Re: [Boost-users] Spirit with UI Tools

Subject: Re: [Boost-users] Spirit with UI Tools
From: Larry Evans (cppljevans_at_[hidden])
Date: 2014-11-04 08:34:24

On 11/04/2014 06:01 AM, Philipp Kraus wrote:
> Hello
> 
> Am 03.11.2014 um 15:45 schrieb Larry Evans <cppljevans_at_[hidden]>:
> 
>> Why couldn't you use Spirit to describe spirit grammar?  IOW,
>> a grammar has a syntax:
>>
>>  grammar = +production;
>>  productions = +(terminal|non_terminal|action);
>>  non_termainal = non_term_1|non_term_2|...|non_term_Nnon;
>>  terminal = term_1|term_2|...|term_Nterm;
>>  action = act_1|act_2|...|act_Nact;
> 
> I know this, but I would like to shown the „plain text grammar“ in a structure like (E)BNF
> for documentation. 
> 
That's why I thought parsing the grammar from a "plain text file" was
what you needed.  I confess I didn't understand the UI part of your
subject line.  Googling I found:

http://www.antlr3.org/works/

Is that more like what you want?  In particular:

http://www.antlr3.org/works/screenshots/editor.jpg
> 
>> Couldn't this grammar be described using spirit, and that spirit
>> "source" grammar could be used to *read* your the grammar you actually
>> want from a file and create the actual "target" grammar you want?
> 
> The grammar shouldn’t read from a file at runtime, it should be build-in
> 
>> After all, I don't see what Antlr would buy you because, IIUC, you'll
>> havde to do essentially the same thing, except using Antlr you have to
>> learn to systems, Antlr as well as spirit.
> 
> AntLR is a nice tool to create a visual representation of the grammar and
> it can be also helpful during the developing of the grammar. In my case
> I would like to create a logical language and don’t want to create a
> „hard encoding spirit code“, so I would like to design the grammar in a
> UI tool and create from the visual representation the Spirit code and
> paste it in my class file which create parser & lexer.
> 
> UI Grammer Modelling -> Spirit Code Generator -> Spirit Code -> Lexer / Parser
> 
> Hope this is a bit clearer. Did you know a UI modeling tool or anything helpful for this
> developing process?
> 
The one mentioned above, http://www.antlr3.org/works/, looks like a UI
modeling tool, but I've never used it and don't know if it can be used
to generate a qi grammar.  I kinda doubt it since I guess it's used
to create a java implementation of the parser, not a c++, qi based one
:(
> Thanks
> 
> Phil
> 
-regards,
Larry