1package parser
 2
 3import (
 4	"github.com/yuin/goldmark/ast"
 5	"github.com/yuin/goldmark/text"
 6	"github.com/yuin/goldmark/util"
 7)
 8
 9type autoLinkParser struct {
10}
11
12var defaultAutoLinkParser = &autoLinkParser{}
13
14// NewAutoLinkParser returns a new InlineParser that parses autolinks
15// surrounded by '<' and '>' .
16func NewAutoLinkParser() InlineParser {
17	return defaultAutoLinkParser
18}
19
20func (s *autoLinkParser) Trigger() []byte {
21	return []byte{'<'}
22}
23
24func (s *autoLinkParser) Parse(parent ast.Node, block text.Reader, pc Context) ast.Node {
25	line, segment := block.PeekLine()
26	stop := util.FindEmailIndex(line[1:])
27	typ := ast.AutoLinkType(ast.AutoLinkEmail)
28	if stop < 0 {
29		stop = util.FindURLIndex(line[1:])
30		typ = ast.AutoLinkURL
31	}
32	if stop < 0 {
33		return nil
34	}
35	stop++
36	if stop >= len(line) || line[stop] != '>' {
37		return nil
38	}
39	value := ast.NewTextSegment(text.NewSegment(segment.Start+1, segment.Start+stop))
40	block.Advance(stop + 1)
41	return ast.NewAutoLink(typ, value)
42}