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import "highlight.js/styles/github.css";
let did_register_html = false;
let did_register_js = false;
let did_register_sh = false;
let did_register_gleam = false;
export async function highlight_element(el, lang) {
if (el.classList.contains("hljs")) return;
const { default: highlight } = await import("highlight.js/lib/core");
switch (lang) {
case !did_register_html && "html":
const { default: html } = await import("highlight.js/lib/languages/xml");
highlight.registerLanguage("html", html);
did_register_html = true;
break;
case !did_register_js && "javascript":
const { default: js } = await import(
"highlight.js/lib/languages/javascript"
);
highlight.registerLanguage("javascript", js);
did_register_js = true;
break;
case !did_register_sh && "shell":
const { default: sh } = await import("highlight.js/lib/languages/shell");
highlight.registerLanguage("sh", sh);
highlight.registerLanguage("shell", sh);
did_register_sh = true;
break;
case !did_register_gleam && "gleam":
highlight.registerLanguage("gleam", gleam);
did_register_gleam = true;
break;
}
highlight.highlightElement(el);
}
function gleam(hljs) {
const KEYWORDS =
"as assert case const fn if import let panic use opaque pub todo type";
const STRING = {
className: "string",
variants: [{ begin: /"/, end: /"/ }],
contains: [hljs.BACKSLASH_ESCAPE],
relevance: 0,
};
const NAME = {
className: "variable",
begin: "\\b[a-z][a-z0-9_]*\\b",
relevance: 0,
};
const DISCARD_NAME = {
className: "comment",
begin: "\\b_[a-z][a-z0-9_]*\\b",
relevance: 0,
};
const NUMBER = {
className: "number",
variants: [
{
// binary
begin: "\\b0[bB](?:_?[01]+)+",
},
{
// octal
begin: "\\b0[oO](?:_?[0-7]+)+",
},
{
// hex
begin: "\\b0[xX](?:_?[0-9a-fA-F]+)+",
},
{
// dec, float
begin: "\\b\\d(?:_?\\d+)*(?:\\.(?:\\d(?:_?\\d+)*)*)?",
},
],
relevance: 0,
};
return {
name: "Gleam",
aliases: ["gleam"],
contains: [
hljs.C_LINE_COMMENT_MODE,
STRING,
{
// bit string
begin: "<<",
end: ">>",
contains: [
{
className: "keyword",
beginKeywords:
"binary bytes int float bit_string bits utf8 utf16 utf32 " +
"utf8_codepoint utf16_codepoint utf32_codepoint signed unsigned " +
"big little native unit size",
},
KEYWORDS,
STRING,
NAME,
DISCARD_NAME,
NUMBER,
],
relevance: 10,
},
{
className: "function",
beginKeywords: "fn",
end: "\\(",
excludeEnd: true,
contains: [
{
className: "title",
begin: "[a-z][a-z0-9_]*\\w*",
relevance: 0,
},
],
},
{
className: "attribute",
begin: "@",
end: "\\(",
excludeEnd: true,
},
{
className: "keyword",
beginKeywords: KEYWORDS,
},
{
// Type names and constructors
className: "title",
begin: "\\b[A-Z][A-Za-z0-9]*\\b",
relevance: 0,
},
{
className: "operator",
begin: "[+\\-*/%!=<>&|.]+",
relevance: 0,
},
NAME,
DISCARD_NAME,
NUMBER,
],
};
}
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