From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stephen Berman Newsgroups: gmane.emacs.help Subject: Re: `max-specpdl-size' and `max-lisp-eval-depth' Date: Tue, 28 Sep 2021 13:23:02 +0200 Message-ID: <87fstpt04p.fsf@gmx.net> References: <87ilyoukp2.fsf@zoho.eu> <20210926071351.GA10016@tuxteam.de> <83czovo5dh.fsf@gnu.org> <87k0j1t1mv.fsf@gmx.net> <877df1dk9p.fsf@gnus.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="8689"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: help-gnu-emacs , Hongyi Zhao To: Lars Ingebrigtsen Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Tue Sep 28 13:26:59 2021 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mVBGF-00020N-5D for geh-help-gnu-emacs@m.gmane-mx.org; 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Tue, 28 Sep 2021 13:23:03 +0200 In-Reply-To: <877df1dk9p.fsf@gnus.org> (Lars Ingebrigtsen's message of "Tue, 28 Sep 2021 13:14:42 +0200") X-Provags-ID: V03:K1:cs0Ur2F51/CTrweSuBuJj7Ek98Qq7uVygZ83cdwJM9WNEbCnSbG OT41/Fhi2831vIVNcLBVAve3Sc6MMdL3s8uptoTgOOWF1+H3q1sjCf2LTYVKt7Ca4AdAo7Z rghbtJoei8RPBftKjcob9AgC6EHPEIIAd3z1lcpon1wZb4A0Y+VB75zyYxYiOazZJp7j43+ rKxhxeaXJC04CtEdpe3vw== X-UI-Out-Filterresults: notjunk:1;V03:K0:8LDBqdxEDd0=:WaQYxsFjdwggDq6JxyKUMd uatWP7PtGXD36IBKqTQGwMkCAWewPYCVZI2Zj8F9CxtNxiAqZTGAjRdAPm8SR32BQypowMd/o 5SUluUZjUVfX0gj+MxMRo6aAt8pbACqRUpG0i1IE2N0bcmGwB5NXA1ru6td+E25se0uXFDdXi 2VE2kLl2CX1e5KDjzfVZ7SqncMVleBYSJ//kNR9LoN2b5P6ONn8Ui5QF13wNW47JqEnx9IKwR r22yAz95CSnNNFWdDEoBSG3/0b2g2EUJEIYvBtiCEWVj86zjkmx8WFbfEx/ODtRmH71WaXSED Q8ApZVG1g1EQvbkGTqk7BxbDU0n5pej8PGDcNVFhzEDq8Hr/pzwtqacSuq2kf2BBJK9dHqP7z RyBH1epWlPAwamm5LkB13cn0MU4s/3S8qnjwfYrAekbF4dc7JrZAc0fpQuVz3OJXgRM9IlZO5 a5QvIb6Z+ptXSW4Am7lKJyoSHgE+xBrEo4Xu5PRcUr9uhBEIWEXwon9Ci9xIsNWf3+XuLy5z4 T8wx/suYcRU0oJI9cd1pHaNNOlzdZAibCQS+NZYtBRJoxiSSjPRbiLWPpzNeg2UlwzbsTEfVh SL7tbs00l/IY8izk8H4TTtYgdpJ1HUL0Dj84Sg7nGwkqzxIIBbwWYhhT4shSMMg9waPuIYTwJ k1Ao9GMSYRRno1UlLlasgjYLOvNZ8Van8/Pyz5AxL3XxLusgLBVvl7SQak1un4S7MnF2SnOrL LR/BLN+nmqraDQx81aMNXkNLZJElS/xsjTV97TgGnQjKaNKFmCSomg+c/QiX+4YjRTsErDxO Received-SPF: pass client-ip=212.227.15.19; envelope-from=stephen.berman@gmx.net; helo=mout.gmx.net X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:133342 Archived-At: On Tue, 28 Sep 2021 13:14:42 +0200 Lars Ingebrigtsen wrote: > Stephen Berman writes: > >> The term goes back to the beginnings of Lisp (McCarthy's paper from >> 1960, available via the Wayback Machine from >> http://www-formal.stanford.edu/jmc/recursive/node4.html): >> >> In general (we shall discuss an exception), the routine for a >> recursive function uses itself as a subroutine [...] This possible >> conflict is resolved by the SAVE and UNSAVE routines that use the >> public push-down list. > > Perhaps we should put something about this in the `max-specpdl-size' doc > string. You wouldn't happen to know what the "spec" part is referring > to? :-) I think that's from the Common Lisp term "special variable" for a global (i.e. non-lexical) variable. I don't know where that term originated, maybe Maclisp. Steve Berman