Analysis of Programming Language Vladimir Viies Lembit Jürimägi Tallinna.

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Analysis of Programming Language Vladimir Viies Lembit Jürimägi Tallinna Tehnikaülikool 2014

Subject contents Classification of algorithmic languages. Universal and specific languages. Comparision of the possibilities of data types, sentences and intramodular data exchange in different languages (FORTRAN, PL/1, PASCAL,Assembler etc.). Data types and addressing in assembler language. Translators, their components and work principles. Art of translator design. 3

Subject goals a student has to be able: - to associate tasks with a suitable algorithmic language; -to design a special purpose algorithmic language and create a compiler for it; 4

Points max Practice x p Seminar x p (inc.essay) Homework p (translater) Written examination--35p Test p Permission to examination min 20pract + 10test +10sem/hom FINAL result =100p(P+S+H+W) 5

Course structure  I moodul: Practice(translator design)  II moodul: Seminars(Comparision of the possibilities in different languages )  III moodul:Homework (create a compiler ) 6

Exercise 1 Your assignment are to select 3 of the languages (set of languages) and evaluate its standard implementation. You are to assign the language a grade (1 through 8) for each criterion point listed below and to provide written justification for your rating. This set of languages is to include at least the following: Fortran, Cobol, PL/I, Pascal, C, C++, Ada, Lisp, Smalltalk, Basic, Modula-2, Algol, APL, Snobol, Icon, Prolog, Simula, Scheme, Eifel, Oberon, Visual Basic, Visual C++, C#, Perl, Java, Delphi, HTML, Go, Python, Ruby. 7

Criteria for Language ( seminar) Criteria for Language Design Evaluation 1. efficiency (translation and execution) 2. simplicity (readability and writability) 3. orthogonality 4. definiteness (syntax and semantics) 5. reliability 6. program verification (correctness) 7. abstraction facilities (data and procedural) 8. portability 8

Excercise 2 LOOP: DO WHILE (FLAG = 0); PUT SKIP DATA('HELLO WORLD!'); END LOOP; END HELLO; ******Ouput for Hellow World WRITE(6,*)'Hello world' STOP END class HelloWorld { public static void main(String args[]) { System.out.println("Hello world!"); }} #include main() { printf("Hello World"); } 9

Test task example Write an interpreter for the calculator language defined below. You may assume that there are no operator precedence rules if you wish. expression::= operand [ operator operand]. operand ::= 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 operator ::= + | - | * | / You may use any language you wish to do this. You will need to turn in a clearly commented source listing of your program. 10 Tagasi

Täname, et läbisid kursuse! Jätka ainete omandamist tarkvaraainete plokist ! Tutvu ainetega Infotehnoloogia teaduskonna õppematerjalide kodulehel