diff options
Diffstat (limited to 'vendor/github.com/pelletier/go-toml/tomltree_write.go')
-rw-r--r-- | vendor/github.com/pelletier/go-toml/tomltree_write.go | 151 |
1 files changed, 117 insertions, 34 deletions
diff --git a/vendor/github.com/pelletier/go-toml/tomltree_write.go b/vendor/github.com/pelletier/go-toml/tomltree_write.go index 198d5ac174..2d6487ede4 100644 --- a/vendor/github.com/pelletier/go-toml/tomltree_write.go +++ b/vendor/github.com/pelletier/go-toml/tomltree_write.go @@ -5,6 +5,7 @@ import ( "fmt" "io" "math" + "math/big" "reflect" "sort" "strconv" @@ -27,23 +28,35 @@ type sortNode struct { // Encodes a string to a TOML-compliant multi-line string value // This function is a clone of the existing encodeTomlString function, except that whitespace characters // are preserved. Quotation marks and backslashes are also not escaped. -func encodeMultilineTomlString(value string) string { +func encodeMultilineTomlString(value string, commented string) string { var b bytes.Buffer - - for _, rr := range value { + adjacentQuoteCount := 0 + + b.WriteString(commented) + for i, rr := range value { + if rr != '"' { + adjacentQuoteCount = 0 + } else { + adjacentQuoteCount++ + } switch rr { case '\b': b.WriteString(`\b`) case '\t': b.WriteString("\t") case '\n': - b.WriteString("\n") + b.WriteString("\n" + commented) case '\f': b.WriteString(`\f`) case '\r': b.WriteString("\r") case '"': - b.WriteString(`"`) + if adjacentQuoteCount >= 3 || i == len(value)-1 { + adjacentQuoteCount = 0 + b.WriteString(`\"`) + } else { + b.WriteString(`"`) + } case '\\': b.WriteString(`\`) default: @@ -90,7 +103,30 @@ func encodeTomlString(value string) string { return b.String() } -func tomlValueStringRepresentation(v interface{}, indent string, arraysOneElementPerLine bool) (string, error) { +func tomlTreeStringRepresentation(t *Tree, ord marshalOrder) (string, error) { + var orderedVals []sortNode + switch ord { + case OrderPreserve: + orderedVals = sortByLines(t) + default: + orderedVals = sortAlphabetical(t) + } + + var values []string + for _, node := range orderedVals { + k := node.key + v := t.values[k] + + repr, err := tomlValueStringRepresentation(v, "", "", ord, false) + if err != nil { + return "", err + } + values = append(values, quoteKeyIfNeeded(k)+" = "+repr) + } + return "{ " + strings.Join(values, ", ") + " }", nil +} + +func tomlValueStringRepresentation(v interface{}, commented string, indent string, ord marshalOrder, arraysOneElementPerLine bool) (string, error) { // this interface check is added to dereference the change made in the writeTo function. // That change was made to allow this function to see formatting options. tv, ok := v.(*tomlValue) @@ -106,20 +142,28 @@ func tomlValueStringRepresentation(v interface{}, indent string, arraysOneElemen case int64: return strconv.FormatInt(value, 10), nil case float64: - // Ensure a round float does contain a decimal point. Otherwise feeding - // the output back to the parser would convert to an integer. + // Default bit length is full 64 + bits := 64 + // Float panics if nan is used + if !math.IsNaN(value) { + // if 32 bit accuracy is enough to exactly show, use 32 + _, acc := big.NewFloat(value).Float32() + if acc == big.Exact { + bits = 32 + } + } if math.Trunc(value) == value { - return strings.ToLower(strconv.FormatFloat(value, 'f', 1, 32)), nil + return strings.ToLower(strconv.FormatFloat(value, 'f', 1, bits)), nil } - return strings.ToLower(strconv.FormatFloat(value, 'f', -1, 32)), nil + return strings.ToLower(strconv.FormatFloat(value, 'f', -1, bits)), nil case string: if tv.multiline { - return "\"\"\"\n" + encodeMultilineTomlString(value) + "\"\"\"", nil + return "\"\"\"\n" + encodeMultilineTomlString(value, commented) + "\"\"\"", nil } return "\"" + encodeTomlString(value) + "\"", nil case []byte: b, _ := v.([]byte) - return tomlValueStringRepresentation(string(b), indent, arraysOneElementPerLine) + return tomlValueStringRepresentation(string(b), commented, indent, ord, arraysOneElementPerLine) case bool: if value { return "true", nil @@ -127,6 +171,14 @@ func tomlValueStringRepresentation(v interface{}, indent string, arraysOneElemen return "false", nil case time.Time: return value.Format(time.RFC3339), nil + case LocalDate: + return value.String(), nil + case LocalDateTime: + return value.String(), nil + case LocalTime: + return value.String(), nil + case *Tree: + return tomlTreeStringRepresentation(value, ord) case nil: return "", nil } @@ -137,7 +189,7 @@ func tomlValueStringRepresentation(v interface{}, indent string, arraysOneElemen var values []string for i := 0; i < rv.Len(); i++ { item := rv.Index(i).Interface() - itemRepr, err := tomlValueStringRepresentation(item, indent, arraysOneElementPerLine) + itemRepr, err := tomlValueStringRepresentation(item, commented, indent, ord, arraysOneElementPerLine) if err != nil { return "", err } @@ -151,16 +203,16 @@ func tomlValueStringRepresentation(v interface{}, indent string, arraysOneElemen for _, value := range values { stringBuffer.WriteString(valueIndent) - stringBuffer.WriteString(value) + stringBuffer.WriteString(commented + value) stringBuffer.WriteString(`,`) stringBuffer.WriteString("\n") } - stringBuffer.WriteString(indent + "]") + stringBuffer.WriteString(indent + commented + "]") return stringBuffer.String(), nil } - return "[" + strings.Join(values, ",") + "]", nil + return "[" + strings.Join(values, ", ") + "]", nil } return "", fmt.Errorf("unsupported value type %T: %v", v, v) } @@ -255,10 +307,10 @@ func sortAlphabetical(t *Tree) (vals []sortNode) { } func (t *Tree) writeTo(w io.Writer, indent, keyspace string, bytesCount int64, arraysOneElementPerLine bool) (int64, error) { - return t.writeToOrdered(w, indent, keyspace, bytesCount, arraysOneElementPerLine, OrderAlphabetical) + return t.writeToOrdered(w, indent, keyspace, bytesCount, arraysOneElementPerLine, OrderAlphabetical, " ", false) } -func (t *Tree) writeToOrdered(w io.Writer, indent, keyspace string, bytesCount int64, arraysOneElementPerLine bool, ord marshalOrder) (int64, error) { +func (t *Tree) writeToOrdered(w io.Writer, indent, keyspace string, bytesCount int64, arraysOneElementPerLine bool, ord marshalOrder, indentString string, parentCommented bool) (int64, error) { var orderedVals []sortNode switch ord { @@ -274,14 +326,10 @@ func (t *Tree) writeToOrdered(w io.Writer, indent, keyspace string, bytesCount i k := node.key v := t.values[k] - combinedKey := k + combinedKey := quoteKeyIfNeeded(k) if keyspace != "" { combinedKey = keyspace + "." + combinedKey } - var commented string - if t.commented { - commented = "# " - } switch node := v.(type) { // node has to be of those two types given how keys are sorted above @@ -302,24 +350,33 @@ func (t *Tree) writeToOrdered(w io.Writer, indent, keyspace string, bytesCount i return bytesCount, errc } } + + var commented string + if parentCommented || t.commented || tv.commented { + commented = "# " + } writtenBytesCount, err := writeStrings(w, "\n", indent, commented, "[", combinedKey, "]\n") bytesCount += int64(writtenBytesCount) if err != nil { return bytesCount, err } - bytesCount, err = node.writeToOrdered(w, indent+" ", combinedKey, bytesCount, arraysOneElementPerLine, ord) + bytesCount, err = node.writeToOrdered(w, indent+indentString, combinedKey, bytesCount, arraysOneElementPerLine, ord, indentString, parentCommented || t.commented || tv.commented) if err != nil { return bytesCount, err } case []*Tree: for _, subTree := range node { + var commented string + if parentCommented || t.commented || subTree.commented { + commented = "# " + } writtenBytesCount, err := writeStrings(w, "\n", indent, commented, "[[", combinedKey, "]]\n") bytesCount += int64(writtenBytesCount) if err != nil { return bytesCount, err } - bytesCount, err = subTree.writeToOrdered(w, indent+" ", combinedKey, bytesCount, arraysOneElementPerLine, ord) + bytesCount, err = subTree.writeToOrdered(w, indent+indentString, combinedKey, bytesCount, arraysOneElementPerLine, ord, indentString, parentCommented || t.commented || subTree.commented) if err != nil { return bytesCount, err } @@ -332,7 +389,11 @@ func (t *Tree) writeToOrdered(w io.Writer, indent, keyspace string, bytesCount i return bytesCount, fmt.Errorf("invalid value type at %s: %T", k, t.values[k]) } - repr, err := tomlValueStringRepresentation(v, indent, arraysOneElementPerLine) + var commented string + if parentCommented || t.commented || v.commented { + commented = "# " + } + repr, err := tomlValueStringRepresentation(v, commented, indent, ord, arraysOneElementPerLine) if err != nil { return bytesCount, err } @@ -350,11 +411,8 @@ func (t *Tree) writeToOrdered(w io.Writer, indent, keyspace string, bytesCount i } } - var commented string - if v.commented { - commented = "# " - } - writtenBytesCount, err := writeStrings(w, indent, commented, k, " = ", repr, "\n") + quotedKey := quoteKeyIfNeeded(k) + writtenBytesCount, err := writeStrings(w, indent, commented, quotedKey, " = ", repr, "\n") bytesCount += int64(writtenBytesCount) if err != nil { return bytesCount, err @@ -365,6 +423,32 @@ func (t *Tree) writeToOrdered(w io.Writer, indent, keyspace string, bytesCount i return bytesCount, nil } +// quote a key if it does not fit the bare key format (A-Za-z0-9_-) +// quoted keys use the same rules as strings +func quoteKeyIfNeeded(k string) string { + // when encoding a map with the 'quoteMapKeys' option enabled, the tree will contain + // keys that have already been quoted. + // not an ideal situation, but good enough of a stop gap. + if len(k) >= 2 && k[0] == '"' && k[len(k)-1] == '"' { + return k + } + isBare := true + for _, r := range k { + if !isValidBareChar(r) { + isBare = false + break + } + } + if isBare { + return k + } + return quoteKey(k) +} + +func quoteKey(k string) string { + return "\"" + encodeTomlString(k) + "\"" +} + func writeStrings(w io.Writer, s ...string) (int, error) { var n int for i := range s { @@ -387,12 +471,11 @@ func (t *Tree) WriteTo(w io.Writer) (int64, error) { // Output spans multiple lines, and is suitable for ingest by a TOML parser. // If the conversion cannot be performed, ToString returns a non-nil error. func (t *Tree) ToTomlString() (string, error) { - var buf bytes.Buffer - _, err := t.WriteTo(&buf) + b, err := t.Marshal() if err != nil { return "", err } - return buf.String(), nil + return string(b), nil } // String generates a human-readable representation of the current tree. |