Support escaping startTags (and endTags) in the template

[mashedkeyboard]

Hey, thanks for this awesome library!

At present, there is no way to include a startTag in the template string without the engine picking up on it as a tag:

fasttemplate/template.go

Line 31 in 05015c3

n := bytes.Index(s, a)

I'd like to use this with some user defined templates, where there might well be a use case for them having whatever character I choose for the startTag in their template string proper. Using backslashes to escape would be the obvious option, but there's currently no functionality for anything of this sort in the library as far as I can see - so consider this a feature request :)

Cheers!

[markuschaaf]

This is not needed. You can reserve a special insert name (e.g. the empty one) for the start-tag. Like this:

t := fasttemplate.New( "How to escape the $$-tag?", "$", "$" )
t.Execute( os.Stdout, map[ string ] interface{} { "": "$" })