app/lib/content/wide-dash.mjs

Functions

Imports

It imports no other module of this repo. Imported by app/lib/content/pipeline.mjs, app/lib/cv/validate.mjs.

Source

1// The house style's no-wide-dash rule, as one function: the content pipeline, the CV validator and the page
2// compile all hold text to it. Dependency-free on purpose, so a validator can import it without the renderer.
3
4// Escapes, so this file stays clean under the no-em-dash rule. U+2010 to U+2015 plus U+2212.
5const WIDE_DASH = /[\u2010-\u2015\u2212]/g;
6
7/**
8 * Server-side half of the no-em-dash rule: a commit through the GitHub API never meets the local hook.
9 *
10 * @param {string} text
11 * @returns {Array<{ line: number, column: number, char: string, excerpt: string }>}
12 */
13export function findWideDashes(text) {
14  /** @type {Array<{ line: number, column: number, char: string, excerpt: string }>} */
15  const hits = [];
16  const lines = text.split("\n");
17  lines.forEach((line, i) => {
18    WIDE_DASH.lastIndex = 0;
19    let match;
20    while ((match = WIDE_DASH.exec(line)) !== null) {
21      hits.push({
22        line: i + 1,
23        column: match.index + 1,
24        char: `U+${match[0].codePointAt(0)?.toString(16).toUpperCase().padStart(4, "0")}`,
25        excerpt: line.slice(Math.max(0, match.index - 30), match.index + 30).trim(),
26      });
27    }
28  });
29  return hits;
30}