The both model you are progressing are not scalable, and error prone. If we make any change to the grammar then we have to also fix that in several places.
Isn't there any other alternatives? Suho On Tue, Jun 30, 2015 at 4:59 AM, Tharindu Munasinghe < tharindu...@cse.mrt.ac.lk> wrote: > Hi Mentors, > > I have been working on the context-aware auto completion feature. There is > a function called getExpectedTokensInCurrentRule() in Antlr4 API which > returns the possible next tokens based on the current rule context. I have > tried to use that function to get the possible tokens, but as I can see > this function will only work with valid input that can be parsed without > errors. While the query is incomplete (while user is typing the query) it > will only generate a generic error without returning any parsing > information. > > I have two alternatives in mind to overcome the issue . > 1. create set of regular expressions to match the last input token and > present a set of predefined suggestion lists. > 2. create token graph similar to following diagram and suggest the > children of the current token > > > > > I would be grateful if you can provide feedback regarding which method to > implement. Any alternative suggestions are highly appreciated. > > > On 15 June 2015 at 09:36, Tharindu Munasinghe <tharindu...@cse.mrt.ac.lk> > wrote: > >> Hi Mentors, >> >> I have almost completed the implementation of syntax and semantic error >> highlighting mechanism. Now the errors are listed in appropriate >> lines while user is writing the query . Number of server calls are reduced >> significantly , but still more optimizations can be done on this. >> >> This week I will be working on the auto completion feature , current >> editor does have all-text auto completion. But I am trying to reduce the >> suggestion list based on the context-awareness. >> >> Can we have a meeting in this week to verify the work I have already done >> and to discuss the proceedings of this project ?. >> >> On 11 June 2015 at 08:08, Tharindu Munasinghe <tharindu...@cse.mrt.ac.lk> >> wrote: >> >>> Hi Suho, >>> >>> >>> *Weekly Progress Update* >>> >>> I have been working on syntax and semantic error highlighting >>> mechanism. Client side syntax checking is almost completed and I managed to >>> integrate new editor with CEP 4.0 .Once there are no syntax errors , the >>> query will be submitted to the server side Siddhi compiler for semantic >>> error checking . >>> >>> Since the syntax errors are checked in client side, only the semantic >>> error messages will be getting from the server . But there was an issue in >>> displaying the error messages since some of the semantic error messages do >>> not contain the line numbers. >>> >>> To overcome the issue , I divided the query into top level parser rules >>> ( define_stream, execution_element, ...) and send the code to the server in >>> a constructive manner . So that the line which raise the error message can >>> be identified. >>> >>> suppose the code is similar to this, >>> >>> 1. define stream foo(a int ,b string); //define_stream : at line >>> 1--> A >>> 2. >>> 3. define stream foo(a int ,b int); //define_stream : at line 3 --->B >>> 4. >>> 5. from foo //execution_element : at line >>> 5----> C >>> 6. select a >>> 7. insert into bar; >>> >>> >>> If the code has no syntax errors then,it will be submitted to server as >>> follows, >>> A , A+B , A+B+C >>> >>> Since this feature can't be demonstrated in github pages. It would >>> be great if we can meet and verify the progress before sending the PR. >>> >>> Thanks >>> >>> On 3 June 2015 at 16:06, Sriskandarajah Suhothayan <s...@wso2.com> >>> wrote: >>> >>>> Thanks for the update, yes keep us posted >>>> >>>> Suho >>>> >>>> On Wed, Jun 3, 2015 at 9:26 AM, Tharindu Munasinghe < >>>> tharindu...@cse.mrt.ac.lk> wrote: >>>> >>>>> Hi Suho >>>>> >>>>> I am working on the client side syntax checker (improving the error >>>>> messages) and integrating the new editor with CEP. As soon as I >>>>> complete them I will review the work with you before sending PRs . >>>>> Sorry for delay in updating the progress. I will update you frequently >>>>> from now onward. >>>>> >>>>> Thanks, >>>>> >>>>> On 2 June 2015 at 21:06, Sriskandarajah Suhothayan <s...@wso2.com> >>>>> wrote: >>>>> > Hi Tharindu >>>>> > >>>>> > Your work looks good, do you have any updates ? >>>>> > >>>>> > Suho >>>>> > >>>>> > On Sun, May 24, 2015 at 9:54 AM, Mohanadarshan Vivekanandalingam >>>>> > <mo...@wso2.com> wrote: >>>>> >> >>>>> >> >>>>> >> >>>>> >> On Wed, May 20, 2015 at 2:27 AM, Tharindu Munasinghe >>>>> >> <tharindu...@cse.mrt.ac.lk> wrote: >>>>> >>> >>>>> >>> Hi Mentors, >>>>> >> >>>>> >> >>>>> >> Hi Tharindu, >>>>> >> >>>>> >>> >>>>> >>> >>>>> >>> I have started the initial implementation of client-side features >>>>> like >>>>> >>> syntax highlighting , code completion and code-snippets. I have >>>>> tried both >>>>> >>> ACE editor as well as Code-mirror libraries but according to my >>>>> observation, >>>>> >>> ACE editor can easily be customized for domain specific languages. >>>>> >>> >>>>> >>> Current implementation [1] is based on ACE library. The progress >>>>> of the >>>>> >>> implementation as follows, >>>>> >>> >>>>> >>> Syntax Highlighting :almost completed >>>>> >>> >>>>> >>> Code completion : >>>>> >>> Currently the keywords,annotations, and locally defined >>>>> >>> identifiers can be suggested.But the suggestion list still need to >>>>> be >>>>> >>> optimized based on the context awareness. >>>>> >>> >>>>> >>> Code snippets: >>>>> >>> Predefined code snippets are supported for now (Eg: >>>>> "defStr": >>>>> >>> define stream , "attr","attrS") . User defined code snippets have >>>>> to be >>>>> >>> handled . >>>>> >>> >>>>> >>> Error checking: >>>>> >>> Client side Siddhi parser (Antlr4 in JS runtime) was >>>>> >>> integrated with Siddhi Editor. It just verify the syntactical >>>>> correctness of >>>>> >>> the query and shows error indicators with error messages on >>>>> relevant lines >>>>> >>> immediately . Currently the error messages are somewhat abstract >>>>> and there >>>>> >>> are issues in triggering the event as well . So there are >>>>> improvements still >>>>> >>> need to be done on this. For now, This feature only focuses on >>>>> the syntax >>>>> >>> that can be evaluated at client-side. For semantic verifications, >>>>> Ajax >>>>> >>> requests need to be sent (if only the client side parser doesn't >>>>> find any >>>>> >>> syntax errors) to the existing server-side Siddhi Compiler (That >>>>> part is yet >>>>> >>> to be done). >>>>> >>> >>>>> >>> >>>>> >>> The source code at [1] only contains the client side features >>>>> listed >>>>> >>> above. This project is maintained just for the ease of testing and >>>>> debugging >>>>> >>> the front end specific features. Once the client-side specific >>>>> features are >>>>> >>> implemented and tested properly , this could be integrated and >>>>> merged with >>>>> >>> carbon-event-processing project. Afterwards I will continue to >>>>> work on back >>>>> >>> end related feature ,and will send PRs based on the improvements . >>>>> >>> >>>>> >> >>>>> >> First of all, sorry for the delay.. I have tried out the editor, it >>>>> is >>>>> >> really cool.. I believe GSOC coding is starting by Tomorrow, great >>>>> to see >>>>> >> that you have started already.. I think, you have done a chat with >>>>> Srinath >>>>> >> and Suho regarding this and planned accordingly.. >>>>> >> >>>>> >> FYI, we have done some improvements for our existing editor as >>>>> well.. >>>>> >> Please check our CEP 4.0.0 alpha pack for more information.. >>>>> >> >>>>> >> Thanks, >>>>> >> Mohan >>>>> >> >>>>> >> >>>>> >>> >>>>> >>> Please find demo page for the Siddhi editor is hosted on [2] . >>>>> Highly >>>>> >>> appreciate your feedbacks and suggestions on this. >>>>> >>> >>>>> >>> [1]: https://github.com/TharinduMunasinge/CEP-Siddhi_Editor/ >>>>> >>> [2]: >>>>> http://tharindumunasinge.github.io/CEP-Siddhi_Editor/ace_editor/ >>>>> >>> >>>>> >>> Thanks! >>>>> >>> >>>>> >>> On 7 May 2015 at 00:22, Tharindu Munasinghe < >>>>> tharindu...@cse.mrt.ac.lk> >>>>> >>> wrote: >>>>> >>>> >>>>> >>>> Thanks Srinath! >>>>> >>>> >>>>> >>>> I had a quick discussion with Suho last week. He gave me the >>>>> initial >>>>> >>>> work flow and priorities of the features listed in the proposal. >>>>> >>>> >>>>> >>>> I am currently testing Antr4,Code-mirror and Ace libraries for the >>>>> >>>> implementation purposes. Built the CEP 4.0 and have been getting >>>>> >>>> familiar with SiddhiQL 3.0. >>>>> >>>> >>>>> >>>> Sure we can meet and discuss further details probably on Next >>>>> Monday. >>>>> >>>> So that I will be able to come up with something thing to demo the >>>>> >>>> progress. Please let me know the time (or else a possible date in >>>>> next >>>>> >>>> week) for the meeting . >>>>> >>>> >>>>> >>>> >>>>> >>>> Thanks, >>>>> >>>> >>>>> >>>> On 5 May 2015 at 09:01, Srinath Perera <srin...@wso2.com> wrote: >>>>> >>>> > Tharindu, congratulations on the proposal! >>>>> >>>> > >>>>> >>>> > Shall we meet and discuss sometime this or the following week? >>>>> >>>> > >>>>> >>>> > On Wed, Apr 29, 2015 at 2:46 PM, Tharindu Munasinghe >>>>> >>>> > <tharindu...@cse.mrt.ac.lk> wrote: >>>>> >>>> >> >>>>> >>>> >> Hi Mentors, >>>>> >>>> >> >>>>> >>>> >> First of all thanks for selecting my proposal on $subject . I >>>>> am >>>>> >>>> >> planing to complete most of the basic implementations before >>>>> the >>>>> >>>> >> official Gsoc starting date (May 25) . Before that I would >>>>> like to >>>>> >>>> >> have a review for the design decisions included in the >>>>> proposal. >>>>> >>>> >> It would be great if you can review them and provide feedbacks >>>>> and >>>>> >>>> >> suggestions . >>>>> >>>> >> >>>>> >>>> >> Thanks, >>>>> >>>> >> >>>>> >>>> >> On 28 March 2015 at 12:09, Tharindu Munasinghe >>>>> >>>> >> <tharindu...@cse.mrt.ac.lk> wrote: >>>>> >>>> >> > Hi all, >>>>> >>>> >> > >>>>> >>>> >> > Attached here is the proposal I submitted for $subject . >>>>> >>>> >> > >>>>> >>>> >> > >>>>> >>>> >> > >>>>> >>>> >> > >>>>> >>>> >> > >>>>> https://docs.google.com/a/cse.mrt.ac.lk/document/d/1Txl5uZbLYIX8slLR8F5kI8U0Se79tBgHxw2dA3hMIhI/edit# >>>>> >>>> >> > >>>>> >>>> >> > On 28 March 2015 at 00:08, Tharindu Munasinghe < >>>>> tharin...@wso2.com> >>>>> >>>> >> > wrote: >>>>> >>>> >> >> >>>>> >>>> >> >> [Adding tharindu...@cse.mrt.ac.lk] >>>>> >>>> >> >> >>>>> >>>> >> >> On Wed, Mar 4, 2015 at 12:41 AM, Tharindu Munasinghe >>>>> >>>> >> >> <tharin...@wso2.com> >>>>> >>>> >> >> wrote: >>>>> >>>> >> >>> >>>>> >>>> >> >>> Hi all, >>>>> >>>> >> >>> Thanks Mohan for the quick response. Sure.. >>>>> according to >>>>> >>>> >> >>> the >>>>> >>>> >> >>> currently available slots I have sent a calendar >>>>> invitation for >>>>> >>>> >> >>> the >>>>> >>>> >> >>> discussion on $subject .Please find the invitation at >>>>> 3.00 PM >>>>> >>>> >> >>> today >>>>> >>>> >> >>> and let >>>>> >>>> >> >>> me know the availability by then. >>>>> >>>> >> >>> >>>>> >>>> >> >>> Thanks, >>>>> >>>> >> >>> >>>>> >>>> >> >>> >>>>> >>>> >> >>> On Tue, Mar 3, 2015 at 10:47 PM, Mohanadarshan >>>>> Vivekanandalingam >>>>> >>>> >> >>> <mo...@wso2.com> wrote: >>>>> >>>> >> >>>> >>>>> >>>> >> >>>> >>>>> >>>> >> >>>> >>>>> >>>> >> >>>> On Tue, Mar 3, 2015 at 5:19 PM, Tharindu Munasinghe >>>>> >>>> >> >>>> <tharin...@wso2.com> >>>>> >>>> >> >>>> wrote: >>>>> >>>> >> >>>>> >>>>> >>>> >> >>>>> Hi, >>>>> >>>> >> >>>>> >>>>> >>>> >> >>>> >>>>> >>>> >> >>>> Hi Tharindu, >>>>> >>>> >> >>>> >>>>> >>>> >> >>>>> >>>>> >>>> >> >>>>> I am Tharindu Munasinghe , an undergraduate from >>>>> Department of >>>>> >>>> >> >>>>> Computer Science and Engineering, University of Moratuwa >>>>> >>>> >> >>>>> .Currently >>>>> >>>> >> >>>>> I am an >>>>> >>>> >> >>>>> intern at WSO2. >>>>> >>>> >> >>>>> >>>>> >>>> >> >>>>> I went through the GSoC proposal list and interested in >>>>> >>>> >> >>>>> proposal [1] >>>>> >>>> >> >>>>> and looking forward to contribute . I am already >>>>> familiar with >>>>> >>>> >> >>>>> WSO2 >>>>> >>>> >> >>>>> CEP and >>>>> >>>> >> >>>>> Siddhi while working on my fast track training project. >>>>> >>>> >> >>>>> >>>>> >>>> >> >>>>> Please let me know if we could have a discussion on >>>>> $subject. >>>>> >>>> >> >>>>> >>>>> >>>> >> >>>> >>>>> >>>> >> >>>> Happy to hear that you like to work on $subject.. Sure, >>>>> we can >>>>> >>>> >> >>>> have >>>>> >>>> >> >>>> discussion. Please check for a convenient time with Suho & >>>>> >>>> >> >>>> Srinath.. >>>>> >>>> >> >>>> >>>>> >>>> >> >>>> Thanks, >>>>> >>>> >> >>>> Mohan >>>>> >>>> >> >>>> >>>>> >>>> >> >>>>> >>>>> >>>> >> >>>>> [1] Siddhi Editor for WSO2 CEP >>>>> >>>> >> >>>>> >>>>> >>>> >> >>>>> -- >>>>> >>>> >> >>>>> Tharindu Munasinghe >>>>> >>>> >> >>>>> Software Engineering Intern >>>>> >>>> >> >>>>> WSO2 Inc.(http://wso2.com) >>>>> >>>> >> >>>>> SRI LANKA >>>>> >>>> >> >>>>> >>>>> >>>> >> >>>>> Mobile: +94 77460887 >>>>> >>>> >> >>>>> E-Mail: tharin...@wso2.com >>>>> >>>> >> >>>>> >>>>> >>>> >> >>>>> _______________________________________________ >>>>> >>>> >> >>>>> Dev mailing list >>>>> >>>> >> >>>>> Dev@wso2.org >>>>> >>>> >> >>>>> http://wso2.org/cgi-bin/mailman/listinfo/dev >>>>> >>>> >> >>>>> >>>>> >>>> >> >>>> >>>>> >>>> >> >>>> >>>>> >>>> >> >>>> >>>>> >>>> >> >>>> -- >>>>> >>>> >> >>>> V. Mohanadarshan >>>>> >>>> >> >>>> Software Engineer, >>>>> >>>> >> >>>> Data Technologies Team, >>>>> >>>> >> >>>> WSO2, Inc. http://wso2.com >>>>> >>>> >> >>>> lean.enterprise.middleware. >>>>> >>>> >> >>>> >>>>> >>>> >> >>>> email: mo...@wso2.com >>>>> >>>> >> >>>> phone:(+94) 771117673 >>>>> >>>> >> >>> >>>>> >>>> >> >>> >>>>> >>>> >> >>> >>>>> >>>> >> >>> >>>>> >>>> >> >>> -- >>>>> >>>> >> >>> Tharindu Munasinghe >>>>> >>>> >> >>> Software Engineering Intern >>>>> >>>> >> >>> WSO2 Inc.(http://wso2.com) >>>>> >>>> >> >>> SRI LANKA >>>>> >>>> >> >>> >>>>> >>>> >> >>> Mobile: +94 77460887 >>>>> >>>> >> >>> E-Mail: tharin...@wso2.com >>>>> >>>> >> >> >>>>> >>>> >> >> >>>>> >>>> >> >> >>>>> >>>> >> >> >>>>> >>>> >> >> -- >>>>> >>>> >> >> Tharindu Munasinghe >>>>> >>>> >> >> Software Engineering Intern >>>>> >>>> >> >> WSO2 Inc.(http://wso2.com) >>>>> >>>> >> >> SRI LANKA >>>>> >>>> >> >> >>>>> >>>> >> >> Mobile: +94 77460887 >>>>> >>>> >> >> E-Mail: tharin...@wso2.com >>>>> >>>> >> > >>>>> >>>> >> > >>>>> >>>> >> > >>>>> >>>> >> > >>>>> >>>> >> > -- >>>>> >>>> >> > Tharindu Munasinghe. >>>>> >>>> >> > Undergraduate ,Department of Computer Science and Engineering >>>>> >>>> >> > University of Moratuwa. >>>>> >>>> >> > Contact no. +94770460887 >>>>> >>>> >> >>>>> >>>> >> >>>>> >>>> >> >>>>> >>>> >> -- >>>>> >>>> >> Tharindu Munasinghe. >>>>> >>>> >> Undergraduate ,Department of Computer Science and Engineering >>>>> >>>> >> University of Moratuwa. >>>>> >>>> >> Contact no. +94770460887 >>>>> >>>> > >>>>> >>>> > >>>>> >>>> > >>>>> >>>> > >>>>> >>>> > -- >>>>> >>>> > ============================ >>>>> >>>> > Blog: http://srinathsview.blogspot.com twitter:@srinath_perera >>>>> >>>> > Site: http://people.apache.org/~hemapani/ >>>>> >>>> > Photos: http://www.flickr.com/photos/hemapani/ >>>>> >>>> > Phone: 0772360902 >>>>> >>>> >>>>> >>>> >>>>> >>>> >>>>> >>>> -- >>>>> >>>> Tharindu Munasinghe. >>>>> >>>> Undergraduate ,Department of Computer Science and Engineering >>>>> >>>> University of Moratuwa. >>>>> >>>> Contact no. +94770460887 >>>>> >>> >>>>> >>> >>>>> >>> >>>>> >>> >>>>> >>> -- >>>>> >>> Tharindu Munasinghe. >>>>> >>> Undergraduate ,Department of Computer Science and Engineering >>>>> >>> University of Moratuwa. >>>>> >>> Contact no. +94770460887 >>>>> >> >>>>> >> >>>>> >> >>>>> >> >>>>> >> -- >>>>> >> V. Mohanadarshan >>>>> >> Senior Software Engineer, >>>>> >> Data Technologies Team, >>>>> >> WSO2, Inc. http://wso2.com >>>>> >> lean.enterprise.middleware. >>>>> >> >>>>> >> email: mo...@wso2.com >>>>> >> phone:(+94) 771117673 >>>>> > >>>>> > >>>>> > >>>>> > >>>>> > -- >>>>> > S. Suhothayan >>>>> > Technical Lead & Team Lead of WSO2 Complex Event Processor >>>>> > WSO2 Inc. http://wso2.com >>>>> > lean . enterprise . middleware >>>>> > >>>>> > cell: (+94) 779 756 757 | blog: http://suhothayan.blogspot.com/ >>>>> > twitter: http://twitter.com/suhothayan | linked-in: >>>>> > http://lk.linkedin.com/in/suhothayan >>>>> >>>>> >>>>> >>>>> -- >>>>> Tharindu Munasinghe. >>>>> Undergraduate ,Department of Computer Science and Engineering >>>>> University of Moratuwa. >>>>> Contact no. +94770460887 >>>>> >>>> >>>> >>>> >>>> -- >>>> >>>> *S. Suhothayan* >>>> Technical Lead & Team Lead of WSO2 Complex Event Processor >>>> *WSO2 Inc. *http://wso2.com >>>> * <http://wso2.com/>* >>>> lean . enterprise . middleware >>>> >>>> >>>> *cell: (+94) 779 756 757 <%28%2B94%29%20779%20756%20757> | blog: >>>> http://suhothayan.blogspot.com/ <http://suhothayan.blogspot.com/>twitter: >>>> http://twitter.com/suhothayan <http://twitter.com/suhothayan> | linked-in: >>>> http://lk.linkedin.com/in/suhothayan >>>> <http://lk.linkedin.com/in/suhothayan>* >>>> >>> >>> >>> >>> -- >>> *Th**a**rindu Munasin**ghe.* >>> *Undergraduate ,Department of Computer **S**cience and Engineering* >>> *University of Moratuwa.* >>> *Contact no. +94770460887* >>> >> >> >> >> -- >> *Th**a**rindu Munasin**ghe.* >> *Undergraduate ,Department of Computer **S**cience and Engineering* >> *University of Moratuwa.* >> *Contact no. +94770460887* >> > > > > -- > *Th**a**rindu Munasin**ghe.* > *Undergraduate ,Department of Computer **S**cience and Engineering* > *University of Moratuwa.* > *Contact no. +94770460887* > -- *S. Suhothayan* Technical Lead & Team Lead of WSO2 Complex Event Processor *WSO2 Inc. *http://wso2.com * <http://wso2.com/>* lean . enterprise . middleware *cell: (+94) 779 756 757 | blog: http://suhothayan.blogspot.com/ <http://suhothayan.blogspot.com/>twitter: http://twitter.com/suhothayan <http://twitter.com/suhothayan> | linked-in: http://lk.linkedin.com/in/suhothayan <http://lk.linkedin.com/in/suhothayan>*
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