Pike-devel

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3 participants
3048 discussions

zero_type();
by Peter Lundqvist (disjunkt) ＠ Pike (-) developers forum 29 Sep '03

29 Sep '03

I've been doing some calculations on genome mutations and I've been finding myself doing a lot of if(zero_type(foo) && zero_type(bar) ... && zero_type(gonk)) ... when checking up on user input that is used to index mappings. So... I was wondering if it is safe to do this? Or perhaps - even make zero_type() do this by default? int zero_types(mixed ... tt) { if(arrayp(tt)) { foreach(tt, mixed t) if(zero_type(t)) return 1; return 0; } return zero_type(tt); } It seems to work alright - but I feel that this might perhaps in some way, I havent thought of, dangerous. > mapping m=(["A":1]); > zero_types(m["A"]); (9) Result: 0 > zero_types(m["R"]); (10) Result: 1 > zero_types(m["R"],m["A"]); (11) Result: 1 > zero_types(m["A"],m["A"]); (12) Result: 0 > zero_types(m["A"],m["R"]); (13) Result: 1 > zero_types(m["R"],m["R"]); (14) Result: 1

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bug: casts to string for long double and long long int are incorrect (7.4.28 rel)
by Alexander Demenshin 27 Sep '03

27 Sep '03

Hi, Still experimenting with long* types, found one problem (so far): --- opcodes.c:367 --- case T_INT: sprintf(buf, "%ld", (long)sp[-1].u.integer); break; case T_FLOAT: sprintf(buf, "%f", (double)sp[-1].u.float_number); break; --- snip --- As you can see, it won't work correctly in case when long long ints or long doubles are in use. Testsuite is also a bit unprepared for this case (several errors, most of them due to this bug). Regards, /Al

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topics for the conference
by Martin Baehr 25 Sep '03

25 Sep '03

hi, for those who are still on the way, to see whats coming up and for the others to see what you are missing (and might be able to catch later as audio or video stream (if the regordings work out) i have set up a list of topics that we plan to cover: http://steam.upb.de/conferences/pike2003/timetable.xml if you have suggestions for other topics you would like to hear, chances are that someone is willing and able to cover that, so don't be afraid to speak out. (email me) greetings, martin. -- Pike Conference 2003 - Sep 25-27 - http://pike.ida.liu.se/conferences/2003/ -- interested in doing pike programming, sTeam/caudium/pike/roxen training, sTeam/caudium/roxen and/or unix system administration anywhere in the world. -- pike programmer working in europe open-steam.org unix system- bahai.or.at iaeste.(tuwien.ac|or).at administrator (stuts|black.linux-m68k).org is.(schon.org|root.at) Martin Bähr http://www.iaeste.or.at/~mbaehr/

1 0

utf8_char_index
by Mirar ＠ Pike developers forum 25 Sep '03

25 Sep '03

The main reason to make these functions go fast is actually to prevent people from using UTF8 internally and the PCRE regexp in UTF8 mode themselves... :)

6 14

Pike conference
by James Tyson 25 Sep '03

25 Sep '03

Hi. So the conference is all except that we're conspicuously missing some swedes. Ofcourse Martin is freaking out, so for the sake of his blood pressure if anyone has a phone number or any information on what their itinrerary is then please let me or martin know. Cheers. -- James Tyson Director, Giant Robot Ltd http://www.giantrobot.co.nz/

2 2

configinfo.txt
by Mirar ＠ Pike developers forum 24 Sep '03

24 Sep '03

Have I a temporary blindness, or did configinfo.txt disappear from the xenofarm files? (Benchmark is nice, though.)

1 0

foo
by Mirar ＠ Pike developers forum 24 Sep '03

24 Sep '03

Nilsson, did you have any good way of inserting Regexp.PCRE? I want to write the glue in lib/modules, but I'm getting fuzzed by the compilation orders (again). Is it supposed to work like this? 1) I moved Regexp (the c+pike glue) to Regexp.Builtin, using MODULE_INIT() location setting 2) I make Regexp.pmod/module.pmod inherit Regexp.Builtin, and then this happens: | > Regexp("["); | Cannot call undefined lfun `(). | > indices(Regexp); | (1) Result: ({ /* 11 elements */ | "`()", ...and the rest that should be there... | "Builtin", | "module", | "___Builtin", | }) | > Regexp["`()"]("hej"); | (2) Result: Regexp.SimpleRegexp(hej) There's nothing magical about the old Regexp module, | SimpleRegexp `()(void|string regexp) { return SimpleRegexp(regexp); } so what's going on? Why does `[] work but not `->?

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utf8_char_index
by Mirar ＠ Pike developers forum 24 Sep '03

24 Sep '03

I can also add my code as a long, big ugly class in Regexp's module.pmod.in, but that also feels wrong. Bah, I'll just add my code to _Regexp_PCRE's module.pmod.in as Nilsson suggested and insert it in Regexp's module.pmod.in.

1 1

utf8_char_index
by Mirar ＠ Pike developers forum 24 Sep '03

24 Sep '03

These are the functions I use now: array(int)|int utf8_byte_index_to_char_number(array(int)|int c,string utf8) { if (arrayp(c)) return map(c,utf8_byte_index_to_char_number,utf8); return c && strlen(utf8_to_string(utf8[..c-1])); } array(int)|int char_number_to_utf8_byte_index(array(int)|int c,string wide) { if (arrayp(c)) return map(c,char_number_to_utf8_byte_index,wide); return c && strlen(string_to_utf8(wide[..c-1])); } ...if someone feels like writing them in C and adding them to String or something it would probably not be horribly bad. :)

2 2

utf8_char_index
by Mirar ＠ Pike developers forum 24 Sep '03

24 Sep '03

I need a hack for utf8 conversion, utf8 string byte offset <-> character number Anyone that knows enough utf8 and feels up to it?

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