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https://issues.apache.org/jira/browse/PIG-377?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alan Gates reassigned PIG-377:
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Assignee: Xuefu Zhang
> Grunt parser doesn't handle escape codes correctly
> --------------------------------------------------
>
> Key: PIG-377
> URL: https://issues.apache.org/jira/browse/PIG-377
> Project: Pig
> Issue Type: Bug
> Components: grunt
> Environment: Pig Trunk 01-Aug-2008
> Hadoop 17.1
> Linux Ubuntu
> Reporter: Rafael Turk
> Assignee: Xuefu Zhang
> Priority: Minor
> Fix For: 0.9.0
>
>
> Grunt parser doesn't handle escape codes correctly such as \s \n \\..
> Exemple, using:
> raw_filtered = FILTER raw BY ngram matches '^[a-zA-Z0-9\s]$';
> OR
> raw_filtered = FILTER raw BY ngram matches "^[a-zA-Z0-9\s]$";
> I get the following error:
> org.apache.pig.impl.logicalLayer.parser.TokenMgrError: Lexical error at line
> 1, column 57. Encountered: "s" (115), after : "\'^[a-zA-Z0-9\\"
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParserTokenManager.getNextToken(QueryParserTokenManager.java:1623)
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParser.jj_consume_token(QueryParser.java:4744)
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParser.PUnaryCond(QueryParser.java:1117)
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParser.PAndCond(QueryParser.java:1055)
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParser.POrCond(QueryParser.java:1005)
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParser.PCond(QueryParser.java:973)
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParser.FilterClause(QueryParser.java:941)
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParser.BaseExpr(QueryParser.java:686)
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParser.Expr(QueryParser.java:512)
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParser.Parse(QueryParser.java:362)
> at
> org.apache.pig.impl.logicalLayer.LogicalPlanBuilder.parse(LogicalPlanBuilder.java:47)
> at org.apache.pig.PigServer.registerQuery(PigServer.java:275)
> at
> org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:475)
> at
> org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:233)
> at
> org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:81)
> at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:60)
> at org.apache.pig.Main.main(Main.java:294)
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