Function detectDelimiter

detectDelimiter(lines: string[], candidates?: string[]): string | null
Detect the delimiter used in DSV content

Uses heuristics to determine the most likely delimiter:
- Consistency across rows
- Average field count
- Low variance in field counts
Parameters
- lines: string[]
  Sample lines from the file
- candidates: string[] = ...
  Delimiters to test (defaults to common DSV delimiters)
Returns string | null
The detected delimiter or null if detection fails
- Defined in src/formats/dsv/detection.ts:23