ESP8266 Community Forum

- Tue Jun 23, 2015 3:11 pm #21411 In the snippet below:

Code: Select allprint("request=["..request.."]")
 _, _, method, path, vars = string.find(request, "([A-Z]+) (.+)?(.+) HTTP");
  print("method=", "["..method.."]")
  print("path=", "["..path.."]")
  print("vars=", "["..vars.."]")


request= [GET / HTTP/1.1]
and the results are:
method= nil
path= nil
vars= nil

Why is method nil. I can't figure out why it is not "GET"
The first capure is ([A-Z]+) so according the rules of pattern-matching it should be "GET".

Please enlighten me !

- Thu Jun 25, 2015 8:02 am #21607 Moin,

please notice that

Lua does not use POSIX regular expressions (regexp) for pattern matching

.

http://www.lua.org/pil/20.1.html

Cal

Last edited by cal on Thu Jun 25, 2015 11:49 am, edited 1 time in total.

Get your modules here:

https://www.banggood.com/custlink/KvGGhGF4wG

- Thu Jun 25, 2015 10:44 am #21626 My link below points you to the necessary references.

Please see my Developer FAQ for Q&A on nodeMCU Lua before asking a question here that's already been answered. This and the other official documentation should be your first reference for developing Lua Apps