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From "Rahul Akolkar (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JEXL-71) Parsing errors?
Date Wed, 05 Aug 2009 19:28:14 GMT

    [ https://issues.apache.org/jira/browse/JEXL-71?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12739689#action_12739689
] 

Rahul Akolkar commented on JEXL-71:
-----------------------------------

Agreed that [ ]  is crowded syntax-wise and I didn't like the existing map literal syntax
either. I think the JSON/ECMA-like syntax. Note the map syntax hasn't been released so can
be changed freely at this point. I'm in favor of the change conceptually (haven't looked at
the actual patch, and unlikely I'll get a chance over the next few days either).


> Parsing errors?
> ---------------
>
>                 Key: JEXL-71
>                 URL: https://issues.apache.org/jira/browse/JEXL-71
>             Project: Commons JEXL
>          Issue Type: Bug
>            Reporter: Sebb
>             Fix For: 2.0
>
>         Attachments: JEXL-71.patch
>
>
> While testing with a basic command-line utility, I got the following odd behaviours:
> Note: input is denoted by >.
> ============
> > c.e
> 04-Aug-2009 23:25:46 org.apache.commons.jexl.Interpreter visit
> WARNING: org.apache.commons.jexl.scripting.Main.main@51![0,3]: 'c.e;' undefined variable
e.e
> Return value: null
> > c
> Return value: {2=3, 4=5}
> > e
> Return value: 2
> The error message looks wrong - why is e.e mentioned? Surely it should be c.e?
> ===========
> > a=[1,2]
> Encountered " "," ", "" at line 1, column 5.
> Was expecting one of:
> ... etc.
> Same for
> > A=['b','c']
> However, I would expect this to work, as this is the syntax for an array as shown on
the website.
> How does one create an array?
> =====
> > D=['a'=>'b']
> Return value: {a=b}
> > D['a']
> Return value: b
> This as expected. However, numbers behave rather oddly:
> > E=[1=>2]
> Return value: {1=2}
> > E[1]
> Return value: null
> > E['1']
> Return value: null
> There does not appear to be a way to access the value.
> Whereas, when using a string:
> F=['1'=>2]
> Return value: {1=2}
> F['1']
> Return value: 2
> F[1]
> Return value: 2
> In this case, both the string and the bare number are usable as the key.
> ====
> I can create test cases for these, but I'd like to confirm that these are bugs first

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