[PIG-3418] ; in constant breaks parsing

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Duplicate
• Fix Version/s: 0.11
• Component/s: parser
• Assignee: Unassigned
• Reporter: Sergey
• Created: 12/Aug/13 08:34
• Updated: 14/Aug/13 21:31
• Resolved: 14/Aug/13 21:31

Description

Hi.
1. If you use ; in pig script it breaks parsing
2. It's impossible to pass ; as a value for parameter. Pig starts grunt and doesn't start script.

Here is example:

A = LOAD 'myFile';
B = FOREACH A GENERATE ( host == ';' ? 1 : 0); --line #5

Here is stacktrace:

Pig Stack Trace
---------------
ERROR 1200: <file test.pig, line 5, column 0>  mismatched character '<EOF>' expecting '''

org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1000: Error during parsing. <file test.pig, line 5, column 0>  mismatched character '<EOF>' expecting '''
	at org.apache.pig.PigServer$Graph.parseQuery(PigServer.java:1608)
	at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1547)
	at org.apache.pig.PigServer.registerQuery(PigServer.java:518)
	at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:991)
	at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:412)
	at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.j
ava:194)
	at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:170)
	at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:84)
	at org.apache.pig.Main.run(Main.java:604)
	at org.apache.pig.Main.main(Main.java:157)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:616)
	at org.apache.hadoop.util.RunJar.main(RunJar.java:208)
Caused by: Failed to parse: <file test.pig, line 5, column 0>  mismatched character '<EOF>' expecting '''
	at org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:237)
	at org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:177)
	at org.apache.pig.PigServer$Graph.parseQuery(PigServer.java:1600)
	... 14 more                

This also would not run.

pig -p param=; some_pig_script.pig

grunt would be launched.

Issue Links

• duplicates: PIG-2507 Semicolon in parameters for UDF results in parsing error