Version 0.9.1

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Compiler for czechtina written in czechtina

Why Czechtina?

Czechtina is programming language based on C and czech language. Czechtina should be faster to write than c and with additional features, easier to maintain. lot of features are still missing, but it is still in development.

Installation

Requirements

• having c compiler installed on your system with cc command

using shell script

for stable version for your system

  ./install.sh --stable

Syntax showcase

zpracuj histo:pointer<int>, minimum:int { void
    c:int = 0;
    scanf "%d", adresa c;
    for i:int -> 0 do 9 {
        if c == i+minimum {
            histo[i] += 1;
            return;
        }
    }
    histo[9] = histo[9] + 1;
}

main {
    t:char;
    histo:pointer<int> = [0,0,0,0,0,0,0,0,0,0];
    scanf "%c", adresa t;
    if 'v' != t != 'h' {
        println "Neplatny mod vykresleni";
        return 1;
    }
    n:int;
    minimum:int;
    scanf "%d", adresa n;
    scanf "%d", adresa minimum;
    for i:int -> 0 do n {
        zpracuj histo, minimum;
    }
    return 0;
}

Upcoming Features

• array type (generic type)
• redesign virtual functions
• prelude in czechtina
• type checking
• memory management
• modularization
  • each module compile into one C file

after 1.0.0

• function overloading
• operator overloading
• enums as types
  • type can be now enum
  • enum will have its own print function
  • int and enums cant be mixed
  • exact match will be used to work with enums
• match and exact match
  • instead of if else
  • exact match will be used to work with enums for now

Changes comparing to C language

syntax

Czechtina -> C

• variable declaration
  • name:type; -> type name;
  • name:type = value; -> type name = value;
  • name:type = [value1, value2, ...]; -> type name = {value1, value2, ...};
• function definition:
  • name args { type -> type name(args) {
• function call:
  • zavolej name; or call name; -> name();
  • name arg; -> name(arg);
  • name arg1, arg2, ...; -> name(arg1, arg2, ...);
    • if there is expression in arguments, it will be evaluated before function call
    • name arg1, name2 arg2; -> name(arg1,name2(arg2));
    • name arg1, 5 == false; -> name(arg1, 5 == false);
• for syntax
  • for i:int -> 0 do 10 -> for(int i = 0; i < 10; i++)
  • for i:int -> 0 az 10 -> for(int i = 0; i <= 10; i++)
• if and else if are without brackets
  • if condition -> if(condition)
  • else if condition -> else if(condition)
• after if, else if, else, for, while there is block or -> one line of code
  • if 5 == 5 {...} -> if(5 == 5) {...}
  • if 5 == 5 -> return 0; -> if(5 == 5) {return 0;}

few virtual functions

• InC <data>
  • data has to be string literal
  • -> data will be wrtitten to C source file;
• throw <data>
  • data has to be string literal
  • -> print error message and exit program
• adresa <var>
  • -> return address of var
• hodnota <var>
  • -> return value of pointer var
• typeof <expr>
  • -> return type of var as string
• sizeof <expr>
  • for identifier return sizeof(void*)
  • any other is handled by c
  • -> return sizeof(expr)
• printf <format>, <...args>
  • -> fprintf(czStdOut, format, args)
• println <...args>
  • -> print all args to czStdOut then print newline
• print <...args>
  • -> print all args to czStdOut