom nsearch-filename-chars "-.,/A-Za-z0-9_~!@#$%&+=\\"  "*A string containing legal characters in a symbol.The current syntax table should really be used for this."  :type 'string  :group 'nsearch)

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;(defconst nsearch-running-in-xemacs (string-match "XEmacs\|Lucid" emacs-version))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;(defcustom nsearch-no-mouse-prompts nil  "*If non-nil, use the symbol under the cursor instead of prompting.Do not prompt for a value, except for when seaching for a egrep patternor a file."  :type 'boolean  :group 'nsearch)

(defun eskip-chars-backward (symbol)  (if (re-search-backward symbol 20 t)      (eskip-chars-backward symbol)    nil)  )

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;(defun nsearch-extract-symbol-at-cursor (extract-filename)  (let* ( (symbol-chars (if extract-filename       nsearch-filename-chars     nsearch-symbol-chars))   (symbol-char-regexp (concat "[" symbol-chars "]"))   )    (save-excursion      (progn (buffer-substring-no-properties  (progn    (if (not (looking-at symbol-char-regexp))        (re-search-backward "" nil t))    (skip-chars-backward symbol-chars )    (point))  (progn    (skip-chars-forward symbol-chars )    (point)  )) (if (or (not sym)    (string-match " " sym))       (setq sym (current-word))     sym)       ))    ))

(defun nsearch-prompt-for-symbol (prompt extract-filename)  "prompt the user for a cscope symbol."  (let (sym)    (setq sym (nsearch-extract-symbol-at-cursor extract-filename))    (if (or (not sym)     (string= sym "")     (not (and nsearch-running-in-xemacs        nsearch-no-mouse-prompts current-mouse-event        (or (mouse-event-p current-mouse-event)     (misc-user-event-p current-mouse-event))))     ;; Always prompt for symbol in dired mode.     (eq major-mode 'dired-mode)     ) (setq sym (read-from-minibuffer prompt sym))      sym)    ))

(defun nsearch-find (symbol)  "Find a symbol's global definition."  (interactive (list  (nsearch-prompt-for-symbol "Find this: " nil)  ))  (let ((nsearch-symbol symbol))    (setq nsearch-symbol (concat "=" nsearch-symbol))    (message "%s" nsearch-symbol)     (start-process "iexplorer" (get-buffer-create "temp" )      "C:/Program Files/Internet Explorer/iexplore.exe" nsearch-symbol)    ))

(global-set-key (kbd "C-c n") 'nsearch-find)

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