Moduletoml-parser-2.0.2.0Haskell2010

Toml.Syntax.Lexer

This module parses a TOML file into a lazy sequence of tokens. The lexer is aware of nested brackets and equals signs in order to handle TOML's context-sensitive lexing requirements. This context enables the lexer to distinguish between bare keys and various values like: floating-point literals, integer literals, and date literals.

This module uses actions and lexical hooks defined in LexerUtils.

2 types
2 values

Packagetoml-parser-2.0.2.0
Exports4
LanguageHaskell2010
LicenceISC
SourceLexer.x

datadata Context

Representation of the current lexer state.

Constructors

TopContext
top-level where [[ and ]] have special meaning
TableContext
inline table - lex key names
ValueContext
value lexer - lex number literals
MlBstrContext Position [Text]
multiline basic string: position of opening delimiter and list of fragments
BstrContext Position [Text]
basic string: position of opening delimiter and list of fragments
MlLstrContext Position [Text]
multiline literal string: position of opening delimiter and list of fragments
LstrContext Position [Text]
literal string: position of opening delimiter and list of fragments

Instances1Show

Show ContextDefined in toml-parser-2.0.2.0 · Toml.Syntax.LexerUtils

valuescanToken

:: Context
-> Located Text
-> Either (Located String) (Located Token, Located Text)

Get the next token from a located string or a located error message.

valuelexValue :: Text -> Either String Token

Lex a single token in a value context. This is mostly useful for testing.

datadata Token

Lexical token

Constructors

TokTrue
```
true
```
TokFalse
```
false
```
TokComma
```
','
```
TokEquals
```
=
```
TokNewline
```
end-of-line
```
TokPeriod
```
.
```
TokSquareO
```
'['
```
TokSquareC
```
']'
```
Tok2SquareO
```
'[['
```
Tok2SquareC
```
']]'
```
TokCurlyO
```
'{'
```
TokCurlyC
```
'}'
```
TokBareKey Text
bare key
TokString Text
string literal
TokMlString Text
multiline string literal
TokInteger !Integer
integer literal
TokFloat !Double
floating-point literal
TokOffsetDateTime !ZonedTime
date-time with timezone offset
TokLocalDateTime !LocalTime
local date-time
TokLocalDate !Day
local date
TokLocalTime !TimeOfDay
local time
TokEOF
```
end-of-input
```

Instances2Read, Show

Read TokenDefined in toml-parser-2.0.2.0 · Toml.Syntax.Token
Show TokenDefined in toml-parser-2.0.2.0 · Toml.Syntax.Token