mirror of
https://github.com/nkanaev/yarr.git
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71 lines
1.5 KiB
Go
71 lines
1.5 KiB
Go
package opml
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import (
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"strings"
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"html"
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"fmt"
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)
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type Folder struct {
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Title string
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Folders []Folder
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Feeds []Feed
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}
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type Feed struct {
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Title string
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FeedUrl string
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SiteUrl string
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}
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func (f Folder) AllFeeds() []Feed {
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feeds := make([]Feed, 0)
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feeds = append(feeds, f.Feeds...)
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for _, subfolder := range f.Folders {
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feeds = append(feeds, subfolder.AllFeeds()...)
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}
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return feeds
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}
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var e = html.EscapeString
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var indent = " "
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var nl = "\n"
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func (f Folder) outline(level int) string {
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builder := strings.Builder{}
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prefix := strings.Repeat(indent, level)
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if level > 0 {
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builder.WriteString(prefix + fmt.Sprintf(`<outline text="%s">` + nl, e(f.Title)))
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}
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for _, folder := range f.Folders {
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builder.WriteString(folder.outline(level + 1))
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}
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for _, feed := range f.Feeds {
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builder.WriteString(feed.outline(level + 1))
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}
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if level > 0 {
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builder.WriteString(prefix + `</outline>` + nl)
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}
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return builder.String()
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}
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func (f Feed) outline(level int) string {
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return strings.Repeat(indent, level) + fmt.Sprintf(
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`<outline type="rss" text="%s" xmlUrl="%s" htmlUrl="%s"/>` + nl,
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e(f.Title), e(f.FeedUrl), e(f.SiteUrl),
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)
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}
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func (f Folder) OPML() string {
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builder := strings.Builder{}
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builder.WriteString(`<?xml version="1.0" encoding="UTF-8"?>` + nl)
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builder.WriteString(`<opml version="1.1">` + nl)
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builder.WriteString(`<head><title>subscriptions</title></head>` + nl)
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builder.WriteString(`<body>` + nl)
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builder.WriteString(f.outline(0))
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builder.WriteString(`</body>` + nl)
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builder.WriteString(`</opml>` + nl)
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return builder.String()
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}
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