On Thu, Mar 14, 2013 at 7:24 PM, Mohammad Al Houssami (Alumni) < mh...@mail.aub.edu> wrote:
> Oh okay I didn’t know that. Thanks for the information.**** > > I tried that but nothing happened.**** > > Any ideas why this might be the case? > Maybe your download is incomplete? I did exactly what is in the PBE2 chapter, and it took a rather long time to complete the downloads... > **** > > ** ** > > *From:* pharo-users-boun...@lists.gforge.inria.fr [mailto: > pharo-users-boun...@lists.gforge.inria.fr] *On Behalf Of *Alain Busser > *Sent:* Thursday, March 14, 2013 3:07 PM > > *To:* A friendly place where any question about pharo is welcome > *Subject:* Re: [Pharo-users] PetitParser Help**** > > ** ** > > No, not the *system* browser, PetitParser has its own browser: > > In a workspace, just write > > PPBrowser new > > then "DoIt", and a PetitParser browser opens: It is a very beautiful tool, > and powerful at that! Especially there is a graphical version which shows > your grammar...**** > > On Thu, Mar 14, 2013 at 5:53 PM, Mohammad Al Houssami (Alumni) < > mh...@mail.aub.edu> wrote:**** > > I am not sure what you mean Alain. Using the system browser to read what ? > **** > > **** > > *From:* pharo-users-boun...@lists.gforge.inria.fr [mailto: > pharo-users-boun...@lists.gforge.inria.fr] *On Behalf Of *Alain Busser > *Sent:* Thursday, March 14, 2013 5:42 AM**** > > > *To:* A friendly place where any question about pharo is welcome > *Subject:* Re: [Pharo-users] PetitParser Help**** > > **** > > Personnally, I found the browser very useful, so read on until you come to > the marvels of > > PPBrowser new > > Your life will never be the same after that... **** > > On Thu, Mar 14, 2013 at 3:20 AM, Mohammad Al Houssami (Alumni) < > mh...@mail.aub.edu> wrote:**** > > Thank You Benjamin,**** > > There was no way I would figure that out on my own… its weird to represent > it this way but its clear now.(Probably because im new to Smalltalk though) > > Thanks again J**** > > Mohammad**** > > **** > > *From:* pharo-users-boun...@lists.gforge.inria.fr [mailto: > pharo-users-boun...@lists.gforge.inria.fr] *On Behalf Of *Benjamin > *Sent:* Wednesday, March 13, 2013 8:58 PM > *To:* A friendly place where any question about pharo is welcome > *Subject:* Re: [Pharo-users] PetitParser Help**** > > **** > > This code**** > > ExpressionGrammar>>term**** > > ^ add / prod**** > > ExpressionGrammar>>add**** > > ^ prod , $+ asParser trim , term**** > > ExpressionGrammar>>prod**** > > ^ mul / prim**** > > ExpressionGrammar>>mul**** > > ^ prim , $***** > > asParser trim , prod**** > > ExpressionGrammar>>prim**** > > ^ parens / number**** > > ExpressionGrammar>>parens**** > > ^ $( asParser trim , term , $) asParser trim**** > > **** > > is not a code to evaluate in a workspace.**** > > It the representation we use to express the implementation of a method**** > > By example**** > > **** > > ExpressionGrammar>>term**** > > ^ add / prod**** > > **** > > means that on class ExpressionGrammar, you need to add a method named term > with source code**** > > ^ add / prod**** > > **** > > **** > > So, you can either use a method browser to do it, or programatically do it > by doing:**** > > **** > > ExpressionGrammar compile: 'term**** > > ^ add / prod'**** > > **** > > But this method is a bit ad hoc.**** > > **** > > :)**** > > Hope it helps ;)**** > > > Ben ** ** > > **** > > On Mar 13, 2013, at 8:56 PM, Mohammad Al Houssami (Alumni) < > mh...@mail.aub.edu> wrote:**** > > **** > > Hello Everyone**** > > **** > > I was going over PetitParser part on the pharo by example book. > http://pharobooks.gforge.inria.fr/PharoByExampleTwo-Eng/latest/PetitParser.pdf > **** > > **** > > It was all going good until page 11.**** > > Script 1.19is for creating the class so this was fine. You get an > ExpressionGrammar class with all the needed variables, but what about > script 1.20?**** > > **** > > Where does this script go? I understand what the code does. It is > describing a grammar for mathematical expressions by defining what > everything is and the rules of the grammar. I am not sure where shall I put > this script to run it. In earlier examples I was using the workspace.**** > > **** > > Any help is much appreciated.**** > > Mohammad**** > > **** > > **** > ------------------------------ > > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2013.0.2904 / Virus Database: 2641/6169 - Release Date: 03/13/13* > *** > > **** > ------------------------------ > > No virus found in this message. > Checked by AVG - www.avg.com**** > > Version: 2013.0.2904 / Virus Database: 2641/6172 - Release Date: 03/13/13* > *** > > ** ** > ------------------------------ > > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2013.0.2904 / Virus Database: 2641/6172 - Release Date: 03/13/13* > *** >
