parser

package

v0.92.1 Latest Latest Go to latest Published: Jun 6, 2026 License: GPL-3.0 Imports: 4 Imported by: 0

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
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Repository

github.com/flowline-io/flowbot

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Documentation ¶

Overview ¶

Package parser provides command and expression parsing.

Index ¶

Constants
func SyntaxCheck(define string, actual []*Token) (bool, error)
type Lexer
- func NewLexer(text []rune) *Lexer
- func (l *Lexer) GetNextToken() (*Token, error)
- func (l *Lexer) String() (*Token, error)
type Scanner
- func NewScanner(text []rune) Scanner
type Syntax
- func NewSyntax(text []rune) *Syntax
- func (l *Syntax) GetNextToken() (*Token, error)
- func (l *Syntax) Parameter() (*Token, error)
type Token
- func ParseString(in string) ([]*Token, error)
type Value
- func Variable(i any) Value

Constants ¶

View Source

const (
	CharacterToken = "character"
	ParameterToken = "parameter"
	EOFToken       = "eof"
)

Variables ¶

This section is empty.

Functions ¶

func SyntaxCheck ¶

func SyntaxCheck(define string, actual []*Token) (bool, error)

Types ¶

type Lexer ¶

type Lexer struct {
	Scanner
}

func NewLexer ¶

func NewLexer(text []rune) *Lexer

func (*Lexer) GetNextToken ¶

func (l *Lexer) GetNextToken() (*Token, error)

func (*Lexer) String ¶

func (l *Lexer) String() (*Token, error)

type Scanner ¶ added in v0.92.0

type Scanner struct {
	Text        []rune
	Pos         int
	CurrentChar rune
	LineNo      int
	Column      int
}

Scanner holds the shared cursor state and common scanning methods for tokenizers.

func NewScanner ¶ added in v0.92.0

func NewScanner(text []rune) Scanner

NewScanner initializes a Scanner with the given input text.

func (*Scanner) Advance ¶ added in v0.92.0

func (s *Scanner) Advance()

Advance moves the cursor forward by one rune, tracking line and column numbers.

func (*Scanner) Character ¶ added in v0.92.0

func (s *Scanner) Character() (*Token, error)

Character consumes a run of non-space characters into a Token.

func (*Scanner) Peek ¶ added in v0.92.0

func (s *Scanner) Peek() rune

Peek returns the next rune without advancing the cursor.

func (*Scanner) SkipWhitespace ¶ added in v0.92.0

func (s *Scanner) SkipWhitespace()

SkipWhitespace advances past all whitespace characters.

type Syntax ¶

type Syntax struct {
	Scanner
}

func NewSyntax ¶

func NewSyntax(text []rune) *Syntax

func (*Syntax) GetNextToken ¶

func (l *Syntax) GetNextToken() (*Token, error)

func (*Syntax) Parameter ¶

func (l *Syntax) Parameter() (*Token, error)

type Token ¶

type Token struct {
	Type   string
	Value  Value
	LineNo int
	Column int
}

func ParseString ¶

func ParseString(in string) ([]*Token, error)

type Value ¶

type Value struct {
	Source any
}

func Variable ¶

func Variable(i any) Value

func (Value) Bool ¶

func (v Value) Bool() (bool, bool)

func (Value) Int64 ¶

func (v Value) Int64() (int64, bool)

func (Value) String ¶

func (v Value) String() (string, bool)

Source Files ¶

View all Source files

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