Okiki Ojo @okikio@mastodon.social
Public

Got annoyed by weird indentation issues with multiline strings, so I made `@okikioOkiki Ojo/undent`, a tiny dedent utility for template literals.

Strips leading spaces from multiline strings fixing the formatting...it's designed to be versatile and flexible.

`@okikioOkiki Ojo/undent` preserves newlines, handles interpolations, and avoids the usual formatting bugs. Zero dependencies + works in Node, Deno, and Bun.

github: github.com/okikio/undent
npm: npmjs.com/@okikio/undent
jsr: jsr.io/@okikio/undent

/1

import { align, undent } from "@okikio/undent"; // + = space (shown explicitly to make indentation visible) // align() — multi-line values stay at their insertion column | const items = "- alpha\n- beta\n- gamma"; // without align() console.log(undent" list: S{items} end ND) // list: // --- alpha // - beta « snaps to column © // - gamma // end // with align() console.log(undent" list: ${align(items)} end ND) // list: // --- alpha // --- beta « stays at insertion column // --- gamma // end import { embed, undent } from "@okikio/undent"; // + = space (shown explicitly to make indentation visible) // embed() — strip a value's own indent, then align it | const sql = ° SELECT id, name FROM users WHERE active = true // without embed() console.log(undent" query: ${sql} Df // query: // ----SELECT-id, ‘name « baked-in indent bleeds through // ----FROM-- -users // ----WHERE--active-=-true // // with embed() console.log(undent" query: ${embed(sql)} Df // query: // --SELECT-id, -name // --FROM-- -users // --WHERE--active-=-true import { indent, undent } from "@okikio/undent"; // + = space (shown explicitly to make indentation visible) // indent anchor — explicit column-0 baseline | // without anchor — content deeper than min indent keeps its relative offset console.log(undent" if (ready) { run(); } ND) // if: (ready) -{ // --run(); /1} // with anchor — anchor column becomes column 0; content deeper than anchor keeps offset console.log(undent" ${indent} if (ready) { run(); } ND) // --if- (ready) -{ « 2 cols deeper than anchor, preserved // ----run(); l/l} import { align, undent } from "@okikio/undent"; // + = space (shown explicitly to make indentation visible) // newline support — \r\n and \r pass through untouched | const crlf = "A\r\nB\r\nC"; // with undent + align — CRLF in values is never touched console.log(JSON.stringify(undent prefix\n${align(crlf)} )); // "prefix\nA\r\nB\r\nC" // 6. Trim modes — per-side, fine-grained control // default: "all" - strips all blank wrapper lines console.log(JSON.stringify(undent"’ hello 9) // "hello" // "none" - keeps blank lines at both ends console.log(JSON.stringify(undent.with({ trim: "none" })° hello 9) // "\nhello\n" // "one" — strips at most one blank line from each end console.log(JSON.stringify(undent.with({ trim: "one" })° hello 9) // "hello" // per-side: keep leading blank, strip trailing console.log(JSON.stringify(undent.with({ trim: { leading: "none", trailing: "all" } })° hello 9) // "\nhello"
0
0
0

If you have a fediverse account, you can quote this note from your own instance. Search https://mastodon.social/users/okikio/statuses/116107922637513556 on your instance and quote it. (Note that quoting is not supported in Mastodon.)