31 lines
1 KiB
Go
31 lines
1 KiB
Go
// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
// Package readtime provides a function to estimate the reading time of an article.
|
|
package readingtime
|
|
|
|
import (
|
|
"math"
|
|
"strings"
|
|
"unicode/utf8"
|
|
|
|
"miniflux.app/v2/internal/reader/sanitizer"
|
|
|
|
"github.com/abadojack/whatlanggo"
|
|
)
|
|
|
|
// EstimateReadingTime returns the estimated reading time of an article in minute.
|
|
func EstimateReadingTime(content string, defaultReadingSpeed, cjkReadingSpeed int) int {
|
|
sanitizedContent := sanitizer.StripTags(content)
|
|
langInfo := whatlanggo.Detect(sanitizedContent)
|
|
|
|
var timeToReadInt int
|
|
if langInfo.IsReliable() && (langInfo.Lang == whatlanggo.Jpn || langInfo.Lang == whatlanggo.Cmn || langInfo.Lang == whatlanggo.Kor) {
|
|
timeToReadInt = int(math.Ceil(float64(utf8.RuneCountInString(sanitizedContent)) / float64(cjkReadingSpeed)))
|
|
} else {
|
|
nbOfWords := len(strings.Fields(sanitizedContent))
|
|
timeToReadInt = int(math.Ceil(float64(nbOfWords) / float64(defaultReadingSpeed)))
|
|
}
|
|
|
|
return timeToReadInt
|
|
}
|