Parses using Recursive Descent GUI Calculator Program

Ακυρώθηκε Αναρτήθηκε Πριν 7 χρόνια Πληρώθηκε κατά την παράδοση
Ακυρώθηκε Πληρώθηκε κατά την παράδοση

Project needs to be completed in 2 days.

The first programming project involves writing a program that parses, using recursive descent, a GUI definition language defined in an input file and generates the GUI that it defines. The grammar for this language is defined below:

gui ::=

Window STRING '(' NUMBER ',' NUMBER ')' layout widgets End '.'

layout ::=

Layout layout_type ':'

layout_type ::=

Flow |

Grid '(' NUMBER ',' NUMBER [',' NUMBER ',' NUMBER] ')'

widgets ::=

widget widgets |

widget

widget ::=

Button STRING ';' |

Group radio_buttons End ';' |

Label STRING ';' |

Panel layout widgets End ';' |

Textfield NUMBER ';'

radio_buttons ::=

radio_button radio_buttons |

radio_button

radio_button ::=

Radio STRING ';'

In the above grammar, the red symbols are nonterminals, the blue symbols are tokens and the black punctuation symbols are BNF metasymbols. Among the tokens those in title case are keywords. The character literals are punctuation tokens.

Below is an explanation of the meaning of some of the symbols in the above productions that should help you understand the actions that are to be performed when each of the productions is parsed:

In the window production the string is name that is to appear in the top border of the window and the two numbers are the width and height of the window

In the production for layout_type that define the grid layout, the first two numbers represent the number of rows and columns, and the optional next two the horizontal and vertical gaps

In the production for widget that defines a button, the string is the name of the button

In the production for widget that defines a label, the string is text that is to be placed in the label

In the production for widget that defines a text field, the number is the width of the text field

In the production for radio_button, the string is the label of the button

You parser should properly handle the fact that panels can be nested in other panels. Recursive productions must be implemented using recursion. Syntactically incorrect input files should detect and report the first error.

Below is an example of an input file:

Window "Calculator" (200, 200) Layout Flow:

Textfield 20;

Panel Layout Grid(4, 3, 5, 5):

Button "7";

Button "8";

Button "9";

Button "4";

Button "5";

Button "6";

Button "1";

Button "2";

Button "3";

Label "";

Button "0";

End;

End.

Code MUST have comments, and be original (your own work). Please provide a Word document with screenshots, lessons learned, improvements, and any references.

PHP Αρχιτεκτονική Λογισμικού

Ταυτότητα Εργασίας: #10821526

Σχετικά με την εργασία

8 προτάσεις Απομακρυσμένη εργασία Ενεργό Πριν 7 χρόνια

8 freelancers κάνουν προσφορές κατά μέσο όρο $146 για αυτή τη δουλειά

vano101

Hello. What is it? "Please provide a Word document with screenshots, lessons learned, improvements, and any references." Is it needed?

$31 USD σε 2 μέρες
(836 Αξιολογήσεις)
7.3
it2051229

Hi there, I have read the requirements and I would like to do this project if given the opportunity. I have done this project before and I am willing to create a unique solution for you. Let me know if you are interest Περισσότερα

$30 USD σε 1 μέρα
(582 Αξιολογήσεις)
7.1
nileshbakotiya

Hi you will find my services highly reliable and professional. My Vision : High Quality, High Speed, High Satisfaction! i have 7 years business experience with certified and skilled . We are always looking to pu Περισσότερα

$122 USD σε 6 μέρες
(49 Αξιολογήσεις)
5.3
muralidaran84

I am Microsoft certified professional having 8+years of experience in software development. I have experience working with Windows Applications - C#, VB, WPF, Office Automation, Mobile Automation and Web Application Περισσότερα

$250 USD σε 3 μέρες
(8 Αξιολογήσεις)
4.4
wolibaba

Red, Blue? I think I can do this project within about 2 days. But I need a more clear requirement to do this task.

$155 USD σε 2 μέρες
(1 Κριτική)
1.9
academiapro

Greetings Esteemed client!! I am a highly experienced writer in a range of different subjects. I am well versed in this area of study and i can assure you great paper. I am available to discuss further on the order de Περισσότερα

$250 USD σε 2 μέρες
(0 Αξιολογήσεις)
0.0