http://blog.gmane.org/gmane.comp.lang.smalltalk.fonc hourly 1 1901-01-01T00:00+00:00 http://gmane.org/img/gmane-25t.png http://gmane.org http://comments.gmane.org/gmane.comp.lang.smalltalk.fonc/549 Michael Haupt 2008-05-17T14:43:55 http://comments.gmane.org/gmane.comp.lang.smalltalk.fonc/544 > sh pull pulling from http://fig.org/ocean/hg.cgi searching for changes no changes found 0 files updated, 0 files merged, 0 files removed, 0 files unresolved pulling from http://fig.org/ocean/mq.cgi searching for changes abort: repository is unrelated What's going on here? I have some fixes to libid I'd like to contribute. Kurt Stephens http://kurtstephens.com Kurt Stephens 2008-05-07T15:39:14 http://comments.gmane.org/gmane.comp.lang.smalltalk.fonc/543 Hi, The following crashes Jolt2: (syntax test-quasiquote (lambda (node compiler) (let ((expr `(printf "hello world\n"))) [StdOut print: expr] [StdOut cr] expr))) (test-quasiquote) The output is: (#printf (104 101 108 108 111 32 119 111 114 108 100 10)) I can see from function/jolt2/boot.k that quasiquote doesn't handle constant strings correctly, so they get treated as if they are a list of integers (because they are vectors too). I don't know how to fix this right now given the tools in the current Jolt2 parser. Are there any suggestions? Michael FIG 2008-05-06T00:36:41 http://comments.gmane.org/gmane.comp.lang.smalltalk.fonc/536 Hi all, I created an interesting derivative of function/objects/Stream.st called PipeStream.st. It uses the POSIX <ucontext.h> functions to implement fully deterministic coroutine-based streams whose producer is a BlockClosure. Any attempt to read the stream transfers control to the producer coroutine (running on the same OS thread) where it attempts to provide enough data to fill the request. From the producer's point of view, they just run to completion. It's like other languages' "generators" feature, but without having to do an explicit "yield". The PipeStream machinery just detects when you write enough objects back to it (or write a few then exit), then resumes control in the reader. I'm quite happy with it, and will be using it to separate my C preprocessor into multiple pipelined parsing stages so that each stage is independent and easier to debug. The only downside I can see is that <ucontext.h> is not all that common. I don't know if something like it exists for Windows (actually, NT Fiber Michael FIG 2008-05-02T13:04:48 http://comments.gmane.org/gmane.comp.lang.smalltalk.fonc/535 Hi Ian (since I think you're the only person who can answer), I'm trying to parameterize a Jolt2 grammar so that it can vary based on runtime function calls. What I would like is similar functionality to OMeta's semantic predicates. Here's a snippet from the grammar to illustrate the situation: // Not necessarily the best syntax, but is chosen to mean that // doTrigraphs matches iff [self trigraphsEnabled] evaluates // to nonzero. doTrigraphs=? [self trigraphsEnabled] // This is a backslash trigraph. trigraphBs= '??/' <- '$\\ // This matches either a regular backslash, or a trigraph version // if [self trigraphsEnabled] evaluates to nonzero. backslash= '\\' | doTrigraphs trigraphBs BTW, a somewhat related question: what are the '=>' and '<=' grammar operators? I tried understanding them, but there are no examples, and the code was not obvious. Thanks, Michael FIG 2008-05-02T03:36:31 http://comments.gmane.org/gmane.comp.lang.smalltalk.fonc/528 Hi all, I was wondering if any of you out there have a freely licensed PEG for C? I'm interested in combining it with a C preprocessor grammar to start interpreting (or compiling via Slink) some C code. With a little work, this would be extensible to handle Id code, and then we'd be one step closer to bootstrap. If not, I have at least a decent BNF reference at http://ivs.cs.uni-magdeburg.de/~puma/UsersManual/HTML/node12.html though I would rather start from something that has all the operator precedences completed in PEG format. Thanks, Michael FIG 2008-05-01T01:54:10 http://comments.gmane.org/gmane.comp.lang.smalltalk.fonc/527 Dear all, just a brief notice that my COLA tutorial ("Implementing Brainfuck in COLA") is available in an updated version. The update does not bring anything fundamentally new, just enhancements, mostly in terms of accuracy. http://www.swa.hpi.uni-potsdam.de/tutorials/cola/index.html Best, Michael Michael Haupt 2008-04-30T19:41:15 http://comments.gmane.org/gmane.comp.lang.smalltalk.fonc/518 Aaron Gray 2008-04-27T21:18:10 http://comments.gmane.org/gmane.comp.lang.smalltalk.fonc/511 Felix Rabe 2008-04-20T15:12:10 http://comments.gmane.org/gmane.comp.lang.smalltalk.fonc/508 Hi, The attached patch provides much better support for the jolt-burg grammar features that aren't implemented in function/jolt2/ColaGrammar.st. Please reverse my last jolt2-fixes.patch (if you applied it) before applying this one. Inspired by OMeta, I added a new 'EXTENDS:' keyword (which can appear after the grammar rules but before the optional start expression) which allows you to import rules from another grammar. The import doesn't overwrite existing rules, and you can use EXTENDS: as many times as you like. With that established, I added a new ColaGrammar-derived grammar to jolt2/boot.k that implements the missing features. Reading that file in conjunction with function/jolt2/ColaGrammar.st and the other function/examples2 parsers should give you a good idea of how to use jolt2's parsing features. It should be possible to strip even more out of ColaGrammar and put it into boot.k. I'll leave that as an exercise for the reader. Maybe now would be a good time to update the Brainf*ck tutorial? [ Michael FIG 2008-04-17T05:34:08 http://comments.gmane.org/gmane.comp.lang.smalltalk.fonc/507 Hi, I've been spending some quality time with jolt2, and here are some basic patches I needed to get things working. $ cd function/jolt2 $ make # builds jolt2 $ make test # runs sanaras.k $ make test-old # runs function/examples with jolt2 $ cd ../examples2/bunnu $ make test test-old just helps show where jolt2 is missing a few features. So far only select, slotnames (of course), x-drawing, and x-event work correctly. I only found two little problems with ColaParser: * Hexadecimal and binary literals weren't being parsed correctly (the '0' in '0x' would always get sucked up by the decimal parser, and '0b' wasn't yet implemented). * Character literals ($c, $\n, etc) weren't implemented. The rest of this patch is a baby step towards fixing function/examples. I'll update it as I get more working (if I have to break any of the tests' compatibility with jolt-burg, I will first copy them into examples2). Have fun, Michael FIG 2008-04-15T05:32:50 http://comments.gmane.org/gmane.comp.lang.smalltalk.fonc/506 John Leuner 2008-04-14T16:30:41 http://comments.gmane.org/gmane.comp.lang.smalltalk.fonc/502 Folks, I just added idst/function/jolt2 and idst/function/examples2 to the repository. The subject line says the rest. Documentation to follow soon. It's experimental and certainly contains bugs. Break it and/ or criticise it violently. Cheers, Ian Ian Piumarta 2008-04-10T19:36:55 http://comments.gmane.org/gmane.comp.lang.smalltalk.fonc/499 I'm on a macbook air and this is my first build on this laptop: % uname -a Darwin wrath.local 9.2.2 Darwin Kernel Version 9.2.2: Tue Mar 4 21:17:34 PST 2008; root:xnu-1228.4.31~1/RELEASE_I386 i386 % sw_vers ProductName:Mac OS X ProductVersion:10.5.2 BuildVersion:9C7010 # just the failures: % make /bin/sh -ec 'for dir in object function; do ( cd $dir; make ); done' /Users/ryan/Work/svn/idst/object /bin/sh -ec '( cd boot; make )' /Users/ryan/Work/svn/idst/object/boot /bin/sh -ec 'cd ../gc6.7/; test -f config.log || ABI_FLAG="-arch i486" ./configure --enable-threads=posix --enable-large-config; make ABI_FLAG="-arch i486"' Making all in doc /Users/ryan/Work/svn/idst/object/gc6.7/doc make[4]: Nothing to be done for `all'. Making all in include /Users/ryan/Work/svn/idst/object/gc6.7/include make[4]: Nothing to be done for `all'. if /bin/sh ./libtool --mode=compile gcc -DPACKAGE_NAME=\"gc\" - DPACKAGE_TARNAME=\"gc\" -DPACKAGE_VERSION=\"6.7\" -DPACKAGE_STRING=\"gc \ 6.7\" -DPACKAGE_BUGREPORT=\"Hans.Bo Ryan Davis 2008-04-10T01:39:29 http://comments.gmane.org/gmane.comp.lang.smalltalk.fonc/492 Hi Ian, FYI, this is today's patch for building latest svn tree on my Windows. One is Windows specific, and two are about Makefile for gc6.7 matter. Cheers, - Takashi Takashi Yamamiya 2008-04-08T20:30:10 http://comments.gmane.org/gmane.comp.lang.smalltalk.fonc/483 Hey everyone, My brain's probably fried from coding for too many consecutive hours, but this following looks kinda strange to me: (from function/objects/Array.st): Array size_: _size value_: _value [ self := self new: (SmallInteger value_: _size). _oops := _value. { int i; for (i= 0; i < (int)v__size; ++i) ((oop *)self->v__oops)[i]= *((oop **)v__value)[i]; }. ] What is that "_oops := _value." doing? Dan Dan Amelang 2008-04-07T23:12:01 http://comments.gmane.org/gmane.comp.lang.smalltalk.fonc/471 Hi, I just noticed that you have to take care about SELinux issue when you build idst on linux. An easy way is to run: chcon -t texrel_shlib_t *.so wherever error occurs, or to rewrite Makefile. Real problem is this error message (st80.so: No such file or directory) means nothing. I spend about this issue half day with gdb so I send the email if it helps someone. Cheers, - Takashi Index: object/Makefile =================================================================== --- object/Makefile(revision 400) +++ object/Makefile(working copy) < at >< at > -8,18 +8,22 < at >< at > boot : .config-stamp .FORCE -$(SHELL) -ec '( cd boot; $(MAKE) )' +-chcon -t texrel_shlib_t boot/*.so stage1 : .FORCE -$(SHELL) -ec '[ -d stage1 ] || mkdir stage1' $(SHELL) -ec 'for dir in $(SUBDIRS); do ( echo $$dir; cd $$dir; $(MAKE) IDC="../boot/idc -B../boot/ -O" BIN="../stage1/" ); done' +-chcon -t texrel_shlib_t stage1/*.so stage2 : .FORCE -$(SHELL) -ec '[ -d stage2 ] || mkdir stage2' $(SHELL) -ec 'for dir in $(SUBDIRS); do ( ec Takashi Yamamiya 2008-04-02T21:43:27 http://comments.gmane.org/gmane.comp.lang.smalltalk.fonc/465 Dear all, is it somehow possible to have, in Jolt, the equivalent of the following C code? void f() { static int x = 0; ... x++; ... } Best, Michael Michael Haupt 2008-04-01T13:59:14 http://comments.gmane.org/gmane.comp.lang.smalltalk.fonc/464 After making the changes to object/boot/configure (below) I was able to build the first idc. Now the build fails with a "primitive error handling failed" idc error as shown here: make[2]: Leaving directory `/home/karl/osrc/languages/COLA-idst/object/boot' /bin/sh -ec '[ -d stage1 ] || mkdir stage1' /bin/sh -ec 'for dir in id st80 idc; do ( echo $dir; cd $dir; make IDC="../boot/idc -B../boot/ -O" BIN="../stage1/" ); done' id make[2]: Entering directory `/home/karl/osrc/languages/COLA-idst/object/id' make[2]: Nothing to be done for `all'. make[2]: Leaving directory `/home/karl/osrc/languages/COLA-idst/object/id' st80 make[2]: Entering directory `/home/karl/osrc/languages/COLA-idst/object/st80' ../boot/idc -B../boot/ -O -k -c _object.st -o ../stage1/_object.o primitive error handling failed (0x686d28 (nil)) make[2]: *** [../stage1/_object.o] Error 1 make[2]: Leaving directory `/home/karl/osrc/languages/COLA-idst/object/st80' idc make[2]: Entering directory `/home/karl/osrc/languages/COLA-idst/object/idc Karl Robillard 2008-03-29T22:31:21 http://comments.gmane.org/gmane.comp.lang.smalltalk.fonc/459 Kjell Godo 2008-03-23T13:58:07 http://comments.gmane.org/gmane.comp.lang.smalltalk.fonc/457 Hello, FYI: Registration for S3 ( http://www.swa.hpi.uni-potsdam.de/s3/ ) is now open. Please consider joining us! Cheers, Kim Kim Rose 2008-03-19T15:19:26 Search the mailing list at Gmane query http://search.gmane.org/?group=$group=gmane.comp.lang.smalltalk.fonc