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38 commits

Author SHA1 Message Date
Max Brunsfeld
c495076adb Record in parse table which actions can hide splits 
Suppose a parse state S has multiple actions for a terminal lookahead symbol A.
Then during incremental parsing, while in state S, the parser should not
reuse a non-terminal lookahead B where FIRST(B) contains A, because reusing B
might prematurely discard one of the possible actions that a batch parser
would have attempted in state S, upon seeing A as a lookahead.
 2015-12-17 13:11:56 -08:00
Max Brunsfeld
d5ce268074 Fix handling of changing precedence within lexical rules. 
A precedence annotation wrapping a sequence of characters now only affects how
tightly those characters bind to *each other*, not how tightly they bind to the
preceding character.

This bug surfaced because a generated lexer was failing to recognize a '\n' character
as a token, instead treating it as ubiquitous whitespace. It made this error
because, even though anonymous ubiquitous tokens have the lowest precedence, the
character immediately *after* the '\n' was part of a normal token, which had
*normal* precedence (0). Advancing into that following token was incorrectly
prioritized above accepting the line-break token.
 2015-11-08 13:36:15 -08:00
Max Brunsfeld
c8be143f65 🔥 get_metadata function 2015-10-30 16:22:25 -07:00
Max Brunsfeld
433f060a5b Fix stream overloads for inspecting PrecedenceRange and ParseItem 2015-10-30 10:45:46 -07:00
Max Brunsfeld
1983bcfb60 Fix conflation of finished items w/ different precedence 2015-10-18 12:51:32 -07:00
Max Brunsfeld
aaafdd4797 Add stream operator for PrecedenceRange in spec helpers 2015-10-06 10:50:09 -07:00
Max Brunsfeld
ef2acf9496 Make ParseItemSet & LexItemSet classes 2015-10-05 15:13:43 -07:00
Max Brunsfeld
c4ef228397 Share common lookahead sets between parse item sets 2015-10-04 21:33:54 -07:00
Max Brunsfeld
ebc52f109d Merge branch 'flatten-rules-into-productions' 
This branch had diverged considerably, so merging it required changing a lot
of code.

Conflicts:
	project.gyp
	spec/compiler/build_tables/action_takes_precedence_spec.cc
	spec/compiler/build_tables/build_conflict_spec.cc
	spec/compiler/build_tables/build_parse_table_spec.cc
	spec/compiler/build_tables/first_symbols_spec.cc
	spec/compiler/build_tables/item_set_closure_spec.cc
	spec/compiler/build_tables/item_set_transitions_spec.cc
	spec/compiler/build_tables/rule_can_be_blank_spec.cc
	spec/compiler/helpers/containers.h
	spec/compiler/prepare_grammar/expand_repeats_spec.cc
	spec/compiler/prepare_grammar/extract_tokens_spec.cc
	src/compiler/build_tables/action_takes_precedence.h
	src/compiler/build_tables/build_parse_table.cc
	src/compiler/build_tables/first_symbols.cc
	src/compiler/build_tables/first_symbols.h
	src/compiler/build_tables/item_set_closure.cc
	src/compiler/build_tables/item_set_transitions.cc
	src/compiler/build_tables/parse_item.cc
	src/compiler/build_tables/parse_item.h
	src/compiler/build_tables/rule_can_be_blank.cc
	src/compiler/build_tables/rule_can_be_blank.h
	src/compiler/prepare_grammar/expand_repeats.cc
	src/compiler/prepare_grammar/extract_tokens.cc
	src/compiler/prepare_grammar/extract_tokens.h
	src/compiler/prepare_grammar/prepare_grammar.cc
	src/compiler/rules/built_in_symbols.cc
	src/compiler/rules/built_in_symbols.h
	src/compiler/syntax_grammar.cc
	src/compiler/syntax_grammar.h
 2015-10-02 23:46:39 -07:00
Max Brunsfeld
e6f3239bef Move stream operator definitions to spec helpers 
This is one less thing for users to worry about when compiling and linking
the library itself
 2015-09-10 10:12:11 -07:00
Max Brunsfeld
557c8c7f28 Remove unnecessary test helpers 2015-09-06 17:07:04 -07:00
Max Brunsfeld
f9316933ad Refactor logic for marking '_'-prefixed rules as hidden 2015-09-06 16:53:13 -07:00
Max Brunsfeld
5982b77c97 In compiler, distinguish between anonymous tokens and hidden rules 2015-09-05 22:28:55 -07:00
Max Brunsfeld
bd77ab1ac9 Move public rule functions out of rule namespace 
This way, there's only one public namespace: tree_sitter
 2015-09-03 17:49:20 -07:00
Max Brunsfeld
766e3bab2c Use 2-space continuation indent consistently in specs 2015-07-27 18:18:58 -07:00
Max Brunsfeld
52daffb3f3 Separate syntax rules into flat lists of symbols 
This way, every ParseItem can be associated with a particular production
for its non-terminal. That lets us keep track of which productions are
involved in shift/reduce conflicts.
 2015-02-16 22:11:03 -08:00
Max Brunsfeld
1ff7cedf40 Unify ubiquitous tokens and lexical separators in API 2014-09-07 22:16:45 -07:00
Max Brunsfeld
9338249075 Remove implicit CharacterRange constructors 
Also fix misc smaller lint errors
 2014-08-23 14:52:44 -07:00
Max Brunsfeld
0bb5663f0f Refactor - represent char sets in terms of inclusions and exclusions 2014-08-23 14:25:45 -07:00
Max Brunsfeld
6f374fddff Tweak format for pretty printing some classes 2014-08-23 13:52:00 -07:00
Max Brunsfeld
b155994491 Fix indentation in specs 2014-08-07 08:11:21 -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
d5674d33c4 Add test helper stream method for pairs 2014-06-24 21:54:38 -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
649f200831 Expand regex/string rules as part of grammar preparation 
This makes it possible to report errors in regex parsing
 2014-05-19 20:54:59 -07:00
Max Brunsfeld
4700e33746 Introduce 'ubiquitous_tokens' concept, for parsing comments and such 2014-05-06 12:54:04 -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
93df5579b4 Trim whitespace 2014-04-25 22:17:23 -07:00
Max Brunsfeld
68d44fd565 Intern symbols during grammar preparation 2014-04-22 23:38:26 -07:00
Max Brunsfeld
13c4e6e648 Tweak format for example grammars 2014-03-28 13:51:32 -07:00
Max Brunsfeld
3f770ff3c3 Remove unused consumed_symbols vector from parse items 2014-03-26 21:04:11 -07:00
Max Brunsfeld
fd226a6bfe Clean up test that compiles example grammars 2014-03-24 07:26:06 -07:00
Max Brunsfeld
06cd18b483 Put example grammars in tree_sitter::examples ns 2014-03-24 07:19:31 -07:00
Max Brunsfeld
dbaacee497 Fix integer type warnings in json parser spec 2014-03-12 08:18:20 -07:00
Max Brunsfeld
a411e43484 Rename source files: .cpp -> .cc 2014-03-09 22:13:08 -07:00
Max Brunsfeld
eb30429700 Make paths explicit in #includes 2014-03-09 21:43:14 -07:00
Max Brunsfeld
39aa0ccc91 Add script to trim whitespace 2014-03-09 19:49:35 -07:00
Max Brunsfeld
142671c177 Separate spec helpers files for compiler and runtime specs 2014-03-08 15:26:27 -08:00