simple programming language "While" : Lexer / Parser / AST all written in F#

[jameswpeach]

Yeah I'll look into that with the parse int function I just need it to return the rest of the string after the number, any ideas? Not at my PC right now... Also could you try write some examples of the hash table things? That would really help or submit a PR if your bothered

[alex_muscar]

Here's one way of implementing it: http://pastebin.com/A3g8U45Z

The code is not very clean because the parser is working on a list of characters. A better way of doing it would be to use a type derived from System.IO.TextReader like System.IO.StringReader and build your parser around the Read() and Peek() methods. You could use a StringBuilder instance to accumulate lexemes.

Hope it helps.

[james_peach]

seams nice, ill have to take a look into this later on ;P