-
Notifications
You must be signed in to change notification settings - Fork 0
/
parser.go
46 lines (36 loc) · 1.13 KB
/
parser.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
package superscript
import (
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/parser"
"github.com/yuin/goldmark/text"
)
type superscriptDelimiterProcessor struct {
}
func (p *superscriptDelimiterProcessor) IsDelimiter(b byte) bool {
return b == '^'
}
func (p *superscriptDelimiterProcessor) CanOpenCloser(opener, closer *parser.Delimiter) bool {
return opener.Char == closer.Char
}
func (p *superscriptDelimiterProcessor) OnMatch(consumes int) ast.Node {
return &Node{}
}
var defaultEmphasisDelimiterProcessor = &superscriptDelimiterProcessor{}
type superscriptParser struct {
}
var defaultSuperscriptParser = &superscriptParser{}
func (s *superscriptParser) Trigger() []byte {
return []byte{'^'}
}
func (s *superscriptParser) Parse(parent ast.Node, block text.Reader, pc parser.Context) ast.Node {
before := block.PrecendingCharacter()
line, segment := block.PeekLine()
node := parser.ScanDelimiter(line, before, 1, defaultEmphasisDelimiterProcessor)
if node == nil {
return nil
}
node.Segment = segment.WithStop(segment.Start + node.OriginalLength)
block.Advance(node.OriginalLength)
pc.PushDelimiter(node)
return node
}