diff options
Diffstat (limited to 'vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/blocks.go')
-rw-r--r-- | vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/blocks.go | 154 |
1 files changed, 0 insertions, 154 deletions
diff --git a/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/blocks.go b/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/blocks.go deleted file mode 100644 index 607356e0..00000000 --- a/vendor/github.com/mattermost/mattermost-server/v5/utils/markdown/blocks.go +++ /dev/null @@ -1,154 +0,0 @@ -// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved. -// See LICENSE.txt for license information. - -package markdown - -import ( - "strings" -) - -type continuation struct { - Indentation int - Remaining Range -} - -type Block interface { - Continuation(indentation int, r Range) *continuation - AddLine(indentation int, r Range) bool - Close() - AllowsBlockStarts() bool - HasTrailingBlankLine() bool -} - -type blockBase struct{} - -func (*blockBase) AddLine(indentation int, r Range) bool { return false } -func (*blockBase) Close() {} -func (*blockBase) AllowsBlockStarts() bool { return true } -func (*blockBase) HasTrailingBlankLine() bool { return false } - -type ContainerBlock interface { - Block - AddChild(openBlocks []Block) []Block -} - -type Range struct { - Position int - End int -} - -func closeBlocks(blocks []Block, referenceDefinitions []*ReferenceDefinition) []*ReferenceDefinition { - for _, block := range blocks { - block.Close() - if p, ok := block.(*Paragraph); ok && len(p.ReferenceDefinitions) > 0 { - referenceDefinitions = append(referenceDefinitions, p.ReferenceDefinitions...) - } - } - return referenceDefinitions -} - -func ParseBlocks(markdown string, lines []Line) (*Document, []*ReferenceDefinition) { - document := &Document{} - var referenceDefinitions []*ReferenceDefinition - - openBlocks := []Block{document} - - for _, line := range lines { - r := line.Range - lastMatchIndex := 0 - - indentation, indentationBytes := countIndentation(markdown, r) - r = Range{r.Position + indentationBytes, r.End} - - for i, block := range openBlocks { - if continuation := block.Continuation(indentation, r); continuation != nil { - indentation = continuation.Indentation - r = continuation.Remaining - additionalIndentation, additionalIndentationBytes := countIndentation(markdown, r) - r = Range{r.Position + additionalIndentationBytes, r.End} - indentation += additionalIndentation - lastMatchIndex = i - } else { - break - } - } - - if openBlocks[lastMatchIndex].AllowsBlockStarts() { - if newBlocks := blockStart(markdown, indentation, r, openBlocks[:lastMatchIndex+1], openBlocks[lastMatchIndex+1:]); newBlocks != nil { - didAdd := false - for i := lastMatchIndex; i >= 0; i-- { - if container, ok := openBlocks[i].(ContainerBlock); ok { - if addedBlocks := container.AddChild(newBlocks); addedBlocks != nil { - referenceDefinitions = closeBlocks(openBlocks[i+1:], referenceDefinitions) - openBlocks = openBlocks[:i+1] - openBlocks = append(openBlocks, addedBlocks...) - didAdd = true - break - } - } - } - if didAdd { - continue - } - } - } - - isBlank := strings.TrimSpace(markdown[r.Position:r.End]) == "" - if paragraph, ok := openBlocks[len(openBlocks)-1].(*Paragraph); ok && !isBlank { - paragraph.Text = append(paragraph.Text, r) - continue - } - - referenceDefinitions = closeBlocks(openBlocks[lastMatchIndex+1:], referenceDefinitions) - openBlocks = openBlocks[:lastMatchIndex+1] - - if openBlocks[lastMatchIndex].AddLine(indentation, r) { - continue - } - - if paragraph := newParagraph(markdown, r); paragraph != nil { - for i := lastMatchIndex; i >= 0; i-- { - if container, ok := openBlocks[i].(ContainerBlock); ok { - if newBlocks := container.AddChild([]Block{paragraph}); newBlocks != nil { - referenceDefinitions = closeBlocks(openBlocks[i+1:], referenceDefinitions) - openBlocks = openBlocks[:i+1] - openBlocks = append(openBlocks, newBlocks...) - break - } - } - } - } - } - - referenceDefinitions = closeBlocks(openBlocks, referenceDefinitions) - - return document, referenceDefinitions -} - -func blockStart(markdown string, indentation int, r Range, matchedBlocks, unmatchedBlocks []Block) []Block { - if r.Position >= r.End { - return nil - } - - if start := blockQuoteStart(markdown, indentation, r, matchedBlocks, unmatchedBlocks); start != nil { - return start - } else if start := listStart(markdown, indentation, r, matchedBlocks, unmatchedBlocks); start != nil { - return start - } else if start := indentedCodeStart(markdown, indentation, r, matchedBlocks, unmatchedBlocks); start != nil { - return start - } else if start := fencedCodeStart(markdown, indentation, r, matchedBlocks, unmatchedBlocks); start != nil { - return start - } - - return nil -} - -func blockStartOrParagraph(markdown string, indentation int, r Range, matchedBlocks, unmatchedBlocks []Block) []Block { - if start := blockStart(markdown, indentation, r, matchedBlocks, unmatchedBlocks); start != nil { - return start - } - if paragraph := newParagraph(markdown, r); paragraph != nil { - return []Block{paragraph} - } - return nil -} |