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Monorepo for Tangled tangled.org
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465package extension
import ( "github.com/yuin/goldmark" gast "github.com/yuin/goldmark/ast" "github.com/yuin/goldmark/parser" "github.com/yuin/goldmark/text" "github.com/yuin/goldmark/util")
type dashParser struct{}
func (p *dashParser) Trigger() []byte { return []byte{'-'}}
func (p *dashParser) Parse(parent gast.Node, block text.Reader, pc parser.Context) gast.Node { line, _ := block.PeekLine() if len(line) < 2 || line[0] != '-' || line[1] != '-' { return nil } node := gast.NewString([]byte("\u2014")) node.SetCode(true) block.Advance(2) return node}
type digitDashParser struct{}
func (p *digitDashParser) Trigger() []byte { return []byte{'-'}}
func (p *digitDashParser) Parse(parent gast.Node, block text.Reader, pc parser.Context) gast.Node { line, _ := block.PeekLine() if len(line) < 2 { return nil } before := block.PrecendingCharacter() if before < '0' || before > '9' { return nil } if line[1] < '0' || line[1] > '9' { return nil } node := gast.NewString([]byte("\u2013")) node.SetCode(true) block.Advance(1) return node}
type dashExt struct{}
// Dashes replaces "--" with an em-dash (—) and a hyphen between two digits// with an en-dash (–). Implemented as an inline parser so it operates on the// raw byte stream, unaffected by hard-wrapped source lines.var Dashes goldmark.Extender = &dashExt{}
func (e *dashExt) Extend(m goldmark.Markdown) { m.Parser().AddOptions(parser.WithInlineParsers( util.Prioritized(&dashParser{}, 9990), util.Prioritized(&digitDashParser{}, 9991), ))}