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Add charset function #12

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Add charset function #12

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valadaptive Jul 20, 2025
2e9cc7e
Add `charset` function
valadaptive Jul 20, 2025
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21 changes: 14 additions & 7 deletions bin/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -80,16 +80,20 @@ for (mtype in DB) {
}

let mimes: Record<string, string> = {};
Object.keys(raw).sort().forEach(x => {
mimes[x] = raw[x];
let charsets: Record<string, string> = {};
Object.entries(raw).sort((a, b) => a[1].localeCompare(b[1])).forEach(x => {
mimes[x[0]] = x[1];
if (!x[1].startsWith('text/') && DB[x[1]].charset) {
charsets[x[1]] = DB[x[1]].charset;
}
});

let content = fs.readFileSync(input, 'utf8').replace(
'{}', JSON.stringify(mimes, null, 2)
) + '\n';
let content = fs.readFileSync(input, 'utf8')
.replace('const mimes = {}', `const mimes = ${JSON.stringify(mimes, null, 2)}`)
.replace('const charsets = {}', `const charsets = ${JSON.stringify(charsets, null, 2)}`) + '\n';

let esm = content + 'export { mimes, lookup };\n';
let cjs = content + 'exports.mimes = mimes;\nexports.lookup = lookup;\n';
let esm = content + 'export { mimes, lookup, charset };\n';
let cjs = content + 'exports.mimes = mimes;\nexports.lookup = lookup;\nexports.charset = charset;\n';

// build exports
write('index.mjs', esm);
Expand All @@ -107,6 +111,9 @@ write('deno/mod.ts', esm.replace(
).replace(
'const mimes = {',
'const mimes: Record<string, string> = {',
).replace(
'function charset(mimetype) {',
'function charset(mimetype: string): string | undefined {',
));

if (!process.env.CI) {
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