6013c4c97d
Added modeNames to gen'd lexers
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9878]
2012-01-21 15:10:46 -08:00
dc82edad02
Summary: we can have lexer commands like -> skip now.
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moved model.actions package to chunk
type(foo) didn't match.
ATNBuilder.g now tracks the outer alternative number and calls new factory commands on the lexer commands.
Removed unnecessary resolveWithPredicate field from ATNConfig
Added lexerActionIndex field to ATNConfig since we need to track whether we passed an action in an alternative will rule in the lexer.
Renamed ruleIndex in DFAState and added the lexer action index so that we can execute lexer actions from the DFA.
added functions to the grammar tree visitor for the lexer commands.
Added templates for the lexer commands.
Augmented the lexer ATN factory so that it constructs plain old actions from the lexer commands it finds. That way, the code generator doesn't know any different and generates an action.
Augmented the lexer ATN simulator so that it fires a proper action index now. previously it only used the rule index, which of course doesn't work when you have more than one action in a rule.
rm'd dup code from OutputModelController
altered the epsilon edge removal optimization so that it could not remove actions in lexer rules.
Added list of valid lexer commands in Rule.
[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9877]
2012-01-21 15:01:05 -08:00
093a4f951b
leave start/stop char index alone in CommonTokenFactory; refers to original text.
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9867]
2012-01-14 11:18:23 -08:00
5bd780c235
in tree views, spaces/newlines were blanks. I converted to \n and middle dot
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for space.
[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9857]
2012-01-11 17:25:44 -08:00
848c6e4313
This change is a major restructuring of how left recursive rules are transformed. Previously I simply rewrote the grammar and ANTLR was none the wiser. However, it quickly became apparent that ANTLR needed to do many different things for recursive rules so I had to insert transformation later in the pipeline. Specifically, I needed it after Rule object creation. I made a special LeftRecursiveRule object that track information collected during transformation so that I could use it later. I made major changes to the left recursion templates as well as the little code snippets in Java.stg. I created a new template called LeftRecursiveRuleFunction an accompanying model object that handles the special case, even though there is some duplication. the biggest difference in the grammar is the introduction of => ID notation on any outermost alternative. This information is not added to the tree, instead the ALT node is annotated with the ID. Rule.getAltLabels() now looks also in the LeftRecursiveRuleAltInfo objects. I have moved to the left recursion transformation to its own object and have moved some objects into the analysis package. Further, I have split out the Rule object creation into its own RuleCollector. I renamed discoverAlt in the grammar tree visitor to be discoverOuterAlt an added discoverAlt so we can get information about individual alts even inside subrules. Listeners always get an event for the generic rule context, which is used if there is no specific label for an alternative. Added a list of iteration operations for LL(*) subrules. Split buildRuleFunction into buildLeftRecursiveRuleFunction and one for normal rule function creation. I have to insert lots of extra code to manage the contexts, but of course it's all done using the templates. As long as those templates are correct, this code generation mechanism will work. I removed the st field from the parser rule context. I injected the left recursion transformation inside the SemanticPipeline. Visitor dispatch methods are always added to the generated context structures. Fixed some unit tests. About 24 fail.
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9854]
2012-01-11 11:00:05 -08:00
742a08862f
Merging dev changes to main
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9853]
2012-01-09 10:26:23 -08:00
4ae23f4a64
* 1+2*3 now gives new parse tree: (e (e 1) + (e (e 2) * (e 3))) See CHANGES.txt now too
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9833]
2012-01-05 12:27:14 -08:00
cab41e41e3
had non-ascii char
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9812]
2012-01-04 09:05:31 -08:00
963ccd2700
added comment
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9797]
2012-01-03 12:46:51 -08:00
224a4bc9e1
changed formatting
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9796]
2012-01-03 12:46:39 -08:00
8099cec3bd
Added ctx to visitTerminal in parse tree listener. That should be useful information. made commensurate change in the parse tree walker to make sure I have a proper context to send to the visitTerminal method. renamed a few fields of parser/lexer to have _ in front to avoid name collisions with user actions. change the name of the listener method so that they're more explicit using the terms Error and Parser to identify what kind of listener we are adding or removing. Added a default TraceListener to Parser so that we can call setTrace(true) to have it start dumping out information as a first step in the debugging process. there are now multiple parse tree listeners possible because I made a list. we may want to pass in multiple actions to the parser.
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9795]
2012-01-03 12:46:18 -08:00
5c328c7e3f
Bug: didn't stop at end of stream during consume()
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9794]
2012-01-03 12:40:42 -08:00
5d60e85617
rm trace ATN state stuff. Will think about when we do debugging.
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9792]
2012-01-03 11:07:49 -08:00
c716a87544
move method down in file
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9791]
2012-01-03 11:05:40 -08:00
5c3c8d6e7a
Added TokenFactory, CommonTokenFactory. Update the parser in the lexer with methods to set the factory. Alter the default error strategy and the lexer to use the factory. The parser's set token factory method updates the token source, usually the lexer, and the error handling strategy. I had to add the set token factory method to token source as well to make all of this work.
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9789]
2012-01-03 10:58:01 -08:00
3aeeb2b277
rename BaseREcognizer as Parser
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9781]
2012-01-02 18:36:59 -08:00
1b04195a2f
removed all template / AST rewrite stuff; massive change; added -encoding tool option
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9780]
2012-01-02 18:13:16 -08:00
8846b98ee7
fix compile error
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9765]
2011-12-29 17:05:34 -08:00
a923ad8765
Major update to v4. I backed out a change I made on Christmas then mistakenly prevented any lexer DFA creation. Per http://www.antlr.org/wiki/display/~admin/2011/12/29/Flaw+in+ANTLR+v3+LL%28*%29+analysis+algorithm I fixed a major flaw in ANTLR's notion of context. To do that, I needed to create a new LoopEndState, with all of its fanout to the serialization and parser ATN construction. got a very good start on ParserATNPathFinder, which uses basic recursion to find all possible paths and return a tree with the possibilities. I left it in the condition where he would sometimes loop forever; it needs to track sets of configurations in the busy set; it using states at the moment. added a new signal from the interpreter: reportAttemptingFullContext. I fixed a bug where configuration sets derived from a configuration that had reachesIntoOuterContext>0 were not being considered as dipping into the outer context. The ambiguity checker needed to switch so that a check for exact matches not suffixes when doing full context. It's faster at the very least for full context. added some more support routines to DFA. Added TraceTree in support of the new ParserATNPathFinder.
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9764]
2011-12-29 17:04:40 -08:00
3b51bb478d
rm unneeded field
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9761]
2011-12-27 15:52:47 -08:00
d01bde9125
added new reportAttemptingFullContext to strategy
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9760]
2011-12-27 15:25:01 -08:00
bb960e3c37
improved data to report insuff. preds. also, it was detecting it improperly
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9758]
2011-12-27 14:11:41 -08:00
638969bed9
add '...' to diagnostics input
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9757]
2011-12-27 13:37:47 -08:00
c1e199d77f
added -tokens flag
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9756]
2011-12-26 18:10:29 -08:00
bf8473e0fd
add cmt
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9755]
2011-12-26 17:57:00 -08:00
ce9638e59c
was still creating dfa with sempreds
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9752]
2011-12-26 17:07:45 -08:00
c1923a107e
-tree => -print option
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9748]
2011-12-26 14:05:58 -08:00
db655f8f2c
add -gui option to view in gui window
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9747]
2011-12-26 13:06:05 -08:00
5c50e5f049
Wasn't using Udo's lib correctly
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9746]
2011-12-26 13:05:46 -08:00
c6bde7e1e8
-ps arg wrong
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9745]
2011-12-26 11:13:46 -08:00
adb91a9bde
rm print
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9744]
2011-12-26 11:10:30 -08:00
494f519b05
add java org.antlr.v4.runtime.misc.TestRig GrammarName startRuleName [-tree | -ps file.ps] [input-filename]
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9743]
2011-12-26 11:03:51 -08:00
6daa66f83f
no more resolved bit in config. use ATNConfigSet all over. final clean up of ATN sim.
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9741]
2011-12-25 12:01:24 -08:00
79d1c40427
Integrate CL9648 to main (getAncestors returns Collections.emptyList() instead of null)
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9649]
2011-12-17 11:42:26 -08:00
c59cf36f88
Integrate CL9646 to main (fix forward seek)
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9647]
2011-12-17 09:51:18 -08:00
6b673a3b2e
track stats properly
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9643]
2011-12-16 16:00:11 -08:00
ebd1fbb63d
within 2 or 3 unit test of where I was before I got it the ATN simulator
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9642]
2011-12-16 15:07:28 -08:00
3d133e9417
broke out fullctx tests, some fixes.
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9636]
2011-12-16 09:43:29 -08:00
1e8548297e
mv comment over and make sure that the tree parsers use the new ATN engine
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9635]
2011-12-15 16:14:49 -08:00
5ad1505fdb
almost got new ATN engine working; separated .* nongreedy tests, reorg args on reporting methods
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9627]
2011-12-15 11:03:41 -08:00
fa3483a7fc
Merge CL9619 to main (fix CommonTokenStream.seek)
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9620]
2011-12-15 07:27:52 -08:00
92279bd6db
almost got prediction working
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9600]
2011-12-13 18:10:04 -08:00
8d73f53775
check in start of new ATN sim engine; rm traversedPred in DFAState.
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9598]
2011-12-13 14:38:30 -08:00
8f7fb98e16
added big comments
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9565]
2011-12-12 16:33:10 -08:00
b9afdf6e07
rename var; add missing return
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9564]
2011-12-11 14:45:25 -08:00
3fb7466a80
another big reorg and fixed unit test. lots more sharing and splitting into methods; same 21/807 tests fail; java works.
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9563]
2011-12-11 14:34:32 -08:00
8615fc26da
rm dead code
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9562]
2011-12-11 13:03:34 -08:00
18ff004d83
playing; nop
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9560]
2011-12-11 12:29:27 -08:00
d372d761d5
interim refactoring. much smaller execATN; removed prevAccept fields. useless.
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9559]
2011-12-11 12:09:29 -08:00
c3630843d2
add convenience method
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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9558]
2011-12-11 11:23:42 -08:00
parrt
sharwell