69 lines
1.9 KiB
TypeScript
69 lines
1.9 KiB
TypeScript
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import { posix } from "path";
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/**
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* Regex to match a fenced code block with a `file="..."` attribute, e.g.:
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*
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* ```csv file="card-data.csv"
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* name, cost, effect
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* Fireball, 1, Blast em
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* ```
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*
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* ```yaml file="monsters.yaml"
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* goblin:
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* hp: 7
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* ```
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*
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* The language identifier is optional — only `file="..."` matters.
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*
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* Group 1: the info string after the opening fence (e.g. `csv file="card-data.csv"`)
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* Group 2: the code block body
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*/
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const INLINE_FILE_BLOCK_RE = /^```\w*\s+file="([^"]+)"(?:\s+\w+="[^"]*")*\s*\n([\s\S]*?)```\s*$/gm;
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/**
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* Process fenced code blocks that contain a `file="..."` attribute.
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*
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* For each block like:
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* ```lang file="card-data.csv"
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* content
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* ```
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*
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* 1. Strips the block from the returned text (so it doesn't render)
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* 2. Injects a synthetic entry into `index` at the resolved file path
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*
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* @param content - Raw file content
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* @param fileRelativePath - Normalized path of the containing file (e.g. "/rules/combat.md")
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* @param index - The content index to inject synthetic entries into
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* @returns Content with inline blocks removed
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*/
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export function extractInlineBlocks(
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content: string,
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fileRelativePath: string,
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index: Record<string, string>,
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): string {
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const matches: { filename: string; body: string }[] = [];
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let match: RegExpExecArray | null;
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INLINE_FILE_BLOCK_RE.lastIndex = 0;
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while ((match = INLINE_FILE_BLOCK_RE.exec(content)) !== null) {
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matches.push({ filename: match[1], body: match[2] });
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}
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if (matches.length === 0) return content;
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const stripped = content.replace(INLINE_FILE_BLOCK_RE, "");
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for (const { filename, body } of matches) {
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const fileDir = posix.dirname(fileRelativePath);
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const resolvedPath = posix.join(fileDir, filename);
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index[resolvedPath] = body;
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console.log(
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`[inline] Extracted ${resolvedPath} from ${fileRelativePath}`,
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);
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}
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return stripped;
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}
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