chenhg5andClaude
048563b352
Add new utility function StripMarkdown to convert Markdown to plain text for platforms without Markdown support. Integrate into LINE and WeCom platforms to ensure proper message formatting. generated by llmgit Co-Authored-By: Claude <noreply@anthropic.com>
55 lines
1.6 KiB
Go
55 lines
1.6 KiB
Go
package core
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import (
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"regexp"
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"strings"
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)
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var (
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reCodeBlock = regexp.MustCompile("(?s)```[a-zA-Z]*\n?(.*?)```")
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reInlineCode = regexp.MustCompile("`([^`]+)`")
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reBoldAst = regexp.MustCompile(`\*\*(.+?)\*\*`)
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reBoldUnd = regexp.MustCompile(`__(.+?)__`)
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reItalicAst = regexp.MustCompile(`\*(.+?)\*`)
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reItalicUnd = regexp.MustCompile(`_(.+?)_`)
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reStrike = regexp.MustCompile(`~~(.+?)~~`)
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reLink = regexp.MustCompile(`\[([^\]]+)\]\(([^)]+)\)`)
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reHeading = regexp.MustCompile(`(?m)^#{1,6}\s+`)
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reHorizontal = regexp.MustCompile(`(?m)^---+\s*$`)
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reBlockquote = regexp.MustCompile(`(?m)^>\s?`)
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)
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// StripMarkdown converts Markdown-formatted text to clean plain text.
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// Useful for platforms that don't support Markdown rendering (WeChat, LINE, etc.).
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func StripMarkdown(s string) string {
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// Preserve code block content but remove fences
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s = reCodeBlock.ReplaceAllString(s, "$1")
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// Inline code — remove backticks
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s = reInlineCode.ReplaceAllString(s, "$1")
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// Bold / italic / strikethrough — keep text
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s = reBoldAst.ReplaceAllString(s, "$1")
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s = reBoldUnd.ReplaceAllString(s, "$1")
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s = reItalicAst.ReplaceAllString(s, "$1")
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s = reItalicUnd.ReplaceAllString(s, "$1")
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s = reStrike.ReplaceAllString(s, "$1")
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// Links [text](url) → text (url)
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s = reLink.ReplaceAllString(s, "$1 ($2)")
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// Headings — remove # prefix
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s = reHeading.ReplaceAllString(s, "")
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// Horizontal rules
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s = reHorizontal.ReplaceAllString(s, "")
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// Blockquotes
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s = reBlockquote.ReplaceAllString(s, "")
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// Collapse 3+ consecutive blank lines into 2
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s = regexp.MustCompile(`\n{3,}`).ReplaceAllString(s, "\n\n")
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return strings.TrimSpace(s)
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}
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