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author | Wim <wim@42.be> | 2019-01-06 22:25:19 +0100 |
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committer | GitHub <noreply@github.com> | 2019-01-06 22:25:19 +0100 |
commit | 04567c765e92ad60c685c1b2fe7e77c46e065645 (patch) | |
tree | 34a587a6545c8e71e991e2a1551885faa0075738 /vendor/gitlab.com/golang-commonmark/markdown/reference.go | |
parent | 048158ad6db08cd714f39467fc0066ce41cfe6c5 (diff) | |
download | matterbridge-msglm-04567c765e92ad60c685c1b2fe7e77c46e065645.tar.gz matterbridge-msglm-04567c765e92ad60c685c1b2fe7e77c46e065645.tar.bz2 matterbridge-msglm-04567c765e92ad60c685c1b2fe7e77c46e065645.zip |
Add support for markdown to HTML conversion (matrix). Closes #663 (#670)
This uses our own gomatrix lib with the SendHTML function which
adds HTML to formatted_body in matrix.
golang-commonmark is used to convert markdown into valid HTML.
Diffstat (limited to 'vendor/gitlab.com/golang-commonmark/markdown/reference.go')
-rw-r--r-- | vendor/gitlab.com/golang-commonmark/markdown/reference.go | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/vendor/gitlab.com/golang-commonmark/markdown/reference.go b/vendor/gitlab.com/golang-commonmark/markdown/reference.go new file mode 100644 index 00000000..6e97809e --- /dev/null +++ b/vendor/gitlab.com/golang-commonmark/markdown/reference.go @@ -0,0 +1,173 @@ +// Copyright 2015 The Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package markdown + +import "strings" + +var referenceTerminatedBy []BlockRule + +func ruleReference(s *StateBlock, startLine, _ int, silent bool) bool { + lines := 0 + pos := s.BMarks[startLine] + s.TShift[startLine] + max := s.EMarks[startLine] + nextLine := startLine + 1 + + if s.SCount[startLine]-s.BlkIndent >= 4 { + return false + } + + src := s.Src + + if src[pos] != '[' { + return false + } + + pos++ + for pos < max { + if src[pos] == ']' && src[pos-1] != '\\' { + if pos+1 == max { + return false + } + if src[pos+1] != ':' { + return false + } + break + } + pos++ + } + + endLine := s.LineMax + + oldParentType := s.ParentType + s.ParentType = ptReference +outer: + for ; nextLine < endLine && !s.IsLineEmpty(nextLine); nextLine++ { + if s.SCount[nextLine]-s.BlkIndent > 3 { + continue + } + + if s.SCount[nextLine] < 0 { + continue + } + + for _, r := range referenceTerminatedBy { + if r(s, nextLine, endLine, true) { + break outer + } + } + } + + str := strings.TrimSpace(s.Lines(startLine, nextLine, s.BlkIndent, false)) + max = len(str) + + var labelEnd int + for pos = 1; pos < max; pos++ { + b := str[pos] + if b == '[' { + return false + } else if b == ']' { + labelEnd = pos + break + } else if b == '\n' { + lines++ + } else if b == '\\' { + pos++ + if pos < max && str[pos] == '\n' { + lines++ + } + } + } + + if labelEnd <= 0 || labelEnd+1 >= max || str[labelEnd+1] != ':' { + return false + } + + for pos = labelEnd + 2; pos < max; pos++ { + b := str[pos] + if b == '\n' { + lines++ + } else if !byteIsSpace(b) { + break + } + } + + href, nlines, endpos, ok := parseLinkDestination(str, pos, max) + if !ok { + return false + } + href = normalizeLink(href) + if !validateLink(href) { + return false + } + + pos = endpos + lines += nlines + + destEndPos := pos + destEndLineNo := lines + + start := pos + for ; pos < max; pos++ { + b := str[pos] + if b == '\n' { + lines++ + } else if !byteIsSpace(b) { + break + } + } + + title, nlines, endpos, ok := parseLinkTitle(str, pos, max) + if pos < max && start != pos && ok { + pos = endpos + lines += nlines + } else { + pos = destEndPos + lines = destEndLineNo + } + + for pos < max && byteIsSpace(str[pos]) { + pos++ + } + + if pos < max && str[pos] != '\n' { + if title != "" { + title = "" + pos = destEndPos + lines = destEndLineNo + for pos < max && byteIsSpace(src[pos]) { + pos++ + } + } + } + + if pos < max && str[pos] != '\n' { + return false + } + + label := normalizeReference(str[1:labelEnd]) + if label == "" { + return false + } + + if silent { + return true + } + + if s.Env.References == nil { + s.Env.References = make(map[string]map[string]string) + } + if _, ok := s.Env.References[label]; !ok { + s.Env.References[label] = map[string]string{ + "title": title, + "href": href, + } + } + + s.ParentType = oldParentType + + s.Line = startLine + lines + 1 + + return true +} |