StackOverflow2013

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plurals

PO
primarykey
Id
10995461
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
2
CommunityOwnedDate
CreationDate
2012-06-12T11:10:05.930
FavoriteCount
0
LastActivityDate
2013-10-14T06:46:43.063
LastEditDate
2017-05-23T10:27:26.407
LastEditorUserId
-1
OwnerUserId
50476
ParentId
10993847
PostTypeId
2
Score
3
ViewCount
0
LastEditorDisplayName
text
Body
I may sound a bit blunt, but I don't believe you read that many articles (at least, not the right ones) because you don't seem to know the difference between lexer- and parser rules. Be sure you do understand it: <a href="https://stackoverflow.com/questions/4297770/practical-difference-between-parser-rules-and-lexer-rules-in-antlr">Practical difference between parser rules and lexer rules in ANTLR?</a> Also checkout this SO Q&A: <a href="http://web.archive.org/web/20130602122135/https://stackoverflow.com/questions/278480/antlr-tutorials" rel="nofollow noreferrer">ANTLR Tutorials</a> You're using only lexer rules, which is not correct. Although even lexer rules can be recursive (in ANTLR grammars), you really should avoid it. In your case, most of the rules should be parser rules instead: <pre><code>componentRef : IDENT ('[' expression (',' expression)* ']')? ; expression: componentRef ('(' functionArguments ')')? ; functionArguments: expression (',' expression)* ; IDENT: ('a'..'z'|'A'..'Z'|'_') ('a'..'z'|'A'..'Z'|'_'|'0'..'9')*; </code></pre> The grammar above won't recognize the input you've posted, but there are no error anymore. A grammar that recognizes the input you've posted, could look like this (untested!) grammar: <pre><code>parse : expr* EOF ; expr : IDENT (index | call)* ; index : '[' expr_list ']' ; call : '(' expr_list ')' ; expr_list : expr (',' expr)* ; IDENT : ('a'..'z'|'A'..'Z'|'_') ('a'..'z'|'A'..'Z'|'_'|'0'..'9')* ; SPACE : (' ' | '\t' | '\r' | '\n')+ {skip();} ; </code></pre>
Tags
Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POAntlr and left-recursive rules
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 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USCommunity
UserOwnerUserId
1. USBart Kiers
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
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 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
2. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId
1. CODead link re: "ANTLR Tutorials"
 singulars
 PostPostId
 PO
 UserUserId
 USJared Beck
2. CO@Jared, the Q&A was removed: replaced it with a link to a copy at archive.org
 singulars
 PostPostId
 PO
 UserUserId
 USBart Kiers

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