Source file src/github.com/yuin/goldmark/parser/emphasis.go

Documentation: github.com/yuin/goldmark/parser

     1  package parser
     2  
     3  import (
     4  	"github.com/yuin/goldmark/ast"
     5  	"github.com/yuin/goldmark/text"
     6  )
     7  
     8  type emphasisDelimiterProcessor struct {
     9  }
    10  
    11  func (p *emphasisDelimiterProcessor) IsDelimiter(b byte) bool {
    12  	return b == '*' || b == '_'
    13  }
    14  
    15  func (p *emphasisDelimiterProcessor) CanOpenCloser(opener, closer *Delimiter) bool {
    16  	return opener.Char == closer.Char
    17  }
    18  
    19  func (p *emphasisDelimiterProcessor) OnMatch(consumes int) ast.Node {
    20  	return ast.NewEmphasis(consumes)
    21  }
    22  
    23  var defaultEmphasisDelimiterProcessor = &emphasisDelimiterProcessor{}
    24  
    25  type emphasisParser struct {
    26  }
    27  
    28  var defaultEmphasisParser = &emphasisParser{}
    29  
    30  // NewEmphasisParser return a new InlineParser that parses emphasises.
    31  func NewEmphasisParser() InlineParser {
    32  	return defaultEmphasisParser
    33  }
    34  
    35  func (s *emphasisParser) Trigger() []byte {
    36  	return []byte{'*', '_'}
    37  }
    38  
    39  func (s *emphasisParser) Parse(parent ast.Node, block text.Reader, pc Context) ast.Node {
    40  	before := block.PrecendingCharacter()
    41  	line, segment := block.PeekLine()
    42  	node := ScanDelimiter(line, before, 1, defaultEmphasisDelimiterProcessor)
    43  	if node == nil {
    44  		return nil
    45  	}
    46  	node.Segment = segment.WithStop(segment.Start + node.OriginalLength)
    47  	block.Advance(node.OriginalLength)
    48  	pc.PushDelimiter(node)
    49  	return node
    50  }
    51  

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