From: John Prevost <j.prevost@cs.cmu.edu>
To: dengping zhu <zhudp@cs.bu.edu>
Cc: John Prevost <j.prevost@cs.cmu.edu>, Ocaml <caml-list@inria.fr>
Subject: Re: [Caml-list] infix precedence
Date: 28 May 2002 14:07:07 -0400 [thread overview]
Message-ID: <86g00cf8ok.fsf@laurelin.dementia.org> (raw)
In-Reply-To: <Pine.SOL.4.20.0205281308380.4380-100000@csa.bu.edu>
>>>>> "zd" == dengping zhu <zhudp@cs.bu.edu> writes:
zd> I want to convert these code into ocaml. How can find so many
zd> different 'first characters'? Because the available characters
zd> in ocaml are:
zd> **... right *... /... %... left +... -... left @... ^...
zd> right
zd> Do you have any sugestion?
Take a look at section 6.7 of the manual for precedence rules, and
section 6.1 (under the heading "Prefix and infix symbols") for the
list of symbols. In short, this is the list of all the available
infix symbols, in order of precedence:
!... ?... ~... prefix
**... right
*... /... %... left
+... -... left
@... ^... right
=... <... >... |... &... $... %... left
This means that you might have some trouble with your infix levels,
but there are normally ways to organize things for what you'd like. I
find, also, that having just a few levels and using parenthesis for
the rest of the time can work quite well. As you note, using this
style for everything can be painful, but having infixes for only a few
specific things can help immensely.
John.
-------------------
To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr
Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/
Beginner's list: http://groups.yahoo.com/group/ocaml_beginners
next prev parent reply other threads:[~2002-05-28 18:01 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-28 15:42 dengping zhu
2002-05-28 15:54 ` Remi VANICAT
2002-05-28 16:00 ` John Prevost
2002-05-28 17:19 ` dengping zhu
2002-05-28 18:07 ` John Prevost [this message]
2002-05-28 18:16 ` dengping zhu
2002-05-28 18:32 ` Daniel de Rauglaudre
2002-05-28 18:48 ` dengping zhu
2002-05-28 22:44 ` Daniel de Rauglaudre
2002-05-29 2:48 ` dengping zhu
2002-05-29 8:42 ` Daniel de Rauglaudre
2002-06-21 17:54 ` dengping zhu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=86g00cf8ok.fsf@laurelin.dementia.org \
--to=j.prevost@cs.cmu.edu \
--cc=caml-list@inria.fr \
--cc=zhudp@cs.bu.edu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).