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https://github.com/osmarks/mycorrhiza.git
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50 lines
1.9 KiB
Go
50 lines
1.9 KiB
Go
package backlinks
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import (
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"github.com/bouncepaw/mycorrhiza/internal/hyphae"
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"github.com/bouncepaw/mycorrhiza/mycoopts"
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"git.sr.ht/~bouncepaw/mycomarkup/v5"
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"git.sr.ht/~bouncepaw/mycomarkup/v5/links"
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"git.sr.ht/~bouncepaw/mycomarkup/v5/mycocontext"
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"git.sr.ht/~bouncepaw/mycomarkup/v5/tools"
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)
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// UpdateBacklinksAfterEdit is a creation/editing hook for backlinks index
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func UpdateBacklinksAfterEdit(h hyphae.Hypha, oldText string) {
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oldLinks := extractHyphaLinksFromContent(h.CanonicalName(), oldText)
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contents := fetchText(h)
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newLinks := extractHyphaLinksFromContent(h.CanonicalName(), contents)
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backlinkConveyor <- backlinkIndexEdit{h.CanonicalName(), oldLinks, newLinks, contents, oldText}
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}
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// UpdateBacklinksAfterDelete is a deletion hook for backlinks index
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func UpdateBacklinksAfterDelete(h hyphae.Hypha, oldText string) {
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oldLinks := extractHyphaLinksFromContent(h.CanonicalName(), oldText)
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backlinkConveyor <- backlinkIndexDeletion{h.CanonicalName(), oldLinks, oldText}
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}
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// UpdateBacklinksAfterRename is a renaming hook for backlinks index
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func UpdateBacklinksAfterRename(h hyphae.Hypha, oldName string) {
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contents := fetchText(h)
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actualLinks := extractHyphaLinksFromContent(h.CanonicalName(), contents)
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backlinkConveyor <- backlinkIndexRenaming{oldName, h.CanonicalName(), actualLinks, contents}
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}
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// extractHyphaLinksFromContent extracts local hypha links from the provided text.
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func extractHyphaLinksFromContent(hyphaName string, contents string) []string {
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ctx, _ := mycocontext.ContextFromStringInput(contents, mycoopts.MarkupOptions(hyphaName))
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linkVisitor, getLinks := tools.LinkVisitor(ctx)
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// Ignore the result of BlockTree because we call it for linkVisitor.
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_ = mycomarkup.BlockTree(ctx, linkVisitor)
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foundLinks := getLinks()
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var result []string
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for _, link := range foundLinks {
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switch link := link.(type) {
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case *links.LocalLink:
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result = append(result, link.Target(ctx))
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}
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}
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return result
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}
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