Function markNodeModules

lib/internal/util/inspect.js:1852–1895

(ctx, line)

}

function markNodeModules(ctx, line) {
  let tempLine = '';
  let lastPos = 0;
  let searchFrom = 0;

  while (true) {
    const nodeModulePosition = StringPrototypeIndexOf(line, 'node_modules', searchFrom);
    if (nodeModulePosition === -1) {
      break;
    }

    // Ensure it's a path segment: must have a path separator before and after
    const separator = line[nodeModulePosition - 1];
    const after = line[nodeModulePosition + 12]; // 'node_modules'.length === 12

    if ((after !== '/' && after !== '\\') || (separator !== '/' && separator !== '\\')) {
      // Not a proper segment; continue searching
      searchFrom = nodeModulePosition + 1;
      continue;
    }

    const moduleStart = nodeModulePosition + 13; // Include trailing separator

    // Append up to and including '/node_modules/'
    tempLine += StringPrototypeSlice(line, lastPos, moduleStart);

    let moduleEnd = StringPrototypeIndexOf(line, separator, moduleStart);
    if (line[moduleStart] === '@') {
      // Namespaced modules have an extra slash: @namespace/package
      moduleEnd = StringPrototypeIndexOf(line, separator, moduleEnd + 1);
    }

    const nodeModule = StringPrototypeSlice(line, moduleStart, moduleEnd);
    tempLine += ctx.stylize(nodeModule, 'module');

    lastPos = moduleEnd;
    searchFrom = moduleEnd;
  }

  if (lastPos !== 0) {
    line = tempLine + StringPrototypeSlice(line, lastPos);
  }
  return line;
}

function markCwd(ctx, line, workingDirectory) {
  let cwdStartPos = StringPrototypeIndexOf(line, workingDirectory);