| Thanks; I think this is going to give me a lot of tools/understanding to go fwd from here. A few questions: |
Fire away
🙂
- when you use readDelimitedString "."(or readValue), it's basically "capture everything until you find this character (dot, comma, etc)". Yes?
- then for the next read, it starts from where you left off, it doesn't go back to beginning of line, yes? |
Yes and Yes. Essentially "read until you find the delimiter" then "throw away the delimiter". If the values in the string were not an IP address you could use readValue instead of the readDelimitedString, but that won't work in this instance because of the extra "dots" - it tries to work, but fails because a number can't have more than 1 decimal point (the dots).
| - what's going on w/ the nIP section where you use 16777216, 65536, 256? |
An IP address can be looked at as a 32bit integer value. Each octet can have one of 256 values (0-255)., so each successive octet (from right to left) is a factor of 256 greater than the preceding one.
0.0.0.254 = 254
0.0.0.255 = 255
0.0.1.0 = 256
0.0.1.1 = 257
0.0.255.255 = (255*256)+255 = 65535
0.1.0.0 = 65536
and so on. Basically Hexadecimal notation but using decimal digits. All it is doing is converting the textual IP address into a number.
| - format: IPArray... don't understand the |
Think of it as a spreadsheet - rows and columns
. C O L U M N S
| 1 | 2 | 3 |
--|-----------|-----------------|-------|
R 1 | 16909060 | 1.2.3.4 | 00:01 |
--|-----------|-----------------|-------|
O 2 | 84281096 | 5.6.7.8 | 01:30 |
--|-----------|-----------------|-------|
W 3 | 16909060 | 001.002.003.004 | 13:50 |
--|-----------|-----------------|-------|
S 4 | 134810123 | 8.9.10.11 | 16:00 |
--|-----------|-----------------|-------|
IPArray = the whole of the 1st row, IPArray = the contents of the 1st column in the 1st row.
The variable "t" is looping from 1 to 4 thus selecting each row in turn.
| - the BIG question: where can I go thru tutorials/courses that teach all this? All this file-reading/Stringstream/filestream content... reading the MXScript help doesn't seem to be working for me. I've went thru Bobo's tuts a couple times, but I dont' believe they cover these specifics. |
Yep - that's the biggy.
The
principles are common to most languages, it's the
syntax which is different - that's where the MXS help comes in. There's a couple of books on MXS (though I don't have any and so can't recommend which to get) which may be of some help. The MXS help does cover them (readStringDelimited for example) but in a fairly basic "this is what it does" kind of fashion - there are some examples though, so it's a case of extrapolating from the examples given to get what is required in each specific case.
| Thanks again for your help. |
You're welcome
🙂
Max 2016 (SP1/EXT1)
Win7Pro x64 (SP1). i5-3570K @ 4.4GHz, 8Gb Ram, DX11.
nVidia GTX760 (2GB) (Driver 430.86).
