78 lines
2.1 KiB
Go
78 lines
2.1 KiB
Go
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package richtext
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import (
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"fmt"
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"regexp"
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"strings"
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)
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func RemoveRichText(text string) string {
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// Regular expression to replace <br/> and <p> tags with newline
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reBr := regexp.MustCompile(`<(br|p)(\s[^>]*)?>`)
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text = reBr.ReplaceAllString(text, "\n")
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// Add four full-width spaces after each newline
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reNewline := regexp.MustCompile(`\n`)
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text = reNewline.ReplaceAllString(text, "\n ") // 两个全角空格等于四个半角空格，即四个汉字的距离
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// Regular expression to replace with empty string
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reNbsp := regexp.MustCompile(` `)
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text = reNbsp.ReplaceAllString(text, "")
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// Regular expression to match other HTML tags
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re := regexp.MustCompile("<[^>]*>")
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plainText := re.ReplaceAllString(text, "")
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plainText = strings.TrimSpace(plainText)
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// plainText = " " + plainText
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return plainText
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}
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func ExtractImageURLs(text string) []string {
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re := regexp.MustCompile(`<img[^>]+\bsrc=["']([^"']+)["']`)
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matches := re.FindAllStringSubmatch(text, -1)
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var urls []string
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for _, match := range matches {
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urls = append(urls, match[1])
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}
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return urls
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}
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func ConvertToRichText(plainText string, imageURLs []string) string {
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// 将纯文本分割成段落
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paragraphs := strings.Split(plainText, "\n")
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// 创建一个StringBuilder来构建富文本
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var richText strings.Builder
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// 将每个段落包装在<p>标签中
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for _, paragraph := range paragraphs {
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richText.WriteString("<p>")
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richText.WriteString(paragraph)
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richText.WriteString("</p>")
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}
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// 将每个图片URL包装在<img>标签中，并附加到富文本中
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for _, imageURL := range imageURLs {
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richText.WriteString("<img src=\"")
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richText.WriteString(imageURL)
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richText.WriteString("\" />")
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}
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// 返回富文本字符串
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return richText.String()
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}
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// 传入一个字符串数组，将其包装为一个富文本图片标签
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func ConvertImageURLsToRichText(imageURLs []string) string {
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var richText strings.Builder
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for _, imageURL := range imageURLs {
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richText.WriteString(fmt.Sprintf(`<p><img src="%s" /></p>`, imageURL))
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}
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return richText.String()
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}
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