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Author SHA1 Message Date
Nathan Braswell
4c2fd967f0 Perens now work fully! The RegEx part of Kraken should now be fully legitimate. The only problem is not gracefully letting the user know about faulty input, but that goes for all of Kraken. 2013-07-07 02:13:05 -04:00
Nathan Braswell
502929963c Added alternation and fixed a bug with the repetition operators exposed by the addition of the alternation. (for some reason the repetition operators used a loop making endless circles) 2013-07-04 15:10:32 -04:00
Nathan Braswell
84566c4ff6 Extended the Regular Expression class to now support * and ? as well as +. Next up, perens and alternation 2013-07-03 23:40:36 -04:00
Nathan Braswell
cc6ff21986 Fixed some bugs, including modifing StringReader to treat quoted strings as whole words. 2013-07-02 13:14:40 -04:00
Nathan Braswell
85da0bf646 Lexer/RegExs now work on a very basic level. Regular expressions have not been fully implemented, but the structure is there. It creates trivial regexs that only accept a specified sequence, no actual regular expression power. 2013-07-02 01:47:42 -04:00
Nathan Braswell
94a7739bd9 Added structure for Regular Expressions, saving work as a backup because of software upgrade. 2013-07-01 22:45:33 -04:00
Nathan Braswell
c2520ec2c4 NodeTree now also has a link to the Symbol it represents. 2013-06-27 23:45:38 -04:00
Nathan Braswell
6a2977d12a Redid lookahead in a much much saner way. Now should be a legitimate parser somewhere between LALR(1) and LR(1). 2013-06-26 14:27:28 -04:00
Nathan Braswell
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. 2013-06-23 05:54:58 -04:00
Nathan Braswell
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.) 2013-06-23 05:06:38 -04:00
Nathan Braswell
17dd186373 Fixed infinite loop bug- Was attempting to see if a non-closured state and a closured state were equal, almost never were. 2013-06-21 14:46:15 -04:00
Nathan Braswell
20b059ca45 Transfer computer 2013-06-21 14:16:16 -04:00
Nathan Braswell
66b88cb5d7 Added followSets(Symbol*) function to compute follow sets. 2013-06-13 23:43:12 -04:00
Nathan Braswell
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*. 2013-06-13 19:11:31 -04:00
Nathan Braswell
0c651a5d9e Added EOF symbol, making the getTable() saner for ACCEPT and lookahead support in ParseRule 2013-06-13 14:25:10 -04:00
Nathan Braswell
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. 2013-06-04 19:50:16 -04:00
Nathan Braswell
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. 2013-05-30 19:49:19 -04:00
Nathan Braswell
dd7b255520 Parser works! Parses LR(0) grammers. Fixed the never ACCEPT bug from last night. 2013-05-30 02:12:34 -04:00
Nathan Braswell
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\! 2013-05-29 20:43:35 -04:00
Nathan Braswell
315dc55409 Modifed set creation to use a State object. Set creation works 2013-05-26 22:12:47 -04:00
Nathan Braswell
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. 2013-05-24 13:24:33 -04:00
Nathan Braswell
1aec4ee6a7 Added first go at creating stateSets. This is a commit to save work, as it still segfaults.: 2013-05-24 00:00:41 -04:00
Nathan Braswell
e4f83cbb67 Added main loop of parser. 2013-05-23 01:35:54 -04:00
Nathan Braswell
14fc410e00 Added clone method and pointer location to toString in ParseRule 2013-05-20 23:26:15 -04:00
Nathan Braswell
200cff6ab4 Separate the toString and toDOT methods. 2013-05-20 22:59:57 -04:00
Nathan Braswell
d2698cf203 Implemented grammer loading 2013-05-20 19:34:15 -04:00
Nathan Braswell
46d59ac595 First work on Kraken! Basic node tree system re-written from WTS-Language, can output .gv files of the node tree. 2013-05-11 16:13:46 -04:00
Nathan Braswell
ced3f3ea37 Initial commit 2013-05-10 12:08:44 -07:00