Function dietTraits

A traits struct can contain any of the following:

• string translate(string) - A function that takes a string and returns the translated version of that string. This is used for translating the text of nodes marked with & at compile time. Note that the input string may contain string interpolations.
• void filterX(string) - Any number of compile-time filter functions, where "X" is a placeholder for the actual filter name. The first character will be converted to lower case, so that a function filterCss will be available as :css within the Diet template.
• SafeFilterCallback[string] filters - A dictionary of runtime filter functions that will be used to for filter nodes that don't have an available compile-time filter or contain string interpolations.
• alias processors = AliasSeq!(...) - A list of callables taking a Document to modify its contents
• HTMLOutputStyle htmlOutputStyle - An enum to configure the output style of the generated HTML, e.g. compact or pretty

Example

import diet.html : compileHTMLDietString;
import std.array : appender, array;
import std.string : toUpper;

@dietTraits
static struct CTX {
	static string translate(string text) {
		return text == "Hello, World!" ? "Hallo, Welt!" : text;
	}

	static string filterUppercase(I)(I input) {
		return input.toUpper();
	}
}

auto dst = appender!string;
dst.compileHTMLDietString!("p& Hello, World!", CTX);
assert(dst.data == "<p>Hallo, Welt!</p>");

dst = appender!string;
dst.compileHTMLDietString!(":uppercase testing", CTX);
assert(dst.data == "TESTING");
}


/** Translates a line of text based on the traits passed to the Diet parser.

The input text may contain string interpolations of the form `#{...}` or
`!{...