utils.jl

function hfun_bar(vname)
  val = Meta.parse(vname[1])
  return round(sqrt(val), digits=2)
end

function hfun_m1fill(vname)
  var = vname[1]
  return pagevar("index", var)
end

function lx_baz(com, _)
  # keep this first line
  brace_content = Franklin.content(com.braces[1]) # input string
  # do whatever you want here
  return uppercase(brace_content)
end

"""
    {{blogposts}}
Plug in the list of blog posts contained in the `/blog/` folder.
Taken from the JuliaLang site utils.jl
"""
function hfun_blogposts()
    curyear = year(Dates.today())
    io = IOBuffer()
    for year in curyear:-1:2023
        ys = "$year"
        year < curyear && write(io, "\n**$year**\n")
        for month in 12:-1:1
            ms = "0"^(month < 10) * "$month"
            base = joinpath("requietis", ys, ms)
            isdir(base) || continue
            posts = filter!(p -> endswith(p, ".md"), readdir(base))
            days  = zeros(Int, length(posts))
            lines = Vector{String}(undef, length(posts))
            for (i, post) in enumerate(posts)
                ps  = splitext(post)[1]
                url = "/requietis/$ys/$ms/$ps/"
                surl = strip(url, '/')
                title = pagevar(surl, :title)
                desc = pagevar(surl, :rss_description)
				title === nothing && (title = "Untitled")
                pubdate = pagevar(surl, :published)
                if isnothing(pubdate)
                    date    = "($ms/$ys)"
                    days[i] = 1
                else
                    date    = Date(pubdate, dateformat"d U Y")
                    days[i] = day(date)
                end
                lines[i] = "\n$date [$title]($url) : $desc\n"
            end
            # sort by day
            foreach(line -> write(io, line), lines[sortperm(days, rev=true)])
        end
    end
    # markdown conversion adds `<p>` beginning and end but
    # we want to  avoid this to avoid an empty separator
    r = Franklin.fd2html(String(take!(io)), internal=true)
    return r
end