From: Nathan Zook <blogger@...>
Date: 2013-10-09T19:31:43-07:00
Subject: [ruby-core:57799] Re: [ruby-trunk - Feature #7854] New method	Symbol[string]

Is this feature request rejected?  I thought it would be in 2.1


On 10/01/2013 06:15 PM, Student (Nathan Zook) wrote:
> Issue #7854 has been updated by Student (Nathan Zook).
>
>
> This was set to "next minor" a LONG time ago, but I don't see it in 2.1.  ???  This would aid security in a couple of ways.
>
> ----------------------------------------
> Feature #7854: New method Symbol[string]
> https://bugs.ruby-lang.org/issues/7854#change-42188
>
> Author: Student (Nathan Zook)
> Status: Open
> Priority: Normal
> Assignee: matz (Yukihiro Matsumoto)
> Category: core
> Target version: next minor
>
>
> I propose a new class method [] on Symbol.  If a symbol s already exists such that s.to_s == string, then s is returned.  If not, nil is returned.
>
> The inspiration for this method is a question I was asked, and the answer I was given:  "Why would you want to turn a tainted string into a symbol?"  "I don't--I want to access an existing symbol with tainted data".  Symbol[] accesses the symbol table like hash[] accesses the elements of a hash.
>
> I believe that this completely addresses the problems behind tickets #7791 and #7839.  I believe that it is a more intuitive solution than my proposal #7795, and I believe that this will also be useful for YAML.safe_load and similar initiatives.
>
>
>