@thi.ng/transclude/tpl/file.js

Extensible functional template engine for text document generation, incl. various high-level Markdown features

import { illegalArgs } from "@thi.ng/errors/illegal-arguments";
import { readText } from "@thi.ng/file-io/text";
import { basename, resolve } from "node:path";
const includeFile = ({ logger }, args, currPath) => readText(resolve(resolve(currPath, ".."), args[2].trim()), logger);
const preincludeFile = ({ logger }, [src], initialPath) => {
  const pattern = /<!-- include (.+) -->/g;
  const fileCache = {};
  const replaceImport = (includePath, currPath, route) => {
    includePath = resolve(resolve(currPath, ".."), includePath.trim());
    if (fileCache[includePath]) return fileCache[includePath];
    if (route.includes(includePath))
      illegalArgs(
        `include cycle detected: ${basename(currPath)} -> ${basename(
          includePath
        )}`
      );
    src = readText(includePath, logger).replace(
      pattern,
      (_, path) => replaceImport(path, includePath, [...route, path])
    );
    return fileCache[includePath] = src;
  };
  return src.replace(
    pattern,
    (_, path) => replaceImport(path, initialPath, [initialPath])
  );
};
export {
  includeFile,
  preincludeFile
};