Features

• Multi-language architecture enables you to use a number of languages
  (at present moment PascalScript, C++Script, BasicScript, JScript).
  You can add any procedural language (language grammar is stored in
  XML format).
• Standard language set: variables, constants, procedures, functions
  (nested functions allowed) with var/const/default parameters, all
  the standard operators and statements (including case,
  try/finally/except, with), types (int, float, bool, char, string,
  multidimensional array, enum, variant), classes (with methods,
  events, properties, indices and default properties).
• Types compatibility checking.
• Access to any object inside your application. Standard libraries for
  the access to the base classes, controls, forms and BD. Easily
  expandable library architecture.
• Small footprint - 90-150Kb, depending on used modules.
• Can be used in multi-thread environment.

Missing features

• No type declarations (records, classes) in the  script; no records,
  no pointers, no sets (but you can use 'IN' operator - "a in
  ['a'..'c','d']"), no shortstrings, no GOTO statement.
• C++Script: no octal constants; no 'break' in the SWITCH operator
  (SWITCH works like Pascal CASE); '++' and '--' operators are
  possible only after the variables, that is '++i' is not allowed;
  '--', '++' and '=' operators do not return a value, that is
  'if(i++)' is not allowed; all the identifiers are case-insensitive;
  NULL constant is the Pascal Null - use nil instead of NULL.
• JScript and BasicScript: see syntax diagrams.