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https://issues.apache.org/jira/browse/PIG-1908?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13019925#comment-13019925
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Xuefu Zhang commented on PIG-1908:
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This appears to be a new feature, and would be a good candidate for next
release.
> display the contents of line and indicate the position of the erroneous token
> for syntax errors
> -----------------------------------------------------------------------------------------------
>
> Key: PIG-1908
> URL: https://issues.apache.org/jira/browse/PIG-1908
> Project: Pig
> Issue Type: Improvement
> Affects Versions: 0.9.0
> Reporter: Thejas M Nair
> Assignee: Xuefu Zhang
> Fix For: 0.9.0
>
>
> With latest version of the parser, the line number and position of the
> erroneous token are displayed.
> For example -
> {code}
> > cat err.pig
> l = load 'x' ;
> f1 = foreach l generate $1, $2, $3, $4 + $3, $5 $3;
> dump f1;
> > pig -x local err.pig
> 2011-03-15 11:06:06,563 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
> 1000: Error during parsing. line 2:48 mismatched input ['$3'] expecting
> SEMI_COLON
> {code}
> It will be easier for to identify the reason for syntax error if the message
> also prints the line contents and indicates the position. This is specially
> useful if the script and/or line is long.
> For example, the error message could be -
> {code}
> 2011-03-15 11:06:06,563 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
> 1000: Error during parsing. line 2:48 mismatched input ['$3'] expecting
> SEMI_COLON
> f1 = foreach l generate $1, $2, $3, $4 + $3, $5 $3;
> ^
> {code}
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