Zyxonia/Common Command List

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Here are more analyzation for every command.

System command control

do SubroutineName
Indicates the beginning of a subroutine (or function).
end
Indicates the end of a subroutine (or function).
CLS
Clear the screen.
BYE
Exit the programming environment directly.
EXIT
Terminate the program immediately.

Variable operations

LET name(type) <- value
Declare a variable and assign a value to it. If the variable type is omitted, it becomes a direct assignment. 
You can change its type with another type as its value, 
assign a blank value to indicate no value, 
and assign a value with DEL to indicate deletion.

I/O

LET name <- INPUT(__prompt)
Takes an input from the user and assigns it to a variable. 
The input must match the variable type. 
You can also enter a string with RAW_INPUT instead of INPUT.
PRINT(value, END <- "")
Outputs the specified value, ending with END. 
If there is only one value, feel free to omit the parentheses.
filename |> INPUT
Read data from filename in read-only mode. 
It is possible to change filename to CON to redirect to standard input. 
If filename does not exist, an error occurs.
filename <| PRINT
Write data to filename in append mode. 
If you add another vertical bar(fioename <|| PRINT), 
it means write-only mode 
(in this case, the contents of the filename will be cleared and then written, while the append mode will not clear the contents). 
If filename does not exist, a new file is created for writing instead of an error. 
Redirecting to CON will set the output to standard output.

Preprocessors

#INCLUDE<lib_name>
Introduce lib_name. All content is imported by default, and the standard library name and module name need to be added.
#INCLUDE<module>FROM<lib>
Import module from lib. The two modules are separated by a comma.
#IF condition
If the conditions are met, add the code to the processed code file.
#ELSE
If all the conditions of the IF block and ELIF block are not met, the code in the ELSE block is added.
#ELIF condition
Another condition.
#ERROR error
It produces an error. This will make the compilation process incomplete.