JSON pretty encode
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Bogdan Irimia
Sep 28, 2015, 8:37:28 AM9/28/15
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Hello, everybody
We need to encode a LUA data structure using JSON encoding, but in a human readable format, like this:
Please note the indentation for each item in the data structure.
I found for this two libraries written in pure Lua:
The first one seems to be faster for encoding (according to this: http://lua-users.org/wiki/JsonModules), but anyhow much slower than other C-based libraries (like "cjson" already included in OpenResty).
This type of "human readable encoding" (or "pretty encoding") is used only in a few places in our application, so performance is not critical, but the output has to be compatible with the "cjson" library.
What would you recommend?
Thank you
Bogdan
We need to encode a LUA data structure using JSON encoding, but in a human readable format, like this:
{ "key1": "data", "key2": 27, "key3":
{ "key3_1": "something", "key3_2": "something
else" }, "key4":
[ "item1", "item2" ]}Please note the indentation for each item in the data structure.
I found for this two libraries written in pure Lua:
The first one seems to be faster for encoding (according to this: http://lua-users.org/wiki/JsonModules), but anyhow much slower than other C-based libraries (like "cjson" already included in OpenResty).
This type of "human readable encoding" (or "pretty encoding") is used only in a few places in our application, so performance is not critical, but the output has to be compatible with the "cjson" library.
What would you recommend?
Thank you
Bogdan
Aapo Talvensaari
Sep 28, 2015, 8:46:16 AM9/28/15
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On 28 September 2015 at 15:37, Bogdan Irimia <bog...@digitair.ro> wrote:
> We need to encode a LUA data structure using JSON encoding, but in a human readable format
How about this:
Bogdan Irimia
Sep 28, 2015, 9:04:42 AM9/28/15
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Wasn't clear for me if it formats the text as we need it.
Aapo Talvensaari wrote:
Aapo Talvensaari wrote:
On 28 September 2015 at 15:37, Bogdan Irimia <bog...@digitair.ro
<mailto:bog...@digitair.ro>> wrote:
> We need to encode a LUA data structureusing JSON encoding, but
in a human readable format
How about this:
https://github.com/bungle/lua-resty-libcjson
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Aapo Talvensaari
Sep 28, 2015, 9:37:28 AM9/28/15
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On Monday, 28 September 2015 16:04:42 UTC+3, bogdan wrote:
Wasn't clear for me if it formats the text as we need it.
Wasn't clear for me if it formats the text as we need it.
It is easy to test:
print(json.encode({
key1 = "data",
key2 = 27,
key3 = {
key3_1 = "something",
key3_2 = "something else"
},
key4 = {
"item1",
"item2"
}
}, true)) This will output:
{
"key1": "data",
"key3": {
"key3_1": "something",
"key3_2": "something else"
},
"key2": 27,
"key4": ["item1", "item2"]
}Not sure though if this is what you wanted as ut seems you like to have each array item on their own line.
Regards
Aapo
Bogdan Irimia
Sep 28, 2015, 9:39:05 AM9/28/15
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It'll do with arrays on
one line. I tested it, works pretty ok for what we need.
Thank you
Thank you
Monday, September 28, 2015 4:37 PM via Postbox
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Monday, September 28, 2015 4:04 PM via Postbox
Wasn't clear for me if it formats the text as we need it.
Aapo Talvensaari wrote:
Monday, September 28, 2015 3:45 PM via Postbox> We need to encode a LUA data structure using JSON encoding, but in a human readable format
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Monday, September 28, 2015 3:37 PM via Postbox
Hello, everybody
We need to encode a LUA data structure using JSON encoding, but in a human readable format, like this:
{"key1":"data","key2":27,
"key3": {"key3_1":"something","key3_2":"something else"},
"key4": ["item1","item2"]}
Please note the indentation for each item in the data structure.
I found for this two libraries written in pure Lua:
The first one seems to be faster for encoding (according to this: http://lua-users.org/wiki/JsonModules), but anyhow much slower than other C-based libraries (like "cjson" already included in OpenResty).
This type of "human readable encoding" (or "pretty encoding") is used only in a few places in our application, so performance is not critical, but the output has to be compatible with the "cjson" library.
What would you recommend?
Thank you
Bogdan
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Aapo Talvensaari
Sep 28, 2015, 1:02:55 PM9/28/15
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On Monday, 28 September 2015 16:39:05 UTC+3, bogdan wrote:
It'll do with arrays on one line. I tested it, works pretty ok for what we need
You may also check this:
I just wrote a simple pretty formatter for Lua cJSON in Lua (no extra dependencies). This does excatly what you wanted.
Stefan Parvu
Sep 28, 2015, 1:46:40 PM9/28/15
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10 x thanks. We will use that, less dependencies and no need for extra
binaries, shared libs.
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Stefan Parvu <spa...@kronometrix.org>
binaries, shared libs.
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Stefan Parvu <spa...@kronometrix.org>
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