{"record":{"id":"b7312d19c6a2bb3e","repo":"kubernetes/kops","slug":"stringslicevalue-q-w","errorCode":null,"errorMessage":"stringSliceValue %q: %w","messagePattern":"stringSliceValue %q: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"cmd/kops/flags_stringslice_lazyquotes.go","lineNumber":73,"sourceCode":"\tcsvReader.LazyQuotes = lazyQuotes\n\treturn csvReader.Read()\n}\n\nfunc writeAsCSV(vals []string) (string, error) {\n\tb := &bytes.Buffer{}\n\tw := csv.NewWriter(b)\n\terr := w.Write(vals)\n\tif err != nil {\n\t\treturn \"\", err\n\t}\n\tw.Flush()\n\treturn strings.TrimSuffix(b.String(), \"\\n\"), nil\n}\n\nfunc (s *lazyQuoteStringSliceValue) Set(val string) error {\n\tv, err := readAsCSV(val, s.lazyQuotes)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"stringSliceValue %q: %w\", val, err)\n\t}\n\tif !s.changed {\n\t\t*s.value = v\n\t} else {\n\t\t*s.value = append(*s.value, v...)\n\t}\n\ts.changed = true\n\treturn nil\n}\n\nfunc (s *lazyQuoteStringSliceValue) Type() string {\n\treturn \"stringSlice\"\n}\n\nfunc (s *lazyQuoteStringSliceValue) String() string {\n\tstr, _ := writeAsCSV(*s.value)\n\treturn \"[\" + str + \"]\"\n}","sourceCodeStart":55,"sourceCodeEnd":91,"githubUrl":"https://github.com/kubernetes/kops/blob/4c8573c808a73d578c5eadc86d410646ea0b0d73/cmd/kops/flags_stringslice_lazyquotes.go#L55-L91","documentation":"lazyQuoteStringSliceValue.Set parses the incoming comma-separated flag value as CSV (supporting lazy quotes when configured) via readAsCSV; any csv.Reader parse failure is wrapped as `stringSliceValue \"<val>\": <err>`. This catches malformed quoting such as an unbalanced or stray double-quote inside the flag value.","triggerScenarios":"Setting a pflag string-slice flag (e.g. --node-labels-like list flags in kops) with a value containing an unclosed quote, e.g. --flag 'a,\"b' — encoding/csv returns ErrBareQuote/ErrQuote and Set wraps it.","commonSituations":"Users quoting values inside comma lists like key:\"some value without close; shell escaping stripping quotes before Go sees them; copy-pasting examples where quotes were meant for the shell, not CSV.","solutions":["Balance the quotes in the value or remove them: --flag a,b,c","Escape embedded quotes properly, e.g. --flag 'a,\"b\"' so CSV parses them","If the value legitimately contains commas/quotes, check whether the flag supports repeated use: --flag a --flag b","Inspect the wrapped %w error message — it names the exact CSV offset of the bad quote"],"exampleFix":"// before\nkops create cluster ... --cloud-labels 'owner=\"team,env=dev'\n// after\nkops create cluster ... --cloud-labels 'owner=team,env=dev'","handlingStrategy":"validation","validationCode":"func balancedQuotes(s string) error {\n    inQuote := false\n    for i, r := range s {\n        if r == '\"' {\n            if inQuote && i > 0 && s[i-1] == '\\\\' { continue }\n            inQuote = !inQuote\n        }\n    }\n    if inQuote {\n        return fmt.Errorf(\"unbalanced quote in value %q\", s)\n    }\n    return nil\n}","typeGuard":null,"tryCatchPattern":"if err := cmd.Flags().Set(\"cloud-labels\", val); err != nil {\n    var wrapped *fmt.WrapError\n    if strings.Contains(err.Error(), \"stringSliceValue\") {\n        // value failed CSV parsing: check quoting\n    }\n}","preventionTips":["Treat string-slice flag values as CSV: quotes must be balanced","Quote at the shell level, not inside the value, unless a value truly contains a comma","Use repeated flags (--flag a --flag b) instead of complex quoting","Prefer key=value without embedded quotes for label-style flags"],"tags":["flags","csv","parsing"],"backgroundTag":"csv-parsing-error","analyzedSha":"4c8573c808a73d578c5eadc86d410646ea0b0d73","analyzedAt":"2026-09-05T04:13:19.212Z","contentChangedAt":"2026-09-05T04:13:19.212Z","schemaVersion":2},"datasetVersion":"2026-09-12T12:17:11.808Z"}