On 8/29/2022 7:33 PM, BPJ via ntg-context wrote:

Hi,

I use the attached Lua function to merge array, map and mixed tables alike (but differently! :-) The trick is to check if each key is numeric or not, append if it is and overwrite if it isn't.

This function just ignores non-table arguments because that is what I usually want. You may want to throw an error instead. Also it uses table.pack. You might need to use `tab = {...}` and ipairs, or implement pack: I might add table.himerged (hash and index) but slightly different (and some 30% faster) to util-tab but i think merging mixed hash/indexed

you really want something like this then: local tab = table.pack(...) local rv = {} tables is rare. Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------

Come to think of it you may also want to check that numeric indices are indeed positive integers before appending their value. I usually don't because their not being so is rare. Den tis 30 aug. 2022 10:56BPJ skrev:

Den mån 29 aug. 2022 20:13Hans Hagen via ntg-context skrev:

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On 8/29/2022 7:33 PM, BPJ via ntg-context wrote:

...

Hi,

I use the attached Lua function to merge array, map and mixed tables alike (but differently! :-) The trick is to check if each key is numeric or not, append if it is and overwrite if it isn't.

you really want something like this then:

local tab = table.pack(...) local rv = {}

Thanks. I was manually translating from MoonScript (https://moonscript.org) where variables are local by default.

...

...

This function just ignores non-table arguments because that is what I usually want. You may want to throw an error instead. Also it uses table.pack. You might need to use `tab = {...}` and ipairs, or implement pack: I might add table.himerged (hash and index) but slightly different (and some 30% faster) to util-tab but i think merging mixed hash/indexed tables is rare.

Hans

----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------

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On Mon, 29 Aug 2022, Hans Hagen via ntg-context wrote:

...

Hi,

How do I merge two lua tables? I believe that table.merge or table.merged should do the trick, but I cannot figure out how to use them.

``` local t1 = { 1, 2 } local t2 = { 8, 9 }

local m1 = {} table.merge(m1,t1, t2) table.print(m1)

local m2 = table.merged(t1, t2) table.print(m2) ```

Processing the file with context filename shows that both m1 and m2 are {8, 9}. What am I missing.

On 8/29/2022 2:20 PM, Aditya Mahajan via ntg-context wrote: table.imerge(m1,t1, t2)

Ah, thanks! Aditya