tea/vendor/github.com/yuin/goldmark/parser/emphasis.go

51 lines
1.2 KiB
Go

package parser
import (
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/text"
)
type emphasisDelimiterProcessor struct {
}
func (p *emphasisDelimiterProcessor) IsDelimiter(b byte) bool {
return b == '*' || b == '_'
}
func (p *emphasisDelimiterProcessor) CanOpenCloser(opener, closer *Delimiter) bool {
return opener.Char == closer.Char
}
func (p *emphasisDelimiterProcessor) OnMatch(consumes int) ast.Node {
return ast.NewEmphasis(consumes)
}
var defaultEmphasisDelimiterProcessor = &emphasisDelimiterProcessor{}
type emphasisParser struct {
}
var defaultEmphasisParser = &emphasisParser{}
// NewEmphasisParser return a new InlineParser that parses emphasises.
func NewEmphasisParser() InlineParser {
return defaultEmphasisParser
}
func (s *emphasisParser) Trigger() []byte {
return []byte{'*', '_'}
}
func (s *emphasisParser) Parse(parent ast.Node, block text.Reader, pc Context) ast.Node {
before := block.PrecendingCharacter()
line, segment := block.PeekLine()
node := 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
}