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
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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
b010e1667e
Fix parse action equality method
2014-05-06 12:51:38 -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
6d40dcf881
Add token helper for building token rules
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Now you can specify the structure of tokens using
all of the rule functions, not just `str` and `pattern`
2014-05-01 12:43:29 -07:00
Max Brunsfeld
d685edf015
Backfill test for item set transitions
2014-04-29 08:18:41 -07:00
Max Brunsfeld
0d763d229d
cpplint
2014-04-28 21:46:43 -07:00
Max Brunsfeld
25eda9d889
ISymbol -> Symbol
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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
5313bb5257
Simplify item set closure function
2014-04-23 13:35:21 -07:00
Max Brunsfeld
e8f2b788d4
Reduce allocations when computing rule transitions
2014-04-23 09:01:57 -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
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- 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
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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
Max Brunsfeld
1da9f1fdfd
Store rule metadata as a map, not a single number
...
Need to store more than just boolean values
2014-04-07 08:50:00 -07:00
Max Brunsfeld
5320cad065
Trim trailing whitespace
2014-04-04 13:10:55 -07:00
Max Brunsfeld
32e94081fa
Backfill tests
2014-04-04 08:07:46 -07:00
Max Brunsfeld
1cc7e32e2d
Fix handling of tokens consisting of separator characters
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The parser is no longer hard-coded to skip whitespace. Tokens
such as newlines, whose characters overlap with the separator
characters, can now be correctly recognized.
2014-04-03 19:10:09 -07:00
Max Brunsfeld
85b97c4f87
Fix error in merging character set transitions
2014-04-01 13:33:32 -07:00
Max Brunsfeld
7adb0bf34f
Add golang example grammar
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Also, support '\a' character class shorthand in regexes,
for alphabetical characters
2014-03-29 16:29:34 -07:00
Max Brunsfeld
13c4e6e648
Tweak format for example grammars
2014-03-28 13:51:32 -07:00
Max Brunsfeld
820b6f4020
Fix infinite loops during table generation for left-recursive rules
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Add function calls for arbitrary expressions and dot property access to javascript grammar
2014-03-26 22:43:08 -07:00
Max Brunsfeld
3f770ff3c3
Remove unused consumed_symbols vector from parse items
2014-03-26 21:04:11 -07:00
Max Brunsfeld
aac0786449
Resolve token conflicts by tokens' order in grammar
2014-03-24 19:18:06 -07:00
Max Brunsfeld
48baf056b4
Store grammars' rules in vectors, not maps
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This way, we can keep of the order in which the rules
were given, for resolving reduce/reduce conflicts.
2014-03-24 13:17:38 -07:00
Max Brunsfeld
50a90e456b
Handle * quantifier in regex patterns
2014-03-22 20:08:11 -07:00
maxbrunsfeld
a733d31634
Fix spec wording in follow sets spec
2014-03-12 13:06:02 -07:00
Max Brunsfeld
a411e43484
Rename source files: .cpp -> .cc
2014-03-09 22:13:08 -07:00
Max Brunsfeld
10b1bd0f5c
Fix includes in specs
2014-03-09 22:05:05 -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
Max Brunsfeld
e479773aac
Rename files to avoid duplicate basenames
2014-03-02 15:07:43 -08:00
Max Brunsfeld
df05c75525
Backfill unit tests for follow sets
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Also, add some comment docs for some compiler functions
2014-02-26 00:39:31 -08:00
Max Brunsfeld
e58a6d8ba7
Start work on error recovery
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- In runtime, make parse errors part of the parse tree
- Add error state to lexers in which they can accept any token
2014-02-24 18:42:54 -08:00
Max Brunsfeld
e87380a8b7
Make separate PreparedGrammar subclass of Grammar for internal use
2014-02-19 13:36:38 -08:00
Max Brunsfeld
2c56612650
Get makefile working
2014-02-18 09:07:00 -08:00
Max Brunsfeld
9e2dc14182
Extract public compiler API into its own header file
2014-02-17 12:40:46 -08:00
Max Brunsfeld
bf07522026
Fix bug in FIRST set function
2014-02-13 18:52:17 -08:00
Max Brunsfeld
27f305d556
Put rule_can_be_blank function in its own file
2014-02-11 13:21:45 -08:00
Max Brunsfeld
1962c17f45
Remove transition_map class
2014-02-11 13:15:44 -08:00
Max Brunsfeld
3cb65c9c81
Make the EOF be an auxiliary symbol
...
This way, it couldn’t conflict if a user had a rule called “__END__”
2014-02-10 18:53:01 -08:00
Max Brunsfeld
15c9e2d398
Make ordering of cases deterministic in generated parsers
2014-02-10 18:38:01 -08:00
