syntax: "\" is not a unary operator
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$f(x) =
\oint_{
x \in \mathbb{R}
}
\frac{
1 + ⠀
}{
⠁ + x
}
$
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UndefVarError: x not defined
Here is what happened, the most recent locations are first:
- from This cell: line 1
x
this suckz 💣
x
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You can use inside markdown!
let
sl = @tex("Slotted\\LaTeX")
md"""
You can use $(sl) inside markdown!
$(cool)
"""
end
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using HypertextLiteral
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using PlutoUI
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tex (generic function with 2 methods)begin
macro tex(x)
tex(x)
end
# `_str` macros with interpolation are not reactive in pluto 🙈 until https://github.com/fonsp/Pluto.jl/pull/1032 is fixed. :((
#macro tex_str(_x::String)
# x = Meta.parse("\"" * _x * "\"")
# tex(x)
#end
function tex(ex::Expr)
@assert ex.head === :string
if ex.args[1] isa String
parts = String[ex.args[1]]
slots = Any[]
else
parts = ["\\hspace{0pt}"]
slots = [ex.args[1]]
end
for x in ex.args[2:end]
if x isa String
all(==(' '), x) ? push!(parts, "\\hspace{0pt}") : push!(parts, x)
else
length(parts) != length(slots) + 1 && push!(parts, "\\hspace{0pt}")
push!(slots, x)
end
end
if length(slots) == length(parts)
push!(parts, "\\hspace{0pt}")
end
quote
SlottedLaTeX(
parts = $parts,
slots = [$(esc.(slots)...)],
)
end
end
function tex(x::String)
SlottedLaTeX(
parts=[x],
slots=[],
)
end
end
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quote
#= /home/runner/work/disorganised-mess/disorganised-mess/katex fun.jl#==#6d43f0c4-2475-44e5-9365-d717f98e3bba:31 =#
Main.workspace#4.SlottedLaTeX(parts = ["\\frac{1 + ", "}{", " + x}"], slots = [π ^ 2, Scrubbable(5)])
end@macroexpand @tex("""\\frac{1 + $(π^2)}{$(Scrubbable(5)) + x}""")
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smalldog = html"""
<img src='https://user-images.githubusercontent.com/6933510/116753174-fa40ab80-aa06-11eb-94d7-88f4171970b2.jpeg' height=30px>"""
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begin
Base.@kwdef struct SlottedLaTeX
parts::Vector{String}
slots::Vector{Any}
# displaymode::Bool=true
end
function Base.show(io::IO, m::MIME"text/html", sl::SlottedLaTeX)
h = @htl("""
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.15.3/dist/katex.min.css" crossorigin="anonymous">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.15.3/dist/contrib/copy-tex.min.css" crossorigin="anonymous">
<style>
.katex .base,
.katex .strut {
/*display: inline-flex !important;*/
pointer-events: none;
}
.SlottedLaTeX {
font-size: .75em;
}
.SlottedLaTeX .slot {
pointer-events: initial;
}
</style>
<script src="https://cdn.jsdelivr.net/npm/katex@0.15.3/dist/katex.min.js" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/katex@0.15.3/dist/contrib/copy-tex.min.js" crossorigin="anonymous"></script>
<span class="SlottedLaTeX-slots" style="display: none;">
$(
map(sl.slots) do s
@htl("<span class='slot'>$(s)</span>")
end
)
</span>
<script>
// https://unicode-table.com/en/#2800
const braille_start = 10240
// https://unicode-table.com/en/#03B1
const greek_start = 945
const placeholder = (i) => String.fromCodePoint(braille_start + i)
const placeholder_index = (s) => s.codePointAt(0) - braille_start
const k = (segments, ...slots) => {
const mock = [...slots.flatMap((_, i) => [segments[i], placeholder(i)]), segments[segments.length-1]].join("")
const el = html`<span class='SlottedLaTeX'></span>`
katex.render(mock, el, {
displayMode: currentScript.closest("p") == null,
})
Array.from(el.querySelectorAll("span")).forEach(span => {
const t = span.innerText
if(t.length === 1) {
const i = placeholder_index(t)
if(0 <= i && i < slots.length) {
span.replaceWith(slots[i])
}
}
})
return el
}
const parts = $(sl.parts)
console.log(parts)
const slots = Array.from(currentScript.previousElementSibling.children)
console.log(slots)
return k(parts, ...slots)
</script>
""")
Base.show(io, m, h)
end
end
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