Function extractImportSpecifiers

src/context/import-graph.ts:49–84

(content: string, lang: string)

/** Extract raw import specifiers from source. Regex-based (fast, language-agnostic enough). */
export function extractImportSpecifiers(content: string, lang: string): string[] {
  const specs: string[] = [];
  const push = (s: string | undefined) => { if (s) specs.push(s); };

  if (lang === 'python') {
    // from X import ... / import X
    const re = /^\s*(?:from\s+([.\w]+)\s+import|import\s+([.\w]+))/gm;
    let m: RegExpExecArray | null;
    while ((m = re.exec(content)) !== null) push(m[1] ?? m[2]);
    return specs;
  }
  if (lang === 'go') {
    const re = /"([^"]+)"/g; // crude: import block strings
    const block = /import\s*\(([\s\S]*?)\)/.exec(content);
    const src = block ? block[1]! : content;
    let m: RegExpExecArray | null;
    while ((m = re.exec(src)) !== null) push(m[1]);
    return specs;
  }
  if (lang === 'rust') {
    const re = /^\s*(?:use|mod)\s+([\w:]+)/gm;
    let m: RegExpExecArray | null;
    while ((m = re.exec(content)) !== null) push(m[1]?.split('::')[0]);
    return specs;
  }
  // JS/TS/PHP/etc: import ... from 'x', require('x'), dynamic import('x')
  const reFrom = /(?:import|export)\s[^'"]*?from\s*['"]([^'"]+)['"]/g;
  const reBare = /import\s*['"]([^'"]+)['"]/g; // side-effect import 'x'
  const reReq = /require\(\s*['"]([^'"]+)['"]\s*\)/g;
  const reDyn = /import\(\s*['"]([^'"]+)['"]\s*\)/g;
  for (const re of [reFrom, reBare, reReq, reDyn]) {
    let m: RegExpExecArray | null;
    while ((m = re.exec(content)) !== null) push(m[1]);
  }
  return specs;
}

function detectLang(file: string): string {
  const ext = path.extname(file).toLowerCase();