ok. I tried what I said and it really works...
R
2009/3/11 Rudolf Sykora :
> Hello,
>
> I'd like to teach my plan9 read my Czech keyboard.
> But I don't know exactly what I have to change.
> I wonder if it's enough to modify e.g. /sys/lib/kbmap/us, save it to
>
Hello everybody,
I noticed there are some thoughts about using plan9 on supercomputers.
For me supercomputers are usually used to do some heavy calculations.
And this leads me to a question. What software is then used for
programming these calculations? (I mean e.g. linear algebra, i.e.
matrix, ca
Hello
after some time I crossed this matter again...
/old/c/new/
doesn't scroll to the dot where the change happens in neither sam nor acme.
My feeling is that it should. (Should there be any reason for
different behaviour compared to the situation when the command is
split as /old/ followed by c
Hello all
is there any good reason for a double click (in rio, sam, acme, ...)
to select a word (probably) defined by sth. like
/[a-zA-Z0-9_]+/
and not sth. white-space delimited instead?
Double clicking e.g. on 'text.txt' only selects 'text' or 'txt', while
one usually wants the whole. The same
ok then. :)
r
> one man's `usually' is another man's `never'.
> it's one reason i use 9term on linux.
> we probably both say ``what were they thinking??'' about
> contrary effects.
Hello,
Imagine I have a rio window with a long history, i.e. lots of text
have been entered and the scroll bar is just a tiny box. And I'd like
to clear everything, so that only the last prompt remains. I know I
can clear some portions with a mouse. But that is often tedious. Is
there any nice way
2009/4/7 Francisco J Ballesteros :
> In omero double click does the same, and triple is more hungry. You could
> try that modifying your local system
That's a good idea. I'll try.
thanks
r
2009/4/8 hugo rivera :
> In acme you can do something like
> Edit ,$-1d
> but I don't know how to deal with a terminal outside acme.
Well, this is true. In an editor you have the wings...
[Btw., also reading a man page is somewhat easier in an editor for me
since I can search in the text then, whi
Hello,
I've been thinking about 'well documented programs' and come across
the 'noweb' program.
Do you have any experience with literal programming and, particularly, noweb?
(I noticed at least rsc seems to have played with it back in the year
2000. He programmed some scripts to use the system in
> Just curious... what's the relation to Cweb and Ctangle (the ones Knuth uses)?
>
> From what I've heard of those (even from Knuth himself) is that
> they're too ugly to use very much, and fits well with Knuth's style,
> which is mostly the "giant blob of code" style.
As far as I can tell, cweb (
Hello,
I've been wondering (and not reading much)...
If I'd like to use plan9 as a www server, is there anything ready?
How difficult would it be to use rails or merb in plan9? Is it feasible?
thanks
ruda
>
>> How difficult would it be to use rails or merb in plan9? Is it feasible?
>
> Very difficult. No, not feasible. You would have to port Ruby. And
> then possibly rails, too. Plan 9 isn't UNIX, or UNIX-like, or POSIX
> (or POSIX-like). APE helps with some stuff, but not all the way.
I thought I'
2009/4/17 maht :
>
How difficult would it be to use rails or merb in plan9? Is it feasible?
>
> Not Rails or merb or anything non Plan 9 but a few of us are building an rc
> shell based system that works anywhere CGI and Plan 9 / plan9port is
> available.
>
> http://werc.cat-v.org/
Yes, I've
> Writing the core of a blog engine in three lines of rc is hard to
> beat, plus you get the benefit of being able to manipulate and manage
> all your data using the tools any self respecting Unix user loves.
>
> uriel
well, I haven't thought about it deeply yet, but what I guess could be
a proble
2009/4/17 maht :
>
>> well, I haven't thought about it deeply yet, but what I guess could be
>> a problem with your approach is that many features would have to be
>> somehow implemented first so that it all be useable. I mean e.g. ajax
>> style of page content refresh, session management, perhaps
Hello,
when using 'sam -d' to remotely edit files I really miss the option to
print line numbers along with lines, like ed's e.g. '1,10n'.
Is there anything like that? Why not?
Thanks
Ruda
Hello everyone,
just a question:
Playing with squeak smalltalk implementation I've wondered if there
could be squeak (with all its ready environment) ever running under
plan9. Has anybody thought about that?
... I've found seaside (web devel. framework) rather interesting. It's
more like program
Hello everyone,
2 questions...
1)
The linux servers around me reject ssh v1 protocol by default, only
seem to accept v2. The version commonly available in plan9 seems to be
v1. As long as I connect to my own machine, where I allowed v1
connection, no problem. But is there any working v2 client?
I
Hello everyone!
To get some useful information from a file I write:
; for (i in *_r) @{cd $i; echo -n $i^' '; grep total otdit | grep -v na}
to get lines from the 'otdit' files in *_r subdirectories with the
word 'total' on them, but no 'na' on them. This works to my liking and
produces sth. li
2009/5/5 Anthony Sorace
> what's surprising is that this behavior changed based on *only*
> changing the > to a >>. you're sure you didn't change placement as
> well? i'd have expected your output file in the > case to match the
> results for the last _r label from the output file in the >> case.
2009/5/5 roger peppe :
> {for (i in *_r) @{cd $i; echo -n $i^' '; grep total otdit | grep -v na}} >
> res
>
with this I get the same as with
for (i in *_r) @{cd $i; echo -n $i^' '; grep total otdit | grep -v na} >> res
which is now reasonable, having read R. Cox' post.
Thanks
ruda
2009/5/5 Anthony Sorace :
> // ];/home/sykora/CALC/doing/tests/10_r/-xeon4 10_r ...
>
> i think these are escape sequences generated by a defined 'cd'
> function containing awd. do "fn cd" before you run this to undefine
> the function and this should go away.
true.
thanks
ruda
> You've got the cd implementation from label(1) loaded.
> In interactive mode, it echos escape codes that are
> supposed to update the label in your terminal window.
> Instead it wrote them to the redirected file.
>
> I changed label to write to /dev/tty explicitly, which should
> avoid this probl
Hello everyone,
I just realized there are no 'continue' and 'next' commands in rc. Is
there any way to e.g. quit the loop when one wants?
Thanks
Ruda
Hello
when I try '9fs sources' I get a timeout establishing connection...
(all day today)
I guess it's not my problem, or is it?
Thanks
Ruda
(why does this happen SO OFTEN?)
>> (why does this happen SO OFTEN?)
>
> warning: complaining about something you get for free is
> counter-productive. Unless, of course, you are also offering to help
> in some way.
>
> ron
well, maybe. Maybe not.
In order I be of any help I need to know why the hell this happens,
first. I know
> While not having direct knowledge of what caused the current outage, I
> can say that such outages are rarely caused by Plan 9 or the hardware
> on which its running.
Ok. So what caused the other outrages in the recent past?
(I may give at least one other date, on which I even asked the same
que
> nobody's saying anything, so i will: a kfs system will be left in an
> "allowed" state if all the mirrors fail.
well, knowing little, having come late, perhaps, I do not understand...
Thanks
Ruda
Hello,
I wanted to install python. From /n/sources/contrib/bichued/python I downloaded
python-2.5.1-ape.tgz
python-2.5.1-sys.tgz.
I untared the former in my home directory.
I untared the latter in / (I got /sys/python created...) --- this I
read in README.Plan9 file in python-2.5.1-ape.tgz.
Als
Hello,
since I somehow still can't connect to the 'central sources' and want
to make some progress, I tried to follow some of your recent advices.
Instead of '9fs sources' I do
9fs sources.lsub.org
cd /n
bind sources.lsub.org/sources sources
so now it seems I have the state similar to after just
Thanks a lot!
Ruda
2009/5/26 Devon H. O'Dell :
> 2009/5/26 :
>> I've just pushed out to sources a new USB implementation, courtesy of
>> nemo, who debugged and repaired our old UHCI and OHCI drivers, wrote a
>> new EHCI driver for USB 2, converted the user-mode drivers in /bin/usb
>> and tested i
OK. So I changed the line
from
/dist/replica/contrib:7: fn servermount { 9fs sources }
to
/dist/replica/contrib:7: fn servermount { test -d /n/sources/plan9 ||
9fs sources }
and it seems to work as wanted...
thanks to all
Ruda
2009/5/27 Federico G. Benavento :
>> I think it would be better for
Hello,
when a rio window with 'rc' running inside is used for entering
commands it happens, after some time, that the amount of text is
excessively high. If the text in the window could be edited (I mean
not manually), then from time to time I could run some program that
would leave only the last
Hello,
it is somehow unclear to me, what happens in a 'win' window when I
2-click 'Undo' or 'Redo' (I write it somewhere manually). Are some
commands processed again? (I happened to delete some text from the
window and thus had the idea to write 'Undo' and 2-click on it; sth.
happened, but I am pu
Ok. It works so.
Thanks
Ruda
> If as a result of those operations, new text appears
> after the cursor output point, that text is sent to the
> shell running in the window (or whatever is reading
> from the console).
>
> Russ
Hello,
I've noticed two strange things about acme:
1) when I snarf the name (or a part of it) of a file with a mouse (in
the tag line) using 1-2, 1-3 mouse chord, the file is marked dirty. (I
think it should not.)
2) i) when I open a win window, 'win' appears in the topmost tag line
(if you open 2
> Probably you have already noticed it, but if the dirty mark annoys you
> can always select with 1 and use Snarf.
> - yiyus || JGL .
yes, I have, thanks anyway :)
r
Hello,
I realized I cannot come up with a simple solution for the following.
I want to rename all the files whose names end with _g_b to just _g,
e.g. hello_g_b should be renamed to hello_g.
I simply don't know an easy way.
[the opposite way is simple: for(i in *_g) mv $i $i^_b ]
I only think abou
> sed is your friend:
>
> s=`{ echo $i | sed -e 's/_g_b/_g/' }
>
>
> Martin
Oh yes, that's it.
Thanks
Ruda
Hello,
Still wonder, what's the right way to make the following work:
This is ok:
sam -d <[2] /dev/null
1s/(.+)_g/\1
p
EOF
but now I want it all be inside `{}, like
s = `{sam -d <[2] /dev/null
1s/(.+)_g/\1
p
EOF
}
which doesn't work. I tri
> should be written as:
> s = `{sam -d <[2] /dev/null}
>...
>EOF
>
> Hope that helps,
>Martin
OK, now I see. The } was at the wrong place...
Thanks Martin
thanks Russ, too.
Ruda
Hello everyone,
when I want to process a dot's contents in acme I can use the '>' syntax, e.g.
have
> awk '{print}'
in a window, select it, and then 2-1 click on Edit in the window with
my dot. That works.
But what shall I do when the awk script is more complicated, in the
simplest case like
>
> Put the awk code into a file and execute '> awk -f foo' in acme.
well, I hoped this would be the last way... It makes me create files I
don't actually need.
Is it the newlines that causes troubles?
Thanks
Ruda
> remember, this is plan9 and everything is a file. chances are your
> "script" is already available in some filesystem and you don't need to
> write it out:: create a new window inside acme, type your awk script
> and then issue ">awk -f /mnt/wsys/X/body" where X is the ID of your
> window.
well,
> and you want somebody do look through the code and figure it out for you?
not really. I wanted to know whether
1) somebody thought about it (knowing the system has been around for
some time I'd expect somebody must have had the same problem)
2) there is any good reason why it behaves so.
Ruda
> See http://swtch.com/~rsc/acme-Run.png for an illustration.
>
> Russ
Thank you much!
This is what I need and now I see how it can be achieved...
:)
Ruda
Hello everyone,
might be I am doing something wrong, but this seems to me like a bug...
In some acme window I have a command, e.g simply s/f/g/, I select it
with a mouse and 2-1 chord it on the Edit command in a tag line of a
window in which there is win running and also some text (for us e.g.
ab
> This is a design bug in acme.
> Russ
Ok, I understand. Thanks for the explanation!
Ruda
Hello everyone,
1) If I want to set the hardware (on-board) clock by hand, how can I?
2) If I want to synchronize the hardware time with a ntp server (once
/ periodically), how can I?
3) If I run the 'timesync -n [ntp server]' command, how is the
frequency of synchronization determined? If I run i
2009/6/26 hugo rivera :
> I tested the command you suggested (,x/\/\*/.,/\*\//) and it works as
> I wanted, thanks. But there's something I still don't understand and
> is the meaning of that comma in there. As far as I know, the comma is
> a mark that delimits the addresses that acme understands,
I think, if you write 'Indent on' somewhere in a window (e.g. the tag
line) and execute it, indentation will be on for the given window; if
you use 'Indent On' instead, it sould be set for all windows.
Further, I guess off/Off should work the opposite way. The man page has it.
Ruda
2009/7/3 Aaron
see also 'acme -a'
> auto-indenting in plan9port's Acme editor?
Hello everyone,
can anybody tell me why whatever .ps about troff/eqn I print has
misplaced lines?
E.g. quite generally, lines that make up tables either don't touch, or
stick out somewhere...
Also, should
.BX something
make a nice box around 'something' or not? Anywhere I look I see the
top line
2009/7/8 Russ Cox :
> On Wed, Jul 8, 2009 at 4:49 AM, Rudolf Sykora wrote:
>> can anybody tell me why whatever .ps about troff/eqn I print has
>> misplaced lines?
>> E.g. quite generally, lines that make up tables either don't touch, or
>> stick out somewhere...
2009/7/8 Russ Cox :
> I assume you have a non-Plan 9 machine to play with.
> It's worth trying Heirloom troff there to see if the boxes
> are done better. They probably are.
as far as I see, they are not better.
> I need to fall back to the Plan 9 troff, because the low-level
> details seem to d
Hello,
is there anything ready for troff/eqn that could help me with
1) automatic equation numbering with possible setting a label to an
equation by means of which one could forward/backward reference the
equation?
2) setting a label somewhere in the text, so one can reference it and
obtain e.g. a
Hello,
I noticed that when running acme in plan9port and having its
directories mounted say on /mnt/acme, then if I try from within a win
window in the acme to auto-complete a directory name---I am in /mnt, I
type 'a' and hit the 'insert' key or ctrl-f, or I am anywhere inside
the acme filesystem-
2009/8/5 Russ Cox :
> On Tue, Aug 4, 2009 at 10:33 AM, Rudolf Sykora wrote:
>> I noticed that when running acme in plan9port and having its
>> directories mounted say on /mnt/acme, then if I try from within a win
>> window in the acme to auto-complete a directory name---I am
Hello everyone,
I want to connect to a ssh server (v1) with the plan 9 ssh command.
However, the server runs on a non-standard port (not 22).
I can't figure out, how to specify the port number for the ssh command.
Thanks...
Ruda
Thanks a lot...
It works.
... I always forget that that leading tcp! is really necessary :)
(even though I know why, on second thought)
Ruda
2009/8/9 Lyndon Nerenberg :
>> Hello everyone,
>> I want to connect to a ssh server (v1) with the plan 9 ssh command.
>> However, the server runs on a non-st
Also check the Run script we discussed earlier in this forum. Could be
of help...
Ruda
2009/8/10 Aaron W. Hsu :
> Hello,
>
> When using guide files, let's say I have some Edit command or the like that
> I run often on certain types of files. So I have the guide file open, and I
> can copy the comm
A few words pertaining one of your points.
2009/8/10 Jason Catena :
> For example, I often run "|fmt -w 72" to justify a paragraph in a text
> file. With wily, I can highlight text in any window, and justify the
> text from one copy of the command stored in any guide file. With
> acme, I can't
2009/8/10 Jason Catena :
> And so it does. I assumed I could only use Edit in conjunction with
> sam commands, but apparently Edit (or at least its author) is smarter
> than that.
Well, I'd say, that |... thing still _is_ a sam command..., only
delivered to the Edit command via the chord now.
(Al
Hello everyone,
I have, by mistake, deleted a file.
I use fossil.
I don't know much about how fossil works...
Can I do something to get it back?
I tried yesterday, but it says /n/dump/2009 doesn't exist.
I looked in /n/dump and there is nothing.
I tried '9fs dump' but even after that /n/dump/ is
Hello everyone
Why do I get an ugly result when trying to typeset (in file 'a')
.EQ
a + left ( A + B right )
.EN
with
eqn a | troff | dpost -f > a.ps?
I am getting an equation in which the 'A+B' is significantly shifted
downwards inside the (), so that the two pluses just don't line up...
Than
... Do I need venti to be able to use the dump feature?
Thanks
Ruda
2009/8/13 Anthony Sorace :
> you need venti for dumps, but not snapshots. do "9fs snap" and then
> see if there's anything in /n/snap. these are ephemeral, not archival.
>
> i don't believe fossil ships with these turned on by default, so
> you're likely SOL, sorry.
Well, after
9fs snap
/n/snap
is
Hello,
in a newbie-guide.pdf
www.quanstro.net/newbie-guide.pdf
I read:
Column Menu:
Snarf --- Copy the selected text into the snarf buffer (from anywhere in the
column).
For me it doesn't work like that. For me _all_ column menu Snarf
(Past, Cut) commands are equivalent irrespectively of the
One more trial...
Really nobody uses 'eqn' these days?...
Thanks
Ruda
2009/8/13 Rudolf Sykora :
> Hello everyone
>
> Why do I get an ugly result when trying to typeset (in file 'a')
>
> .EQ
> a + left ( A + B right )
> .EN
>
> with
> eqn a | tro
> i do see that the +s don't line up, but only by 1 pixel.
> why do you think they should? i would think that the
> centerline of the left ( right ) business should line up
> with the centerline of a +. but that's an uneducated
> guess. can you point to a reference that says eqn
> behaves as you
Hello everyone,
I'd like to ask whether anyone encountered problems when one turns off
the hardware acceleration with
cat hwaccel off > /dev/vgactl
When I do it, my mouse leaves some garbage at some points, or, e.g. I
can't nicely select text with the mouse---there are some pieces
missing.
I fou
>> Considering that Plan 9 has only two inherent languages,
>> and its users often push for work to be done in only those,
>> what is the Plan 9 perspective of languages and tools in
>> relation to each other?
I guess rc & C are meant.
True, I feel to be pushed to these. On the other hand I really
2009/9/7 SHRIZZA :
>> I'd like to ask whether anyone encountered problems when one turns off
>> the hardware acceleration with
>> cat hwaccel off > /dev/vgactl
>
> Of course, you mean "echo -n hwaccel off > /dev/vgactl", right?
>
yes, 'echo', not 'cat', actually
echo hwaccel off > /dev/vgactl
So is it so that anybody using vesa should see it in plan9 when
hwaccel is off or when inferno runs on plan9 regardless the state of
hwaccel?
(At school I use i81x and plan9 itself is ok with both on/off.)
Thanks
Ruda
2009/9/7 Charles Forsyth :
> there's a bug in the control of the software curs
Hello,
simple task.
I want to change the 2nd field on each line of a file, but preserve
the spacing of the lines.
If I do
awk '{$2="hell"; print}' file
the field gets changed, but all the spacing of the lines is gone; i.e.
any space is now just ' ' like this:
1 3 4 8
changes to
1
2009/9/17 matt :
> sed 's/^([^ ]+ +)([^ ]+)/\1HELL/'
Well, actually, my problem is a part of a more complicated script; I
don't know in advance neither the column nor what to put there.
I currently have this
awk '
/TH/ {$'$pos'='$new'}
{print}
' inpch
where 'TH' plays a role of a g
2009/9/17 matt :
> awk '{a=$2; sub(a, "hell"); print}' file
The trouble with this is that the same string can appear more than
once (before, after the field, ...), so the simple substitution isn't
enough.
Ruda
Ok. Thanks again. I think I've found what I need.
(on lines of 'inpch' that contain 'TH' I change the field at position
$pos to be $new, preserving spacing made of 'space's and/or tabs).
If anyone comes up with sth. simpler...
Ruda
(The script is for 'rc', btw., so that the concatanation on the 3
Hello,
is the <> operator a feature only of native plan 9?
It doesn't seem to work for me in p9p...
Is the right solution then, instead of
program <> file
write
program < file > file_tmp
mv file_tmp file
?
Thanks
Ruda
2009/9/17 yy :
> if you want to preserve white-space, you better forget about fields
> and work with indexes on the string, match is your friend:
>
> % echo '1 3 4 8' | awk '{match($0, /[ \t]*[^ \t]+[
> \t]+/);a=RLENGTH+1;match(substr($0, a), /[ \t]/);print
> substr($0,0,a-1) "hell"
2009/9/17 erik quanstrom :
> i don't know why this can't be done with sed. if the
> task is to just change the second field without messing
> with whitespace, why doesn't this work
As I said in my second post, neither the field (the problem with sed)
nor the string to be used as a replacement (no
2009/9/17 Noah Evans :
> Since you're doing character processing rather than record processing,
> isn't C your best tool for the job here?
>
> This is what I whipped out YMMV:
>
> #include
> #include
> #include
>
> char *str;
> int ntok;
>
> #define WHITESPACE(c) ((c) == ' ' || (c) ==
2009/9/17 erik quanstrom :
> fn buildre {
> re = 's:^'
> for(i in `{seq 1 $1})
> re = $re ^ '([^ ][ ]*)'
> re = $re ^ '([^ ]):\' ^ $1 ^ $2 ^ :
> }
>
> - erik
>
Yes, I now see yours and Roger Peppe's idea to build a regexps and then use it.
T
2009/9/17 roger peppe :
> just change the regexp as required.
Ok. I decided (although just for game now) to play a little with the
idea of building the regexp.
Starting from Eric's post I slowly progressed to sth. quite similar to
your post :) :
fn buildre {
re = 's:^([ ]*)('
f
2009/9/17 erik quanstrom :
> i don't think you need an extra () for the leading
> white space. just tack it on in with the leading expression.
see below
> the hoc is unnecessary. just start with 2.
true :)
> fn buildre {
> re = 's:^([ ]*'
> for(i in `{seq 2 $1})
>
forget about my previous post regarding the leading space,
I am tired, it was wrong...
Anyway the question about () is still hot...
R
2009/9/17 Rudolf Sykora :
> 2009/9/17 erik quanstrom :
>> i don't think you need an extra () for the leading
>> white space. just tack it on
Hello,
is there anyone who could say a few words about their experience with
the lout formatting system and how well it compares to the troff/TeX
suite.
Also, does anybody use it in plan9?
Thanks,
Ruda
I may not fully understand the problem, but wouldn't it be just fine
if fmt output anything it can already output?
I.e., filled lines are output, on encountering '\n' the (generally
unfilled) line is output...
(Or what is the reason that fmt waits for EOF?)
R
Hello,
sorry for an off-topic thing. But I guess somebody here could help me...
I have a problem with bison grammer
Having
%token ATOM
%left '+'
%left REP
and a grammar:
block:ATOM
| REP block
| block '+' block
;
is ok. Having another grammer:
block:ATOM
|
... anywhere where I wrote 'grammer' I meant 'grammar' ...
2009/10/21 Russ Cox :
> To know how to decide, yacc needs a precedence
> for the thing being shifted and the rule. You've
> given precedences for each rule (REP block has
> REP's precedence, and block block has +'s thanks
> to the override) but not to ATOM.
>
> Concretely, when yacc sees REP block
2009/10/21 Skip Tavakkolian <9...@9netics.com>:
> i think this is what you want. untested:
>
> pair: REP ATOM
> | REP '[' block ']'
>
> block: pair
> | block pair
Thanks.
This would require there always be a REP before [ block ], which I
don't want (cf. ordinary expression (1+2) ).
> So the %nonassoc says to the parser that
> (REP block) ATOM
> is the right decision as opposed to
> REP (block ATOM)
> right?
... probably not exactly. the highest priority of ATOM is probably
also important, as I think of it now...
Ruda
> Is this what you are trying to do?
>
> $ cat b.y <<'EOF'
> %token ATOM REP
> %%
> blocks: block | block blocks;
> block: ATOM | REP block | '[' blocks ']';
> %%
> EOF
> $ bison b.y
> $
My head is starting to spin, but I think that, possibly, yes.
Seems to be the simplest way how to do it. :)
Any
I must say, many thanks!
Ruda
2009/10/21 Russ Cox :
>> Ok, thanks, this seems to have solved it.
>> So the %nonassoc says to the parser that
>> (REP block) ATOM
>> is the right decision as opposed to
>> REP (block ATOM)
>> right?
>
> %token declares its arguments as tokens but
> does not give them
Hello
why
1+-2
is ok for the 'hoc' command, while both
1--2
1-+2
produce a syntax error?
(If spaces are added as in
1- -2
1- +2,
hoc is fine with the former but still rejects the latter...)
Thanks
Ruda
PS.: While 'bc' is not any better in this, 'maxima' gets it wright.
(Both in linux.)
2009/10/30 Jorden Mauro :
> Look under the production for expr in /sys/src/cmd/hoc/hoc.y
>
> Looks like the unary plus problem would be a one-line fix. The -- with no
> space
> may be harder to fix.
Thanks, I will.
Nonetheless, the problem, as I am thinking about it now, could
possibly (also) be
2009/10/30 Martin Neubauer :
> * Rudolf Sykora (rudolf.syk...@gmail.com) wrote:
>> (a-- b wouldn't make sense) it probably can't (can it?) be parsed
>> simply with yacc...
> I don't see why it would be impossible. Just introduce a binary --
> operator (cf
2009/10/30 erik quanstrom :
>> Python handles correctly e.g. 2-7, 2+-+-7, 2+++-7,...
>> C-compiler that I use in my linux, gcc, is ok for a+-b and a-+b, also
>> for a+-+-b, but not for a++b or a--b or any alike.
>
> you're confusing tokens and productions. the c tokenizer
> has the following r
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