miloignis/kraken
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  • 6a2977d12a Redid lookahead in a much much saner way. Now should be a legitimate parser somewhere between LALR(1) and LR(1). Nathan Braswell 2013-06-26 14:27:28 -04:00
  • ee9b8b8c39 Modified the NodeTree with a unique id used in construction of the DOT representation, so that two different nodes with the same name don't end up as the same on the graph. Nathan Braswell 2013-06-23 05:54:58 -04:00
  • a307e1f143 Changed followset to work on states, fixed many bugs. Kraken now should have a fairly legitimate LALR(1) parser. (null productions have not yet been added.) Nathan Braswell 2013-06-23 05:06:38 -04:00
  • 17dd186373 Fixed infinite loop bug- Was attempting to see if a non-closured state and a closured state were equal, almost never were. Nathan Braswell 2013-06-21 14:46:15 -04:00
  • 20b059ca45 Transfer computer Nathan Braswell 2013-06-21 14:16:16 -04:00
  • 66b88cb5d7 Added followSets(Symbol*) function to compute follow sets. Nathan Braswell 2013-06-13 23:43:12 -04:00
  • da6e5f3de9 Added a firstSet(Symbol*) function that takes in a Symbol* and returns a vector of Symbol* s that are the first set of the first Symbol*. Nathan Braswell 2013-06-13 19:11:31 -04:00
  • 0c651a5d9e Added EOF symbol, making the getTable() saner for ACCEPT and lookahead support in ParseRule Nathan Braswell 2013-06-13 14:25:10 -04:00
  • 949dbc532a Fixed lots of bugs, added much more sane and efficient ParseAction table instead of recalculating every time. Fixed lots of bugs and inefficencies. Some temporary hacks in the table, mostly having to do with not having an EOF Symbol yet. Nathan Braswell 2013-06-04 19:50:16 -04:00
  • 0c4af245bf Cleaned up some debug messages, parseInput(string) now returns a parse tree of NodeTree*. This is done by having each non-terminal Symbol have it's own subtree and calling a method to combine subtrees and terminals on each reduce. The output is now the DOT version of the parse tree. Nathan Braswell 2013-05-30 19:49:19 -04:00
  • dd7b255520 Parser works! Parses LR(0) grammers. Fixed the never ACCEPT bug from last night. Nathan Braswell 2013-05-30 02:12:34 -04:00
  • 69713ffe1a Actually parses LR(0) grammers and sentences\! Only two problems is very inefficint gotoTable() and actionTable(), and it REJECTS the sentence after completing the Goal->Sentence(*) production. However, need to go to bed now. Does practially work though\! Yay\! Nathan Braswell 2013-05-29 20:43:35 -04:00
  • 315dc55409 Modifed set creation to use a State object. Set creation works Nathan Braswell 2013-05-26 22:12:47 -04:00
  • 858daa30ee Changed from iterators, which become invalidated if vector is changed, to classic indexing. Now runs! However, the results are incorrect. Closure seems to work through. Nathan Braswell 2013-05-24 13:24:33 -04:00
  • 1aec4ee6a7 Added first go at creating stateSets. This is a commit to save work, as it still segfaults.: Nathan Braswell 2013-05-24 00:00:41 -04:00
  • e4f83cbb67 Added main loop of parser. Nathan Braswell 2013-05-23 01:35:54 -04:00
  • 14fc410e00 Added clone method and pointer location to toString in ParseRule Nathan Braswell 2013-05-20 23:26:15 -04:00
  • 200cff6ab4 Separate the toString and toDOT methods. Nathan Braswell 2013-05-20 22:59:57 -04:00
  • d2698cf203 Implemented grammer loading Nathan Braswell 2013-05-20 19:34:15 -04:00
  • 46d59ac595 First work on Kraken! Basic node tree system re-written from WTS-Language, can output .gv files of the node tree. Nathan Braswell 2013-05-11 16:13:46 -04:00
  • ced3f3ea37 Initial commit Nathan Braswell 2013-05-10 12:08:44 -07:00