aftjs-lang README

This extension adds syntax highlighting for aftJS scripts (.aftjs and .aftxjs) to VSCode.

Features

The aftJS language is like JavaScript, actually it is JavaScript, nearly 100% compatible with the ECMA5 specification, but it has several additional functions and methods specifically designed to develop Managed File Transfer scripts.

Limitations

The following are some differences and limitations of the aftJS vs JavaScript:

• use strict will parse, but won't have any effect
• The regular expression engine (re2/regexp) is not fully compatible with the ECMA5 specification
• aftJS targets ES5. ES6 features (eg: Typed Arrays) are not supported

In addition to the above, some specific limitations apply to the way regular expressions are handled. Therefore, the following syntax is incompatible:

• (?=) // Lookahead (positive), currently raises a parsing error
• (?!) // Lookahead (backhead), currently raises a parsing error
• \1 // Backreference (\1, \2, \3, ...), currently raises a parsing error

Aside from that, JavaScript programmers will feel extremely familiar with aftJS, and the added power of high-level aft-specific functions, makes developing aft tasks with this language a real breeze.

Release Notes

2.0.1

• Initial release of the aftJS syntax highlighter (supersedes mftJS v1.x.x)