syntax

Documentation

Index

• type Highlight
• type Regexp
• type Tokenizer
  • func NewRegexpTokenizer(regexps ...Regexp) (Tokenizer, error)

Types

type Highlight

type Highlight struct {
	// At is the addressed string.
	At [2]int64
	// Style is the style to apply to the string.
	text.Style
}

A Highlight is a style applied to an addressed string of text.

type Regexp

type Regexp struct {
	// Regexp is the re1 regular expression to match the element.
	Regexp string
	// Group is the numbered capture group of the element text.
	Group int
	Style text.Style
}

A Regexp describes a syntactic element using a regular expression.

type Tokenizer

type Tokenizer interface {
	// NextToken next token or false.
	NextToken(rope.Rope) (Highlight, bool)
}

Tokenizer returns tokens from a rope.

func NewRegexpTokenizer

func NewRegexpTokenizer(regexps ...Regexp) (Tokenizer, error)

NewRegexpTokenizer returns a new Tokenizer defined by a set of re1 regular expressions.