27757714d0
* Move to goldmark Markdown rendering moved from blackfriday to the goldmark. Multiple subtle changes required to the goldmark extensions to keep current rendering and defaults. Can go further with goldmark linkify and have this work within markdown rendering making the link processor unnecessary. Need to think about how to go about allowing extensions - at present it seems that these would be hard to do without recompilation. * linter fixes Co-authored-by: Lauris BH <lauris@nix.lv>
76 lines
1.5 KiB
Go
76 lines
1.5 KiB
Go
package parser
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import (
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"github.com/yuin/goldmark/ast"
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"github.com/yuin/goldmark/text"
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"github.com/yuin/goldmark/util"
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)
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type thematicBreakPraser struct {
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}
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var defaultThematicBreakPraser = &thematicBreakPraser{}
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// NewThematicBreakParser returns a new BlockParser that
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// parses thematic breaks.
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func NewThematicBreakParser() BlockParser {
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return defaultThematicBreakPraser
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}
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func isThematicBreak(line []byte, offset int) bool {
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w, pos := util.IndentWidth(line, offset)
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if w > 3 {
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return false
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}
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mark := byte(0)
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count := 0
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for i := pos; i < len(line); i++ {
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c := line[i]
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if util.IsSpace(c) {
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continue
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}
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if mark == 0 {
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mark = c
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count = 1
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if mark == '*' || mark == '-' || mark == '_' {
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continue
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}
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return false
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}
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if c != mark {
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return false
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}
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count++
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}
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return count > 2
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}
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func (b *thematicBreakPraser) Trigger() []byte {
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return []byte{'-', '*', '_'}
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}
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func (b *thematicBreakPraser) Open(parent ast.Node, reader text.Reader, pc Context) (ast.Node, State) {
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line, segment := reader.PeekLine()
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if isThematicBreak(line, reader.LineOffset()) {
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reader.Advance(segment.Len() - 1)
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return ast.NewThematicBreak(), NoChildren
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}
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return nil, NoChildren
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}
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func (b *thematicBreakPraser) Continue(node ast.Node, reader text.Reader, pc Context) State {
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return Close
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}
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func (b *thematicBreakPraser) Close(node ast.Node, reader text.Reader, pc Context) {
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// nothing to do
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}
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func (b *thematicBreakPraser) CanInterruptParagraph() bool {
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return true
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}
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func (b *thematicBreakPraser) CanAcceptIndentedLine() bool {
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return false
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}
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