i am writing a compiler for a small language using byacc/j and jflex. i have no problem in finding first error in a given input file. the problem is i cant find more errors. first i used to use yacc and lex and i used special symbol 'error' token at the end of some grammar rules which was built in yacc and i could use 'yyerrok' to simply continue parsing and finding more errors but , in byacc/j i cant find something like that and yyerrok does not work and byacc/j does not recognize that. any suggestions to find more than one error in byacc/j ? or is there ' error ' and 'yyerrok' in byacc/j ?
error recovery in byacc/j and jflex using error token like in yacc
219 Views Asked by am ir At
1
There are 1 best solutions below
Related Questions in YACC
- non- terminal symbol and symbol rules explain and especially is the expr reserved?
- Jison parser: Retrieve n number of text after a specific token
- Using lex to tokenize without failing
- What are the Bison/yacc grammars for these
- Trying to find Shift/Reduce conflict in Grammar
- menhir - associativity rules for reducing sequences of expressions
- Shift/reduce conflits on ocamlyacc
- flex 2.5.35 gives error when ctrl-M used in lex file
- Convert HTML table into plain text using Lex and Yacc
- Lex/Yacc: "line 1: syntax error, unexpected $end, expecting FUNCTION" lex compile error
- How to make a specific rule in Yacc to reduce first before the other rule?
- Lex Yacc parser compiling get few errors tried searching solution cant find
- shift/reduce conflict in simple C grammar
- Error: "expected identifier or '(' before '%' token" (Csimple parser in yacc)
- segmentation fault (core dumped) in Lex/Bison- related to yyparse()
Related Questions in JFLEX
- Java CUP and JFlex Interaction
- JFlex: How can I let yytext continue during matching
- Trouble setting up jFlex
- Misbehaving JFlex rules - wrong rule matched
- Shift Reduce Conflict (CUP)
- JFLEX installation error
- BNF Rule Syntax Highlighting for Custom Language
- RSyntaxTextArea Custom Language JFlex
- Intellij language plugin: syntax highlighting when editing using JFlex lexer
- recognize fractional numbers in JFlex 1.4.3
- When detecting the tokens with JFlex, the characters in a comment shouldn´t generate tokens but do
- JFlex Lexer. Multiline strings
- How to include counting of method declaration, constants, functions calls in parser?
- LookAhead not working in JFlex
- error recovery in byacc/j and jflex using error token like in yacc
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
The only thing that
yyerrokdoes is reset the count of tokens since the last error notification. Yacc parsers suppress error messages in the first three tokens after an error recovery, to prevent cascading error messages.Using
yyerrok-- or settingyyerrflagto 0 -- indicates that error recovery was successful and that error messages should now be produced. It does not have any other effect: with or withoutyyerrok, parsing will continue.yyerrokis a C macro, and Java doesn't have macros. So apparently it was dropped from the Java interface. Butyyerrflagexists as a parser class member and you should be able to just set it to zero in a parser action.