[fpc-pascal] Re: Parsing parameters inside an interpreter

Lukasz Sokol el.es.cr at gmail.com
Mon May 14 11:39:39 CEST 2012

On 13/05/2012 11:20, luciano de souza wrote:
> Hello all,
> I trying to build a very small interpreter. I can type commands
> like:
> $ add "Luciano de Souza"
> luchyanus at gmail.com
> Somewhere in my code, I can have something like:
> procedure parse(commandline: string; var params: array of string);
> In this case, the commandline has the format: "add %s %s". So I would
> obtain:
> parse('add "Luciano de Souza"
> luchyanus at gmail.com', params);
> After this command, the parameter would have the following values:
> params[0] := 'add'; params[1] := 'Luciano de Souza'; params[2] :=
> 'luchyanus at gmail.com';
> My question is: there is a way to do it easily using a standard
> class of Freepascal?
> Luciano 

In my 'poor-mans interpreter' I use and pass around TStringList's 
quite a lot; although some special treatment of the string
is required, to preserve spaces within parameter strings.


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