Commit graph

24 commits

Author SHA1 Message Date
Max Brunsfeld
e9dad529f5 Make descriptions more consistent in compiler specs 2014-09-09 13:01:18 -07:00
Max Brunsfeld
1ff7cedf40 Unify ubiquitous tokens and lexical separators in API 2014-09-07 22:16:45 -07:00
Max Brunsfeld
545e575508 Revert "Remove the separator characters construct"
This reverts commit 5cd07648fd.

The separators construct is useful as an optimization. It turns out that
constructing a node for every chunk of whitespace in a document causes a
significant performance regression.

Conflicts:
	src/compiler/build_tables/build_lex_table.cc
	src/compiler/grammar.cc
	src/runtime/parser.c
2014-09-02 08:03:51 -07:00
Max Brunsfeld
5cd07648fd Remove the separator characters construct
Now, grammars can handle whitespace by making it another ubiquitous
token, like comments.

For now, this has the side effect of whitespace being included in the
tree that precedes it. This was already an issue for other ubiquitous
tokens though, so it needs to be fixed anyway.
2014-09-01 20:19:43 -07:00
Max Brunsfeld
b155994491 Fix indentation in specs 2014-08-07 08:11:21 -07:00
Max Brunsfeld
7dfaba2954 Fix conflict manager spec 2014-07-13 18:10:32 -07:00
Max Brunsfeld
b217cd38fb Handle built-in symbols correctly in conflict manager 2014-07-13 17:59:57 -07:00
Max Brunsfeld
77df7fe511 In lexer, always prefer the longest match
Only use rules' precedence to decide between two tokens
that match the same string
2014-07-03 08:57:35 -07:00
Max Brunsfeld
83a1b9439e Fix handling of ubiquitous tokens used in grammar rules 2014-07-01 20:47:35 -07:00
Max Brunsfeld
7df35f9b8d Make separate types for syntax and lexical grammars
This way, the separator characters can be added as a field to
lexical grammars only
2014-06-25 13:27:16 -07:00
Max Brunsfeld
81880e000e Tweak header include paths in tests 2014-06-23 18:50:03 -07:00
Max Brunsfeld
e93e254518 In lexer, prefer tokens to skipped separator characters
This was causing newlines in go and javascript to be parsed as
meaningless separator characters instead of statement terminators
2014-05-30 13:29:54 -07:00
Max Brunsfeld
d91bc718a0 Add basic test for parse table builder 2014-05-04 23:28:53 -07:00
Max Brunsfeld
1d314d71c2 Separate functions for building parse and lex tables
Now, instead of adding states to the lex table as they are needed
by the parse states, we iterate over the parse states after the fact
and set up their corresponding lex states. This has the nice side
effect that the lex states are in a more readable order.
2014-05-04 22:07:52 -07:00
Max Brunsfeld
3a50171249 Expose all grammar compilation errors 2014-05-01 23:28:40 -07:00
Max Brunsfeld
93620b3ed1 Add keyword helper for making higher-priority string tokens 2014-05-01 13:25:20 -07:00
Max Brunsfeld
25eda9d889 ISymbol -> Symbol
Interned symbols are now the main type of symbol in use
2014-04-28 20:43:27 -07:00
Max Brunsfeld
68d44fd565 Intern symbols during grammar preparation 2014-04-22 23:38:26 -07:00
Max Brunsfeld
33d781f492 Refactor bookkeeping of token starts in lexical rules
- Move lex items and parse items into their own files
2014-04-17 13:33:34 -07:00
Max Brunsfeld
a437d39773 Add rule precedence construct
Still need to add some way of expressing left and right
associativity
2014-04-15 08:40:46 -07:00
Max Brunsfeld
67243c7e2f cpplint 2014-04-14 08:38:44 -07:00
Max Brunsfeld
e1e0cc6278 Make sure conflicts returned by compile are unique 2014-04-10 08:38:14 -07:00
Max Brunsfeld
f71d7bae16 Record parse conflicts when compiling grammars
Need to remove duplicate conflicts
2014-04-08 18:47:42 -07:00
Max Brunsfeld
3982b73ed6 Start work on recording parse action conflicts 2014-04-08 08:19:55 -07:00