Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.compilers > #3017

Table driven LL.

Path csiph.com!weretis.net!feeder6.news.weretis.net!news.misty.com!news.iecc.com!.POSTED.news.iecc.com!nerds-end
From Christopher F Clark <christopher.f.clark@compiler-resources.com>
Newsgroups comp.compilers
Subject Table driven LL.
Date Sun, 22 May 2022 12:24:01 +0300
Organization Compilers Central
Lines 22
Sender news@iecc.com
Approved comp.compilers@iecc.com
Message-ID <22-05-044@comp.compilers> (permalink)
Mime-Version 1.0
Content-Type text/plain; charset="UTF-8"
Injection-Info gal.iecc.com; posting-host="news.iecc.com:2001:470:1f07:1126:0:676f:7373:6970"; logging-data="48845"; mail-complaints-to="abuse@iecc.com"
Keywords parse, LL(1)
Posted-Date 22 May 2022 13:01:44 EDT
X-submission-address compilers@iecc.com
X-moderator-address compilers-request@iecc.com
X-FAQ-and-archives http://compilers.iecc.com
Xref csiph.com comp.compilers:3017

Show key headers only | View raw


George Neuner speculated that table driven LL parsing is possible, and
I will answer yes.  When I was in college taking my compilers course
(circa 1976) our teacher (Dr Burton J Smith who later ran Cray) had us
implement a table driven LL parser (as well as a recursive descent
one, and an LR one so that we would see the different techniques and
how they applied--we also did a regular expression state machine as
the first homework).

One can also uses FAs to implement the rule selection process of LL
(and do your rules as regular epxressions/FAs also). There are many
combinations that work.

Kind regards,
Chris

--
******************************************************************************
Chris Clark                  email: christopher.f.clark@compiler-resources.com
Compiler Resources, Inc.  Web Site: http://world.std.com/~compres
23 Bailey Rd                 voice: (508) 435-5016
Berlin, MA  01503 USA      twitter: @intel_chris
------------------------------------------------------------------------------

Back to comp.compilers | Previous | Next | Find similar


Thread

Table driven LL. Christopher F Clark <christopher.f.clark@compiler-resources.com> - 2022-05-22 12:24 +0300

csiph-web