| --- Log opened Sat Nov 22 00:00:22 2014 |
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| 08:19 | <@Julius> | TheWatcher: You here? |
| 08:20 | <@Julius> | I want to detect, in a Perl string, whether someone said "stripe" but not "stripes". What I've got currently is "($arg =~ /stripe /i)" but that doesn't quite cut it. |
| 08:22 | <@Julius> | Case is not important. |
| 08:24 | <@Julius> | Also, what would you suggest for a time-out mechanism? I'd want to have it so that a function cannot be triggered again until a certain time has passed (but not refreshed by triggers during the timeout). |
| 08:32 | <@froztbyte> | what about /stripe(^s)/ ? |
| 08:32 | <@froztbyte> | mayhaps with a ? or something thrown in |
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| 08:39 | <@Julius> | That detects neither. |
| 08:40 | <@froztbyte> | well, some kind of character grouping application |
| 08:40 | <@froztbyte> | I'm way too friggin tired to regex right now :) |
| 08:40 | <@froztbyte> | but you basically want to add a condition of "match anything but s" |
| 08:41 | <@froztbyte> | so you'll get "stripeasdasdqwe", "stripe?", etc |
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| 09:14 | <&jerith> | Julius: /stripe(?!s)/ |
| 09:14 | <&jerith> | http://www.regular-expressions.info/lookaround.html |
| 09:17 | <@Julius> | That doesn't detect either either. |
| 09:20 | <&jerith> | It works for me. |
| 09:20 | <@Julius> | Wait, I might have messed up. |
| 09:20 | <@Julius> | OK, it DOES work. |
| 09:20 | <@Julius> | Thanks! |
| 09:21 | <&jerith> | \o/ |
| 09:22 | <@Julius> | Now to figure out how to do a timeout. |
| 09:22 | <&jerith> | Negative lookahead assertions are great. |
| 09:22 | <&jerith> | (Except beware performance.) |
| 09:57 | <&McMartin> | Oh god |
| 10:00 | <&jerith> | McMartin: Do you mean Azathoth or Shub Niggurath? |
| 10:06 | <&McMartin> | Azathoth. Shubby governs the use of fork bombs as intentional parallelization techniques. |
| 10:06 | <&McMartin> | And expanded her domain to parallelization and synchronization in general. |
| 10:10 | <@Julius> | jerith: Found a problem. It detects "stripes stripes stripes" as matching. I don't want it to do that. |
| 10:13 | <&jerith> | [12:13|jerith@minbar] ~% perl -e 'print (("stripes stripes stripes" =~ /stripe(?!s)/) ? "t\n" : "f\n")' |
| 10:13 | <&jerith> | f |
| 10:14 | <&jerith> | [12:13|jerith@minbar] ~% perl -e 'print (("stripes stripe stripes" =~ /stripe(?!s)/) ? "t\n" : "f\n")' |
| 10:14 | <&jerith> | t |
| 10:14 | <@Julius> | That's strange. |
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| 10:37 | | * TheWatcher readsup |
| 10:39 | <@Julius> | I actually solved the timeout by refering to time(). |
| 10:39 | <@TheWatcher> | M'kay |
| 10:41 | <@TheWatcher> | I note that using /stripe(?!s)/ will have the possible side-effect that it'll allow "pinstripesuit" |
| 10:41 | <@TheWatcher> | You might need \b to check word boundaries |
| 10:42 | <@Julius> | Like how? Before and after? |
| 10:43 | <@Julius> | Will that detect punctuation as 'word end'? |
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| 10:44 | <&jerith> | TheWatcher: It doesn't match "pinstripesuit" for me. |
| 10:44 | <@TheWatcher> | Oh, yeah, because of th es in suit |
| 10:44 | <@TheWatcher> | (nb: I've been awake for 10 minutes, and have yet to have any tea whatsoever, so) |
| 10:45 | <@TheWatcher> | But it could match other embedded 'stripe's anyway. |
| 10:45 | <@TheWatcher> | And yeah, "A word boundary (\b ) is a spot between two characters that has a \w on one side of it and a \W on the other side of it (in either order)," |
| 10:46 | <@TheWatcher> | So \bstripe(?!s)\b |
| 10:46 | <@TheWatcher> | Now, tea |
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| 11:17 | <@Tarinaky> | Hmm, I thought zip(vector,scalar) would result in the scalar being repeated for each element of the vector |
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| 11:17 | <@Tarinaky> | Maybe that was Haskell. |
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| 16:36 | <@Tarinaky> | So. Anyone have opinions on Python's namedtuple vs regular tuples? |
| 16:52 | <~Vornicus> | I generally start by hacking along with regular tuples, and then will switch up to a namedtuple as it gets hairier |
| 16:52 | <~Vornicus> | -- this, if the names would make sense. |
| 16:54 | <~Vornicus> | Remember this: http://thecodelesscode.com/case/19 |
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| 16:57 | <@celticminstrel> | I'm trying to figure out how to decide what level a monster should be based on its stats and abilities... |
| 17:10 | <&jerith> | Tarinaky: I've never really found namedtuple to be useful. |
| 17:10 | <&jerith> | I either use a tuple, a dict, or a custom object. |
| 17:10 | <@Tarinaky> | It seems more awkward to use than just packing and unpacking a regular tuple. |
| 17:11 | <@Tarinaky> | And I'm not sure there's any gains being made here. |
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| 17:47 | <@Azash> | Named tuples look like they might be useful for ORMs |
| 17:48 | <~Vornicus> | Usually when I've got a tuple I'm using it specifically for its immutability and comparability. Dictionaries don't do that, and objects I need to write more code to make that happen. |
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| 18:15 | | * Derakon readsup. |
| 18:15 | <&Derakon> | Named tuples come in handy for concisely defining the equivalent of a C struct -- a datastructure with no logic attached to it. |
| 18:16 | <&Derakon> | THis doesn't happen all that often, but it can be nice. |
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| --- Log closed Sun Nov 23 00:00:38 2014 |