Function parseAtMentionedFileLines

src/utils/attachments.ts:2843–2859

(
  mention: string,
)

}

export function parseAtMentionedFileLines(
  mention: string,
): AtMentionedFileLines {
  // Parse mentions like "file.txt#L10-20", "file.txt#heading", or just "file.txt"
  // Supports line ranges (#L10, #L10-20) and strips non-line-range fragments (#heading)
  const match = mention.match(/^([^#]+)(?:#L(\d+)(?:-(\d+))?)?(?:#[^#]*)?$/)

  if (!match) {
    return { filename: mention }
  }

  const [, filename, lineStartStr, lineEndStr] = match
  const lineStart = lineStartStr ? parseInt(lineStartStr, 10) : undefined
  const lineEnd = lineEndStr ? parseInt(lineEndStr, 10) : lineStart

  return { filename: filename ?? mention, lineStart, lineEnd }
}

async function getDiagnosticAttachments(
  toolUseContext: ToolUseContext,