Write some Software
$30-250 USD
K zaplacení v momentě doručení
The user enter a code in Mini C language (described below). The analyser tokenizes the code into
tokens according to white spaces and symbols. Each token is assigned to a valid type and line
number. The description of types are below. You have to write a regular expression for each type.
For assigning a type for a token you can use the following algorithm:
Your program should have one GUI interface that have:
text box to type a code by the user. Textbox to show the errors if any. 2 buttons one for lexical
analyser and the other for syntax parsing. An option to upload a text file.
The lexical analyser reads any code from a textbox or a file (note that multi-spaces
are accepted as one space for tokenization)
You should use regular expressions to identify types of the tokens.
Output: Identify the lexical errors with a clear message.
Output: a list of (line number, token, type) should be generated in a text file with all
errors exist.
The user can modify the code from the screen and rescan again.
Note: This phase concerns on the tokens regardless the syntax structure of the statements. For
example: the tokens in a statement (x int =5;) are accepted; but one token is not accepted in (3int
x=5;) as 3int is not accepted in all DFA we have. Thus you should report a lexical error with line
number.
Mini C language:
This language is a subset of C language just to practice compiler design process. It contains a
set of primitive types (that you have to write a regular expression for each) and other types
that will be used in the grammars in the syntax phase.
Primitive types: Digit, letter, INT_NUM, FLOAT_NUM, ID, Void
STR is a type of string which has numbers/spaces/letters/symbols
Token *\ Type: END COMMENT. Token: /* Type: BEGIN COMMENT.
Token: if Type: IF. Token: Token: * Type: MULT. Token else Type: ELSE. And so on..
The syntax is similar to C language that has:
Control statements (if, loops,…) and nested statements
Declarations will be in format (variables: type) all variables must be declared at the beginning of the
program or function.
Function will be in format (function_name: type(list of parameters){}), recursive call is also accepted
Blocks of code will be in format { code }
It is not case sensitive (small/capital letters are the same).
The project submission requirements:
A report with a brief description of the compiler phases.
Regular expression and types of the programming language
Snapshots of the lexical analyser input and output.
The context free grammars for the syntax using the description and the start symbol will be:
Program -> Proram_name srart: Declarations functions body
The code.
A video of how to run the program with correct and incorrect input.
Ex:
TestProgram start:
Var1, Locvar1,age Integer
var1:=5
func1: Void (var2 integer) {
print ( var2)
}
Locvar1:=var1+6-2
enter( age)
if (4+2 == var1*2) then {
print(“good”, age)
func1(var1)
}
Identifikační číslo projektu: #13815913
O projektu
7 Freelnceři na tento projekt zveřejňují nabídky v průměru $284
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HI. I am Softwares engineer and programmer. I had completed more than 60+ projects. I also worked with UN Projects. I am ready to start that project. If you have any questions you may ask. Regards Umarbsse
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