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* update github.com/blevesearch/bleve v2.0.2 -> v2.0.3 * github.com/denisenkom/go-mssqldb v0.9.0 -> v0.10.0 * github.com/editorconfig/editorconfig-core-go v2.4.1 -> v2.4.2 * github.com/go-chi/cors v1.1.1 -> v1.2.0 * github.com/go-git/go-billy v5.0.0 -> v5.1.0 * github.com/go-git/go-git v5.2.0 -> v5.3.0 * github.com/go-ldap/ldap v3.2.4 -> v3.3.0 * github.com/go-redis/redis v8.6.0 -> v8.8.2 * github.com/go-sql-driver/mysql v1.5.0 -> v1.6.0 * github.com/go-swagger/go-swagger v0.26.1 -> v0.27.0 * github.com/lib/pq v1.9.0 -> v1.10.1 * github.com/mattn/go-sqlite3 v1.14.6 -> v1.14.7 * github.com/go-testfixtures/testfixtures v3.5.0 -> v3.6.0 * github.com/issue9/identicon v1.0.1 -> v1.2.0 * github.com/klauspost/compress v1.11.8 -> v1.12.1 * github.com/mgechev/revive v1.0.3 -> v1.0.6 * github.com/microcosm-cc/bluemonday v1.0.7 -> v1.0.8 * github.com/niklasfasching/go-org v1.4.0 -> v1.5.0 * github.com/olivere/elastic v7.0.22 -> v7.0.24 * github.com/pelletier/go-toml v1.8.1 -> v1.9.0 * github.com/prometheus/client_golang v1.9.0 -> v1.10.0 * github.com/xanzy/go-gitlab v0.44.0 -> v0.48.0 * github.com/yuin/goldmark v1.3.3 -> v1.3.5 * github.com/6543/go-version v1.2.4 -> v1.3.1 * do github.com/lib/pq v1.10.0 -> v1.10.1 again ...
115 lines
3 KiB
Go
Vendored
115 lines
3 KiB
Go
Vendored
package parser
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import (
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"bytes"
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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 fencedCodeBlockParser struct {
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}
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var defaultFencedCodeBlockParser = &fencedCodeBlockParser{}
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// NewFencedCodeBlockParser returns a new BlockParser that
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// parses fenced code blocks.
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func NewFencedCodeBlockParser() BlockParser {
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return defaultFencedCodeBlockParser
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}
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type fenceData struct {
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char byte
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indent int
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length int
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node ast.Node
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}
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var fencedCodeBlockInfoKey = NewContextKey()
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func (b *fencedCodeBlockParser) Trigger() []byte {
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return []byte{'~', '`'}
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}
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func (b *fencedCodeBlockParser) Open(parent ast.Node, reader text.Reader, pc Context) (ast.Node, State) {
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line, segment := reader.PeekLine()
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pos := pc.BlockOffset()
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if pos < 0 || (line[pos] != '`' && line[pos] != '~') {
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return nil, NoChildren
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}
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findent := pos
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fenceChar := line[pos]
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i := pos
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for ; i < len(line) && line[i] == fenceChar; i++ {
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}
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oFenceLength := i - pos
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if oFenceLength < 3 {
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return nil, NoChildren
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}
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var info *ast.Text
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if i < len(line)-1 {
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rest := line[i:]
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left := util.TrimLeftSpaceLength(rest)
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right := util.TrimRightSpaceLength(rest)
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if left < len(rest)-right {
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infoStart, infoStop := segment.Start-segment.Padding+i+left, segment.Stop-right
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value := rest[left : len(rest)-right]
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if fenceChar == '`' && bytes.IndexByte(value, '`') > -1 {
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return nil, NoChildren
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} else if infoStart != infoStop {
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info = ast.NewTextSegment(text.NewSegment(infoStart, infoStop))
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}
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}
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}
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node := ast.NewFencedCodeBlock(info)
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pc.Set(fencedCodeBlockInfoKey, &fenceData{fenceChar, findent, oFenceLength, node})
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return node, NoChildren
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}
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func (b *fencedCodeBlockParser) Continue(node ast.Node, reader text.Reader, pc Context) State {
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line, segment := reader.PeekLine()
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fdata := pc.Get(fencedCodeBlockInfoKey).(*fenceData)
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// if code block line starts with a tab, keep a tab as it is.
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if segment.Padding != 0 {
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preserveLeadingTabInCodeBlock(&segment, reader, fdata.indent)
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}
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w, pos := util.IndentWidth(line, reader.LineOffset())
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if w < 4 {
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i := pos
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for ; i < len(line) && line[i] == fdata.char; i++ {
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}
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length := i - pos
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if length >= fdata.length && util.IsBlank(line[i:]) {
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newline := 1
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if line[len(line)-1] != '\n' {
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newline = 0
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}
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reader.Advance(segment.Stop - segment.Start - newline - segment.Padding)
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return Close
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}
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}
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pos, padding := util.DedentPositionPadding(line, reader.LineOffset(), segment.Padding, fdata.indent)
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seg := text.NewSegmentPadding(segment.Start+pos, segment.Stop, padding)
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node.Lines().Append(seg)
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reader.AdvanceAndSetPadding(segment.Stop-segment.Start-pos-1, padding)
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return Continue | NoChildren
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}
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func (b *fencedCodeBlockParser) Close(node ast.Node, reader text.Reader, pc Context) {
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fdata := pc.Get(fencedCodeBlockInfoKey).(*fenceData)
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if fdata.node == node {
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pc.Set(fencedCodeBlockInfoKey, nil)
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}
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}
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func (b *fencedCodeBlockParser) CanInterruptParagraph() bool {
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return true
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}
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func (b *fencedCodeBlockParser) CanAcceptIndentedLine() bool {
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return false
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}
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