107 lines
3.7 KiB
Racket
107 lines
3.7 KiB
Racket
#lang at-exp racket/base
|
||
(require racket/string)
|
||
|
||
(provide katex-convert-unicode)
|
||
|
||
(define (literal-alternatives→regexp literal-alternatives)
|
||
(string-append "("
|
||
(string-join (map regexp-quote literal-alternatives) "|")
|
||
")"))
|
||
|
||
(define (string-replace* str mathmode? sym→*)
|
||
(define →* (map (λ (x)
|
||
(cons (symbol->string (car x))
|
||
(cadr x)))
|
||
sym→*))
|
||
(define hash→* (make-immutable-hash →*))
|
||
(regexp-replace* (literal-alternatives→regexp (map car →*))
|
||
str
|
||
(λ (found . _)
|
||
(let ([replacement (hash-ref hash→* found)])
|
||
(if mathmode?
|
||
replacement
|
||
(string-append "$" replacement "$"))))))
|
||
|
||
(define (katex-convert-unicode str mathmode?)
|
||
(if (string? str)
|
||
(string-replace*
|
||
str
|
||
mathmode?
|
||
`([₀ "{}_0"]
|
||
[₁ "{}_1"]
|
||
[₂ "{}_2"]
|
||
[₃ "{}_3"]
|
||
[₄ "{}_4"]
|
||
[₅ "{}_5"]
|
||
[₆ "{}_6"]
|
||
[₇ "{}_7"]
|
||
[₈ "{}_8"]
|
||
[₉ "{}_9"]
|
||
[ᵢ "{}_i"]
|
||
[ⱼ "{}_j"]
|
||
[ₖ "{}_k"]
|
||
[ₗ "{}_l"]
|
||
[ₘ "{}_m"]
|
||
[ₙ "{}_n"]
|
||
[ₒ "{}_o"]
|
||
[ₓ "{}_x"]
|
||
[⁰ "{}^0"]
|
||
[¹ "{}^1"]
|
||
[² "{}^2"]
|
||
[³ "{}^3"]
|
||
[⁴ "{}^4"]
|
||
[⁵ "{}^5"]
|
||
[⁶ "{}^6"]
|
||
[⁷ "{}^7"]
|
||
[⁸ "{}^8"]
|
||
[⁹ "{}^9"]
|
||
[ⁱ "{}^i"]
|
||
[ʲ "{}^j"]
|
||
[ᵏ "{}^k"]
|
||
[ˡ "{}^l"]
|
||
[ᵐ "{}^m"]
|
||
[ⁿ "{}^n"]
|
||
[ᵒ "{}^o"]
|
||
[⊆ "\\subseteq{}" "\\ensuremath{\\subseteq}"]
|
||
[⊂ "\\subset{}" "\\ensuremath{\\subset}"]
|
||
[⊇ "\\supseteq{}" "\\ensuremath{\\supseteq}"]
|
||
[⊃ "\\supset{}" "\\ensuremath{\\supset}"]
|
||
[→ "\\rightarrow{}" "\\ensuremath{\\rightarrow}"]
|
||
[⇒ "\\Rightarrow{}" "\\ensuremath{\\Rightarrow}"]
|
||
[← "\\leftarrow{}" "\\ensuremath{\\leftarrow}"]
|
||
[⇐ "\\Leftarrow{}" "\\ensuremath{\\Leftarrow}"]
|
||
[↔ "\\leftrightarrow{}" "\\ensuremath{\\leftrightarrow}"]
|
||
[⇔ "\\Leftrightarrow{}" "\\ensuremath{\\Leftrightarrow}"]
|
||
;; Partially extracted from my .XCompose generator
|
||
[ñ "\\tilde{n}" "{\\ifmmode\\tilde{n}\\else\\~{n}\\fi}"]
|
||
[Ñ "\\tilde{N}" "{\\ifmmode\\tilde{N}\\else\\~{N}\\fi}"]
|
||
[⋆ "\\star{}" "\\ensuremath{\\star}"]
|
||
[⍣ "\\ddot{\\star}}" "\\ensuremath{\\ddot{\\star}}"]
|
||
[⃰ "^*" "^*"]
|
||
[⟨ "\\langle{}" "\\ensuremath{\\mathsmaller{\\raisemath{.15ex}{\\langle}}}"]
|
||
[⟩ "\\rangle{}" "\\ensuremath{\\mathsmaller{\\raisemath{.15ex}{\\rangle}}}"]
|
||
[⋯ "\\cdots{}"]
|
||
[⋮ "\\vdots{}"]
|
||
[⋰ "\\iddots{}"]
|
||
[⋱ "\\ddots{}"]
|
||
[⧺ "\\mathbin{+\\mkern-6.5mu+}" "\\ensuremath{\\mathbin{+\\mkern-6.5mu+}}"]
|
||
[∅ "\\emptyset{}" "\\ensuremath{\\emptyset}"]
|
||
[ı⃗ "\\vec{\\i}}" "\\ensuremath{\\vec{\\i}"]
|
||
[⊕ "\\oplus{}" "\\ensuremath{\\oplus}"]
|
||
[⊖ "\\ominus{}" "\\ensuremath{\\ominus}"]
|
||
[⋓ "\\Cup{}" "\\ensuremath{\\Cup}"]
|
||
;[ₗ "\\ensuremath{_{l}}"]
|
||
[∷ "::"]
|
||
[Λ "\\Lambda{}" "\\ensuremath{\\Lambda}"]
|
||
[∀ "\\forall{}"]
|
||
[∃ "\\exists{}"]
|
||
[≡ "\\equiv{}"]
|
||
[≢ "\\not\\equiv{}"]
|
||
[… "\\ldots{}"]
|
||
[⋯ "\\cdots{}"]
|
||
[⋰ "\\uddots{}"] ;; or \iddots from package mathdots, see http://tex.stackexchange.com/a/17650
|
||
[⋱ "\\ddots{}"]
|
||
[∌ "\\notni{}"]
|
||
[ℰ "\\mathcal{E}"]
|
||
))
|
||
str)) |