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Update direct dependencies where possible
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78
vendor/github.com/mattermost/mattermost-server/utils/markdown/inspect.go
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vendored
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78
vendor/github.com/mattermost/mattermost-server/utils/markdown/inspect.go
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// Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
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// See License.txt for license information.
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package markdown
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// Inspect traverses the markdown tree in depth-first order. If f returns true, Inspect invokes f
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// recursively for each child of the block or inline, followed by a call of f(nil).
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func Inspect(markdown string, f func(interface{}) bool) {
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document, referenceDefinitions := Parse(markdown)
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InspectBlock(document, func(block Block) bool {
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if !f(block) {
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return false
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}
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switch v := block.(type) {
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case *Paragraph:
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for _, inline := range MergeInlineText(v.ParseInlines(referenceDefinitions)) {
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InspectInline(inline, func(inline Inline) bool {
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return f(inline)
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})
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}
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}
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return true
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})
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}
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// InspectBlock traverses the blocks in depth-first order, starting with block. If f returns true,
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// InspectBlock invokes f recursively for each child of the block, followed by a call of f(nil).
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func InspectBlock(block Block, f func(Block) bool) {
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if !f(block) {
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return
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}
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switch v := block.(type) {
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case *Document:
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for _, child := range v.Children {
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InspectBlock(child, f)
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}
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case *List:
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for _, child := range v.Children {
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InspectBlock(child, f)
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}
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case *ListItem:
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for _, child := range v.Children {
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InspectBlock(child, f)
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}
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case *BlockQuote:
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for _, child := range v.Children {
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InspectBlock(child, f)
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}
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}
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f(nil)
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}
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// InspectInline traverses the blocks in depth-first order, starting with block. If f returns true,
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// InspectInline invokes f recursively for each child of the block, followed by a call of f(nil).
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func InspectInline(inline Inline, f func(Inline) bool) {
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if !f(inline) {
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return
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}
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switch v := inline.(type) {
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case *InlineImage:
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for _, child := range v.Children {
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InspectInline(child, f)
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}
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case *InlineLink:
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for _, child := range v.Children {
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InspectInline(child, f)
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}
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case *ReferenceImage:
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for _, child := range v.Children {
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InspectInline(child, f)
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}
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case *ReferenceLink:
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for _, child := range v.Children {
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InspectInline(child, f)
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}
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}
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f(nil)
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}
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