writing own parser

whackaxe · 10-02-2002, 06:01 PM

i was wandering if someone could tell me wher i could learn how to make my own parser for the web (like PHP or perl). i dont really have any particular reason for doing this i was just interested. any ideas?

Bosko · 10-02-2002, 07:59 PM

You can start by making simple little scripting languages,search for Yacc with google for more info.Or you could make a mathematical expression parser.

fivesidecube · 10-02-2002, 08:08 PM

whackaxe,

There is also bison, GNU's version of yacc.

Fivesidecube.

Shawn Curry · 10-05-2002, 08:13 AM

Just an idea (if you were planning on writing it yourself) you could model it after windows(i.e. message handling). You use the parser function to parse, then it has a set of events you want to handle. When the parser identifies an event (maybe a closed parenthesis after an open one), it fires the event, which may/may not change the position of the pointer you're parsing with, or it might call a new one. Like I said, just an idea.