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remove toml, yaml marshler and unmarshaler
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,100 +1,17 @@ | ||
| // Package encoding provides interfaces and utilities for encoding and decoding data. | ||
| package encoding | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "errors" | ||
| "strconv" | ||
| "strings" | ||
| "unicode/utf8" | ||
| ) | ||
|
|
||
| // ErrInvalidString is returned when the input string is invalid. | ||
| var ErrInvalidString = errors.New("invalid string") | ||
|
|
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| // Encoder is a function type that encodes a value into bytes. | ||
| type Encoder func(any) ([]byte, error) | ||
|
|
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| // Decoder is a function type that decodes bytes into a provided value. | ||
| type Decoder func([]byte, any) error | ||
|
|
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| // JSONMarshaler is an interface for types that can marshal themselves to JSON. | ||
| type JSONMarshaler interface { | ||
| MarshalJSON() ([]byte, error) | ||
| } | ||
|
|
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| // JSONUnmarshaler is an interface for types that can unmarshal themselves from JSON. | ||
| type JSONUnmarshaler interface { | ||
| UnmarshalJSON([]byte) error | ||
| } | ||
|
|
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| // TOMLMarshaler is an interface for types that can marshal themselves to TOML. | ||
| type TOMLMarshaler interface { | ||
| MarshalTOML() ([]byte, error) | ||
| } | ||
|
|
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| // TOMLUnmarshaler is an interface for types that can unmarshal themselves from TOML. | ||
| type TOMLUnmarshaler interface { | ||
| UnmarshalTOML([]byte) error | ||
| } | ||
|
|
||
| // YAMLMarshaler is an interface for types that can marshal themselves to YAML. | ||
| type YAMLMarshaler interface { | ||
| MarshalYAML() ([]byte, error) | ||
| } | ||
|
|
||
| // YAMLUnmarshaler is an interface for types that can unmarshal themselves from YAML. | ||
| type YAMLUnmarshaler interface { | ||
| UnmarshalYAML([]byte) error | ||
| } | ||
|
|
||
| // UnmarshalString decodes a string from byte slice data. | ||
| // It supports both quoted strings and literal strings. | ||
| // | ||
| // Parameters: | ||
| // - data: The byte slice containing the string to unmarshal. | ||
| // - literalChar: The character used for literal strings. Use 0 for no literal strings. | ||
| // - allowNewline: Whether newlines are allowed in literal strings. | ||
| // | ||
| // Returns: | ||
| // - The unmarshaled string and nil error if successful. | ||
| // - An empty string and an error if unmarshaling fails. | ||
| func UnmarshalString(data []byte, literalChar byte, allowNewline bool) (string, error) { | ||
| data = bytes.TrimSpace(data) | ||
| if len(data) < 2 { | ||
| return "", errors.New("string too short") | ||
| } | ||
|
|
||
| switch data[0] { | ||
| case '"': | ||
| return unquoteString(data) | ||
| case literalChar: | ||
| if literalChar == 0 || literalChar == '"' { | ||
| break | ||
| } | ||
| return extractLiteralString(data, literalChar, allowNewline) | ||
| } | ||
|
|
||
| return "", ErrInvalidString | ||
| } | ||
|
|
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| func unquoteString(data []byte) (string, error) { | ||
| if data[len(data)-1] != '"' { | ||
| return "", errors.New("mismatched quotes") | ||
| } | ||
| return strconv.Unquote(string(data)) | ||
| } | ||
|
|
||
| func extractLiteralString(data []byte, literalChar byte, allowNewline bool) (string, error) { | ||
| if data[len(data)-1] != literalChar { | ||
| return "", errors.New("mismatched quotes") | ||
| } | ||
| str := string(data[1 : len(data)-1]) | ||
| if !allowNewline && strings.ContainsRune(str, '\n') { | ||
| return "", errors.New("newlines not allowed in literal string") | ||
| } | ||
| if !utf8.ValidString(str) { | ||
| return "", errors.New("invalid UTF-8 in string") | ||
| // Transform decodes data using the provided decoder, then encodes it using the provided encoder. | ||
| func Transform(data []byte, encoder Encoder, decoder Decoder) ([]byte, error) { | ||
| var v = make(map[string]any) | ||
| if err := decoder(data, &v); err != nil { | ||
| return nil, err | ||
| } | ||
| return str, nil | ||
| return encoder(v) | ||
| } |
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