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17 lines
427 B
Go
17 lines
427 B
Go
package summary
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import (
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"bytes"
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"github.com/russross/blackfriday"
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)
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// Markdown formats input using a plain-text renderer, and
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// then returns up to the first `wordcount` words as a summary.
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func Markdown(input []byte, wordcount int) []byte {
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words := bytes.Fields(blackfriday.Markdown(input, renderer{}, 0))
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if wordcount > len(words) {
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wordcount = len(words)
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}
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return bytes.Join(words[0:wordcount], []byte{' '})
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}
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