Soodocode

Soodocode: a runtime for Cambridge CS (9618) pseudocode syntax, written in Typescript.

Website

Click here to view the site

CLI

Installation: npm i -g soodocode-cli

Usage: soodocode file.sc

More demos

Features

Statements

• DECLARE, DEFINE, CONSTANT, Assignment, OUTPUT, INPUT, RETURN, CALL, TYPE
• IF, ELSE, FOR, FOR STEP, WHILE, REPEAT
• CASE OF statements
• Case branch with range
• FUNCTION, PROCEDURE
• CLASS, CLASS INHERITS, Class property, Class procedure, Class function

Operators

• or and equal_to not_equal_to less_than less_than_equal greater_than greater_than_equal not
• add subtract negate multiply divide integer_divide mod
• string_concatenate
• pointer_reference pointer_dereference access

Builtin functions

• LEFT, RIGHT, MID/SUBSTRING, TO_UPPER, TO_LOWER, UCASE, LCASE
• NUM_TO_STR, STR_TO_NUM, IS_NUM, ASC, CHR, INT
• DAY, MONTH, YEAR, DAYINDEX, SETDATE, TODAY/NOW
• LENGTH() on arrays and strings
• RAND

Arrays

• n-dimensional arrays
• Arrays with size determined by runtime-evaluated expressions
• Arrays with generic size
  • in function arguments
  • in function return types
  • in class fields
  • behind pointers

Types

• Enums
• Records
• Pointers
  • Infinite pointer types
• Recursive types
• Sets
• Set operations
• Integer range type (1..10, 200..250)
• Sound type system
  • Type checking is partly done at compile time (class inheritance, type esize check) and partly at runtime (everything else).

Classes

• Classes
• Public/private class members
• Inheritance
• SUPER in classes

Files

• OPENFILE READFILE WRITEFILE CLOSEFILE statements
• READ WRITE APPEND file modes
• SEEK GETRECORD PUTRECORD statements, RANDOM file mode
• File GUI
• EOF() function

Misc

• Passing by value/reference for all variable types
• Shortened forms (for variable declaration and function arguments)
• Robust, hundreds of error messages
• Typo checking
• Error ranges (underline the exact cause of the error, highlight the area around it)
• Configurable
• Allows any words as identifiers (except pseudocode keywords), including for, __proto__, and hasOwnProperty

User interface

• Minimalistic
• Create, view, edit, delete, upload, and download files
• All features accessible with only the keyboard

More information

For a full list of features, see features.md

For some discussion of advanced language features, see notes.md