| --- Log opened Tue Aug 07 00:00:30 2007 |
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| 14:57 | <@ToxicFrog> | Huh. |
| 14:57 | <@ToxicFrog> | The feature that I tossed together a tiny C library for, and which my oo library relies on, is in fact present in Lua but undocumented. |
| 14:59 | <@Reiver> | Handy. |
| 14:59 | <@Reiver> | Taking yours out then?~ |
| 14:59 | <@ToxicFrog> | Yep. |
| 15:05 | <@ToxicFrog> | The Lua implementation is in fact better~ |
| 15:10 | | You're now known as TheWatcher |
| 15:42 | | You're now known as TheWatcher[afk] |
| 16:16 | | * ToxicFrog writes an xargsoid in six lines |
| 16:18 | <@ToxicFrog> | I love bash. |
| 16:22 | <@Reiver> | ? |
| 16:23 | | Reiver is now known as ReivZzz |
| 16:32 | <@ToxicFrog> | Are you ?ing at the six lines, or the xargsoid? |
| 16:40 | <@ToxicFrog> | Ok, this is r0xx0r |
| 16:40 | <@ToxicFrog> | alias lines='{ while read line; do set -- $line;' |
| 16:40 | <@ToxicFrog> | alias senil='done; }' |
| 16:41 | <@ToxicFrog> | And then you can write something like: |
| 16:41 | <@ToxicFrog> | find | lines |
| 16:41 | <@ToxicFrog> | > fgrep 'errno.h' "$line" |
| 16:41 | <@ToxicFrog> | > senil |
| 16:48 | <@jerith> | Are you going to document the Lua feature? |
| 16:48 | <@ToxicFrog> | It's already been documented on the wiki. |
| 16:49 | <@ToxicFrog> | And it's pretty simple: newproxy(true|false|proxy) creates and returns a 0-length fuserdata; if true, gives it an empty metatable; if false, gives it no metatable; if proxy, gives it the same metatable as the proxy that was passed in. |
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| 21:22 | | * ToxicFrog , via discussions in #lua, makes his struct library at least two powers more awesome |
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| 21:25 | <@Vornicus-Latens> | woot |
| 21:25 | <@ToxicFrog> | Specifically: (...) for repetition, {...} for tables with optionally named members |
| 21:25 | <@jerith> | YAY! My deadtree Erlang book arrived! Squee! |
| 21:25 | <@ToxicFrog> | So you can write: "( u3 b1 )*4" to get eight results out |
| 21:25 | <@Vornicus-Latens> | yey deadtree erlang book |
| 21:26 | <@ToxicFrog> | Or: "{ width:u4 height:u4 heightpow:u2 cspace:b1 }" to get a table with named members out |
| 21:26 | <@ToxicFrog> | And these are nestable. |
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| 21:28 | <@Vornicus-Latens> | okay that rules. |
| 21:28 | <@Vornicus-Latens> | what's b again? |
| 21:28 | <@ToxicFrog> | boolean. |
| 21:29 | <@Vornicus-Latens> | ah, yes |
| 21:30 | <@ToxicFrog> | Also, the actual processor has been redesigned - it generates a queue of functions from the format string and then calls them in sequence. |
| 21:30 | <@Vornicus-Latens> | cool |
| 21:30 | <@ToxicFrog> | Which simplifies matters = '{' becomes "push table", and '}' becomes "pop table and assign" |
| 21:34 | <@ToxicFrog> | '(' is slightly wackier because it's pushing and popping things on the code stack rather than the data stack, but not much. |
| 21:35 | | You're now known as TheWatcher[T-2] |
| 21:38 | <@Vornicus-Latens> | fun fun. |
| 21:38 | | You're now known as TheWatcher[zZzZ] |
| 21:42 | | * ToxicFrog fiddles with his lexer |
| 21:44 | <@ToxicFrog> | '(' ')' '{' '}' /([-+@abcdfimsuxz])(%d*)/ /%*(%d)/ /^[=<>]/ are the tokens I need to understand, I think |
| 21:45 | <@Vornicus-Latens> | heh |
| 21:47 | <@ToxicFrog> | Of those, '(' ')' /%*(%d)/ execute at generation time - the first pushes a new queue onto the code stack, the second pops the top queue from the code stack and appends it to the queue under it, and the last duplicates the last item on the top code queue that many times |
| 21:47 | <@ToxicFrog> | '{' inserts a 'push table onto data stack' function, '}' pops the table and appends it to the new top |
| 21:48 | <@ToxicFrog> | And /([-+@abcdfimsuxz])(%d*)/ inserts an actual read call. |
| 21:48 | <@ToxicFrog> | ...oh, wait, it needs to handle name: too |
| 21:48 | <@ToxicFrog> | /%w+%:/ |
| 21:48 | <@Vornicus-Latens> | With luck the name is easy to read. |
| 21:49 | <@ToxicFrog> | I make it a new token. Pushes a name onto the data stack. The append function looks at the top of the stack, and if it sees a name rather than a table, pops the name too and does top[name] = value rather than top[#top] = value |
| 21:50 | <@ToxicFrog> | Alternately, I set it up so that it always pops name and value, and fields without names simply generate a name that's the next free index in the queue. |
| 21:50 | <@ToxicFrog> | ...no, easier to do it the first way. |
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| 22:25 | <@Vornicus> | Arg! Can't think! |
| 22:25 | | * jerith injects caffeine into Vorn's brain. |
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| 23:16 | | * ChalcyAFK cookies Vorn |
| 23:21 | | * Vornicus gets caffeined, nroms cookie |
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| --- Log closed Wed Aug 08 00:00:36 2007 |