Combining strings

Dgswaner

I've scoured the manual, tried and tried. with no luck. Can some one tell me the command or how to combing strings.

I want to read some variables, and combine them as one long string. I was able to do this in Pbasic (going from memory) by: x = "hello_" + "world"
but if I do that with spin it seems to add the numeric values of the 2 and I only get weird symbols.

do I need to write each variable to memory and then read the whole memory area as one string?

I'm stuck. any help would be appreciated.

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"A complex design is the sign of an inferior designer." - Jamie Hyneman, Myth Buster

DGSwaner

Paul Baker

There is no native string manipultaion support, you can either get an object from obex or use bytemove to directly manipulate memory, but you also need to make sure theres room to do the copy, and that you strip the 0 at the end of the first string and make sure the 0 and the end of the resultant string is there

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Paul Baker
Propeller Applications Engineer

Parallax, Inc.

Dgswaner

Thanks Paul, at least I can stop looking now. I think I'm going to try a different approach that doesn't require sending one string. thanks

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"A complex design is the sign of an inferior designer." - Jamie Hyneman, Myth Buster

DGSwaner

Post Edited (Dgswaner) : 4/10/2008 4:39:36 AM GMT

hippy

There's some information and example code for combining and manipulating strings on the Propeller Wiki ...

propeller.wikispaces.com/Strings

Chuck Rice

Here is a little routine that I use to concatinate strings

Example call:

var
  byte buffer[noparse][[/noparse]80]

pub
  concatStr(@buffer,string("hiya-"),string("toots"))

Concatenation routine

pub concatStr(dest,s1,s2)     '' Concatenates two strings and stores the result in 'dest'

    bytemove(dest,s1,strsize(s1))
    bytemove(dest+strsize(s1),s2,strsize(s2))

-Chuck-