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SYNTAX.md

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Syntax guide for vertical

Table of contents:


Columns

  • In vertical the code is written vertically so instead of rows there is columns.
  • The execution starts on the first character of the first column.
  • If the execution is at the end of any column the program will stop.
  • Every column is a "method".
  • You can jump between columns using execution points.

Execution points

  • Execution points is the same as goto labels

  • You can define a execution point like this:
    §
    0

  • To jump to thisexecution point use the @ keyword:
    @
    0

  • An execution point label can be any positive intager

Variables

  • You can define variables like this:
    Int:

    a   <-variable name
#   <- value of a int surrounded with hashtags
1   <- value (can be a int expression)
#

    String: 

    b   <-variable name
"   <- value of a string starts with a double quote.
H   <- value
i
'   <- value of a string ends with a single quote.

  • A variable name only can be a sigle lovercase letter!! (hungarian letters supported)

  • To give a variable a different value use the format from above.

  • You cannot assign a string value to a previously int variable and vica versa.

  • You can create global variables with the G keyword before the variable name.

  • Global variables can accessed outside the column where it was created.

  • If you want to overrwite a global variable you also need the G keyword before the variable name

  • Int expressions:

    • Int expressions is math expression that can be used when defining ints
    • Only addition, substraction and multiplication is supported
    • Negative nubmers are supported
    • You can use int variables in int expressions
    • You cannot use floating point numbersin int expressions

If statements

  • Example if statement:

    ?   <- if statement starts with a question mark
a
|   <- the actual statement
b
/   <- if true sign
    <- some code that happenes when the statement is true
\   <- if false sign
    <- some code that happenes when the statement is false
_   <- end if sign

  • The if true, if false and end if signes must be in this order.

  • The expression operators:

    • | this operator means equal
    • ! this operator means not equal
    • > this operator means the first side is bigger (only can used on ints or int expressions)
    • < this operator means the second side is bigger (only can used on ints or int expressions)

  • Strings only can compared in a variable form (you cannot compare raw strings just string variables)

  • Ints and int expressions can compared freely.

  • Dont leave spaces in a if statement!

Builtin commands

Print - P

  • It's like Console.WriteLine()
  • It will start a new line after writeing the variable to the console
  • You only can print a single variable

Write - W

  • It's like Console.Write()
  • It won't start a new line after writeing the variable to the console
  • You only can print a single variable

Quit - Q

  • It will stop the program.