Re: Finding intermediate token in a string

[Dirk Laurie <dirk.laurie@...>]

2014-07-07 9:18 GMT+02:00 Austin Einter <austin.einter@gmail.com>:
> Hi All
> I can have an input string with any one of below formats
>
> \r\nContent-Length: 100 \r\n
> \r\nContent-Length    :      100 \r\n
> \r\nContent-Length:100    \r\n
>
> Input string can be of any one value from above examples
>
> My aim is to extract 100 as an integer.
>
> What is the best way to do it.
>
> Please note that, input string might have some data before or after of given
> example values.

pat="\r\nContent%-Length:%s*(%d+)%s+\r\n"
num = tonumber(string.match(str,"pat"))