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From "Olga Natkovich (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-267) Don't substitute parameters inside comments
Date Mon, 16 Jun 2008 18:33:45 GMT

    [ https://issues.apache.org/jira/browse/PIG-267?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12605368#action_12605368
] 

Olga Natkovich commented on PIG-267:
------------------------------------

Hi Pi, yes the comment their is a bit misleading. Alan is right though that we need to skip
all comments supported by Pig.

> Don't substitute parameters inside comments
> -------------------------------------------
>
>                 Key: PIG-267
>                 URL: https://issues.apache.org/jira/browse/PIG-267
>             Project: Pig
>          Issue Type: Bug
>            Reporter: Amir Youssefi
>            Priority: Trivial
>         Attachments: Pig267_ParamFix.patch
>
>
> A script with $x in comments fails because Pig thinks it's an undefined parameter. One
approach to address it is to skip substitution for comments. 
> java.lang.RuntimeException: Undefined parameter : x
>         at org.apache.pig.tools.parameters.PreprocessorContext.substitute(PreprocessorContext.java:221)
>         at org.apache.pig.tools.parameters.ParameterSubstitutionPreprocessor.parsePigFile(ParameterSubstitutionPreprocessor.java:106)
>         at org.apache.pig.tools.parameters.ParameterSubstitutionPreprocessor.genSubstitutedFile(ParameterSubstitutionPreprocessor.java:86)
>         at org.apache.pig.Main.runParamPreprocessor(Main.java:382)
>         at org.apache.pig.Main.main(Main.java:284)

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