inancgumus/learngo · error

wrong input: %q (line #%d)

Error message

wrong input: %q (line #%d)

What it means

Exercise variant of parse(): rejects the visits column when Atoi fails or yields a negative number; %q shows the offending token and p.lines identifies the log line. The error propagates to main, which terminates the program.

Source

Thrown at 26-pointers/exercises/05-log-parser/parser.go:49

	parsed.domain = fields[0]

	parsed.visits, err = strconv.Atoi(fields[1])
	if parsed.visits < 0 || err != nil {
		err = fmt.Errorf("wrong input: %q (line #%d)", fields[1], p.lines)
		return
	}

View on GitHub (pinned to 3c475a78e5)

Solutions

1. Validate the visits token before parsing each line.
2. Skip invalid rows and aggregate the valid ones.
3. Fix the log so visits are non-negative integers.

When it happens

Trigger: Thrown at 26-pointers/exercises/05-log-parser/parser.go:49 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of inancgumus/learngo@3c475a78e5 (2026-09-02). Data as JSON: /api/errors/bf366c8d4b4944a9. Report an issue: GitHub.