tables – stuff you can do with them?

[human fly]

*viz: this is just a look at aspects of Lua, rather than
direct common Ctrlr applications. *

Tables.
big subject, obviously – just from a few checks around
sites. mind boggling diversity of examples out there.
i mean within Ctrlr.

recently was englightened with table.insert. that’s cool.
i’m discovering the consequences of that (you can ‘insert’
onto an existing table, for example, but i’m not sure if
you get a ‘clean’ addition – try ‘dump’ to see results)

so that’s useful for building a table on the fly.
what about ‘getting’ the data for that table afterwards,
for example?

so i tried
‘for i,v in ipairs …’
and i’ve got as far as printing ‘v’ (data/values) to console.
now i’m off to see how getRange works, but i have a feeling
that that is for memory blocks, and these represent the data
in another form.

i have not yet, for example, been able to concatenate these
as strings into a single string. do i even want/need to do
that? (i’m finding out re issues with values vs strings …)

and then: toHexString() producing unexpected results – that
will only work on a memory block, not direct from a table.

anyway: you see the kind of thing…

anyone out there? still on the forum? been pretty quiet lately !

[human fly]

ah, here we go:
‘table.concat’ :o)

http://lua-users.org/wiki/TableLibraryTutorial

(but that’s just the start of this …)

[human fly]

ok, this is great. but what if the table is compiling
different value ranges, some, say 0-4, and others 0-11?
1 or 2 characters? once it’s concatenated, nobody can
tell them apart? i have to convert, ie: to hex first?

(see ‘simple sequencer’ thread for clarification)

[human fly]

well it seems it is finite. but these lua tutorial sites
are not always very good.

this, for instance, is not:
https://www.lua.org/pil/2.5.html
nor:
https://www.lua.org/pil/3.6.html

and here, which starts off well …
http://lua-users.org/wiki/TablesTutorial

well, as soon as they start going ‘foo’, and ‘bar’, all
i can think of is ‘fubar’, which is:
‘f***ed up beyond all recognition’

stackoverflow lets users give more examples. whether
that’s good or not, i don’t know, but it offers a
few more applied insights, and in a format you can
just nick with copy+paste …

[human fly]

this is better reading

http://lua-users.org/wiki/TableUtils

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