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+/ ========================================================================= /
+/ Copyright (c) 1998-2000, The Santa Cruz Operation /
+/ All rights reserved./
+/ /
+/ Redistribution and use in source and binary forms, with or without/
+/ modification, are permitted provided that the following conditions are met:/
+//
+/ *Redistributions of source code must retain the above copyright notice,/
+/ this list of conditions and the following disclaimer./
+//
+/ *Redistributions in binary form must reproduce the above copyright notice,/
+/ this list of conditions and the following disclaimer in the documentation/
+/ and/or other materials provided with the distribution./
+//
+/ *Neither name of The Santa Cruz Operation nor the names of its contributors/
+/ may be used to endorse or promote products derived from this software/
+/ without specific prior written permission. /
+//
+/ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS/
+/ IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,/
+/ THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR/
+/ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE/
+/ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR/
+/ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF/
+/ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS/
+/ INTERRUPTION)/
+/ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT/
+/ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY/
+/ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH/
+/ DAMAGE. /
+/ ========================================================================= /
+
+/ $Id: emacs.e,v 1.1 2000/04/27 16:33:47 petr Exp $ /
+
+
+/ emacs menu for cscope /
+((X) cscope (find current word [MACRO])
+ (extern symbol-character)
+
+ / if this character is not part of a symbol /
+ (cond ((not symbol-character)
+
+ / if the previous character is not part of a symbol, go to
+ the next word /
+ back
+ (cond ((not symbol-character) forward-word back-word))
+ ))
+ / get the current symbol (leave cursor at beginning of symbol) /
+ (while symbol-character forward) / go past last symbol character /
+ mark / mark this point /
+ back / back to last symbol character /
+ (while (cond (symbol-character (return back)))) / back fails at BOF /
+ (cond ((not symbol-character) forward)) / forward if not at BOF /
+ pickup-region / get the symbol /
+ (local-string symbol)
+ symbol=
+
+ / if arg > 0 then display the menu /
+ (cond ((> arg 0) (display-menu
+ (format symbol "5 Find functions calling %l()")
+ (format symbol "4 Find functions called by %l()")
+ (format symbol "3 Find global definition of %l")
+ (format symbol "2 Find symbol %l")
+ "1 Call cscope"
+ 5)
+ ))
+ / get the selection /
+ (local selection)
+ (selection= (read-character "Selection?"))
+
+ / if the selection is in range /
+ (cond ((&& (>= selection '1') (<= selection '5'))
+
+ / if the selection requests finding the symbol /
+ (local-string findsymbol)
+ (findsymbol= "")
+ (cond ((>= selection '2')
+ (findsymbol= (format (char-to-string (- selection 2)) symbol "-%l '%l'"))))
+
+ / if arg > 1 or < 0 then don't update the cross-reference database /
+ (local-string doption)
+ (doption= "")
+ (cond ((|| (> arg 1) (< arg 0)) (doption= "-d")))
+
+ / call cscope with usilent mode off /
+ (local oldmode) / save old usilent mode /
+ (oldmode= (set-mode "usilent" 0)) / turn off usilent mode /
+ (run-command (format doption findsymbol "cscope %l %l"))
+ (set-mode "usilent" oldmode) / restore usilent mode /
+ ))
+)
+/ see if the current character is part of a symbol /
+(symbol-character ()
+ (local c)
+ (c= current-character)
+ (return (cond ((&& (>= c 'a') (<= c 'z')))
+ ((&& (>= c 'A') (<= c 'Z')))
+ ((&& (>= c '0') (<= c '9')))
+ ((== c '_'))
+ )
+ )
+)