New to Openresty

[Saint Michael]

I need to find any list of all the Openresty libraries that I can use 

as in 

local mysql = require "resty.mysql"

as well a general LUA programming boom as it applies to Openresty.  I already saw many generic videos about LUA.

For example, I cannot figure out how to obtain the same functionality of  "continue" in a loop, as found in every other language. I cannot figure out how can I call utility like awk or grep, etc, from inside Openresty-LUA, and send parameters, receive output to a variable. Also, I would like to find a library to convert a database result set to HTML where I can tell exactly how I want the conversion to be done.

Thanks in advance

Saint Michael

[Joseph Mariadassou]

Check out this site for a large list of lua libraries 

https://github.com/bungle/awesome-resty

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[Saint Michael]

I almost completed my project but for this issue

https://github.com/bungle/lua-resty-template/issues/48

can somebody help me understand what am I doing wrong?

[Kshitij Joshi]

Use 

{*expression*} in your html template.

{*expression*} -> writes result of expression

[Saint Michael]

I am trying use this gsub

string:gsub(',',''):gsub("PRCT","%")

basically, I need to eliminate all commas from string and also replace "PRCT" for "%",

but the second part does not work.

What am I doing wrong?

[Joseph Mariadassou]

use %% when you need % as % is a marker 

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[Saint Michael]

I must be blind where is the documentation for that?

What kind of information can I use on the right side?

Is it possible to combine both replacements in one?

Thanks in advance.

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[Joseph Mariadassou]

The Lua book (page 92) gives that info. But a quick google search yielded

https://riptutorial.com/lua/example/20315/lua-pattern-matching

I don't think you can combine them

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[Saint Michael]

Can you give details about the Lua Book whose page 92 has this information?

There are many LUA books. I want to order the one.

Thanks in advance.

Philip

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[Saint Michael]

Question: what library should I use for this: 

I want to retrieve a result set from my database, using resty.mysql, but then I need to convert it to an HTML table, as is, no changes, just get it and send it forward to the client.

What library should I use?

For example, I do a "select * from table", get the result into a variable, and need to convert it to <table>.....</table>.

Is this possible at all?

Thanks in advance

[Aapo Talvensaari]

You could try my resty.template:

https://github.com/bungle/lua-resty-template

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[Saint Michael]

I am already using it, but as raw. 

I build my HTML table at the database. Suppose I don't do that and do an arbitrary select statement on any MySQL table, so I get from LUA:

res[1]["field1","field2"]...

how can translate that into a perfectly formed HTMAL table?

I use resty.mysql for the database

what do I have to add in the template?

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[Joseph Mariadassou]

https://store.feistyduck.com/products/programming-in-lua-fourth-edition-ebook

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[Joseph Mariadassou]

The book I am referring to is by the original developers of Lua. A bit dense but a good reference 

https://www.amazon.com/exec/obidos/ASIN/8590379868/lua-pilindex-20

On Tue, 20 Apr 2021 at 12:43 pm, Saint Michael <ven...@gmail.com> wrote:

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