passing structures to render_template_file()

[Andy Alt]

Nothing I need, but I wonder if an option to pass a structure would be a good idea at some point.

[Dan Kelly]

TBH, I am not even sure if this is possible using c, maybe c11?. I will certainly look into it more as I am sure it would be preferable. If you find any resources, definitely share them! Would like to stay as native with little dependencies as possible!

[Andy Alt]

Passing structures? Yeah... Although they might have to passed as pointers... I haven't done it for a while.

In fact, here's an example where an array of structures is passed:
https://github.com/andy5995/nettail/blob/aaf3268fd4a026a6cbe608993cfc074ea07a0b12/src/nettail-server.c#L135

As for having a variable list of arguments... Well.. printf() can do it, so I assume that writing a function that can take a variable list of args would be rather easy.

No special libraries required.

[Dan Kelly]

Sorry, I should have been more clear. It is not possible to enumerate member names of a struct in order to match the template variables to the struct members or vise-versa.

Maybe I misunderstood, you mean like this?

struct template_vars { const char* item_name, const char* item_value };
struct template_vars item_list[] = { 
    "data.key", "replacement",
    "data.key2", "replacement2",
    ....
};
render_template("My {{data.key}} template {{data.key2}}", 2, item_list);

That should be relatively straight forward and cuts down on some variable required. I might just do that anyways as a function override. I'm all for cutting the lines of code down for users :)

[Andy Alt]

Oh, looks like I gave you a good idea without meaning to! Great! :D

But what I meant is a situation in which an end-user's program is using a structure to hold data, as opposed to using only arrays (like in mhwkb).

So render_template_file() (from develop) could accept a structure as an argument, as well as arrays.

Sorry, I should have been more clear. It is not possible to enumerate member names of a struct in order to match the template variables to the struct members or vise-versa.

I didn't fully understand this, but that's all right. Perhaps it's time my part of this discussion ended. ;)

[Dan Kelly]

Closing and opening a new issue for passing a structured array as described in #35 (comment)