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toml-mbt

A TOML 1.0 parser and serializer for MoonBit

toml
parser
serializer
config
moon add yufenfei111/toml-mbt@0.1.0
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Version
0.1.0
License
Apache-2.0
Repository
Last updated
2 days ago
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README

#yufenfei111/toml-mbt

#
Table

source
type Table = Map[String, Value]

A table is a map from string keys to TOML values. The root of any parsed document is a Table, and inline tables inside a document are also tables.

#
TomlError

source
pub suberror TomlError {
  ParseError(Int, Int, String)
} derive(
Debug)

A TOML parse error carrying a 1-based source position and a description.

line and column locate the error in the input; message describes it.

#
TomlError::new

source
fn TomlError::new(line : Int, column : Int, message : String) -> TomlError

Constructs a TomlError at the given 1-based line and column.

#
TomlError::to_string

source
fn TomlError::to_string(self : TomlError) -> String

Renders the error as line N, column M: message.

#
Lexer

source
type Lexer

A hand-written lexer for TOML source text.

It produces a flat token stream with 1-based source positions, leaving semantic interpretation (numbers, dates, dotted keys) to the parser. It understands the hard parts of TOML lexical structure: the four string forms (basic, literal, and their multiline variants) and the line-ending backslash in multiline basic strings.

#
Lexer::tokenize

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fn Lexer::tokenize(input : String) -> Array[Token] raise TomlError

Tokenizes input into a token stream, or raises TomlError on lexical errors such as an unterminated string or an invalid escape.

#
LocalDate

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pub struct LocalDate {
  year : Int
  month : Int
  day : Int
} derive(Eq, 
Debug)

A calendar date (year-month-day) with no time and no timezone.

#
LocalDate::new

source
fn LocalDate::new(year : Int, month : Int, day : Int) -> LocalDate

Constructors for LocalDate.

#
LocalDateTime

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pub struct LocalDateTime {
  date : LocalDate
  time : LocalTime
} derive(Eq, 
Debug)

A local date-time (a date plus a time, no timezone).

#
LocalDateTime::new

source
fn LocalDateTime::new(date : LocalDate, time : LocalTime) -> LocalDateTime

Constructors for LocalDateTime.

#
LocalTime

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pub struct LocalTime {
  hour : Int
  minute : Int
  second : Int
  nanosecond : Int
} derive(Eq, 
Debug)

A wall-clock time (hour:minute:second.nanosecond) with no timezone.

#
LocalTime::new

source
fn LocalTime::new(hour : Int, minute : Int, second : Int, nanosecond : Int) -> LocalTime

Constructors for LocalTime.

#
OffsetDateTime

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pub struct OffsetDateTime {
  date : LocalDate
  time : LocalTime
  offset_minutes : Int
} derive(Eq, 
Debug)

A date-time with a UTC offset. The offset is stored as a whole number of minutes east of UTC (-07:00 becomes -420, Z becomes 0).

#
OffsetDateTime::new

source
fn OffsetDateTime::new(date : LocalDate, time : LocalTime, offset_minutes : Int) -> OffsetDateTime

Constructors for OffsetDateTime.

#
Parser

source
type Parser

#
Token

source
pub struct Token {
  kind : TokenKind
  line : Int
  column : Int
} derive(Eq, 
Debug)

A token together with its 1-based source position (line and column).

#
Token::new

source
fn Token::new(kind : TokenKind, line : Int, column : Int) -> Token

Constructs a token at the given 1-based line and column.

#
TokenKind

source
pub enum TokenKind {
  Word(String)
  Str(String)
  Equal
  Comma
  LBracket
  RBracket
  LBrace
  RBrace
  Newline
  EOF
} derive(Eq, 
Debug)

The lexical kind of a token produced by the lexer.

#
Value

source
pub enum Value {
  String(String)
  Integer(Int64)
  Float(Double)
  Boolean(Bool)
  OffsetDateTime(OffsetDateTime)
  LocalDateTime(LocalDateTime)
  LocalDate(LocalDate)
  LocalTime(LocalTime)
  Array(Array[Value])
  Table(Map[String, Value])
} derive(
Debug)

A TOML value. Mirrors every value kind defined by the TOML 1.0 spec.
impl Eq for Value

#
parse

source
fn parse(text : String) -> Result[Map[String, Value], TomlError]

Parses a TOML document into a Table, or returns a TomlError.

#
serialize

source
fn serialize(table : Map[String, Value]) -> String

Serializes a table into TOML text.

#
to_json

source
fn to_json(table : Map[String, Value]) -> Json

Converts a table to the toml-test tagged JSON representation.

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