Values

Integer Literals

decimal := 114514;
hex := 0xff;
another_hex := 0xFF;
octal := 0o76;
binary := 0b100111;

//underscores may be placed between two digits as a visual separator
underscore_separator := 100_000_000;

Float Literals

floating_point := 123.0E+77;
another_float := 123.0;
yet_another := 123.0e+77;

hex_floating_point := 0x103.70p-5;
another_hex_float := 0x103.70;
yet_another_hex_float := 0x103.70P-5;

//underscores may be placed between two digits as a visual separator
lightspeed := 299_792_458.000_000;
nanosecond := 0.000_000_001;
more_hex := 0x1234_5678.9ABC_CDEFp-10;

Character Literals

A character literal is a character quote by '':

char : test "Character Literals" = {
    c := 'a':c8;
    nl := '\n':c8;
}

String Literals

String Literals

A string literal is a character sequence quoted by "", the character sequence may contains escape sequences:

string : test "String Literals" = {
    str1 := "Hello World!";
    escape := "next line\n";
}

Interpolated String Literals

A interpolated string literal is a character sequence which contains capture expressions. The interpolated string literal needs to be quoted by "":

fstring : test "Interpolated String Literals" = {
    i := 42:i32;
    b := true;
    arr : [_]i32 = {1, 1, 5};
    fstr := "i = i$, b = b$, arr = arr$";
    assert(fstr == "i = 42, b = true, arr = {1, 1, 5}");
}

Raw String Literals

A raw string literal is a character sequence quoted by R"()":

raw_string : test "Raw String Literals" = {
    no_escape := R"(next line\n)";
    assert(no_escape == "next line\\n");
}

Interpolated Raw String Literals

A raw string literal is a character sequence quoted by R"()", the character sequence contains capture expressions:

raw_fstring : test "Interpolated Raw String Literals" = {
    i := 42:i32;
    b := true;
    arr : [_]i32 = {1, 1, 5};
    fstr := R"(i = "i$", b = "b$", arr = "arr$")";
    assert(fstr == "i = \"42\", b = \"true\", arr = \"{1, 1, 5}\"");
}

Multiline String Literals

Multiline string literals have no escapes and can span across multiple lines. To start a multiline string literal, use the """ token.

multiline_string : test "Multiline String Literals" = {
    multiline_str := """
    #include <stdio.h>
    
    int main(int argc, char **argv) {
        printf("hello world\n");
        return 0;
    }"""
    ;
}

Escape Sequences

Escape Sequence	Description
\\'	Single quote
\\"	Double quote
\\?	Question mark
\\\\	Backslash
\\a	Audible bell
\\b	Backspace
\\f	Form feed - new page
\\n	Line feed - new line
\\r	Carriage return
\\t	Horizontal tab
\\v	Vertical tab
\\u{NNN}	Arbitrary Unicode value