Re: gEDA-user: [RFC 1/6] Non-Turing-complete configuration files.

[Steven Michalske <smichalske@xxxxxxxxx>]

KISS says

key = value \n
next key = its value \n

anything can parse this simple format

an unknown key is a warning,


On Jan 16, 2009, at 2:44 PM, Peter TB Brett wrote:

>
> Currently, the gEDA configuration files are executed by a Scheme
> interpreter. This has a number of flaws:
>
> 1. An error in a configuration file will cause it not to be fully
>   interpreted. This can potentially leave gEDA applications in an
>   unusable state or even cause it not to start at all. Furthermore,
>   this can be confusing to a new user, who might not be familiar with
>   Scheme or the quirks of gEDA configuration and thus more at risk of
>   making mistakes configuring gEDA.
>
> 2. Per-project configuration files may legitimately be required. For
>   instance, they may be used to customize libraries of symbols or
>   hierarchical schematics. However, they currently pose a security  
> risk
>   in that downloading and opening a set of schematics from the  
> Internet
>   can easily result in arbitrary code being executed.
>
> My proposal is to use a Scheme-like syntax for the configuration  
> files,
> but to parse rather than execute them. Naturally, it would be  
> necessary
> to design the system carefully to ensure that all configuration
> parameters can be specified in the reduced syntax.
>
>                                     Peter
>
> -- 
> Peter Brett
>
> Electronic Systems Engineer
> Integral Informatics Ltd
>
>
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> geda-user@xxxxxxxxxxxxxx
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