diff options
Diffstat (limited to 'vendor/github.com/yuin/goldmark/parser/list_item.go')
-rw-r--r-- | vendor/github.com/yuin/goldmark/parser/list_item.go | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/vendor/github.com/yuin/goldmark/parser/list_item.go b/vendor/github.com/yuin/goldmark/parser/list_item.go new file mode 100644 index 000000000..81357a9ad --- /dev/null +++ b/vendor/github.com/yuin/goldmark/parser/list_item.go @@ -0,0 +1,90 @@ +package parser + +import ( + "github.com/yuin/goldmark/ast" + "github.com/yuin/goldmark/text" + "github.com/yuin/goldmark/util" +) + +type listItemParser struct { +} + +var defaultListItemParser = &listItemParser{} + +// NewListItemParser returns a new BlockParser that +// parses list items. +func NewListItemParser() BlockParser { + return defaultListItemParser +} + +func (b *listItemParser) Trigger() []byte { + return []byte{'-', '+', '*', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'} +} + +func (b *listItemParser) Open(parent ast.Node, reader text.Reader, pc Context) (ast.Node, State) { + list, lok := parent.(*ast.List) + if !lok { // list item must be a child of a list + return nil, NoChildren + } + offset := lastOffset(list) + line, _ := reader.PeekLine() + match, typ := matchesListItem(line, false) + if typ == notList { + return nil, NoChildren + } + if match[1]-offset > 3 { + return nil, NoChildren + } + + pc.Set(emptyListItemWithBlankLines, nil) + + itemOffset := calcListOffset(line, match) + node := ast.NewListItem(match[3] + itemOffset) + if match[4] < 0 || util.IsBlank(line[match[4]:match[5]]) { + return node, NoChildren + } + + pos, padding := util.IndentPosition(line[match[4]:], match[4], itemOffset) + child := match[3] + pos + reader.AdvanceAndSetPadding(child, padding) + return node, HasChildren +} + +func (b *listItemParser) Continue(node ast.Node, reader text.Reader, pc Context) State { + line, _ := reader.PeekLine() + if util.IsBlank(line) { + reader.Advance(len(line) - 1) + return Continue | HasChildren + } + + offset := lastOffset(node.Parent()) + isEmpty := node.ChildCount() == 0 + indent, _ := util.IndentWidth(line, reader.LineOffset()) + if (isEmpty || indent < offset) && indent < 4 { + _, typ := matchesListItem(line, true) + // new list item found + if typ != notList { + pc.Set(skipListParserKey, listItemFlagValue) + return Close + } + if !isEmpty { + return Close + } + } + pos, padding := util.IndentPosition(line, reader.LineOffset(), offset) + reader.AdvanceAndSetPadding(pos, padding) + + return Continue | HasChildren +} + +func (b *listItemParser) Close(node ast.Node, reader text.Reader, pc Context) { + // nothing to do +} + +func (b *listItemParser) CanInterruptParagraph() bool { + return true +} + +func (b *listItemParser) CanAcceptIndentedLine() bool { + return false +} |