Question about arrays

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1

I have some questions about manipulating arrays in Xojo

Is it possible to determine the size of array created by split? Something like $# in perl

[code]tmp() as String
tmp = Split(“F1,F2,F3,F4,F5,F6,F7,F8,F9”, “,”)

In Perl it would be $#tmp which would equal 8[/code]

If I do tmp.remove 0 Does everything shift over, or does the array now start at 1

The LRM says there is a “pop” command: astring =tmp.pop which removes an item off the end of the array. What about manipulating the other end? Is there something akin to the perl shift/unshift? ( I realize that foo=tmp(0) and tmp.remove 0 could be equivalent to shift, depending on the answer to my previous question)

How do I specify a comma in a comma separated list of array elements?

tmp = Split(“F1,F2,F3,F4,F5,F6,F7,F8,comma?”, “,”)

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The UBound function tells you the upper bound (size) of the array:

Dim size As Integer = UBound(tmp) // Returns 8 from your example

Everything shifts over.

I don’t know that you can.

If you haven’t already found them, all the array-related commands are in the Language Reference here: http://documentation.xojo.com/index.php/Category:Language_Arrays

3

You’d have to write your own code for that, probably around a regular expression. However, in this case, you could do this instead:

tmp() as String 
tmp = Array( "F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8,comma?" )
4

Paul: Thanks for the quick reply. I read the man page for remove and it did not specify how the resultant array would be structured. I should have seen ubound. I looked at several of the other array related commands. somehow I failed to read that one. Sorry

Kem: Thanks for the reply. I saw something similiar to what you suggest (SQLify) in section 12.5 on databases in Intro to Xojo. I wanted to see if there was something native like the way a " is escaped by using it twice

5

Quotes are the only things that can be escaped in strings. Strings are not evaluated as they can be in perl, so you also can’t, for example, include a variable within the string like, “my name is $name”.

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